Merge from trunk rev 192612.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/asan@192621 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 19 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/sh/pr54760-4.c b/gcc/testsuite/gcc.target/sh/pr54760-4.c
new file mode 100644
index 00000000000..3ee36a31389
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sh/pr54760-4.c
@@ -0,0 +1,19 @@
+/* Check that the GBR address optimization does not combine a gbr store
+   and its use when a function call is inbetween, when GBR is a call used
+   register, i.e. it is invalidated by function calls.  */
+/* { dg-do compile { target "sh*-*-*" } } */
+/* { dg-options "-O1 -fcall-used-gbr" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } }  */
+/* { dg-final { scan-assembler "stc\tgbr" } } */
+
+extern int test00 (void);
+int
+test01 (int x)
+{
+  /* We must see a stc gbr,rn before the function call, because
+     a function call could modify the gbr.  In this case the user requests
+     the old gbr value, before the function call.  */
+  int* p = (int*)__builtin_thread_pointer ();
+  p[5] = test00 ();
+  return 0;
+}