gcc/

	* config/mips/mips.c (mips_frame_barrier): New function.
	(mips_expand_prologue): Call it after allocating stack space.
	(mips_deallocate_stack): New function.
	(mips_expand_epilogue): Call mips_frame_barrier and
	mips_deallocate_stack.

gcc/testsuite/
	* gcc.target/mips/stack-1.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179432 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 11 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/mips/stack-1.c b/gcc/testsuite/gcc.target/mips/stack-1.c
new file mode 100644
index 00000000000..3d495453dd7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/stack-1.c
@@ -0,0 +1,11 @@
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler "addiu\t(\\\$sp,)?\\\$sp,\[1-9\]" } } */
+/* { dg-final { scan-assembler "\tlw\t" } } */
+/* { dg-final { scan-assembler-not "addiu\t(\\\$sp,)?\\\$sp,\[1-9\].*\tlw\t" } } */
+
+int foo (int y)
+{
+  volatile int a = y;
+  volatile int *volatile b = &a;
+  return *b;
+}