From 8a2f0a6cd10144a9304c41066653472b1b1cba4f Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 25 Feb 2010 03:04:36 +0000
Subject: [PATCH] Truncate from i64 to i32 is "free" on x86-32, because it
 involves just discarding one of the registers.

llvm-svn: 97100
---
 lib/Target/X86/X86ISelLowering.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 43d230f0746..eb0a995432e 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -7780,7 +7780,7 @@ bool X86TargetLowering::isTruncateFree(const Type *Ty1, const Type *Ty2) const {
   unsigned NumBits2 = Ty2->getPrimitiveSizeInBits();
   if (NumBits1 <= NumBits2)
     return false;
-  return Subtarget->is64Bit() || NumBits1 < 64;
+  return true;
 }
 
 bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const {
@@ -7790,7 +7790,7 @@ bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const {
   unsigned NumBits2 = VT2.getSizeInBits();
   if (NumBits1 <= NumBits2)
     return false;
-  return Subtarget->is64Bit() || NumBits1 < 64;
+  return true;
 }
 
 bool X86TargetLowering::isZExtFree(const Type *Ty1, const Type *Ty2) const {