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Reformat a loop for basic hygeine. Self review. 

llvm-svn: 199788
This commit is contained in:
Andrew Trick 2014-01-22 03:38:55 +00:00
parent a6ae1209df
commit 4675351afd
1 changed files with 5 additions and 5 deletions
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10
llvm/lib/CodeGen/MachineScheduler.cpp
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@ -2527,17 +2527,17 @@ void GenericScheduler::initPolicy(MachineBasicBlock::iterator Begin,
MachineBasicBlock::iterator End,
unsigned NumRegionInstrs) {
const TargetMachine &TM = Context->MF->getTarget();
const TargetLowering *TLI = TM.getTargetLowering();
// Avoid setting up the register pressure tracker for small regions to save
// compile time. As a rough heuristic, only track pressure when the number of
// schedulable instructions exceeds half the integer register file.
RegionPolicy.ShouldTrackPressure = true;
unsigned LegalIntVT = MVT::i32;
for (; LegalIntVT > (unsigned)MVT::i1; --LegalIntVT) {
if (TM.getTargetLowering()->isTypeLegal((MVT::SimpleValueType)LegalIntVT)) {
for (unsigned VT = MVT::i32; VT > (unsigned)MVT::i1; --VT) {
MVT::SimpleValueType LegalIntVT = (MVT::SimpleValueType)VT;
if (TLI->isTypeLegal(LegalIntVT)) {
unsigned NIntRegs = Context->RegClassInfo->getNumAllocatableRegs(
TM.getTargetLowering()->getRegClassFor(
(MVT::SimpleValueType)LegalIntVT));
TLI->getRegClassFor(LegalIntVT));
RegionPolicy.ShouldTrackPressure = NumRegionInstrs > (NIntRegs / 2);
}
}