From 15a0456d0b7618554ed3d49287e77b6d43a2812a Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Thu, 5 Jun 2014 17:24:30 -0700
Subject: Remove unnecessary instructions from x86/x86_64 syscalls.

__set_errno returns -1 exactly so that callers don't need to bother.
The other architectures were already taking advantage of this, but
no one had ever fixed x86 and x86_64.

Change-Id: Ie131494be664f6c4a1bbf8c61bbbed58eac56122
---
 libc/arch-x86/syscalls/readv.S | 1 -
 1 file changed, 1 deletion(-)

(limited to 'libc/arch-x86/syscalls/readv.S')

diff --git a/libc/arch-x86/syscalls/readv.S b/libc/arch-x86/syscalls/readv.S
index 8cb01a0..8b5ff41 100644
--- a/libc/arch-x86/syscalls/readv.S
+++ b/libc/arch-x86/syscalls/readv.S
@@ -23,7 +23,6 @@ ENTRY(readv)
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
-- 
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