summaryrefslogtreecommitdiff
path: root/gcc/fortran/ChangeLog
blob: 98fdf1c5e9fb2ef95ad97a1597a9b33bb6e168eb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2021-05-05  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-05-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/100274
	* interface.c (gfc_compare_actual_formal): Continue checks after
	emitting warning for argument length mismatch.
	* trans-expr.c (gfc_conv_procedure_call): Check for NULL pointer
	dereference.

2021-04-27  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-04-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/100154
	* check.c (variable_check): Allow function reference having a data
	pointer result.
	(arg_strlen_is_zero): New function.
	(gfc_check_fgetputc_sub): Add static check of character and status
	arguments.
	(gfc_check_fgetput_sub): Likewise.
	* intrinsic.c (add_subroutines): Fix argument name for the
	character argument to intrinsic subroutines fget[c], fput[c].

2021-04-02  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-04-01  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/99840
	* simplify.c (gfc_simplify_transpose): Properly initialize
	resulting shape.

2021-03-24  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2021-03-22  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/99688
	* match.c (select_type_set_tmp, gfc_match_select_type) Fix 'name'
	buffersize to avoid out of bounds.
	* resolve.c (resolve_select_type): Likewise.

2021-03-20  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-10-27  Harald Anlauf  <anlauf@gmx.de>

	* resolve.c (gfc_impure_variable): A dummy argument with the VALUE
	attribute may be redefined without making a procedure impure.

2021-03-15  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2021-03-15  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/99545
	* trans-stmt.c (gfc_trans_allocate): Mark the initialization
	assignment by setting init_flag.

2021-02-26  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-01-14  Harald Anlauf  <anlauf@gmx.de>

	* gfortran.h (gfc_resolve_substring): Add prototype.
	* primary.c (match_string_constant): Simplify substrings with
	constant starting and ending points.
	* resolve.c: Rename resolve_substring to gfc_resolve_substring.
	(gfc_resolve_ref): Use renamed function gfc_resolve_substring.

2021-02-24  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2021-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/99124
	* resolve.c (resolve_fl_procedure): Include class results in
	the test for F2018, C15100.
	* trans-array.c (get_class_info_from_ss): Do not use the saved
	descriptor to obtain the class expression for variables. Use
	gfc_get_class_from_expr instead.

2021-02-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-02-21  Harald Anlauf  <anlauf@gmx.de>

	* trans-expr.c (gfc_conv_procedure_call): Do not add clobber to
	allocatable intent(out) argument.

2021-02-11  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2021-02-11  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/99060
	* primary.c (gfc_match_varspec): Test for non-null 'previous'
	before using its name in the error message.

2021-01-28  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-01-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/86470
	* trans.c (gfc_call_malloc): Allocate area of size 1 if passed
	size is NULL (as documented).

2021-01-25  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2021-01-25  Steve Kargl  <kargl@gcc.gnu.org>

	PR fortran/98517
	* resolve.c (resolve_charlen): Check that length expression is
	present before testing for scalar/integer..

2021-01-25  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-12-29  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/93833
	* trans-array.c (get_array_ctor_var_strlen): If the character
	length backend_decl cannot be found, convert the expression and
	use the string length. Clear up some minor white space issues
	in the rest of the file.

2021-01-23  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-12-26  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/98022
	* data.c (gfc_assign_data_value): Throw an error for inquiry
	references. Follow with corrected code that would provide the
	expected result and provides clean error recovery.

2021-01-23  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-12-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/98022
	* data.c (gfc_assign_data_value): Handle inquiry references in
	the data statement object list.

2021-01-19  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-01-04  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91640
	* trans-expr.c (gfc_conv_procedure_call): Avoid copy-out for nonvariable
	arguments to contiguous dummy args.  Avoid re-checking whether fsym is
	NULL.

2021-01-07  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-01-06  Harald Anlauf  <anlauf@gmx.de>

	* resolve.c (resolve_component): Add check for valid CLASS
	reference before trying to access CLASS data.

2021-01-07  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-08-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96325
	* primary.c (gfc_match_varspec): In the case that a component
	reference is added to an intrinsic type component, emit the
	error message in this function.

2021-01-07  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-12-26  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83118
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Make
	sure that class expressions are captured for dummy arguments by
	use of gfc_get_class_from_gfc_expr otherwise the wrong vptr is
	used.
	* trans-expr.c (gfc_get_class_from_gfc_expr): New function.
	(gfc_get_class_from_expr): If a constant expression is
	encountered, return NULL_TREE;
	(gfc_trans_assignment_1): Deallocate rhs allocatable components
	after passing derived type function results to class lhs.
	* trans.h : Add prototype for gfc_get_class_from_gfc_expr.

2021-01-07  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-12-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83118
	PR fortran/96012
	* resolve.c (resolve_ordinary_assign): Generate a vtable if
	necessary for scalar non-polymorphic rhs's to unlimited lhs's.
	* trans-array.c (get_class_info_from_ss): New function.
	(gfc_trans_allocate_array_storage): Defer obtaining class
	element type until all sources of class exprs are tried. Use
	class API rather than TREE_OPERAND. Look for class expressions
	in ss->info by calling get_class_info_from_ss. After, obtain
	the element size for class descriptors. Where the element type
	is unknown, cast the data as character(len=size) to overcome
	unlimited polymorphic problems.
	(gfc_conv_ss_descriptor): Do not fix class variable refs.
	(build_class_array_ref, structure_alloc_comps): Replace code
	replicating the new function gfc_resize_class_size_with_len.
	(gfc_alloc_allocatable_for_assignment): Obtain element size
	for lhs in cases of deferred characters and class enitities.
	Move code for the element size of rhs to start of block. Clean
	up extraction of class parameters throughout this function.
	After the shape check test whether or not the lhs and rhs
	element sizes are the same. Use earlier evaluation of
	'cond_null'. Reallocation of lhs only to happen if size changes
	or element size changes.
	* trans-expr.c (gfc_resize_class_size_with_len): New function.
	(gfc_get_class_from_expr): If a constant expression is
	encountered, return NULL_TREE;
	(trans_scalar_class_assign): New function.
	(gfc_conv_procedure_call): Ensure the vtable is present for
	passing a non-class actual to an unlimited formal.
	(trans_class_vptr_len_assignment): For expressions of type
	BT_CLASS, extract the class expression if necessary. Use a
	statement block outside the loop body. Ensure that 'rhs' is
	of the correct type. Obtain rhs vptr in all circumstances.
	(gfc_trans_scalar_assign): Call trans_scalar_class_assign to
	make maximum use of the vptr copy in place of assignment.
	(trans_class_assignment): Actually do reallocation if needed.
	(gfc_trans_assignment_1): Simplify some of the logic with
	'realloc_flag'. Set 'vptr_copy' for all array assignments to
	unlimited polymorphic lhs.
	* trans.c (gfc_build_array_ref): Call gfc_resize_class_size_
	with_len to correct span for unlimited polymorphic decls.
	* trans.h : Add prototype for gfc_resize_class_size_with_len.

2021-01-06  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-04-14  Tobias Burnus  <tobias@codesourcery.com>

	* module.c (gfc_match_use): Fix name-conflict check for use-associating
	the same symbol again in a submodule.

2021-01-04  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2021-01-01  Harald Anlauf  <anlauf@gmx.de>

	* class.c (gfc_find_vtab): Add check on attribute is_class.

2021-01-04  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-12-17  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92587
	* match.c (gfc_match_assignment): Move gfc_find_vtab call from here ...
	* resolve.c (gfc_resolve_code): ... to here.

2021-01-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96320
	* interface.c (gfc_check_dummy_characteristics): If a module
	procedure arrives with assumed shape in the interface and
	deferred shape in the procedure itself, update the latter and
	copy the lower bounds.

2021-01-04  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/94246
	* expr.c (scalarize_intrinsic_call): Remove the error checking.
	Make a copy of the expression to be simplified and only replace
	the original if the simplification succeeds.

2020-12-29  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-12-25  Harald Anlauf  <anlauf@gmx.de>

	* data.c (gfc_assign_data_value): Restrict use of
	create_character_initializer to constant initializers.
	* trans-expr.c (gfc_conv_initializer): Ensure that character
	initializer is constant, otherwise fall through to get the same
	error handling as for non-character cases.

2020-12-28  Paul Thomas  <pault@gcc.gnu.org>

	Backported from master:
	2020-08-20  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/96100
	PR fortran/96101
	* trans-array.c (get_array_charlen): Tidy up the evaluation of
	the string length for array constructors. Avoid trailing array
	references. Ensure string lengths of deferred length components
	are set. For parentheses operator apply string  length to both
	the primary expression and the enclosed expression.

2020-12-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-12-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/98307
	* trans-stmt.c (check_forall_dependencies): Extend dependency
	check to allocatable components of derived types.

2020-12-11  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-11-29  Harald Anlauf  <anlauf@gmx.de>

	* expr.c (simplify_parameter_variable): Fix up character length
	after copying an array-valued expression.

2020-12-04  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-12-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95342
	* decl.c (gfc_match_function_decl): Avoid NULL pointer dereference.
	(gfc_match_subroutine): Likewise.

2020-11-12  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-11-10  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/95847
	* trans-decl.c (gfc_get_symbol_decl): Do not (re)set the location
	of an external procedure.
	(build_entry_thunks, generate_coarray_init, create_main_function,
	gfc_generate_function_code): Use fndecl's location in BIND_EXPR.

2020-11-06  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-11-06  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/97652
	* module.c (mio_symbol): Fix symbol name for pdt_type.

2020-10-08  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-10-04  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/97272
	* trans-intrinsic.c (strip_kind_from_actual): Helper function for
	removal of KIND argument.
	(gfc_conv_intrinsic_minmaxloc): Ignore KIND argument here, as it
	is treated elsewhere.

