Add ARMv6 memory and sync barrier instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91329 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 4931add..7950ee0 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -1474,17 +1474,24 @@
}
}
-static SDValue LowerMEMBARRIER(SDValue Op, SelectionDAG &DAG) {
+static SDValue LowerMEMBARRIER(SDValue Op, SelectionDAG &DAG,
+ const ARMSubtarget *Subtarget) {
DebugLoc dl = Op.getDebugLoc();
SDValue Op5 = Op.getOperand(5);
SDValue Res;
unsigned isDeviceBarrier = cast<ConstantSDNode>(Op5)->getZExtValue();
if (isDeviceBarrier) {
- Res = DAG.getNode(ARMISD::SYNCBARRIER, dl, MVT::Other,
- Op.getOperand(0));
+ if (Subtarget->hasV7Ops())
+ Res = DAG.getNode(ARMISD::SYNCBARRIER, dl, MVT::Other, Op.getOperand(0));
+ else
+ Res = DAG.getNode(ARMISD::SYNCBARRIER, dl, MVT::Other, Op.getOperand(0),
+ DAG.getConstant(0, MVT::i32));
} else {
- Res = DAG.getNode(ARMISD::MEMBARRIER, dl, MVT::Other,
- Op.getOperand(0));
+ if (Subtarget->hasV7Ops())
+ Res = DAG.getNode(ARMISD::MEMBARRIER, dl, MVT::Other, Op.getOperand(0));
+ else
+ Res = DAG.getNode(ARMISD::MEMBARRIER, dl, MVT::Other, Op.getOperand(0),
+ DAG.getConstant(0, MVT::i32));
}
return Res;
}
@@ -2991,7 +2998,7 @@
case ISD::BR_JT: return LowerBR_JT(Op, DAG);
case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG);
case ISD::VASTART: return LowerVASTART(Op, DAG, VarArgsFrameIndex);
- case ISD::MEMBARRIER: return LowerMEMBARRIER(Op, DAG);
+ case ISD::MEMBARRIER: return LowerMEMBARRIER(Op, DAG, Subtarget);
case ISD::SINT_TO_FP:
case ISD::UINT_TO_FP: return LowerINT_TO_FP(Op, DAG);
case ISD::FP_TO_SINT: