getelementptr instruction, support index vector of EVT .

[igorb]

Summary

getelementptr instruction , support index vector of EVT.

[delena]

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

3249 ↗

(On Diff #55739)

Is VT of N always simple?

[igorb]

Changed according to comments,
Thanks!

llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
   SDLoc dl = getCurSDLoc();
 
   // Normalize Vector GEP - all scalar operands should be converted to the
   // splat vector.
   unsigned VectorWidth = I.getType()->isVectorTy() ?
     cast<VectorType>(I.getType())->getVectorNumElements() : 0;
 
   if (VectorWidth && !N.getValueType().isVector()) {
-    MVT VT = MVT::getVectorVT(N.getValueType().getSimpleVT(), VectorWidth);
+    LLVMContext &Context = *DAG.getContext();
+    EVT VT = EVT::getVectorVT(Context, N.getValueType(), VectorWidth);
     SmallVector<SDValue, 16> Ops(VectorWidth, N);
     N = DAG.getNode(ISD::BUILD_VECTOR, dl, VT, Ops);
   }
   for (gep_type_iterator GTI = gep_type_begin(&I), E = gep_type_end(&I);
        GTI != E; ++GTI) {
     const Value *Idx = GTI.getOperand();
     if (StructType *StTy = dyn_cast<StructType>(*GTI)) {
       unsigned Field = cast<Constant>(Idx)->getUniqueInteger().getZExtValue();

llvm/trunk/test/CodeGen/X86/vector-gep.ll

 ;CHECK: vpadd
 ; add the base to the offset
 ;CHECK: vbroadcastss
 ;CHECK-NEXT: vpadd
   %A = getelementptr i16, i16* %param, <4 x i32> %off
   ret <4 x i16*> %A
 ;CHECK: ret
 }
+
+;CHECK-LABEL: AGEP9:
+define <64 x i16*> @AGEP9(i16* %param, <64 x i32> %off) nounwind {
+entry:
+;CHECK: vbroadcastss
+  %A = getelementptr i16, i16* %param, <64 x i32> %off
+  ret <64 x i16*> %A
+;CHECK: ret
+}