http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60438
--- Comment #23 from linzj <manjian2006 at gmail dot com> ---
(In reply to Richard Henderson from comment #19)
> Created attachment 32311 [details]
> proposed patch
>
> Running full tests on this overnight, but it fixes the ICE.
I try to remove the following hunk from you patch,it compiles Jakub's testcase
right.Not run the full tests yet.
diff --git a/gcc/combine-stack-adj.c b/gcc/combine-stack-adj.c
index 69fd5ea..5abec30 100644
--- a/gcc/combine-stack-adj.c
+++ b/gcc/combine-stack-adj.c
@@ -454,6 +454,14 @@ combine_stack_adjustments_for_block (basic_block bb)
{
HOST_WIDE_INT this_adjust = INTVAL (XEXP (src, 1));
+ /* It's quite tricky to adjust the notes associated
+ with frame related insns. */
+ if (RTX_FRAME_RELATED_P (insn))
+ {
+ last2_sp_set = last_sp_set = NULL;
+ continue;
+ }
+
/* If we've not seen an adjustment previously, record
it now and continue. */
if (! last_sp_set)