2020-09-28  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Revert:
	2020-09-27  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95614
	* decl.c (gfc_get_common): Use gfc_match_common_name instead
	of match_common_name.
	* decl.c (gfc_bind_idents): Use gfc_match_common_name instead
	of match_common_name.
	* match.c : Rename match_common_name to gfc_match_common_name.
	* match.c (gfc_match_common): Use gfc_match_common_name instead
	of match_common_name.
	* match.h : Rename match_common_name to gfc_match_common_name.
	* resolve.c (resolve_common_vars): Check each symbol in a
	common block has a global symbol.  If there is a global symbol
	issue an error if the symbol type is known as is not a common
	block name.

2020-09-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-09-27  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95614
	* decl.c (gfc_get_common): Use gfc_match_common_name instead
	of match_common_name.
	* decl.c (gfc_bind_idents): Use gfc_match_common_name instead
	of match_common_name.
	* match.c : Rename match_common_name to gfc_match_common_name.
	* match.c (gfc_match_common): Use gfc_match_common_name instead
	of match_common_name.
	* match.h : Rename match_common_name to gfc_match_common_name.
	* resolve.c (resolve_common_vars): Check each symbol in a
	common block has a global symbol.  If there is a global symbol
	issue an error if the symbol type is known as is not a common
	block name.

2020-09-19  Tobias Burnus  <tobias@codesourcery.com>

	Backported from master:
	2020-09-17  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/96041
	PR fortran/93423
	* decl.c (gfc_match_submod_proc): Avoid later double-free
	in the error case.

2020-09-19  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-07-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93423
	* resolve.c (resolve_symbol): Avoid NULL pointer dereference.

2020-09-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backported from master:
	2020-09-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* intrinsic.texi: Fix description of FINDLOC result.

2020-08-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-08-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95882
	* decl.c (char_len_param_value): Check gfc_seen_div0 and
	if it is set return MATCH_ERROR.

2020-07-27  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-07-14  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95612
	* expr.c (gfc_check_pointer_assigb): Output an error if
	rvalue is a zero sized array or output an error if rvalue
	doesn't have a symbol tree.

2020-07-26  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-06-22  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95585
	* check.c (gfc_check_reshape): Add check for a value when
	the symbol has an attribute flavor FL_PARAMETER.

2020-07-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-07-21  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89574
	* trans-decl.c (gfc_get_extern_function_decl): Check whether a
	symbol belongs to a different module.

2020-07-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96018
	* frontend-passes.c (gfc_check_externals): Adjust formatting.
	(implicit_pure_call): New function.
	(implicit_pure_expr): New function.
	(gfc_fix_implicit_pure): New function.
	* gfortran.h (gfc_fix_implicit_pure): New prototype.
	* parse.c (translate_all_program_units): Call gfc_fix_implicit_pure.

2020-07-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backported from master:
	2020-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/96220
	* dump-parse-tree.c (get_c_type_name): Always use the entries from
	c_interop_kinds_table to find the correct C type.

2020-07-08  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-07-06  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95709
	* resolve.c (gfc_resolve_code): Check for valid arguments to
	assigned GOTO.

2020-07-07  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-07-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/93337
	* class.c (gfc_find_derived_vtab): Punt if name is not set.

2020-07-05  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-30  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88379
	* resolve.c (resolve_assoc_var): Avoid NULL pointer dereference.

2020-07-01  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-29  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71706
	* trans-stmt.c (gfc_trans_sync): Do proper kind conversion in
	bounds-checking code.

2020-07-01  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95880
	* symbol.c (gfc_add_type): If sym->ns->proc_name is set, use it,
	otherwise fall back to sym->name.

2020-07-01  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-07-01  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95829
	* decl.c (gfc_match_decl_type_spec): Compare with "* ) " instead
	of "*)".

2020-06-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backported from master:
	2020-06-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/95743
	* trans-decl.c (gfc_generate_function_code): Do not generate
	recursion check for compiler-generated procedures.

2020-06-27  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-27  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95881
	* resolve.c (resolve_symbol): Avoid NULL pointer dereference.

2020-06-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95689
	* interface.c (check_sym_interfaces): Enlarge temporary buffer,
	and add check on length on mangled name to prevent overflow.

2020-06-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95689
	* interface.c (check_sym_interfaces): Enlarge temporary buffer,
	and add check on length on mangled name to prevent overflow.

2020-06-23  Harald Anlauf  <anlauf@gmx.de>

	Backported from master:
	2020-06-20  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95587
	* match.c (gfc_match_equivalence): Check constraints on
	EQUIVALENCE objects also for CLASS variables.

2020-06-23  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master:
	2020-06-22  Steven G. Kargl  <kargl@gcc.gnu.org>
		    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/95708
	* intrinsic.c (add_functions): Replace CLASS_INQUIRY with
	CLASS_TRANSFORMATIONAL for intrinsic num_images.
	(make_generic): Replace ACTUAL_NO with ACTUAL_YES for
	intrinsic team_number.
	* resolve.c (resolve_fl_procedure): Check pointer ts.u.derived
	exists before using it.

2020-06-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95503
	* expr.c (gfc_check_pointer_assign): Skip contiguity check of rhs
	of pointer assignment if lhs cannot be simply contiguous.

2020-06-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94109
	* class.c (finalize_component): Return early if finalization has
	already happened for expression and component within namespace.
	* gfortran.h (gfc_was_finalized): New type.
	(gfc_namespace): Add member was_finalzed.
	(gfc_expr): Remove finalized.
	* symbol.c (gfc_free_namespace): Free was_finalized.

2020-06-11  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl   <kargl@gcc.gnu.org>

	PR fortran/95611
	* decl.c (access_attr_decl): Use correct symbol in error message.

2020-06-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95091
	* class.c (gfc_hash_value): Add cast.

2020-06-11  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95091
	* class.c (get_unique_type_string, gfc_hash_value): Enlarge
	buffers, and check whether the strings returned by
	get_unique_type_string() fit.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95373
	* primary.c (is_inquiry_ref): Move validity check of inquiry
	references against selected Fortran standard from here...
	(gfc_match_varspec) ...to here.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95373
	* primary.c (is_inquiry_ref): Check validity of inquiry
	references against selected Fortran standard.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95106
	* trans-common.c (gfc_sym_mangled_common_id): Enlarge temporaries
	for name-mangling.

2020-06-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95530
	PR fortran/95537
	* decl.c (gfc_match_decl_type_spec): Enlarge buffer, and enhance
	string copy to detect buffer overflow.
	* gfortran.h (gfc_common_head): Enlarge buffer.
	* trans-common.c (finish_equivalences): Enhance string copy to
	detect buffer overflow.

2020-06-05  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Harald Anlauf  <anlauf@gmx.de>

	PR fortran/95500
	* trans-expr.c (gfc_conv_expr_reference): Do not dereference NULL
	pointer.

2020-06-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/94361
	* class.c (finalize_component): Use expr->finalized instead of
	comp->finalized.
	* gfortran.h (gfc_component): Remove finalized member.
	(gfc_expr): Add it here instead.

2020-05-28  Steven G. Kargl  <kargl@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>
	    Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/94397
	* match.c (gfc_match_type_spec): New variable ok initialised
	to true. Set ok with the return value of gfc_reduce_init_expr
	called only if the expression is not EXPR_CONSTANT and is not
	EXPR_VARIABLE. Add !ok to the check for type not being integer
	or the rank being greater than zero.

2020-05-28  Tobias Burnus  <tobias@codesourcery.com>
	    Mark Eggleston  <markeggleston@gnu.gcc.org>

	PR fortran/50392
	* trans-decl.c (gfc_get_symbol_decl): Remove unnecessary block
	delimiters.  Add auxiliary variables if a label is assigned to
	a return variable. (gfc_gat_fake_result): If the symbol has an
	assign attribute set declaration from the symbol's backend
	declaration.

2020-05-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/95191
	* libgfortran.h (libgfortran_error_codes): Add
	LIBERROR_BAD_WAIT_ID.

2020-05-20  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/39695
	* resolve.c (resolve_fl_procedure): Set name depending on
	whether the result attribute is set.  For PROCEDURE/RESULT
	conflict use the name in sym->ns->proc_name->name.
	* symbol.c (gfc_add_type): Add check for function and result
	attributes use sym->ns->proc_name->name if both are set.
	Where the symbol cannot have a type use the name in
	sym->ns->proc_name->name.

2020-05-13  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from master
	2020-05-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93497
	* decl.c (char_len_param_value): Check whether character
	length expression is of type EXPR_OP and if so simplify it.
	* resolve.c (resolve_charlen): Reject length if it has a
	rank.

2020-05-11  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from mainline
	2020-05-11  Janus Weil  <janus@gcc.gnu.org>
		    Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/59107
	* gfortran.h: Rename field resolved as resolve_symbol_called
	and assign two 2 bits instead of 1.
	* interface.c (gfc_find_typebound_dtio_proc): Use new field name.
	* resolve.c (gfc_resolve_intrinsic): Replace check of the formal
	field with resolve_symbol_called is at least 2, if it is not
	set the field to 2.  (resolve_typebound_procedure): Use new field
	name.  (resolve_symbol): Use new field name and check whether it
	is at least 1, if it is not set the field to 1.

2020-05-04  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline.
	2020-03-08  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/93581
	* resolve.c (gfc_resolve_ref): Modify array refs to be elements
	if the ref chain ends in INQUIRY_LEN.
	* trans-array.c (gfc_get_dataptr_offset): Provide the offsets
	for INQUIRY_RE and INQUIRY_IM.

2020-04-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93956
	PR fortran/94788
	* expr.c (gfc_check_pointer_assign): Revert patch for PR 93956.
	* interface.c: Likewise.

2020-04-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/93956
	* expr.c (gfc_check_pointer_assign): Also set subref_array_pointer
	when a function returns a pointer.
	* interface.c (gfc_set_subref_array_pointer_arg): New function.
	(gfc_procedure_use): Call it.

