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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.

llvm-svn: 31938
This commit is contained in:
Reid Spencer 2006-11-27 18:51:06 +00:00
parent 250560d106
commit 6010c0ef4a
1 changed files with 10 additions and 3 deletions
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13
lib/Target/CBackend/Writer.cpp
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@ -626,8 +626,11 @@ void CWriter::printConstant(Constant *CPV) {
Out << "0-";
}
printConstant(CE->getOperand(0));
if (CE->getOpcode() == Instruction::Trunc &&
CE->getType() == Type::BoolTy) {
if (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
Out << "&1u";
}
@ -1960,7 +1963,11 @@ void CWriter::visitCastInst(CastInst &I) {
Out << "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
Out << "&1u";
}