FastISel support for i1 constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 8a70b06..13b1793 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -33,8 +33,16 @@
return Reg;
MVT::SimpleValueType VT = TLI.getValueType(V->getType()).getSimpleVT();
- if (!TLI.isTypeLegal(VT))
- return 0;
+
+ // Ignore illegal types.
+ if (!TLI.isTypeLegal(VT)) {
+ // Promote MVT::i1 to a legal type though, because it's common and easy.
+ if (VT == MVT::i1)
+ VT = TLI.getTypeToTransformTo(VT).getSimpleVT();
+ else
+ return 0;
+ }
+
if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
if (CI->getValue().getActiveBits() > 64)
return TargetMaterializeConstant(CI);