diff options
Diffstat (limited to 'lib/Target/MSP430/MSP430ISelLowering.cpp')
| -rw-r--r-- | lib/Target/MSP430/MSP430ISelLowering.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp index 5a925f5eb3e4..29cc370bef99 100644 --- a/lib/Target/MSP430/MSP430ISelLowering.cpp +++ b/lib/Target/MSP430/MSP430ISelLowering.cpp @@ -162,7 +162,7 @@ SDValue MSP430TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) { /// getFunctionAlignment - Return the Log2 alignment of this function. unsigned MSP430TargetLowering::getFunctionAlignment(const Function *F) const { - return F->hasFnAttr(Attribute::OptimizeForSize) ? 1 : 4; + return F->hasFnAttr(Attribute::OptimizeForSize) ? 1 : 2; } //===----------------------------------------------------------------------===// @@ -594,9 +594,17 @@ static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC, default: llvm_unreachable("Invalid integer condition!"); case ISD::SETEQ: TCC = MSP430CC::COND_E; // aka COND_Z + // Minor optimization: if RHS is a constant, swap operands, then the + // constant can be folded into comparison. + if (RHS.getOpcode() == ISD::Constant) + std::swap(LHS, RHS); break; case ISD::SETNE: TCC = MSP430CC::COND_NE; // aka COND_NZ + // Minor optimization: if RHS is a constant, swap operands, then the + // constant can be folded into comparison. + if (RHS.getOpcode() == ISD::Constant) + std::swap(LHS, RHS); break; case ISD::SETULE: std::swap(LHS, RHS); // FALLTHROUGH |