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Testcase for PR79409

Message ID alpine.LSU.2.20.1702081034410.19968@zhemvz.fhfr.qr
State New
Headers show

Commit Message

Richard Biener Feb. 8, 2017, 9:35 a.m. UTC 
Tested on x86_64-unknown-linux-gnu, applied.

Richard.

2017-02-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71824
	PR tree-optimization/79409
	* gcc.dg/graphite/pr71824-3.c: New testcase.
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Patch

Index: gcc/testsuite/gcc.dg/graphite/pr71824-3.c
===================================================================
--- gcc/testsuite/gcc.dg/graphite/pr71824-3.c	(nonexistent)
+++ gcc/testsuite/gcc.dg/graphite/pr71824-3.c	(working copy)
@@ -0,0 +1,19 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-loop-distribution -floop-nest-optimize" } */
+
+struct
+{
+  int bz;
+} od, ka[2];
+
+int fw;
+
+void
+pc (void)
+{
+  for (od.bz = 0; od.bz < 2; ++od.bz)
+    {
+      ++fw;
+      ka[0] = ka[1];
+    }
+}