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[PATCH] Fix PR tree-optimization/49170
- From: "William J. Schmidt" <wschmidt at linux dot vnet dot ibm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 27 May 2011 07:06:09 -0500
- Subject: [PATCH] Fix PR tree-optimization/49170
Rainer has verified the following patch fixes the problem he observed in
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49170. OK to commit?
2011-05-27 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/49170
* tree-ssa-math-opts.c (execute_cse_sincos): Add checks for
sincos or cexp.
Index: tree-ssa-math-opts.c
===================================================================
--- tree-ssa-math-opts.c (revision 174277)
+++ tree-ssa-math-opts.c (working copy)
@@ -1093,6 +1093,10 @@ execute_cse_sincos (void)
CASE_FLT_FN (BUILT_IN_COS):
CASE_FLT_FN (BUILT_IN_SIN):
CASE_FLT_FN (BUILT_IN_CEXPI):
+ /* Make sure we have either sincos or cexp. */
+ if (!TARGET_HAS_SINCOS && !TARGET_C99_FUNCTIONS)
+ break;
+
arg = gimple_call_arg (stmt, 0);
if (TREE_CODE (arg) == SSA_NAME)
cfg_changed |= execute_cse_sincos_1 (arg);