[WebAssembly] Add getSetCCResultType placeholder override to handle vector compare results.

Necessary to get the rL335821 bugfix (which was reverted at rL335871) un-reverted.

llvm-svn: 335884

2 files changed, 12 insertions, 0 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index 633af3e8752..283e703e1f6 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -429,6 +429,15 @@ bool WebAssemblyTargetLowering::isIntDivCheap(EVT VT,
   return true;
 }
 
+EVT WebAssemblyTargetLowering::getSetCCResultType(const DataLayout &DL,
+                                                  LLVMContext &C,
+                                                  EVT VT) const {
+  if (VT.isVector())
+    return VT.changeVectorElementTypeToInteger();
+
+  return TargetLowering::getSetCCResultType(DL, C, VT);
+}
+
 //===----------------------------------------------------------------------===//
 // WebAssembly Lowering private implementation.
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
index ba42d20a2c7..79819493ac6 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
@@ -64,6 +64,9 @@ class WebAssemblyTargetLowering final : public TargetLowering {
                                       bool *Fast) const override;
   bool isIntDivCheap(EVT VT, AttributeList Attr) const override;
 
+  EVT getSetCCResultType(const DataLayout &DL, LLVMContext &Context,
+                         EVT VT) const override;
+
   SDValue LowerCall(CallLoweringInfo &CLI,
                     SmallVectorImpl<SDValue> &InVals) const override;
   bool CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,