1 files changed, 77 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/ipa/pr105160.c b/gcc/testsuite/gcc.dg/ipa/pr105160.c
new file mode 100644
index 00000000000..ea80545b102
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ipa/pr105160.c
@@ -0,0 +1,77 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-ipa-modref" } */
+#define sysreg_read(regname)		\
+({					\
+	unsigned long __sr_val;		\
+	asm volatile("");		\
+					\
+	__sr_val;			\
+})
+
+#define sysreg_write(regname, __sw_val)	\
+do {					\
+	asm volatile("");			\
+} while (0)
+
+#define isb()				\
+do {					\
+	asm volatile(			\
+	"isb"				\
+	:				\
+	:				\
+	: "memory");			\
+} while (0)
+
+static unsigned long sctlr_read(void)
+{
+	return sysreg_read(sctlr_el1);
+}
+
+static void sctlr_write(unsigned long val)
+{
+	sysreg_write(sctlr_el1, val);
+}
+
+static void sctlr_rmw(void)
+{
+	unsigned long val;
+
+	val = sctlr_read();
+	val |= 1UL << 7;
+	sctlr_write(val);
+}
+
+void sctlr_read_multiple(void)
+{
+	sctlr_read();
+	sctlr_read();
+	sctlr_read();
+	sctlr_read();
+}
+
+void sctlr_write_multiple(void)
+{
+	sctlr_write(0);
+	sctlr_write(0);
+	sctlr_write(0);
+	sctlr_write(0);
+	sctlr_write(0);
+}
+
+void sctlr_rmw_multiple(void)
+{
+	sctlr_rmw();
+	sctlr_rmw();
+	sctlr_rmw();
+	sctlr_rmw();
+}
+
+void function(void)
+{
+	sctlr_read_multiple();
+	sctlr_write_multiple();
+	sctlr_rmw_multiple();
+
+	isb();
+}
+/* { dg-final { scan-ipa-dump-not "Function found to be const" "modref"  } } */