Re: [PATCH, x86] Use vector moves in memmove expanding

[Michael V. Zolotukhin]

Hi HJ,
You were right, and the change from epilogue_size_needed to size_needed was the
rootcause of the bug.
Here is the obvious fix for that, regtested and bootstrapped on i386/x86_64.

Is it OK for trunk?

Changelog:
2013-09-09  Michael Zolotukhin  <michael.v.zolotuk...@gmail.com>

        * config/i386/i386.c (ix86_expand_movmem): Fix epilogue generation.

---
Thanks, Michael

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index e2fa71a..1f07e6f 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -23329,7 +23329,7 @@ ix86_expand_movmem (rtx dst, rtx src, rtx count_exp, 
rtx align_exp,
 
   if (count_exp != const0_rtx && epilogue_size_needed > 1)
     expand_movmem_epilogue (dst, src, destreg, srcreg, count_exp,
-                           size_needed);
+                           epilogue_size_needed);
   if (jump_around_label)
     emit_label (jump_around_label);
   return true;