From 33de0c6e92e36f3ea25122d1b304f8658c7b7852 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 29 Dec 2007 08:19:39 +0000
Subject: this xform is implemented.

llvm-svn: 45404
---
 llvm/lib/Target/X86/README.txt | 22 ----------------------
 1 file changed, 22 deletions(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/X86/README.txt b/llvm/lib/Target/X86/README.txt
index 46f31164d5d..08b5875c574 100644
--- a/llvm/lib/Target/X86/README.txt
+++ b/llvm/lib/Target/X86/README.txt
@@ -702,28 +702,6 @@ The add\sub pair is really unneeded here.
 
 //===---------------------------------------------------------------------===//
 
-We currently compile sign_extend_inreg into two shifts:
-
-long foo(long X) {
-  return (long)(signed char)X;
-}
-
-becomes:
-
-_foo:
-        movl 4(%esp), %eax
-        shll $24, %eax
-        sarl $24, %eax
-        ret
-
-This could be:
-
-_foo:
-        movsbl  4(%esp),%eax
-        ret
-
-//===---------------------------------------------------------------------===//
-
 Consider the expansion of:
 
 uint %test3(uint %X) {
-- 
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