diff options
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/CGExprScalar.cpp | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp index 8f122963a1f..0e49ce6aaf3 100644 --- a/clang/lib/CodeGen/CGExprScalar.cpp +++ b/clang/lib/CodeGen/CGExprScalar.cpp @@ -984,8 +984,7 @@ Value *ScalarExprEmitter::VisitExpr(Expr *E) { Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) { // Vector Mask Case - if (E->getNumSubExprs() == 2 || - (E->getNumSubExprs() == 3 && E->getExpr(2)->getType()->isVectorType())) { + if (E->getNumSubExprs() == 2) { Value *LHS = CGF.EmitScalarExpr(E->getExpr(0)); Value *RHS = CGF.EmitScalarExpr(E->getExpr(1)); Value *Mask; @@ -993,22 +992,7 @@ Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) { llvm::VectorType *LTy = cast<llvm::VectorType>(LHS->getType()); unsigned LHSElts = LTy->getNumElements(); - if (E->getNumSubExprs() == 3) { - Mask = CGF.EmitScalarExpr(E->getExpr(2)); - - // Shuffle LHS & RHS into one input vector. - SmallVector<llvm::Constant*, 32> concat; - for (unsigned i = 0; i != LHSElts; ++i) { - concat.push_back(Builder.getInt32(2*i)); - concat.push_back(Builder.getInt32(2*i+1)); - } - - Value* CV = llvm::ConstantVector::get(concat); - LHS = Builder.CreateShuffleVector(LHS, RHS, CV, "concat"); - LHSElts *= 2; - } else { - Mask = RHS; - } + Mask = RHS; llvm::VectorType *MTy = cast<llvm::VectorType>(Mask->getType()); |
