================
@@ -157,6 +158,35 @@ static bool expandAnyIntrinsic(CallInst *Orig) {
return true;
}
+static bool expandLengthIntrinsic(CallInst *Orig) {
+ Value *X = Orig->getOperand(0);
+ IRBuilder<> Builder(Orig->getParent());
+ Builder.SetInsertPoint(Orig);
+ Type *Ty = X->getType();
+ Type *EltTy = Ty->getScalarType();
+
+ // Though dx.length does work on scalar type, we can optimize it to just emit
+ // fabs, in CGBuiltin.cpp. We shouldn't see a scalar type here because
+ // CGBuiltin.cpp should have emitted a fabs call.
+ Value *Elt = Builder.CreateExtractElement(X, (uint64_t)0);
+ auto *XVec = dyn_cast<FixedVectorType>(Ty);
+ unsigned size = XVec->getNumElements();
+ assert(Ty->isVectorTy() && size > 1 && "dx.length only works on vector
type");
----------------
bogner wrote:
The message should probably say "dx.length requires a vector of length 2 or
more"
https://github.com/llvm/llvm-project/pull/101256
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
