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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp2
-rw-r--r--llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp5
2 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 9e802b99ed4..16425a08200 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -3762,7 +3762,7 @@ SDValue SelectionDAG::FoldConstantVectorArithmetic(unsigned Opcode,
// Find legal integer scalar type for constant promotion and
// ensure that its scalar size is at least as large as source.
EVT LegalSVT = VT.getScalarType();
- if (LegalSVT.isInteger()) {
+ if (NewNodesMustHaveLegalTypes && LegalSVT.isInteger()) {
LegalSVT = TLI->getTypeToTransformTo(*getContext(), LegalSVT);
if (LegalSVT.bitsLT(VT.getScalarType()))
return SDValue();
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 25646358d96..989c33e0fcb 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -763,6 +763,10 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
int BlockNumber = -1;
(void)BlockNumber;
bool MatchFilterBB = false; (void)MatchFilterBB;
+
+ // Pre-type legalization allow creation of any node types.
+ CurDAG->NewNodesMustHaveLegalTypes = false;
+
#ifndef NDEBUG
MatchFilterBB = (FilterDAGBasicBlockName.empty() ||
FilterDAGBasicBlockName ==
@@ -809,6 +813,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
DEBUG(dbgs() << "Type-legalized selection DAG: BB#" << BlockNumber
<< " '" << BlockName << "'\n"; CurDAG->dump());
+ // Only allow creation of legal node types.
CurDAG->NewNodesMustHaveLegalTypes = true;
if (Changed) {
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