================
@@ -2320,6 +2330,65 @@ static bool interp__builtin_elementwise_sat(InterpState
&S, CodePtr OpPC,
return true;
}
+static bool interp__builtin_elementwise_fma(InterpState &S, CodePtr OpPC,
+ const CallExpr *Call) {
+ assert(Call->getNumArgs() == 3);
+
+ llvm::RoundingMode RM = getRoundingMode(S, Call);
+
+ const QualType Arg1Type = Call->getArg(0)->getType();
+ const QualType Arg2Type = Call->getArg(1)->getType();
+ const QualType Arg3Type = Call->getArg(2)->getType();
+
+ // Non-vector floating point types.
+ if (!Arg1Type->isVectorType()) {
+ assert(!Arg2Type->isVectorType());
+ assert(!Arg3Type->isVectorType());
+
+ const Floating &Z = S.Stk.pop<Floating>();
+ const Floating &Y = S.Stk.pop<Floating>();
+ const Floating &X = S.Stk.pop<Floating>();
+
+ APFloat F = X.getAPFloat();
+ F.fusedMultiplyAdd(Y.getAPFloat(), Z.getAPFloat(), RM);
+ Floating Result = S.allocFloat(X.getSemantics());
+ Result.copy(F);
+ S.Stk.push<Floating>(Result);
+ return true;
+ }
+
+ // Vector type.
+ assert(Arg1Type->isVectorType() &&
+ Arg2Type->isVectorType() &&
+ Arg3Type->isVectorType());
+
+ const VectorType *VecT = Arg1Type->castAs<VectorType>();
+ const QualType ElemT = VecT->getElementType();
+ unsigned NumElems = VecT->getNumElements();
+
+ assert(ElemT == Arg2Type->castAs<VectorType>()->getElementType() &&
+ ElemT == Arg3Type->castAs<VectorType>()->getElementType());
+ assert(NumElems == Arg2Type->castAs<VectorType>()->getNumElements() &&
+ NumElems == Arg3Type->castAs<VectorType>()->getNumElements());
+ assert(ElemT->isRealFloatingType());
+
+ const Pointer &VZ = S.Stk.pop<Pointer>();
+ const Pointer &VY = S.Stk.pop<Pointer>();
+ const Pointer &VX = S.Stk.pop<Pointer>();
+ const Pointer &Dst = S.Stk.peek<Pointer>();
+
+ for (unsigned I = 0; I != NumElems; ++I) {
+ using T = PrimConv<PT_Float>::T;
+ APFloat X = VX.elem<T>(I).getAPFloat();
+ APFloat Y = VY.elem<T>(I).getAPFloat();
+ APFloat Z = VZ.elem<T>(I).getAPFloat();
+ (void)X.fusedMultiplyAdd(Y, Z, RM);
+ Dst.elem<T>(I) = static_cast<PrimConv<PT_Float>::T>(X);
----------------
ckoparkar wrote:
Done.
https://github.com/llvm/llvm-project/pull/152919
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