re PR tree-optimization/80281 (Wrong constant folding)

2017-04-06  Richard Biener  <rguenther@suse.de>

	PR middle-end/80281
	* gcc.dg/tree-ssa/pr40921.c: Add -fp-contract=off.

From-SVN: r246726

gcc/testsuite/ChangeLog

+2017-04-06  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/80281
+	* gcc.dg/tree-ssa/pr40921.c: Add -fp-contract=off.
+
 2017-04-05  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR rtl-optimization/70703

gcc/testsuite/gcc.dg/tree-ssa/pr40921.c

-
 /* { dg-do compile } */
-/* { dg-options "-O2  -fdump-tree-optimized -ffast-math" } */
+/* { dg-options "-O2  -fdump-tree-optimized -ffast-math -ffp-contract=off" } */
 
 unsigned int foo (unsigned int x, unsigned int y, unsigned int z)
 {
-      return x + (-y * z * z);
+  return x + (-y * z * z);
 }
 
 float bar (float x, float y, float z)
 {
-      return x + (-y * z * z);
+  return x + (-y * z * z);
 }
 
 float bar2 (float x, float y, float z)
 {
-      return x + (-y * z * z * 5.0f);
+  return x + (-y * z * z * 5.0f);
 }
 
 float bar3 (float x, float y, float z)
 {
-      return x + (-y * x * -z);
+  return x + (-y * x * -z);
 }
 
-
 /* { dg-final { scan-tree-dump-times "_* = -y_" 0 "optimized" } } */