2020-04-20  Harald Anlauf  <anlauf@gmx.de>

	Backport from mainline.
	PR fortran/93364
	* array.c (gfc_set_array_spec): Check for sum of rank and corank
	not exceeding GFC_MAX_DIMENSIONS.

2020-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk.
	PR fortran/94270
	* trans-decl.c (generate_local_decl): Do not warn if the
	symbol is artifical.

2020-04-06  Fritz Reese  <foreese@gcc.gnu.org>

	Backport from master
	Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93686
	* decl.c (gfc_match_data): Handle data matching for derived type
	pointers.

2020-04-02  Mark Eggleston <markeggleston@gcc.gnu.org>

	Backport from master
	Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/93498
	* check.c (gfc_check_findloc):  If the kinds of the arguments
	differ goto label "incompat".

2020-04-02  Mark Eggleston <markeggleston@gcc.gnu.org>

	Backport from master
	2020-04-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/94030
	* resolve.c (resolve_equivalence): Correct formatting
	around the label "identical_types".  Instead of using
	gfc_resolve_array_spec use is_non_constants_shape_array
	to determine whether the array can be used in a in an
	equivalence statement.

2020-03-28  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline
	2020-03-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/94348
	* decl.c (gfc_match_submod_proc): Add result var to the
	proc's namespace.

2020-03-25  Mark Eggleston <markeggleston@gcc.gnu.org>

	Backport from master
	2020-03-25  Mark Eggleston <markeggleston@gcc.gnu.org>

	PR fortran/93484
	* match.c (gfc_match_type_spec): Replace gfc_match_init_expr with
	gfc_match_expr. Return m if m is MATCH_NO or MATCH_ERROR.

2020-03-12  Release Manager

	* GCC 9.3.0 released.

2020-03-05  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/92976
	* match.c (select_type_set_tmp): Variable 'selector' to replace
	select_type_stack->selector. If the selector array spec has
	explicit bounds, make the temporary's bounds deferred.

2020-02-19  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from mainline
	2020-02-18  Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/93714
	* expr.c (gfc_check_pointer_assign): Move check for
	matching character length to after checking the lvalue
	attributes for target or pointer.

2020-02-18  Mark Eggleston  <markeggleston@gcc.gnu.org>

	Backported from mainline
	2020-02-18  Steven G. Kargl  <kargl@gcc.gnu.org>
	            Mark Eggleston  <markeggleston@gcc.gnu.org>

	PR fortran/93580
	* primary.c (gfc_match_varspec): If the symbol following %
	is re or im and the primary expression type is not BT_COMPLEX
	issue an error. If the symbol is len and the primary
	expression type is not BT_CHARACTER is an error.

2020-02-13  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2020-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/93463
	* openmp.c (oacc_code_to_statement): Handle
	EXEC_OACC_{ROUTINE,UPDATE,WAIT,CACHE,{ENTER,EXIT}_DATA,DECLARE}.

2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline
	2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93541
	* intrinisic.texi (OpenMP Modules OMP_LIB and OMP_LIB_KINDS):
	Add undocumented parameters from omp_lib.f90.in.

2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline
	2020-01-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93462
	* frontend-passes.c (gfc_code_walker): For EXEC_OACC_ATOMIC, set
	in_omp_atomic to true prevent front-end optimization.

2020-02-03  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline
	2020-01-21  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/93309
	* interface.c (gfc_procedure_use): Also check parent namespace for
	'implict none (external)'.
	* symbol.c (gfc_get_namespace): Don't set has_implicit_none_export
	to parent namespace's setting.

2020-01-22  Jakub Jelinek  <jakub@redhat.com>

	* parse.c (parse_omp_structured_block): Handle ST_OMP_TARGET_PARALLEL.
	* trans-openmp.c (gfc_trans_omp_target)
	<case EXEC_OMP_TARGET_PARALLEL>: Call pushlevel first.

	PR fortran/93329
	* openmp.c (omp_code_to_statement): Handle remaining EXEC_OMP_*
	cases.

2020-01-17  Mark Eggleston  <mark.eggleston@codethink.com>

	Backport from mainline
	Mark Eggleston  <mark.eggleston@codethink.com>

	PR fortran/93236
	* resolve.c (resolve_types): Declare boolean recursive and set with the
	value of the recursive attribute of namespace proc_name symbol
	structure if it exists.  Call gfc_save_all if both flag_automatic and
	recursive are false or ns->save_all is true.

2020-01-10  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline
	2020-01-09  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/84135
	* array.c (gfc_set_array_spec): Fix shifting of codimensions
	when adding a dimension.
	* decl.c (merge_array_spec): Ditto. Fix using correct codimensions.

2019-12-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/92961
	* gfortran.h (gfc_seen_div0): Add declaration.
	* arith.h (gfc_seen_div0): Add definition.
	(eval_intrinsic): For integer division by zero, set gfc_seen_div0.
	* decl.c (variable_decl):  If resolution resp. simplification
	fails for array spec and a division of zero error has been
	seen, return MATCH_ERROR.

2019-12-21  Paul Thomas  <pault@gcc.gnu.org>

	Backported from mainline
	PR fortran/92753
	* expr.c (find_inquiry_ref): Catch INQUIRY_LEN case, where the
	temporary expression has been converted to a constant and make
	the new expression accordingly. Correct the error in INQUIRY_RE
	and INQUIRY_IM cases. The original rather than the resolved
	expression was being used as the source in mpfr_set.

2019-12-20  Jakub Jelinek  <jakub@redhat.com>

	Backported from mainline
	2019-12-19  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92977
	* frontend-passes.c (call_external_blas): Use || instead of |.

	PR fortran/92977
	* frontend-passes.c (in_omp_atomic): New variable.
	(cfe_expr_0, matmul_to_var_expr, matmul_temp_args,
	inline_matmul_assign, call_external_blas): Don't optimize in
	EXEC_OMP_ATOMIC.
	(optimize_namespace): Clear in_omp_atomic.
	(gfc_code_walker): Set in_omp_atomic for EXEC_OMP_ATOMIC, save/restore
	it around.

	2019-12-11  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92899
	* trans-openmp.c (gfc_trans_omp_atomic): For GFC_OMP_ATOMIC_SWAP,
	do look through conversion on expr2 if any.

	2019-12-06  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92775
	* trans.h (struct lang_type, struct lang_decl): Remove span member.
	(GFC_DECL_SPAN, GFC_TYPE_ARRAY_SPAN): Remove macros.
	* trans-array.h (gfc_get_descriptor_offsets_for_info): Add another
	argument.
	* trans-array.c (gfc_get_descriptor_offsets_for_info): Add SPAN_OFF
	argument and initialize *SPAN_OFF to the offset of span field.
	* trans-types.c (gfc_get_array_descr_info): Adjust
	gfc_get_descriptor_offsets_for_info caller.  Compute elem_size
	as base->span instead of TYPE_SIZE_UNIT (etype) constant.

	2019-12-05  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/92781
	* trans-decl.c (gfc_get_symbol_decl): If sym->backend_decl is
	current_function_decl, add length to current rather than parent
	function and expect DECL_CONTEXT (length) to be current_function_decl.

	2019-11-27  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/91944
	* simplify.c (gfc_simplify_spread): Check gfc_init_expr_flag instead
	of gfc_current_ns->sym_root->n.sym->attr.flavor == FL_PARAMETER.

2019-12-12  Harald Anlauf  <anlauf@gmx.de>

	Backport from mainline
	PR fortran/92898
	* check.c (gfc_check_is_contiguous): Simplify check to handle
	arbitrary NULL() argument.

2019-12-11 Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92897
	* array.c (gfc_set_array_spec):  Remove invalid assert() triggered
	by invalid Fortran code.

2019-11-29  Harald Anlauf  <anlauf@gmx.de>

	Backport from mainline
	PR fortran/92629
	* simplify.c (convert_mpz_to_unsigned): Skip assert for argument
	range when -fno-range-check is specified.

2019-11-25  Tobias Burnus  <tobias@codesourcery.com

	Backport from mainline
	2019-10-11  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92050
	* trans-expr.c (gfc_conv_procedure_call): Handle code generated
	by -fcheck=all.

2019-11-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/92113
	* trans-decl.c (gfc_get_symbol_decl): If __def_init actually
	contains a value, put it into  the read-only section.

2019-11-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/92321
	* frontend-passes.c (call_external_blas): Commit symbol for
	external BLAS routine.

2019-11-08  Tobias Burnus  <tobias@codesourcery.com

	Backport from mainline
	2019-11-08  Tobias Burnus  <tobias@codesourcery.com

	PR fortran/91253
	* scanner.c (skip_fixed_comments): Move comment
	lines to next if block.
	(gfc_next_char_literal): Fix continue_line setting.
	(get_file): Remove bogus ATTRIBUTE_UNUSED.

2019-11-05  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92208
	Backport from mainline
	2019-10-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92277
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Fix DECL_ARTIFICIAL
	checking.

2019-11-04  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline
	2019-10-30  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92208
	* trans-array.c (gfc_conv_array_parameter): Only copy
	string-length backend_decl if expression is not a function.

2019-11-04  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline
	2019-10-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92284.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Free CFI descriptor
	at the end; partial revised revert of Rev. 277502.

2019-10-28  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/91926
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Correct the
	assignment of the attribute field to account correctly for an
	assumed shape dummy. Assign separately to the gfc and cfi
	descriptors since the atribute can be different. Add branch to
	correctly handle missing optional dummies.

2019-10-28  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline
	2019-10-28  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91863
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Don't free data
	memory as that's done on the Fortran side.
	(gfc_conv_procedure_call): Handle void* pointers from
	gfc_conv_gfc_desc_to_cfi_desc.

