From: Christoph Mallon <christoph.mallon@gmx.de>
Date: Wed, 8 Oct 2008 09:01:46 +0000 (+0000)
Subject: Do not emit cld in the CopyB prologue.  The ABI mandates that DF is cleared, so do... 
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=fa58db3dfe73586f59ba99952806e418849c9740;p=libfirm

Do not emit cld in the CopyB prologue.  The ABI mandates that DF is cleared, so do not bother performing this NOP.

[r22599]
---

diff --git a/ir/be/ia32/ia32_emitter.c b/ir/be/ia32/ia32_emitter.c
index af53e41e3..9cbde330e 100644
--- a/ir/be/ia32/ia32_emitter.c
+++ b/ir/be/ia32/ia32_emitter.c
@@ -1370,9 +1370,6 @@ static void emit_ia32_Asm(const ir_node *node)
  */
 static void emit_CopyB_prolog(unsigned size)
 {
-	be_emit_cstring("\tcld");
-	be_emit_finish_line_gas(NULL);
-
 	if (size & 1) {
 		be_emit_cstring("\tmovsb");
 		be_emit_finish_line_gas(NULL);