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When truncating to bool, it is necessary to & with 1 for all casts that

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can result in a bool. Previously PtrToInt, FPToUI and FPToSI were missing
this operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31938 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-11-27 18:51:06 +00:00
parent eb7313805b
commit 639cf7d380
2 changed files with 20 additions and 6 deletions
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13
lib/Target/CBackend/CBackend.cpp
View File

@ -626,8 +626,11 @@ void CWriter::printConstant(Constant *CPV) {
Out << "0-"; Out << "0-";
} }
printConstant(CE->getOperand(0)); printConstant(CE->getOperand(0));
if (CE->getOpcode() == Instruction::Trunc && if (CE->getType() == Type::BoolTy &&
CE->getType() == Type::BoolTy) { (CE->getOpcode() == Instruction::Trunc ||
CE->getOpcode() == Instruction::FPToUI ||
CE->getOpcode() == Instruction::FPToSI ||
CE->getOpcode() == Instruction::PtrToInt)) {
// Make sure we really truncate to bool here by anding with 1 // Make sure we really truncate to bool here by anding with 1
Out << "&1u"; Out << "&1u";
} }
@ -1960,7 +1963,11 @@ void CWriter::visitCastInst(CastInst &I) {
Out << "0-"; Out << "0-";
} }
writeOperand(I.getOperand(0)); writeOperand(I.getOperand(0));
if (I.getOpcode() == Instruction::Trunc && DstTy == Type::BoolTy) { if (DstTy == Type::BoolTy &&
(I.getOpcode() == Instruction::Trunc ||
I.getOpcode() == Instruction::FPToUI ||
I.getOpcode() == Instruction::FPToSI ||
I.getOpcode() == Instruction::PtrToInt)) {
// Make sure we really get a trunc to bool by anding the operand with 1 // Make sure we really get a trunc to bool by anding the operand with 1
Out << "&1u"; Out << "&1u";
} }

13
lib/Target/CBackend/Writer.cpp
View File

@ -626,8 +626,11 @@ void CWriter::printConstant(Constant *CPV) {
Out << "0-"; Out << "0-";
} }
printConstant(CE->getOperand(0)); printConstant(CE->getOperand(0));
if (CE->getOpcode() == Instruction::Trunc && if (CE->getType() == Type::BoolTy &&
CE->getType() == Type::BoolTy) { (CE->getOpcode() == Instruction::Trunc ||
CE->getOpcode() == Instruction::FPToUI ||
CE->getOpcode() == Instruction::FPToSI ||
CE->getOpcode() == Instruction::PtrToInt)) {
// Make sure we really truncate to bool here by anding with 1 // Make sure we really truncate to bool here by anding with 1
Out << "&1u"; Out << "&1u";
} }
@ -1960,7 +1963,11 @@ void CWriter::visitCastInst(CastInst &I) {
Out << "0-"; Out << "0-";
} }
writeOperand(I.getOperand(0)); writeOperand(I.getOperand(0));
if (I.getOpcode() == Instruction::Trunc && DstTy == Type::BoolTy) { if (DstTy == Type::BoolTy &&
(I.getOpcode() == Instruction::Trunc ||
I.getOpcode() == Instruction::FPToUI ||
I.getOpcode() == Instruction::FPToSI ||
I.getOpcode() == Instruction::PtrToInt)) {
// Make sure we really get a trunc to bool by anding the operand with 1 // Make sure we really get a trunc to bool by anding the operand with 1
Out << "&1u"; Out << "&1u";
} }