2019-10-27  Paul Thomas  <pault@gcc.gnu.org>

	Backport from mainline
	PR fortran/86248
	* resolve.c (flag_fn_result_spec): Correct a typo before the
	function declaration.
	* trans-decl.c (gfc_sym_identifier): Boost the length of 'name'
	to allow for all variants. Simplify the code by using a pointer
	to the symbol's proc_name and taking the return out of each of
	the conditional branches. Allow symbols with fn_result_spec set
	that do not come from a procedure namespace and have a module
	name to go through the non-fn_result_spec branch.

2019-10-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/92174
	* decl.c (attr_decl1): Move check for F2018:C822 from here ...
	* array.c (gfc_set_array_spec): ... to here.

2019-10-18  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69455
	* trans-decl.c (generate_local_decl): Avoid misconstructed
	intrinsic modules in a BLOCK construct.

2019-10-18  Tobias Burnus  <tobias@codesourcery.com>

	Backport from mainline
	2019-10-18  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/91586
	* class.c (gfc_find_derived_vtab): Return NULL
	instead of deref'ing NULL pointer.

2019-10-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83113
	PR fortran/89943
	decl.c (gfc_match_function_decl): Ignore duplicate BIND(C) for function
	declaration in submodule.  Implement at check for F2018 C1550.
	(gfc_match_entry): Use temporary for locus, which allows removal of
	one gfc_error_now().
	(gfc_match_subroutine): Ignore duplicate BIND(C) for subroutine
	declaration in submodule.  Implement at check for F2018 C1550.

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91715
	* decl.c (gfc_match_prefix): If matching a type-spec returns an error,
	it's an error so re-act correctly.

2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91649
	check.c (gfc_check_findloc): Additional checking for valid arguments

2019-10-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91801
	* simplify.c (gfc_simplify_reshape): Convert a gcc_assert into a
	gfc_error as a user can easily hit the condition.

2019-10-07  Thomas Koenig <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/84487
	* trans-decl.c (gfc_get_symbol_decl): For __def_init, set
	DECL_ARTIFICAL and do not set TREE_READONLY.

2019-10-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/47054
	* decl.c (variable_decl): Do not search parent namespace for symbol.

2019-10-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91942
	* io.c (match_vtag): Check for non-NULL result->symtree.
	(match_out_tag): Check for invalid constant due to inquiry parameter.
	(match_filepos): Instead of a syntax error, go to cleanup to get better
	error messages.

2019-10-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91785
	* primary.c (gfc_match_varspec): Ensure an inquiry parameter has
	it locus set.

2019-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91864
	* gcc/fortran/io.c (match_io_element): An inquiry parameter cannot be
	read into.
	* gcc/fortran/match.c (gfc_match_allocate): An inquiry parameter
	can be neither an allocate-object nor stat variable.
	(gfc_match_deallocate): An inquiry parameter cannot be deallocated.

2019-10-01  Steven G. Kargl  <kargl@gcc.ngu.org>

	Backport of r276254+276265
	PR fortran/91802
	* decl.c (attr_decl1): Check if rank+corank > 15.

2019-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91714
	* decl.c (gfc_match_decl_type_spec):  Issue errors for a few
	mangled types.

2019-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91641
	* check.c (gfc_check_is_contiguous): null() cannot be an actual
	argument to is_contiguous().

2019-09-21  Paul Thomas  <pault@gcc.gnu.org>

	Backport from mainline
	PR fortran/91588
	* expr.c (check_inquiry): Remove extended component refs by
	using symbol pointers. If a function argument is an associate
	variable with a constant target, copy the target expression in
	place of the argument expression. Check that the charlen is not
	NULL before using the string length.

2019-09-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91727
	* resolve.c (conformable_arrays):  If array-spec is NULL, then
	allocate-object is a scalar.  a conformability check only occurs
	for an array source-expr.

2019-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/91550
	* frontend-passes.c (do_subscript): If step equals
	zero, a previuos error has been reported; do nothing
	in this case.
	* resolve.c (gfc_resolve_iterator): Move error checking
	after type conversion.

2019-09-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/91557
	* trans-decl.c (generate_local_decl): Do not warn if the symbol
	is artificial.
	* trans-types.c (get_formal_from_actual_arglist): Set artificial
	attribute on dummy arguments.

2019-09-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91553
	* simplify.c (gfc_convert_constant):  During conversion check if the
	constant is enclosed in parenthesis, and simplify expression.

2019-09-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91566
	* simplify.c (gfc_simplify_merge): Need to simplify expression
	after insertation of parenthesis.

2019-09-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91642
	* io.c (gfc_match_inquire): null() cannot be in an iolength inquire
	list.

2019-09-07  Paul Thomas  <pault@gcc.gnu.org>

	Backport from mainline
	PR fortran/91589
	* primary.c (gfc_match_varspec): Return MATCH_NO on an apparent
	component ref, when the primary type is intrinsic.

2019-09-05  Harald Anlauf  <anlauf@gmx.de>

	Backport from mainline
	PR fortran/91496
	* gfortran.h: Extend struct gfc_iterator for loop annotations.
	* array.c (gfc_copy_iterator): Copy loop annotations by IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* decl.c (gfc_match_gcc_ivdep, gfc_match_gcc_vector)
	(gfc_match_gcc_novector): New matcher functions handling IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* match.h: Declare prototypes of matcher functions handling IVDEP,
	VECTOR, and NOVECTOR pragmas.
	* parse.c (decode_gcc_attribute, parse_do_block)
	(parse_executable): Decode IVDEP, VECTOR, and NOVECTOR pragmas;
	emit warning for unrecognized pragmas instead of error.
	* trans-stmt.c (gfc_trans_simple_do, gfc_trans_do): Add code to
	emit annotations for IVDEP, VECTOR, and NOVECTOR pragmas.
	* gfortran.texi: Document IVDEP, VECTOR, and NOVECTOR pragmas.

	PR fortran/91496
	* parse.c (parse_executable): Improve error messages for
	improperly placed pragmas not preceeding a loop.

2019-09-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91660
	* decl.c (gfc_match_decl_type_spec): Improve and restore error
	message for malformed types-spec.

2019-09-02  Steven G. Kargl  <kargl@gc.gnu.org>

	PR fortran/91552
	* array.c (walk_array_constructor): New function.
	(gfc_match_array_constructor): Use it.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91587
	* io.c (match_filepos): MATCH_ERROR should branch to a syntax error.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91565
	* simplify.c (gfc_simplify_reshape): Add additional checks of the
	ORDER dummy argument.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91564
	* check.c (gfc_check_kill_sub): Additional checks on status dummy
	argument.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91551
	* intrinsic.c (sort_actual): ALLOCATED has one argument. Check for
	no argument case.

2019-08-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91485
	module.c (gfc_match_use): User defined operator cannot conflict with
	a rename symbol.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91471
	* primary.c (gfc_variable_attr): Remove a gfc_internal_error(),
	which cannot be reached by conforming Fortran code, but seems to
	be reachable from nonconforming Fortran code.  Treat the AR_UNKNOWN
	case as a no-op.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78739
	* match.c (gfc_match_st_function):  When matching a statement function,
	need to check if the statement function name shadows the function
	name.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78719
	* decl.c (get_proc_name): Check for a CLASS entity when trying to
	add attributes to an entity that already has an explicit interface.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/82992
	* module.c (gfc_match_use):  When renaming a module entity, search
	current namespace for conflicting symbol.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87991
	* resolve.c (check_data_variable): data-stmt-object with pointer
	attribute requires a data-stmt-value with the target attribute.

2013-08-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/90563
	* frontend-passes.c (insert_index): Suppress errors while
	simplifying the resulting expression.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88072
	* misc.c (gfc_typename): Do not point to something that ought not to
	be pointed at.

2019-08-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/90561
	* trans.h (gfc_evaluate_now_function_scope): New function.
	* trans.c (gfc_evaluate_now_function_scope): New function.
	* trans-expr.c (gfc_trans_assignment): Use it.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89647
	resolve.c (resolve_typebound_procedure): Allow host associated
	procedure to be a binding target.  While here, wrap long line.

2019-08-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/87993
	* expr.c (gfc_simplify_expr): Simplifcation of an array with a kind
	type inquiry suffix yields a constant expression.

2019-08-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/91424
	* frontend-passes.c (do_subscript): Do not warn for an
	expression a second time.  Do not warn about a zero-trip loop.
	(doloop_warn): Also look at contained namespaces.

2019-08-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91359
	* trans-decl.c (gfc_generate_return): Ensure something is returned
	from a function.

2019-08-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/42546
	* check.c(gfc_check_allocated): Add comment pointing to ...
	* intrinsic.c(sort_actual): ... the checking done here.

2019-08-12  Release Manager

	* GCC 9.2.0 released.

2019-08-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	Backport from trunk
	PR fortran/87233
	* expr.c (check_restricted): Relax constraint C1279 which was
	removed from F2008 and above.

2019-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91296
	* interface.c (compare_actual_expr): When checking for aliasing, add
	a case to handle REF_INQUIRY (e.g., foo(x%re, x%im) do not alias).

2019-07-29  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Paul Thomas <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/90786
	PR fortran/90813
	* trans-expr.c (pointer_assignment_is_proc_pointer) Remove as
	it is very simple and only called from one place.
	(gfc_trans_pointer_assignment): Rename non_proc_pointer_assign
	as non_proc_ptr_assign. Assign to it directly, rather than call
	to above, deleted function and use gfc_expr_attr instead of
	only checking the reference chain.
	* dump-parse-tree.c (show_global_symbol): New function.
	(gfc_dump_global_symbols): New function.
	* gfortran.h (gfc_traverse_gsymbol): Add prototype.
	(gfc_dump_global_symbols): Likewise.
	* invoke.texi: Document -fdump-fortran-global.
	* lang.opt: Add -fdump-fortran-global.
	* parse.c (gfc_parse_file): Handle flag_dump_fortran_global.
	* symbol.c (gfc_traverse_gsymbol): New function.
	* trans-decl.c (sym_identifier): New function.
	(mangled_identifier): New function, doing most of the work
	of gfc_sym_mangled_identifier.
	(gfc_sym_mangled_identifier): Use mangled_identifier.  Add mangled
	identifier to global symbol table.
	(get_proc_pointer_decl): Use backend decl from global identifier
	if present.

2019-07-23  Thomas König  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR libfortran/91030
	* gfortran.texi (GFORTRAN_FORMATTED_BUFFER_SIZE): Document.
	(GFORTRAN_UNFORMATTED_BUFFER_SIZE): Likewise.

2019-07-07  Paul Thomas  <pault@gcc.gnu.org>

	Backport from mainline
	PR fortran/91077
	* trans-array.c (gfc_conv_scalarized_array_ref) Delete code
	that gave symbol backend decl for subref arrays and deferred
	length variables.

2019-06-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/90937
	* trans-types.c (get_formal_from_actual_arglist): Get symbol from
	current namespace so it will be freed later.  If symbol is of type
	character, get an empty character length.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/90290
	* match.c (gfc_match_stopcode): Check F2008 condition on stop code.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/90002
	* array.c (gfc_free_array_spec): When freeing an array-spec, avoid
	an ICE for assumed-shape coarrays.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/89344
	* expr.c (gfc_check_vardef_context): Check for INTENT(IN) variable
	in SELECT TYPE construct.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/87907
	* resolve.c (resolve_contained_fntype): Do not dereference a NULL
	pointer.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/86587
	* symbol.c (verify_bind_c_derived_type): Remove erroneous error
	checking for BIND(C) and PRIVATE attributes.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/77632
	* /decl.c (variable_decl): Mark a variable that is a target in pointer
	initialization when in PROGRAM, MODULE, or SUBMODULE scope with an
	implicit save.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/69499
	* match.c (gfc_match_select_type):  SELECT TYPE is an executable
	statement, and cannot appear in MODULE or SUBMODULE scope.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/69398
	* decl.c (attr_decl): Check for duplicate DIMENSION attribute for a
	CLASS entity.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/68544
	* resolve.c (is_dt_name): New function to compare symbol name against
	list of derived types.
	(resolve_actual_arglist): Use it to find wrong code.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	* arith.c (arith_power): Rework overflow of an integer to an integer
	exponent.

2019-06-18  Harald Anlauf  <anlauf@gmx.de>

	Backport from mainline
	2019-06-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/90577
	PR fortran/90578
	* trans-intrinsic.c (gfc_conv_intrinsic_shift): Properly
	distinguish logical/arithmetic shifts.
	* intrinsic.texi: Update documentation for SHIFTR/SHIFTL/SHIFTA
	(Fortran 2008) and LSHIFT/RSHIFT (GNU extensions).

2019-06-11  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Tomáš Trnka  <trnka@scm.com>

	Backport from trunk
	PR fortran/90744
	* trans-types.c (get_formal_from_actual_arglist): Unset typespec
	flags which make no sense for procedures without explicit
	interface.

2019-05-30  Marek Polacek  <polacek@redhat.com>

	* lang.opt (ftail-call-workaround): Fix a typo.

2019-05-30  Jakub Jelinek  <jakub@redhat.com>

	* lang.opt (ftail-call-workaround=): Fix a typo - lenghts to lengths.

2019-05-29  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/90329
	Backported from mainline
	2019-05-29  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/90329
	* lang.opt (fbroken-callers): Remove.
	(ftail-call-workaround, ftail-call-workaround=): New options.
	* gfortran.h (struct gfc_namespace): Add implicit_interface_calls.
	* interface.c (gfc_procedure_use): Set implicit_interface_calls
	for calls to implicit interface procedures.
	* trans-decl.c (create_function_arglist): Use flag_tail_call_workaround
	instead of flag_broken_callers.  If it is not 2, also require
	sym->ns->implicit_interface_calls.
	* invoke.texi (fbroken-callers): Remove documentation.
	(ftail-call-workaround, ftail-call-workaround=): Document.

	2019-05-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/90329
	* invoke.texi: Document -fbroken-callers.
	* lang.opt: Add -fbroken-callers.
	* trans-decl.c (create_function_arglist): Only set
	DECL_HIDDEN_STRING_LENGTH if flag_broken_callers is set.

	2019-05-16  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/90329
	* trans-decl.c (create_function_arglist): Set
	DECL_HIDDEN_STRING_LENGTH on hidden string length PARM_DECLs if
	len is constant.

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

	Backport from trunk
	PR libfortran/90038
	* intrinsic.texi (EXECUTE_COMMAND_LINE): Explain new
	wait=.false. implementation.

2019-05-19  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/90498
	* trans-stmt.c (trans_associate_var) Do not use the saved
	descriptor if the expression is a COMPONENT_REF.

2019-05-15  Janne Blomqvist  <jb@gcc.gnu.org>

	Backport from trunk
	* parse.c (gfc_parse_file): Remove translation string markers.

2019-05-12  Janne Blomqvist  <jb@gcc.gnu.org>

	Backport from trunk
	* dump-parse-tree.c (get_c_type_name): Use macros for complex type
	names.
	* parse.c (gfc_parse_file): Define complex macros, add CPP support
	when printing C prototypes.

2019-05-11  Paul Thomas  <pault@gcc.gnu.org>

	Backport from trunk
	PR fortran/90093
	* trans-decl.c (convert_CFI_desc): Test that the dummy is
	present before doing any of the conversions.

	PR fortran/90352
	* decl.c (gfc_verify_c_interop_param): Restore the error for
	charlen > 1 actual arguments passed to bind(C) procs.
	Clean up trailing white space.

	PR fortran/90355
	* trans-array.c (gfc_trans_create_temp_array): Set the 'span'
	field to the element length for all types.
	(gfc_conv_expr_descriptor): The force_no_tmp flag is used to
	prevent temporary creation, especially for substrings.
	* trans-decl.c (gfc_trans_deferred_vars): Rather than assert
	that the backend decl for the string length is non-null, use it
	as a condition before calling gfc_trans_vla_type_sizes.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): 'force_no_tmp'
	is set before calling gfc_conv_expr_descriptor.
	* trans.c (get_array_span): Move the code for extracting 'span'
	from gfc_build_array_ref to this function. This is specific to
	descriptors that are component and indirect references.
	* trans.h : Add the force_no_tmp flag bitfield to gfc_se.

2019-05-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	Backport from trunk
	PR fortran/90351
	PR fortran/90329
	* gfortran.dg/dump-parse-tree.c: Include version.h.
	(gfc_dump_external_c_prototypes): New function.
	(get_c_type_name): Select "char" as a name for a simple char.
	Adjust to handling external functions. Also handle complex.
	(write_decl): Add argument bind_c. Adjust for dumping of external
	procedures.
	(write_proc): Likewise.
	(write_interop_decl): Add bind_c argument to call of write_proc.
	* gfortran.h: Add prototype for gfc_dump_external_c_prototypes.
	* lang.opt: Add -fc-prototypes-external flag.
	* parse.c (gfc_parse_file): Move dumping of BIND(C) prototypes.
	Call gfc_dump_external_c_prototypes if option is set.
	* invoke.texi: Document -fc-prototypes-external.

2019-05-03  Release Manager

	* GCC 9.1.0 released.

2019-04-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90166
	* decl.c (in_module_or_interface): New function to check that the
	current state is in a module, submodule, or interface.
	(gfc_match_prefix): Use it.

2019-04-22  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/57284
	* resolve.c (find_array_spec): If this is a class expression
	and the symbol and component array specs are the same, this is
	not an error.
	*trans-intrinsic.c (gfc_conv_intrinsic_size): If a class symbol
	argument, has no namespace, it has come from the interface
	mapping and the _data component must be accessed directly.

2019-04-17  Thomas Schwinge  <thomas@codesourcery.com>

	PR fortran/90048
	* openmp.c (gfc_resolve_do_iterator): Handle sharing_clauses for
	OpenACC, too.
	(gfc_resolve_oacc_blocks): Populate sharing_clauses with private
	clauses.

2019-04-14  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89843
	* trans-decl.c (gfc_get_symbol_decl): Assumed shape and assumed
	rank dummies of bind C procs require deferred initialization.
	(convert_CFI_desc): New procedure to convert incoming CFI
	descriptors to gfc types and back again.
	(gfc_trans_deferred_vars): Call it.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Null the CFI
	descriptor pointer. Free the descriptor in all cases.

	PR fortran/89846
	* expr.c (is_CFI_desc): New function.
	(is_subref_array): Tidy up by referencing the symbol directly.
	* gfortran.h : Prototype for is_CFI_desc.
	* trans_array.c (get_CFI_desc): New function.
	(gfc_get_array_span, gfc_conv_scalarized_array_ref,
	gfc_conv_array_ref): Use it.
	* trans.c (get_array_span): Extract the span from descriptors
	that are indirect references.

	PR fortran/90022
	* trans-decl.c (gfc_get_symbol_decl): Make sure that the se
	expression is a pointer type before converting it to the symbol
	backend_decl type.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Eliminate
	temporary creation for intent(in).

2019-04-13  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/79842
	* module.c (gfc_use_module): use complete sentences.

2019-04-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR translation/89939
	* frontend-passes.c (B_ERROR): Delete macro.
	(C_ERROR): Delete macro.
	(B_ERROR_1): New macro.
	(C_ERROR_1): New macro.
	(C_ERROR_2): New macro.
	(inline_matmul_assign): Use new macros.
	(call_external_blas): Likewise.

2019-04-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87352
	* gfortran.h (gfc_component): Add finalized field.
	* class.c (finalize_component): If the component is already
	finalized, return early.  Set component->finalized on exit.

2019-04-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89981
	* resolve.c (resolve_global_procedure): If the global symbol is an
	ENTRY, also look up its name among the entries.

2019-04-04  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89904
	* check.c (gfc_check_transfer): Reject procedures as actual
	arguments for SOURCE and MOLD of TRANSFER intrinsic.

2019-04-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/68567
	* expr.c (gfc_reduce_init_expr): Add extra check to avoid
	dereferencing a null pointer.

2019-04-03  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/89375
	* expr.c (comp_pointer): Remove redundant condition.

2019-03-31  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/83515
	PR fortran/85797
	* trans-types.c (gfc_typenode_for_spec): Handle conversion for
	procedure pointers.
	* target-memory.c (gfc_element_size): Handle size determination
	for procedure pointers.

2019-03-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.c (debug):  Add for symbol_attribute *,
	symbol_attribute and gfc_ref * arguments.

2019-03-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89841
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Use the formal
	argument attributes rather than those of the actual argument.

	PR fortran/89842
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Call
	'set_dtype_for_unallocated' for any type of arrayspec.

2019-03-27  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/85537
	* expr.c (gfc_check_assign_symbol): Reject internal and dummy procedures
	in procedure pointer initialization.

2019-03-27  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88247
	* expr.c (is_subref_array): Permit substrings to be detected
	as subref arrays.
	* trans-array.c (get_array_ctor_var_strlen): Obtain the length
	of deferred length strings. Handle substrings with a NULL end
	expression.
	(trans_array_constructor): Remove an unnecessary blank line.
	(gfc_conv_scalarized_array_ref): Skip to label 'done' if 'decl'
	is a pointer array.
	(get_array_charlen): If the expression is an array, convert the
	first element of the constructor and use its string length. Get
	a new charlen if necessary.
	(gfc_conv_expr_descriptor): Call 'get_array_charlen' for array
	constructor expressions. If the ss_info string length is
	available, use that to set the span of character arrays.
	* trans-expr.c (gfc_get_expr_charlen): Handle substrings
	* trans-stmt.c (trans_associate_var): Set the pointer array
	flag for variable targets and constant array constructors. Take
	care not to reset the string length or the span in the case of
	expressions that are not converted as direct by reference.

2019-03-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* intrinsic.texi (MINLOC): Fix typo in BACK argument documentation.
	(MAXLOC): Likewise.

2019-03-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/78865
	* interface.c (compare_actual_formal): Change errors about
	missing or extra to gfc_error_now to make sure they are issued.
	Change "spec" to "specifier" in message.
	* resolve.c (resolve_global_procedure): Also check for mismatching
	interface with global symbols if the namespace has already been
	resolved.

2019-03-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR fortran/72741
	* openmp.c (gfc_match_oacc_routine): Set the level of parallelism
	for all variants.
	(gfc_resolve_oacc_routines): Call gfc_add_omp_declare_target.

	PR fortran/89773
	* gfortran.h (gfc_oacc_routine_name): Add loc member.
	(gfc_resolve_oacc_routines): Declare.
	* openmp.c (gfc_match_oacc_routine): Move some error checking
	into...
	(gfc_resolve_oacc_routines): ... this new function.
	* resolve.c (resolve_codes): Call it.

	PR fortran/72741
	* openmp.c (gfc_match_oacc_routine): Clarify.

	PR fortran/72741
	* module.c (verify_OACC_ROUTINE_LOP_NONE): New function.
	(enum ab_attribute): Add AB_OACC_ROUTINE_LOP_GANG,
	AB_OACC_ROUTINE_LOP_WORKER, AB_OACC_ROUTINE_LOP_VECTOR,
	AB_OACC_ROUTINE_LOP_SEQ.
	(attr_bits): Add these.
	(mio_symbol_attribute): Handle these.

2019-03-20  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/71861
	* symbol.c (check_conflict): ABSTRACT attribute conflicts with
	INTRINSIC attribute.

2019-03-18  Thomas Koenig  <tkoeng@gcc.gnu.org>

	PR fortran/68009
	* iresolve.c: Include trans.h.
	(gfc_resolve_fe_runtine_error): Set backend_decl on
	resolved_sym.

2019-03-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88008
	* gfortran.h (expr_t): Add EXPR_UNKNOWN.
	* expr.c (gfc_copy_expr): Add EXPR_UNKNOWN to switch statement.
	(gfc_simplify_expr): Likewise.
	* module.c (mio_expr): Likewise.
	* resovle.c (extract_compcall_passed_object): Issue error on
	unknown type.
	(check_typebound_baseobject): Issue error on wrong type.
	* trans-expr.c (gfc_apply_interface_mapping_to_expr): Add
	EXPR_UNKNOWN to switch statement.

2019-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/89724
	* scanner.c (load_line): Remove linenum and current_line static
	variables, add warned_tabs automatic variable.  Use current_file->line
	instead of current_line and warned_tabs boolean to avoid diagnosing
	tabs multiple times on the same line.

2019-03-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84394
	* symbol.c (gfc_add_subroutine): If we are encountering a
	subrtoutine within a BLOCK DATA and the name starts with an
	underscore, do not check.

2019-03-15  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/60091
	* expr.c (gfc_check_pointer_assign): Correct and improve error
	messages for invalid pointer assignments.

2019-03-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.texi: Document Q edit descriptor under
	"Extensions not implemented in GNU Fortran".

2019-03-13  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/87045
	* trans-expr.c (gfc_trans_pointer_assignment): Move check for same
	string length so that we do not get false errors for deferred
	length.

2019-03-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/89601
	* decl.c (gfc_match_formal_arglist): Reject empty type parameter lists.
	(gfc_match_derived_decl): Mark as PDT only if type parameter list was
	matched successfully.

2019-03-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/66695
	PR fortran/77746
	PR fortran/79485
	* gfortran.h (gfc_symbol): Add bind_c component.
	(gfc_get_gsymbol): Add argument bind_c.
	* decl.c (add_global_entry): Add bind_c argument to
	gfc_get_symbol.
	* parse.c (parse_block_data): Likewise.
	(parse_module): Likewise.
	(add_global_procedure): Likewise.
	(add_global_program): Likewise.
	* resolve.c (resolve_common_blocks): Likewise.
	(resolve_global_procedure): Likewise.
	(gfc_verify_binding_labels): Likewise.
	* symbol.c (gfc_get_gsymbol): Add argument bind_c. Set bind_c
	in gsym.
	* trans-decl.c (gfc_get_module_backend_decl): Add bind_c argument
	to gfc_get_symbol.
	(gfc_get_extern_function_decl): If the sym has a binding label
	and it cannot be found in the global symbol tabel, it is the wrong
	one and vice versa.

2019-03-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87673
	* match.c (gfc_match_type_spec): Remove call to
	gfc_resolve_expr for character length.

2019-03-12  Martin Liska  <mliska@suse.cz>

	* decl.c (add_init_expr_to_sym): Replace usage of 'can't'
	with 'cannot'.
	(variable_decl): Likewise.
	(cray_pointer_decl): Likewise.
	(match_binding_attributes): Likewise.
	* f95-lang.c (gfc_init): Likewise.
	* interface.c (gfc_check_typebound_override): Likewise.
	* intrinsic.c (make_generic): Likewise.
	* module.c (dump_module): Likewise.
	(gfc_use_module): Likewise.
	* primary.c (gfc_convert_to_structure_constructor): Likewise.
	* resolve.c (resolve_entries): Likewise.
	(check_generic_tbp_ambiguity): Likewise.
	(get_checked_tb_operator_target): Likewise.
	* scanner.c (load_file): Likewise.
	* trans-expr.c (gfc_conv_intrinsic_to_class): Likewise.

2019-03-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89363
	PR fortran/89364
	* trans-expr.c (set_dtype_for_unallocated): New function.
	(gfc_conv_gfc_desc_to_cfi_desc): Call it for allocatable and
	pointer arguments.
	(gfc_conv_procedure_call): Likewise. Also, set the ubound of
	the final dimension to -1 for assumed rank formal args that are
	associated with assumed size arrays.
	* trans-intrinsic.c (gfc_conv_intrinsic_bound): Return -1 for
	the final dimension of assumed rank entities that are argument
	associated with assumed size arrays.
	(gfc_conv_intrinsic_shape): Likewise return -1 for the final
	dimension of the shape intrinsic.

2019-03-11  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/89651
	* trans-openmp.c (gfc_omp_clause_default_ctor): Set TREE_NO_WARNING
	on decl if adding COND_EXPR for allocatable.
	(gfc_omp_clause_copy_ctor): Set TREE_NO_WARNING on dest.

2019-03-11  Martin Liska  <mliska@suse.cz>

	* decl.c (match_record_decl): Wrap an option name
	in a string format message and fix GNU coding style.
	(gfc_match_pointer): Likewise.
	* expr.c (find_array_section): Likewise.
	* intrinsic.c (gfc_is_intrinsic): Likewise.
	* options.c (gfc_post_options): Likewise.
	* primary.c (match_integer_constant): Likewise.
	* trans-common.c (translate_common): Likewise.

2019-03-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/66089
	* trans-array.c (gfc_scalar_elemental_arg_saved_as_reference):
	Return false if a scalar tempoary is needed.
	(gfc_walk_variable_expr): Fix up class refs.

2019-03-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87734
	* symbol.c (gfc_add_procedure): Only throw an error if the
	procedure has not been declared either PUBLIC or PRIVATE.

2019-03-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71544
	* trans-types.c (gfc_typenode_for_spec) Set ts->is_c_interop of
	C_PTR and C_FUNPTR.
	(create_fn_spec): Mark argument as escaping if ts->is_c_interop is set.

2019-03-09  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/84504
	* expr.c (gfc_check_assign_symbol): Deal with procedure pointers to
	pointer-valued functions.

