================
@@ -17895,6 +17898,52 @@ llvm::Value
*CodeGenFunction::EmitScalarOrConstFoldImmArg(unsigned ICEArguments,
return Arg;
}
+Value *CodeGenFunction::EmitDXILBuiltinExpr(unsigned BuiltinID,
+ const CallExpr *E) {
+ switch (BuiltinID) {
+ case Builtin::BI__builtin_hlsl_dot: {
+ Value *Op0 = EmitScalarExpr(E->getArg(0));
+ Value *Op1 = EmitScalarExpr(E->getArg(1));
+ llvm::Type *T0 = Op0->getType();
+ llvm::Type *T1 = Op1->getType();
+ if (!T0->isVectorTy() && !T1->isVectorTy()) {
+ if (T0->isFloatingPointTy()) {
+ return Builder.CreateFMul(Op0, Op1, "dx.dot");
+ }
+
+ if (T0->isIntegerTy()) {
+ return Builder.CreateMul(Op0, Op1, "dx.dot");
+ }
+ ErrorUnsupported(
+ E,
+ "Dot product on a scalar is only supported on integers and floats.");
+ }
+
+ if (T0->isVectorTy() && T1->isVectorTy()) {
+
+ if (T0->getScalarType() != T1->getScalarType()) {
+ ErrorUnsupported(E,
----------------
llvm-beanz wrote:
We should also catch this in SemaChecking and not need an error here.
https://github.com/llvm/llvm-project/pull/81190
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