From 8e98de9979fa08dac650bc6ae884e809da2cfdaa Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Tue, 12 Apr 2011 23:23:14 +0000
Subject: Fix a bug where we were counting the alias sets as completely used
registers for fast allocation.
Fixes rdar://9207598
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129408 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/CodeGen/RegAllocFast.cpp | 2 --
1 file changed, 2 deletions(-)
(limited to 'lib')
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 7bb849e..30ecea0 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -442,8 +442,6 @@ unsigned RAFast::calcSpillCost(unsigned PhysReg) const {
unsigned Cost = 0;
for (const unsigned *AS = TRI->getAliasSet(PhysReg);
unsigned Alias = *AS; ++AS) {
- if (UsedInInstr.test(Alias))
- return spillImpossible;
switch (unsigned VirtReg = PhysRegState[Alias]) {
case regDisabled:
break;
--
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