2019-03-09  Thomas König  <tkoenig@gcc.gnu.org>

	PR fortran/71203
	* decl.c (add_init_expr_to_sym):  Add shape if init has none.  Add
	asserts that it has to be an EXPR_ARRAY in this case.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

	PR other/80058
	* arith.c (gfc_complex2complex): Avoid two spaces in the middle of
	diagnostics.
	* resolve.c (resolve_allocate_expr): Likewise.

2019-03-06  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71203
	* expr.c (simplify_const_ref): Avoid null pointer dereference.

2019-03-03  Harald Anlauf  <anlauf@gmx.de>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77583
	* symbol.c (check_conflict): Check for valid procedure name
	passed to error reporting routine.

2019-03-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/72714
	* resolve.c (resolve_allocate_expr): Add some tests for coarrays.

2019-03-02  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89516
	* check.c (gfc_calculate_transfer_sizes): Correct checks for cases
	where storage size of elements of MOLD is 0.

2019-02-28  Thomas Schwinge  <thomas@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/72741
	PR fortran/89433
	* openmp.c (gfc_match_oacc_routine): Handle repeated use of the
	Fortran OpenACC 'routine' directive.

	PR fortran/72741
	* gfortran.h (enum oacc_routine_lop): Add OACC_ROUTINE_LOP_ERROR.
	* openmp.c (gfc_oacc_routine_lop, gfc_match_oacc_routine): Use it.
	* trans-decl.c (add_attributes_to_decl): Likewise.

	PR fortran/72741
	PR fortran/89433
	* openmp.c (gfc_match_oacc_routine): Accept intrinsic symbols.

2019-02-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89492
	* check.c (gfc_calculate_transfer_sizes): Handle cases where
	storage size of elements of MOLD is 0.

2019-02-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89496
	* trans-types.c (get_formal_from_actual_arglist): If
	the actual arglist has no expression, the corresponding
	formal arglist is an alternate return.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/43210
	* trans-array.c (gfc_conv_array_initializer): Use RANGE_EXPR instead
	of duplicating the initializer possibly many times.

2019-02-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89174
	* trans-expr.c (gfc_find_and_cut_at_last_class_ref): Add is_mold
	to arguments. If we are dealing with a MOLD, call
	gfc_expr_to_initialize().
	* trans-stmt.c (gfc_trans_allocate): For MOLD, pass is_mold=true
	to gfc_find_and_cut_at_last_class_ref.
	* trans.h (gfc_find_and_cut_at_last_class_ref): Add optional
	argument is_mold with default false.

2019-02-24  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89266
	PR fortran/88326
	* target-memory.c (gfc_element_size): Return false if element size
	cannot be determined; element size is returned separately.
	(gfc_target_expr_size): Return false if expression size cannot be
	determined; expression size is returned separately.
	* target-memory.h: Adjust prototypes.
	* check.c (gfc_calculate_transfer_sizes): Adjust references to
	gfc_target_expr_size, gfc_element_size.
	* arith.c (hollerith2representation): Likewise.
	* class.c (find_intrinsic_vtab): Likewise.
	* simplify.c (gfc_simplify_sizeof): Likewise.

2019-02-23  Jerry DeLisle <jvdelisle@gcc.gnu.org>

	PR fortran/84387
	* trans-io.c (transfer_expr): Do not return if there are no
	components to the derived type or class.

2019-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88117
	* resolve.c (deferred_op_assign): Return if the lhs expression
	has the pointer attribute.
	* trans-expr.c (gfc_trans_assignment_1): Do not fix the string
	length if the lhs expression has the pointer attribute.

2019-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89385
	PR fortran/89366
	* decl.c (gfc_verify_c_interop_param): Restriction on string
	length being one is lifted for F2018.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): For scalar
	characters with intent in, make a temporary and copy the result
	of the expression evaluation into it.
	(gfc_conv_procedure_call): Set a flag for character formal args
	having a character length that is not unity. If the procedure
	is bind C, call gfc_conv_gfc_desc_to_cfi_desc in this case.
	Also, extend bind C calls to unconditionally convert both
	pointers and allocatable expressions.

2019-02-23  David Malcolm  <dmalcolm@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/88074
	* simplify.c (norm2_do_sqrt, gfc_simplify_norm2): Use
	mpfr_number_p && !mpfr_zero_p instead of mpfr_regular_p.
	(norm2_add_squared): Likewise.  Use mp_exp_t rather than mpfr_exp_t.

2019-02-22  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/83057
	* io.c (gfc_match_open): Fix logic in checks of OPEN statement
	when NEWUNIT= is specified.

2019-02-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89431
	* gfortran.texi: Fix documentation to match the implementation.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/72741
	* gfortran.h (oacc_routine_lop): New enum.
	(symbol_attribute): Use it.
	* openmp.c (gfc_oacc_routine_dims): Replace with...
	(gfc_oacc_routine_lop): ... this new function.
	(gfc_match_oacc_routine): Adjust.
	* trans-decl.c (add_attributes_to_decl): Likewise.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

	* openmp.c (gfc_match_oacc_declare): Revert earlier changes.

2019-02-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.c (debug): Implement for gfc_expr *,
	gfc_typespec *, gfc_typespec and gfc_symbol *.

2019-02-21  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/86119
	* class.c (gfc_get_len_component): Add argument k for kind.
	If the kind of the resulting expression is not equal to k,
	convert it.
	* gfortran.h (gfc_len_component): Adjust prototype.
	* simplify.c (gfc_simplify_len): Pass kind to
	gfc_get_len_component.

2019-02-20  Martin Liska  <mliska@suse.cz>

	* gfortran.texi: Change singular to plural.

2019-02-20  Martin Liska  <mliska@suse.cz>

	* gfortran.texi: Document Fortran header directive.

2019-02-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89384
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): If the dummy
	argument is contiguous and the actual argument may not be,
	use gfc_conv_subref_array_arg.

2019-02-19  Thomas Schwinge  <thomas@codesourcery.com>

	PR c/87924
	* openmp.c (gfc_match_omp_clauses): Add representation of wait clause
	without argument as 'wait (GOMP_ASYNC_NOVAL)'.

2019-02-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87689
	* trans-decl.c (gfc_get_extern_function_decl): Add argument
	actual_args and pass it through to gfc_get_function_type.
	* trans-expr.c (conv_function_val): Add argument actual_args
	and pass it on to gfc_get_extern_function_decl.
	(conv_procedure_call): Pass actual arguments to conv_function_val.
	* trans-types.c (get_formal_from_actual_arglist): New function.
	(gfc_get_function_type): Add argument actual_args.  Generate
	formal args from actual args if necessary.
	* trans-types.h (gfc_get_function_type): Add optional argument.
	* trans.h (gfc_get_extern_function_decl): Add optional argument.

2019-02-18  Martin Liska  <mliska@suse.cz>

	* decl.c (gfc_match_gcc_builtin): Add support for filtering
	of builtin directive based on multilib ABI name.

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88299
	* resolve.c (resolve_common_blocks,resolve_common_vars): Move
	check for obsolent COMMON feature in F2018 to better place.

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89077
	* decl.c (gfc_set_constant_character_len): Clear original string
	representation after padding has been performed to target length.

2019-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/88074
	* simplify.c (simplify_transformation_to_array): Run post_op
	immediately after processing corresponding row, rather than at the
	end.
	(norm2_scale): New variable.
	(add_squared): Rename to ...
	(norm2_add_squared): ... this.  Scale down operand and/or result
	if needed.
	(do_sqrt): Rename to ...
	(norm2_do_sqrt): ... this.  Handle the result == e case.  Scale up
	result and clear norm2_scale.
	(gfc_simplify_norm2): Clear norm2_scale.  Change add_squared to
	norm2_add_squared and &do_sqrt to norm2_do_sqrt.  Scale up result
	and clear norm2_scale again.

2019-02-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71066
	* trans-decl.c (generate_coarray_sym_init):  For an array
	constructor in a DATA statement of a coarray variable, set the
	rank to 1 to avoid confusion later on.  If the constructor
	contains only one value, use that for initiailizig.

2019-02-14  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/81552
	* gfortran.h (gfc_option_t): Make flag_init_integer_value a long.
	* options.c (gfc_handle_option): Use strtol instead of atoi.
	* invoke.texi: Document -finit-integer behavior in more detail.

2019-02-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88248
	* symbol.c: Move check for labeled DO statement from
	gfc_define_st_label to gfc_reference_st_label.

2019-02-14  Cesar Philippidis  <cesar@codesourcery.com>

	PR fortran/72715
	* openmp.c (resolve_oacc_nested_loops): Error on do concurrent
	loops.

2019-02-13  Martin Liska  <mliska@suse.cz>

	PR fortran/88649
	* resolve.c (resolve_operator): Initialize 't' right
	after function entry.  Skip switch (e->value.op.op)
	for -fdec operands that become function calls.

2019-02-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71723
	* expr.c (gfc_check_assign): Add argument is_init_expr.  If we are
	looking at an init expression, issue error if the target is not a
	TARGET and we are not looking at a procedure pointer.
	* gfortran.h (gfc_check_assign): Add optional argument
	is_init_expr.

2019-02-09  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89077
	* resolve.c (gfc_resolve_substring_charlen): Check substring
	length for constantness prior to general calculation of length.

2019-02-09  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89200
	* trans-array.c (gfc_trans_create_temp_array): Set the 'span'
	field for derived types.

2019-02-04  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89077
	* decl.c (add_init_expr_to_sym): Copy length of string initializer
	to declared symbol.

2019-02-04  Martin Liska  <mliska@suse.cz>

	PR fortran/89185
	* resolve.c (resolve_ref): Remove breakout variable as
	we need to prevent prev = &(*prev)->next to happen
	with *prev == NULL.

2019-02-04  Martin Liska  <mliska@suse.cz>

	PR fortran/88912
	* scanner.c (load_file): Report error for -fpre-include
	file and do not ICE.

