diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 74683fcf585..4d950984b29 100644 --- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -3562,7 +3562,16 @@ void TargetLowering::LowerAsmOperandForConstraint(SDValue Op, return; } else if ((C = dyn_cast<ConstantSDNode>(Op)) && ConstraintLetter != 's') { - Ops.push_back(DAG.getTargetConstant(Offset + C->getSExtValue(), + // gcc prints these as sign extended. Sign extend value to 64 bits + // now; without this it would get ZExt'd later in + // ScheduleDAGSDNodes::EmitNode, which is very generic. + bool IsBool = C->getConstantIntValue()->getBitWidth() == 1; + BooleanContent BCont = getBooleanContents(MVT::i64); + ISD::NodeType ExtOpc = IsBool ? getExtendForContent(BCont) + : ISD::SIGN_EXTEND; + int64_t ExtVal = ExtOpc == ISD::ZERO_EXTEND ? C->getZExtValue() + : C->getSExtValue(); + Ops.push_back(DAG.getTargetConstant(Offset + ExtVal, SDLoc(C), MVT::i64)); return; } else { |
