[PATCH] Fix PR64240

[Yangfei (Felix)]

Hi,

  This patch fixes an obvious typo which may affect the DDG creation of SMS and 
make this optimization produce buggy code. 
  Bootstrapped on x86_64-suse-linux.  Also passed check-gcc test for 
aarch64-linux-gnu. 
  OK for the trunk? 


Index: gcc/ddg.c
===================================================================
--- gcc/ddg.c   (revision 218582)
+++ gcc/ddg.c   (working copy)
@@ -77,7 +77,7 @@ mark_mem_use (rtx *x, void *)
 {
   subrtx_iterator::array_type array;
   FOR_EACH_SUBRTX (iter, array, *x, NONCONST)
-    if (MEM_P (*x))
+    if (MEM_P (*iter))
       {
        mem_ref_p = true;
        break;
Index: gcc/ChangeLog
===================================================================
--- gcc/ChangeLog       (revision 218582)
+++ gcc/ChangeLog       (working copy)
@@ -1,3 +1,8 @@
+2014-12-16  Felix Yang  <felix.y...@huawei.com>
+
+       PR rtl-optimization/64240
+       * ddg.c (mark_mem_use): Check *iter instead of *x.
+
 2014-12-10  Felix Yang  <felix.y...@huawei.com>
 
        * config/aarch64/aarch64-protos.h (aarch64_function_profiler): Remove

pr64240.diff
Description: pr64240.diff