diff options
Diffstat (limited to 'llvm/lib/IR/Constants.cpp')
| -rw-r--r-- | llvm/lib/IR/Constants.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp index 00c722651ed..5545eb46686 100644 --- a/llvm/lib/IR/Constants.cpp +++ b/llvm/lib/IR/Constants.cpp @@ -1830,7 +1830,8 @@ Constant *ConstantExpr::get(unsigned Opcode, Constant *C, unsigned Flags, } #endif - // TODO: Try to constant fold operation. + if (Constant *FC = ConstantFoldUnaryInstruction(Opcode, C)) + return FC; if (OnlyIfReducedTy == C->getType()) return nullptr; @@ -1909,7 +1910,7 @@ Constant *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2, #endif if (Constant *FC = ConstantFoldBinaryInstruction(Opcode, C1, C2)) - return FC; // Fold a few common cases. + return FC; if (OnlyIfReducedTy == C1->getType()) return nullptr; @@ -2235,7 +2236,7 @@ Constant *ConstantExpr::getNeg(Constant *C, bool HasNUW, bool HasNSW) { Constant *ConstantExpr::getFNeg(Constant *C) { assert(C->getType()->isFPOrFPVectorTy() && "Cannot FNEG a non-floating-point value!"); - return getFSub(ConstantFP::getZeroValueForNegation(C->getType()), C); + return get(Instruction::FNeg, C); } Constant *ConstantExpr::getNot(Constant *C) { @@ -3024,7 +3025,8 @@ Instruction *ConstantExpr::getAsInstruction() { case Instruction::FCmp: return CmpInst::Create((Instruction::OtherOps)getOpcode(), (CmpInst::Predicate)getPredicate(), Ops[0], Ops[1]); - + case Instruction::FNeg: + return UnaryOperator::Create((Instruction::UnaryOps)getOpcode(), Ops[0]); default: assert(getNumOperands() == 2 && "Must be binary operator?"); BinaryOperator *BO = |
