From: Christoph Mallon <christoph.mallon@gmx.de>
Date: Wed, 8 Oct 2008 08:54:21 +0000 (+0000)
Subject: Simplify emit_CopyB_prolog() and remove an unnecessary bit filter before calling it.
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;ds=sidebyside;h=b644c35fa89324522c70d601a2582a22d66098fb;p=libfirm

Simplify emit_CopyB_prolog() and remove an unnecessary bit filter before calling it.

[r22598]
---

diff --git a/ir/be/ia32/ia32_emitter.c b/ir/be/ia32/ia32_emitter.c
index c4eabd86a..af53e41e3 100644
--- a/ir/be/ia32/ia32_emitter.c
+++ b/ir/be/ia32/ia32_emitter.c
@@ -1373,21 +1373,13 @@ static void emit_CopyB_prolog(unsigned size)
 	be_emit_cstring("\tcld");
 	be_emit_finish_line_gas(NULL);
 
-	switch (size) {
-	case 1:
-		be_emit_cstring("\tmovsb");
-		be_emit_finish_line_gas(NULL);
-		break;
-	case 2:
-		be_emit_cstring("\tmovsw");
-		be_emit_finish_line_gas(NULL);
-		break;
-	case 3:
+	if (size & 1) {
 		be_emit_cstring("\tmovsb");
 		be_emit_finish_line_gas(NULL);
+	}
+	if (size & 2) {
 		be_emit_cstring("\tmovsw");
 		be_emit_finish_line_gas(NULL);
-		break;
 	}
 }
 
@@ -1411,7 +1403,7 @@ static void emit_ia32_CopyB_i(const ir_node *node)
 {
 	unsigned size = get_ia32_copyb_size(node);
 
-	emit_CopyB_prolog(size & 0x3);
+	emit_CopyB_prolog(size);
 
 	size >>= 2;
 	while (size--) {