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Revert change r231366 as it broke clang-native-arm-cortex-a9 Analysis/properties.m test.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231374 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Igor Laevsky
2015-03-05 15:41:14 +00:00
parent e670dc7848
commit 684d323b9b
4 changed files with 22 additions and 130 deletions
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39
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@@ -1016,24 +1016,6 @@ void SelectionDAGBuilder::resolveDanglingDebugInfo(const Value *V,
}
}
/// getCopyFromRegs - If there was virtual register allocated for the value V
/// emit CopyFromReg of the specified type Ty. Return empty SDValue() otherwise.
SDValue SelectionDAGBuilder::getCopyFromRegs(const Value *V, Type *Ty) {
DenseMap<const Value *, unsigned>::iterator It = FuncInfo.ValueMap.find(V);
SDValue res;
if (It != FuncInfo.ValueMap.end()) {
unsigned InReg = It->second;
RegsForValue RFV(*DAG.getContext(), DAG.getTargetLoweringInfo(), InReg,
Ty);
SDValue Chain = DAG.getEntryNode();
res = RFV.getCopyFromRegs(DAG, FuncInfo, getCurSDLoc(), Chain, nullptr, V);
resolveDanglingDebugInfo(V, res);
}
return res;
}
/// getValue - Return an SDValue for the given Value.
SDValue SelectionDAGBuilder::getValue(const Value *V) {
// If we already have an SDValue for this value, use it. It's important
@@ -1044,9 +1026,15 @@ SDValue SelectionDAGBuilder::getValue(const Value *V) {
// If there's a virtual register allocated and initialized for this
// value, use it.
SDValue copyFromReg = getCopyFromRegs(V, V->getType());
if (copyFromReg.getNode()) {
return copyFromReg;
DenseMap<const Value *, unsigned>::iterator It = FuncInfo.ValueMap.find(V);
if (It != FuncInfo.ValueMap.end()) {
unsigned InReg = It->second;
RegsForValue RFV(*DAG.getContext(), DAG.getTargetLoweringInfo(), InReg,
V->getType());
SDValue Chain = DAG.getEntryNode();
N = RFV.getCopyFromRegs(DAG, FuncInfo, getCurSDLoc(), Chain, nullptr, V);
resolveDanglingDebugInfo(V, N);
return N;
}
// Otherwise create a new SDValue and remember it.
@@ -2039,20 +2027,13 @@ void SelectionDAGBuilder::visitInvoke(const InvokeInst &I) {
case Intrinsic::experimental_patchpoint_i64:
visitPatchpoint(&I, LandingPad);
break;
case Intrinsic::experimental_gc_statepoint:
LowerStatepoint(ImmutableStatepoint(&I), LandingPad);
break;
}
} else
LowerCallTo(&I, getValue(Callee), false, LandingPad);
// If the value of the invoke is used outside of its defining block, make it
// available as a virtual register.
// We already took care of the exported value for the statepoint instruction
// during call to the LowerStatepoint.
if (!isStatepoint(I)) {
CopyToExportRegsIfNeeded(&I);
}
CopyToExportRegsIfNeeded(&I);
// Update successor info
addSuccessorWithWeight(InvokeMBB, Return);