When truncating to bool, it is necessary to & with 1 for all casts that
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
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index bcc5fbf..59ccf00 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -626,8 +626,11 @@
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 @@
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";
}