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Second batch of passes using LLVMContext.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74753 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2009-07-03 00:54:20 +00:00
parent 2889ccea62
commit 1ff50b380e
5 changed files with 46 additions and 37 deletions
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17
lib/Transforms/Scalar/LoopUnswitch.cpp
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@ -32,6 +32,7 @@
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/LLVMContext.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/LoopPass.h"
@ -230,7 +231,7 @@ bool LoopUnswitch::processCurrentLoop() {
Value *LoopCond = FindLIVLoopCondition(BI->getCondition(),
currentLoop, Changed);
if (LoopCond && UnswitchIfProfitable(LoopCond,
ConstantInt::getTrue())) {
Context->getConstantIntTrue())) {
++NumBranches;
return true;
}
@ -260,7 +261,7 @@ bool LoopUnswitch::processCurrentLoop() {
Value *LoopCond = FindLIVLoopCondition(SI->getCondition(),
currentLoop, Changed);
if (LoopCond && UnswitchIfProfitable(LoopCond,
ConstantInt::getTrue())) {
Context->getConstantIntTrue())) {
++NumSelects;
return true;
}
@ -348,10 +349,10 @@ bool LoopUnswitch::IsTrivialUnswitchCondition(Value *Cond, Constant **Val,
// this.
if ((LoopExitBB = isTrivialLoopExitBlock(currentLoop,
BI->getSuccessor(0)))) {
if (Val) *Val = ConstantInt::getTrue();
if (Val) *Val = Context->getConstantIntTrue();
} else if ((LoopExitBB = isTrivialLoopExitBlock(currentLoop,
BI->getSuccessor(1)))) {
if (Val) *Val = ConstantInt::getFalse();
if (Val) *Val = Context->getConstantIntFalse();
}
} else if (SwitchInst *SI = dyn_cast<SwitchInst>(HeaderTerm)) {
// If this isn't a switch on Cond, we can't handle it.
@ -507,7 +508,7 @@ void LoopUnswitch::EmitPreheaderBranchOnCondition(Value *LIC, Constant *Val,
Value *BranchVal = LIC;
if (!isa<ConstantInt>(Val) || Val->getType() != Type::Int1Ty)
BranchVal = new ICmpInst(ICmpInst::ICMP_EQ, LIC, Val, "tmp", InsertPt);
else if (Val != ConstantInt::getTrue())
else if (Val != Context->getConstantIntTrue())
// We want to enter the new loop when the condition is true.
std::swap(TrueDest, FalseDest);
@ -815,7 +816,7 @@ void LoopUnswitch::RemoveBlockIfDead(BasicBlock *BB,
// Anything that uses the instructions in this basic block should have their
// uses replaced with undefs.
if (!I->use_empty())
I->replaceAllUsesWith(UndefValue::get(I->getType()));
I->replaceAllUsesWith(Context->getUndef(I->getType()));
}
// If this is the edge to the header block for a loop, remove the loop and
@ -904,7 +905,7 @@ void LoopUnswitch::RewriteLoopBodyWithConditionConstant(Loop *L, Value *LIC,
if (IsEqual)
Replacement = Val;
else
Replacement = ConstantInt::get(Type::Int1Ty,
Replacement = Context->getConstantInt(Type::Int1Ty,
!cast<ConstantInt>(Val)->getZExtValue());
for (unsigned i = 0, e = Users.size(); i != e; ++i)
@ -944,7 +945,7 @@ void LoopUnswitch::RewriteLoopBodyWithConditionConstant(Loop *L, Value *LIC,
Instruction* OldTerm = Old->getTerminator();
BranchInst::Create(Split, SISucc,
ConstantInt::getTrue(), OldTerm);
Context->getConstantIntTrue(), OldTerm);
LPM->deleteSimpleAnalysisValue(Old->getTerminator(), L);
Old->getTerminator()->eraseFromParent();