2019-02-02  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/81344
	* invoke.texi: Document the behavior of repeated -ffpe-trap
	and -ffpe-summary.

2019-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88298
	* arith.c (gfc_int2int): Do not warn if src->do_not_warn is set.
	* gfortran.h (gfc_expr): Add flag do_not_warn.
	* intrinsic.c (gfc_convert_type_warn): Set expr->do_not_warn if
	no warning is desired.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88393
	* trans-expr.c (gfc_conv_procedure_call): For derived entities,
	passed in parentheses to class formals, invert the order of
	copying allocatable components to taking the _data of the
	class expression.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88980
	* trans-array.c (gfc_array_init_size): Add element_size to the
	arguments.
	(gfc_array_allocate): Remove the recalculation of the size of
	the element and use element_size from the call to the above.
	Unconditionally set the span field of the descriptor.

2019-02-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88685
	* expr.c (is_subref_array): Move the check for class pointer
	dummy arrays to after the reference check. If we haven't seen
	an array reference other than an element and a component is not
	class or derived, return false.

2019-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/83246
	PR fortran/89084
	* trans-decl.c (generate_local_decl): Add referenced FL_PARAMETERs
	if sym->ns->construct_entities rather than if
	sym->ns->parent->code->op == EXEC_BLOCK.

2019-01-31  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88669
	* resolve.c (resolve_component): If the reference is a BT_CLASS,
	copy the contiguous attribute from the reference and use the
	correct attributes.

2019-01-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/52564
	* io.c (match_io): Add check for comma after '*' without subsequent
	IO list.

2019-01-30  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/52884
	* invoke.texi: Document the promotion of double precision
	constants.

2019-01-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57048
	* interface.c (gfc_compare_types): If a derived type and an
	integer both have a derived type, and they are identical,
	this is a C binding type and compares equal.

2019-01-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/57553
	* expr.c (check_inquiry): Add list of inquiry functions allowed in
	constant expressions for F2008+.

2019-01-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85780
	* decl.c (gfc_match_subroutine): Check for conflict between BIND(C)
	and alternative return.

2019-01-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/88929
	* trans-array.c (gfc_conv_descriptor_elem_len): New function.
	* trans-array.h : Add prototype for above.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Take account of
	assumed rank arrays being flagged by rank = -1 in expressions.
	Intent in arrays need a pointer to a copy of the data to be
	assigned to the descriptor passed for conversion. This should
	then be freed, together with the CFI descriptor on return from
	the C call.

2019-01-22  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88579
	* trans-expr.c (gfc_conv_power_op): Handle cases of (2**e) ** integer
	and (- 2**e) ** integer.

2019-01-19  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/37835
	* resolve.c (resolve_types): Add !flag_automatic.
	* symbol.c (gfc_add_save): Silence warnings.

2019-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77960
	* io.c (match_io_element): input-item cannot be an external function.

2018-01-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/56789
	* trans-expr.c (gfc_conv_procedure_call): Call
	gfc_conv_subref_array_arg if the formal arg is contiguous
	and the actual arg may not be.

2019-01-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88871
	* resolve.c (resolve_ref): Fix logic for removal of
	reference.

2019-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/88902
	* trans-decl.c (gfc_get_symbol_decl): Don't add length to function
	or parent function if it has been added there already.

2019-01-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/43136
	* resolve.c (resolve_array_ref): Add equal_length argument; set it
	if the length of the substring equals that of the orignal
	variable.
	(resolve_ref): Remove the substring if it is equal in length to
	the original variable, unless it is an EXPR_SUBSTRING).

2019-01-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/81849
	* resolve.c (resolve_symbol): Host associated varaibles can appear
	in the specification statement of a RESULT array.

2019-01-15  Paul Thomas  <pault@gcc.gnu.org>

	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Deal with exprs
	that are indirect references; ie. dummy arguments.

2019-01-13  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR fortran/88803
	* gfortran.texi: Replace @xref with @ref and adjust the sentence.

2019-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57992
	* trans-array.c (gfc_conv_array_parameter): Do not pack/unpack
	functions with contiguous results.

2019-01-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/59345
	* trans-array.c (gfc_conv_array_parameter): Remove TODO.  Do not
	pack/unpack results of functions which return an explicit-shaped
	or allocatable array.

2019-01-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/61765
	* resolve.c (gfc_verify_binding_labels): Break if-elseif-elseif
	structure into independent if's with a return to simplify logic.
	Avoid a check for ENTRY name with bind(c).

2019-01-12  Paul Thomas  <pault@gcc.gnu.org>

	* gfortran.texi: Add description in sections on TS 29113 and
	further interoperability with C.
	* trans-array.c (gfc_conv_descriptor_attribute): New function.
	(gfc_get_dataptr_offset): Remove static function attribute.
	* trans-array.h: Add prototypes for above functions.
	* trans-decl.c: Add declarations for the library functions
	cfi_desc_to_gfc_desc and gfc_desc_to_cfi_desc.
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): New function.
	(gfc_conv_procedure_call): Call it for scalar and array actual
	arguments, when the formal arguments are bind_c with assumed
	shape or assumed rank.
	* trans.h: External declarations for gfor_fndecl_cfi_to_gfc
	and gfor_fndecl_gfc_to_cfi.

2019-01-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/35031
	* decl.c (gfc_match_entry): Check for F2018:C1546.  Fix nearby
	mis-indentation.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/85956
	PR lto/88733
	* trans-openmp.c: Include attribs.h.
	(gfc_walk_alloc_comps, gfc_omp_clause_linear_ctor): Handle
	VAR_DECL max bound with "omp dummy var" attribute like NULL or
	error_mark_node - recompute number of elts independently.

2019-01-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/59345
	* trans-array.c (gfc_conv_parameter_array): Temporary
	arrays generated for expressions do not need to be repacked.

2019-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/86322
	* decl.c (top_var_list): Set locus of expr.
	(gfc_match_data): Detect pointer on non-rightmost part-refs.

2019-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88376
	* resolve.c (is_illegal_recursion): Remove an assert().

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615
	* expr.c: Change "can not" to "cannot".

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615
	* class.c: Mechanically replace "can not" with "cannot".
	* decl.c: Likewise.
	* expr.c: Likewise.
	* gfc-internals.texi: Likewise.
	* intrinsic.texi: Likewise.
	* invoke.texi: Likewise.
	* io.c: Likewise.
	* match.c: Likewise.
	* parse.c: Likewise.
	* primary.c: Likewise.
	* resolve.c: Likewise.
	* symbol.c: Likewise.
	* trans-array.c: Likewise.
	* trans-decl.c: Likewise.
	* trans-intrinsic.c: Likewise.
	* trans-stmt.c: Likewise.

2019-01-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/68426
	* simplify.c (gfc_simplify_spread): Also simplify if the
	type of source is an EXPR_STRUCTURE.

2019-01-08  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/88047
	* class.c (gfc_find_vtab): For polymorphic typespecs, the components of
	the class container may not be available (in case of invalid code).

2019-01-08  Richard Biener  <rguenther@suse.de>

	PR fortran/88611
	* trans-expr.c (gfc_conv_initializer): For ISOCBINDING_NULL_*
	directly build the expected GENERIC tree.

2019-01-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf <anlauf@gmx.de>
	Tobias Burnus <burnus@gcc.gnu.org>

	PR fortran/45424
	* check.c (gfc_check_is_contiguous): New function.
	* expr.c (gfc_is_not_contiguous): New function.
	* gfortran.h (gfc_isym_id): Add GFC_ISYM_IS_CONTIGUOUS.
	Add prototype for gfc_is_not_contiguous.
	* intrinsic.c (do_ts29113_check): Add GFC_ISYM_IS_CONTIGUOUS.
	(add_function): Add is_contiguous.
	* intrinsic.h: Add prototypes for gfc_check_is_contiguous,
	gfc_simplify_is_contiguous and gfc_resolve_is_contiguous.
	* intrinsic.texi: Add IS_CONTIGUOUS.
	* iresolve.c (gfc_resolve_is_contiguous): New function.
	* simplify.c (gfc_simplify_is_contiguous): New function.
	* trans-decl.c (gfor_fncecl_is_contiguous0): New variable.
	(gfc_build_intrinsic_function_decl): Add it.
	* trans-intrinsic.c (gfc_conv_intrinsic_is_contiguous): New
	function.
	(gfc_conv_intrinsic_function): Handle GFC_ISYM_IS_CONTIGUOUS.

2019-01-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88658
	* gfortran.h: Add macro gfc_real_4_kind
	* simplify.c (simplify_min_max): Special case for the types of
	AMAX0, AMIN0, MAX1 and MIN1, which actually change the types of
	their arguments.

2019-01-05  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/88009
	* class.c (gfc_find_derived_vtab): Mark the _final component as
	artificial.
	(find_intrinsic_vtab): Ditto. Also add an extra check to avoid
	dereferencing a null pointer and adjust indentation.
	* resolve.c (resolve_fl_variable): Add extra check to avoid
	dereferencing a null pointer. Move variable declarations to local scope.
	(resolve_fl_procedure): Add extra check to avoid dereferencing a null
	pointer.
	* symbol.c (check_conflict): Suppress errors for artificial symbols.

2019-01-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	* parse.c (decode_statement): Suppress "Unclassifiable statement"
	error if previous error messages were emittes.

2019-01-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/82743
	* primary.c (gfc_convert_to_structure_constructor): If a character
	in a constructor is too long, add a  warning with
	-Wcharacter-truncation.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

	* gfortranspec.c (lang_specific_driver): Update copyright notice
	dates.
	* gfc-internals.texi: Bump @copying's copyright year.
	* gfortran.texi: Ditto.
	* intrinsic.texi: Ditto.
	* invoke.texi: Ditto.

Copyright (C) 2019 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.