From ab04048f4891089dc38d534cff10580e0f9f0088 Mon Sep 17 00:00:00 2001
From: davidxu <davidxu@FreeBSD.org>
Date: Sat, 31 Jul 2004 01:53:21 +0000
Subject: Macro optimize, this increases context switch speed about 2% on my
 athlon64 machine.

---
 lib/libpthread/arch/amd64/amd64/enter_uts.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/libpthread')

diff --git a/lib/libpthread/arch/amd64/amd64/enter_uts.S b/lib/libpthread/arch/amd64/amd64/enter_uts.S
index 7f9a88d..fb0df87 100644
--- a/lib/libpthread/arch/amd64/amd64/enter_uts.S
+++ b/lib/libpthread/arch/amd64/amd64/enter_uts.S
@@ -35,7 +35,7 @@ __FBSDID("$FreeBSD$");
 ENTRY(_amd64_enter_uts)
 	addq	%rcx, %rdx	/* get stack base */
 	andq	$~0xf, %rdx	/* align to 16 bytes */
-	subq	$8, %rdx	/* simulate "call" alignment */
 	movq	%rdx, %rsp	/* switch to UTS stack */
 	movq	%rdx, %rbp	/* set frame */
-	jmpq	*%rsi
+	callq	*%rsi
+	ret
-- 
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