[clang] 765dd8b - [CGBuiltin] Simplify code. NFCI.

[Benjamin Kramer via cfe-commits]

Author: Benjamin Kramer
Date: 2022-01-14T16:02:02+01:00
New Revision: 765dd8b8a44cd9689c87c0433739f421b9871061

URL: https://github.com/llvm/llvm-project/commit/765dd8b8a44cd9689c87c0433739f421b9871061
DIFF: https://github.com/llvm/llvm-project/commit/765dd8b8a44cd9689c87c0433739f421b9871061.diff

LOG: [CGBuiltin] Simplify code. NFCI.

Added: 
    

Modified: 
    clang/lib/CodeGen/CGBuiltin.cpp

Removed: 
    


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diff  --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index f68b7d3260e1..f9633f875b61 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -18462,15 +18462,11 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
       llvm_unreachable("unexpected builtin ID");
     }
     llvm::Type *SrcT = Vec->getType();
-    llvm::Type *TruncT =
-        SrcT->getWithNewType(llvm::IntegerType::get(getLLVMContext(), 32));
+    llvm::Type *TruncT = SrcT->getWithNewType(Builder.getInt32Ty());
     Function *Callee = CGM.getIntrinsic(IntNo, {TruncT, SrcT});
     Value *Trunc = Builder.CreateCall(Callee, Vec);
-    Value *Splat = Builder.CreateVectorSplat(2, Builder.getInt32(0));
-    Value *ConcatMask =
-        llvm::ConstantVector::get({Builder.getInt32(0), Builder.getInt32(1),
-                                   Builder.getInt32(2), Builder.getInt32(3)});
-    return Builder.CreateShuffleVector(Trunc, Splat, ConcatMask);
+    Value *Splat = Constant::getNullValue(TruncT);
+    return Builder.CreateShuffleVector(Trunc, Splat, ArrayRef<int>{0, 1, 2, 3});
   }
   case WebAssembly::BI__builtin_wasm_shuffle_i8x16: {
     Value *Ops[18];