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PATCH: PR target/64114: ICE: in lra_create_live_ranges, at lra-lives.c:1330 with -O -mstringop-strategy=vector_loop -mno-push-args

Message ID 20141129155916.GA8183@gmail.com
State New
Headers show

Commit Message

H.J. Lu Nov. 29, 2014, 3:59 p.m. UTC 
Hi,

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64114

was fixed by

http://gcc.gnu.org/viewcvs/gcc?view=revision&revision=217947

I checked in this testcase to close it.

H.J.
---
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Patch

Index: gcc/testsuite/ChangeLog
===================================================================
--- gcc/testsuite/ChangeLog	(revision 218181)
+++ gcc/testsuite/ChangeLog	(working copy)
@@ -1,3 +1,8 @@ 
+2014-11-29  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/64114
+	* gcc.target/i386/pr64114.c: New test.
+
 2014-11-29  Joseph Myers  <joseph@codesourcery.com>
 
 	PR preprocessor/41698
Index: gcc/testsuite/gcc.target/i386/pr64114.c
===================================================================
--- gcc/testsuite/gcc.target/i386/pr64114.c	(revision 0)
+++ gcc/testsuite/gcc.target/i386/pr64114.c	(working copy)
@@ -0,0 +1,24 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O -mstringop-strategy=vector_loop -mno-push-args" } */
+
+extern float *ptrs[];
+extern int incs[];
+
+struct big
+{
+  int i[0x10000];
+};
+
+extern void bar (struct big b);
+
+struct big
+foo (int n)
+{
+  struct big b;
+
+  int inc14 = incs[15], inc16 = n, inc17 = n, inc19 = incs[3];
+  float *ptr0 = ptrs[1], *ptr14 = ptrs[14], *ptr16 = ptrs[16];
+  while (n--)
+    *ptr0 += *ptr14 += inc14 += *ptr16 += inc16 += inc17 += inc19, bar (b);
+  return b;
+}