diff options
author | Owen Anderson <resistor@mac.com> | 2009-07-03 00:54:20 +0000 |
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committer | Owen Anderson <resistor@mac.com> | 2009-07-03 00:54:20 +0000 |
commit | 1ff50b380e6f5549f5ddd9e6c390dcb00332e3e9 (patch) | |
tree | 5d8a911958f0356c070f691d755b553750ed5486 /lib/Transforms/Scalar/JumpThreading.cpp | |
parent | 2889ccea625942348ea74f51ae2f67d084f44850 (diff) |
Second batch of passes using LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74753 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/JumpThreading.cpp')
-rw-r--r-- | lib/Transforms/Scalar/JumpThreading.cpp | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp index 611d24b133..dee7bfba21 100644 --- a/lib/Transforms/Scalar/JumpThreading.cpp +++ b/lib/Transforms/Scalar/JumpThreading.cpp @@ -14,6 +14,7 @@ #define DEBUG_TYPE "jump-threading" #include "llvm/Transforms/Scalar.h" #include "llvm/IntrinsicInst.h" +#include "llvm/LLVMContext.h" #include "llvm/Pass.h" #include "llvm/Analysis/ConstantFolding.h" #include "llvm/Transforms/Utils/BasicBlockUtils.h" @@ -434,7 +435,7 @@ bool JumpThreading::ProcessBranchOnDuplicateCond(BasicBlock *PredBB, << "' folding condition to '" << BranchDir << "': " << *BB->getTerminator(); ++NumFolds; - DestBI->setCondition(ConstantInt::get(Type::Int1Ty, BranchDir)); + DestBI->setCondition(Context->getConstantInt(Type::Int1Ty, BranchDir)); ConstantFoldTerminator(BB); return true; } @@ -563,7 +564,7 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) { // If the returned value is the load itself, replace with an undef. This can // only happen in dead loops. - if (AvailableVal == LI) AvailableVal = UndefValue::get(LI->getType()); + if (AvailableVal == LI) AvailableVal = Context->getUndef(LI->getType()); LI->replaceAllUsesWith(AvailableVal); LI->eraseFromParent(); return true; @@ -717,7 +718,7 @@ bool JumpThreading::ProcessJumpOnPHI(PHINode *PN) { // Next, figure out which successor we are threading to. BasicBlock *SuccBB; if (BranchInst *BI = dyn_cast<BranchInst>(BB->getTerminator())) - SuccBB = BI->getSuccessor(PredCst == ConstantInt::getFalse()); + SuccBB = BI->getSuccessor(PredCst == Context->getConstantIntFalse()); else { SwitchInst *SI = cast<SwitchInst>(BB->getTerminator()); SuccBB = SI->getSuccessor(SI->findCaseValue(PredCst)); @@ -755,7 +756,7 @@ bool JumpThreading::ProcessBranchOnLogical(Value *V, BasicBlock *BB, // We can only do the simplification for phi nodes of 'false' with AND or // 'true' with OR. See if we have any entries in the phi for this. unsigned PredNo = ~0U; - ConstantInt *PredCst = ConstantInt::get(Type::Int1Ty, !isAnd); + ConstantInt *PredCst = Context->getConstantInt(Type::Int1Ty, !isAnd); for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) { if (PN->getIncomingValue(i) == PredCst) { PredNo = i; @@ -793,15 +794,16 @@ bool JumpThreading::ProcessBranchOnLogical(Value *V, BasicBlock *BB, /// hand sides of the compare instruction, try to determine the result. If the /// result can not be determined, a null pointer is returned. static Constant *GetResultOfComparison(CmpInst::Predicate pred, - Value *LHS, Value *RHS) { + Value *LHS, Value *RHS, + LLVMContext* Context) { if (Constant *CLHS = dyn_cast<Constant>(LHS)) if (Constant *CRHS = dyn_cast<Constant>(RHS)) - return ConstantExpr::getCompare(pred, CLHS, CRHS); + return Context->getConstantExprCompare(pred, CLHS, CRHS); if (LHS == RHS) if (isa<IntegerType>(LHS->getType()) || isa<PointerType>(LHS->getType())) return ICmpInst::isTrueWhenEqual(pred) ? - ConstantInt::getTrue() : ConstantInt::getFalse(); + Context->getConstantIntTrue() : Context->getConstantIntFalse(); return 0; } @@ -826,7 +828,8 @@ bool JumpThreading::ProcessBranchOnCompare(CmpInst *Cmp, BasicBlock *BB) { for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) { PredVal = PN->getIncomingValue(i); - Constant *Res = GetResultOfComparison(Cmp->getPredicate(), PredVal, RHS); + Constant *Res = GetResultOfComparison(Cmp->getPredicate(), PredVal, + RHS, Context); if (!Res) { PredVal = 0; continue; |