diff options
Diffstat (limited to 'lib/CodeGen/CGExprScalar.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprScalar.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp index 4fb69d045e..bdd7975fa0 100644 --- a/lib/CodeGen/CGExprScalar.cpp +++ b/lib/CodeGen/CGExprScalar.cpp @@ -127,6 +127,7 @@ public: Value *VisitObjCMessageExpr(ObjCMessageExpr *E); Value *VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) { return EmitLoadOfLValue(E);} Value *VisitArraySubscriptExpr(ArraySubscriptExpr *E); + Value *VisitShuffleVectorExpr(ShuffleVectorExpr *E); Value *VisitMemberExpr(Expr *E) { return EmitLoadOfLValue(E); } Value *VisitExtVectorElementExpr(Expr *E) { return EmitLoadOfLValue(E); } Value *VisitCompoundLiteralExpr(CompoundLiteralExpr *E) { return EmitLoadOfLValue(E); } @@ -449,6 +450,17 @@ Value *ScalarExprEmitter::VisitExpr(Expr *E) { return llvm::UndefValue::get(CGF.ConvertType(E->getType())); } +Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) { + llvm::SmallVector<llvm::Constant*, 32> indices; + for (unsigned i = 2; i < E->getNumSubExprs(); i++) { + indices.push_back(cast<llvm::Constant>(CGF.EmitScalarExpr(E->getExpr(i)))); + } + Value* V1 = CGF.EmitScalarExpr(E->getExpr(0)); + Value* V2 = CGF.EmitScalarExpr(E->getExpr(1)); + Value* SV = llvm::ConstantVector::get(indices.begin(), indices.size()); + return Builder.CreateShuffleVector(V1, V2, SV, "shuffle"); +} + Value *ScalarExprEmitter::VisitObjCMessageExpr(ObjCMessageExpr *E) { // Only the lookup mechanism and first two arguments of the method // implementation vary between runtimes. We can get the receiver and |