1 files changed, 6 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/ipa-pure-const.c b/gcc-4.9/gcc/ipa-pure-const.c
index 7d3588099..948665e4a 100644
--- a/gcc-4.9/gcc/ipa-pure-const.c
+++ b/gcc-4.9/gcc/ipa-pure-const.c
@@ -1504,6 +1504,12 @@ static bool
 gate_pure_const (void)
 {
   return (flag_ipa_pure_const
+           /* Due to the traverse order difference between profile-use
+          and profile-gen, pure/const analysis result can be different
+          resulting in differnt CFG in the caller (e.g, different VOPS,
+          --> different MEMOP PHI --> different CFG cleanups) function,
+          thus causing profile mismatch problem.  */
+           && (!flag_dyn_ipa || cgraph_pre_profiling_inlining_done)
 	  /* Don't bother doing anything if the program has errors.  */
 	  && !seen_error ());
 }