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authorOwen Anderson <resistor@mac.com>2008-10-07 20:22:28 +0000
committerOwen Anderson <resistor@mac.com>2008-10-07 20:22:28 +0000
commit95dad830bbf975cb4cea4e1ac685781a18676a7a (patch)
treebd2cf50595adb1345d767124b9f529511c09147c /lib/CodeGen/RegAllocLinearScan.cpp
parent3341262de27dad5e1f983fe072a749356a8f3c78 (diff)
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Add an option to enable StrongPHIElimination, for ease of testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57259 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
-rw-r--r--lib/CodeGen/RegAllocLinearScan.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 7291e12..31e47f9 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -26,6 +26,7 @@
#include "llvm/CodeGen/RegisterCoalescer.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/ADT/EquivalenceClasses.h"
#include "llvm/ADT/Statistic.h"
@@ -107,6 +108,8 @@ namespace {
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<LiveIntervals>();
+ if (StrongPHIElim)
+ AU.addRequiredID(StrongPHIEliminationID);
// Make sure PassManager knows which analyses to make available
// to coalescing and which analyses coalescing invalidates.
AU.addRequiredTransitive<RegisterCoalescer>();