tree-optimization/79333 - fold stmts following SSA edges in VN

copysign is only available with c99_runtime, skip ssa-fre-94.c
otherwise.

2021-05-07  Christophe Lyon  <christophe.lyon@linaro.org>

	PR tree-optimization/79333
	gcc/testsuite/
	* gcc.dg/tree-ssa/ssa-fre-94.c: Require c99_runtime.

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-94.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-94.c
index 92eebf636c650ab32288b59bc5e2956b7787e72d..99c737562bbe94fd86b9303fe767de150d3e955c 100644 (file)
--- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-94.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-94.c
@@ -1,5 +1,6 @@
 /* PR tree-optimization/79333 */
 /* { dg-do compile } */
+/* { dg-require-effective-target c99_runtime } */
 /* { dg-options "-O -ffinite-math-only -fdump-tree-fre1" } */
 
 extern __inline __attribute__ ((__always_inline__,__gnu_inline__))