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authorEvan Cheng <evan.cheng@apple.com>2007-03-19 18:08:26 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-03-19 18:08:26 +0000
commit757072d954937514585b5c213f01f851d31826a1 (patch)
tree470efbb2df831036647750f03b956b5da79a2578
parentd8197fd9d71786b48b2b0d735a37a43d5ed7984d (diff)
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Remove -reduce-joining-phys-regs options. Make it on by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35165 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/CodeGen/LiveIntervalAnalysis.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 4a6a561fe3..36db38e1db 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -42,7 +42,6 @@ STATISTIC(numJoins , "Number of interval joins performed");
STATISTIC(numPeep , "Number of identity moves eliminated after coalescing");
STATISTIC(numFolded , "Number of loads/stores folded into instructions");
STATISTIC(numAborts , "Number of times interval joining aborted");
-static cl::opt<bool> ReduceJoinPhys("reduce-joining-phy-regs", cl::Hidden);
namespace {
RegisterPass<LiveIntervals> X("liveintervals", "Live Interval Analysis");
@@ -937,8 +936,7 @@ bool LiveIntervals::JoinCopy(MachineInstr *CopyMI,
// virtual register. Once the coalescing is done, it cannot be broken and
// these are not spillable! If the destination interval uses are far away,
// think twice about coalescing them!
- if (ReduceJoinPhys && !mopd->isDead() &&
- MRegisterInfo::isPhysicalRegister(repSrcReg)) {
+ if (!mopd->isDead() && MRegisterInfo::isPhysicalRegister(repSrcReg)) {
// Small function. No need to worry!
unsigned Threshold = allocatableRegs_.count() * 2;
if (r2iMap_.size() <= Threshold)