Lower SETCC nodes during legalization. Previously, it was lowered in DAG combine pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152450 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 404db36..8442dca 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -142,6 +142,8 @@
setOperationAction(ISD::SELECT, MVT::f32, Custom);
setOperationAction(ISD::SELECT, MVT::f64, Custom);
setOperationAction(ISD::SELECT, MVT::i32, Custom);
+ setOperationAction(ISD::SETCC, MVT::f32, Custom);
+ setOperationAction(ISD::SETCC, MVT::f64, Custom);
setOperationAction(ISD::BRCOND, MVT::Other, Custom);
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Custom);
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64, Custom);
@@ -246,7 +248,6 @@
setTargetDAGCombine(ISD::SUBE);
setTargetDAGCombine(ISD::SDIVREM);
setTargetDAGCombine(ISD::UDIVREM);
- setTargetDAGCombine(ISD::SETCC);
setTargetDAGCombine(ISD::SELECT);
setTargetDAGCombine(ISD::AND);
setTargetDAGCombine(ISD::OR);
@@ -560,23 +561,6 @@
True.getValueType(), True, False, Cond);
}
-static SDValue PerformSETCCCombine(SDNode *N, SelectionDAG& DAG,
- TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget* Subtarget) {
- if (DCI.isBeforeLegalizeOps())
- return SDValue();
-
- SDValue Cond = CreateFPCmp(DAG, SDValue(N, 0));
-
- if (Cond.getOpcode() != MipsISD::FPCmp)
- return SDValue();
-
- SDValue True = DAG.getConstant(1, MVT::i32);
- SDValue False = DAG.getConstant(0, MVT::i32);
-
- return CreateCMovFP(DAG, Cond, True, False, N->getDebugLoc());
-}
-
static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG& DAG,
TargetLowering::DAGCombinerInfo &DCI,
const MipsSubtarget* Subtarget) {
@@ -718,8 +702,6 @@
case ISD::SDIVREM:
case ISD::UDIVREM:
return PerformDivRemCombine(N, DAG, DCI, Subtarget);
- case ISD::SETCC:
- return PerformSETCCCombine(N, DAG, DCI, Subtarget);
case ISD::SELECT:
return PerformSELECTCombine(N, DAG, DCI, Subtarget);
case ISD::AND:
@@ -744,6 +726,7 @@
case ISD::GlobalTLSAddress: return LowerGlobalTLSAddress(Op, DAG);
case ISD::JumpTable: return LowerJumpTable(Op, DAG);
case ISD::SELECT: return LowerSELECT(Op, DAG);
+ case ISD::SETCC: return LowerSETCC(Op, DAG);
case ISD::VASTART: return LowerVASTART(Op, DAG);
case ISD::FCOPYSIGN: return LowerFCOPYSIGN(Op, DAG);
case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG);
@@ -1511,6 +1494,18 @@
Op.getDebugLoc());
}
+SDValue MipsTargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) const {
+ SDValue Cond = CreateFPCmp(DAG, Op);
+
+ assert(Cond.getOpcode() == MipsISD::FPCmp &&
+ "Floating point operand expected.");
+
+ SDValue True = DAG.getConstant(1, MVT::i32);
+ SDValue False = DAG.getConstant(0, MVT::i32);
+
+ return CreateCMovFP(DAG, Cond, True, False, Op.getDebugLoc());
+}
+
SDValue MipsTargetLowering::LowerGlobalAddress(SDValue Op,
SelectionDAG &DAG) const {
// FIXME there isn't actually debug info here