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Testcase for fixed PR65258

Message ID alpine.LSU.2.20.1712141607190.12252@zhemvz.fhfr.qr
State New
Headers show
Series Testcase for fixed PR65258 | expand

Commit Message

Richard Biener Dec. 14, 2017, 3:07 p.m. UTC 
Committed.

Richard.

2017-12-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/65258
	* gcc.dg/Warray-bounds-23.c: New testcase.
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Patch

Index: gcc/testsuite/gcc.dg/Warray-bounds-23.c
===================================================================
--- gcc/testsuite/gcc.dg/Warray-bounds-23.c	(nonexistent)
+++ gcc/testsuite/gcc.dg/Warray-bounds-23.c	(working copy)
@@ -0,0 +1,15 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O2 -Warray-bounds" } */
+
+int main()
+{
+  unsigned i, j, a[10] = {0};
+
+  for (j = 23; j < 25; j++){
+      for (i = j / 8; i --> 0;) a[i] = 0; /* { dg-bogus "array bounds" } */
+      for (i =     1; i --> 0;) __builtin_printf("%u", a[i]);
+  }
+
+  return 0;
+}
+