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diff gcc/testsuite/gcc.dg/no-strict-overflow-5.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/no-strict-overflow-5.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
+
+/* Dual of strict-overflow-5.c.  */
+
+/* We can only unroll when using strict overflow semantics.  */
+
+int foo (int i)
+{
+  int index;
+  int r=0;
+ 
+  for (index = i; index <= i+4; index+=2) 
+    r++;
+ 
+  return r;
+}
+
+/* { dg-final { scan-tree-dump-times "r = 3" 0 "optimized" } } */