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strength reduce a ton of type equality tests to check the typeid (Through

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the new predicates I added) instead of going through a context and doing a
pointer comparison.  Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83297 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-10-05 05:54:46 +00:00
parent 5f7962c1b6
commit cf0fe8d813
17 changed files with 121 additions and 119 deletions
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22
lib/ExecutionEngine/ExecutionEngine.cpp
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@ -539,11 +539,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
}
case Instruction::UIToFP: {
GenericValue GV = getConstantValue(Op0);
if (CE->getType() == Type::getFloatTy(CE->getContext()))
if (CE->getType()->isFloatTy())
GV.FloatVal = float(GV.IntVal.roundToDouble());
else if (CE->getType() == Type::getDoubleTy(CE->getContext()))
else if (CE->getType()->isDoubleTy())
GV.DoubleVal = GV.IntVal.roundToDouble();
else if (CE->getType() == Type::getX86_FP80Ty(Op0->getContext())) {
else if (CE->getType()->isX86_FP80Ty()) {
const uint64_t zero[] = {0, 0};
APFloat apf = APFloat(APInt(80, 2, zero));
(void)apf.convertFromAPInt(GV.IntVal,
@ -555,11 +555,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
}
case Instruction::SIToFP: {
GenericValue GV = getConstantValue(Op0);
if (CE->getType() == Type::getFloatTy(CE->getContext()))
if (CE->getType()->isFloatTy())
GV.FloatVal = float(GV.IntVal.signedRoundToDouble());
else if (CE->getType() == Type::getDoubleTy(CE->getContext()))
else if (CE->getType()->isDoubleTy())
GV.DoubleVal = GV.IntVal.signedRoundToDouble();
else if (CE->getType() == Type::getX86_FP80Ty(CE->getContext())) {
else if (CE->getType()->isX86_FP80Ty()) {
const uint64_t zero[] = { 0, 0};
APFloat apf = APFloat(APInt(80, 2, zero));
(void)apf.convertFromAPInt(GV.IntVal,
@ -573,11 +573,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
case Instruction::FPToSI: {
GenericValue GV = getConstantValue(Op0);
uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
if (Op0->getType() == Type::getFloatTy(Op0->getContext()))
if (Op0->getType()->isFloatTy())
GV.IntVal = APIntOps::RoundFloatToAPInt(GV.FloatVal, BitWidth);
else if (Op0->getType() == Type::getDoubleTy(Op0->getContext()))
else if (Op0->getType()->isDoubleTy())
GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
else if (Op0->getType() == Type::getX86_FP80Ty(Op0->getContext())) {
else if (Op0->getType()->isX86_FP80Ty()) {
APFloat apf = APFloat(GV.IntVal);
uint64_t v;
bool ignored;
@ -610,9 +610,9 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
default: llvm_unreachable("Invalid bitcast operand");
case Type::IntegerTyID:
assert(DestTy->isFloatingPoint() && "invalid bitcast");
if (DestTy == Type::getFloatTy(Op0->getContext()))
if (DestTy->isFloatTy())
GV.FloatVal = GV.IntVal.bitsToFloat();
else if (DestTy == Type::getDoubleTy(DestTy->getContext()))
else if (DestTy->isDoubleTy())
GV.DoubleVal = GV.IntVal.bitsToDouble();
break;
case Type::FloatTyID: