From: Tom Stellard <thomas.stellard@amd.com>
Date: Mon, 31 Mar 2014 14:01:52 +0000 (+0000)
Subject: R600/SI: Return the correct index for VGPRs in getHWRegIndex()
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1eaaa949f654df3b5920ae3a5d2572579785008b;p=oota-llvm.git

R600/SI: Return the correct index for VGPRs in getHWRegIndex()

The register index is stored in the low 8-bits of the encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205186 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/R600/SIRegisterInfo.cpp b/lib/Target/R600/SIRegisterInfo.cpp
index a784fa42647..6cef1954935 100644
--- a/lib/Target/R600/SIRegisterInfo.cpp
+++ b/lib/Target/R600/SIRegisterInfo.cpp
@@ -56,7 +56,7 @@ const TargetRegisterClass * SIRegisterInfo::getCFGStructurizerRegClass(
 }
 
 unsigned SIRegisterInfo::getHWRegIndex(unsigned Reg) const {
-  return getEncodingValue(Reg);
+  return getEncodingValue(Reg) & 0xff;
 }
 
 const TargetRegisterClass *SIRegisterInfo::getPhysRegClass(unsigned Reg) const {