[llvm] [SDAG] Add missing float type legalizations for FMODF (PR #128055)

[Sander de Smalen via llvm-commits]

================
@@ -791,27 +792,35 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_FFREXP(SDNode *N) {
   return ReturnVal;
 }
 
-SDValue
-DAGTypeLegalizer::SoftenFloatRes_UnaryWithTwoFPResults(SDNode *N,
-                                                       RTLIB::Libcall LC) {
+SDValue DAGTypeLegalizer::SoftenFloatRes_UnaryWithTwoFPResults(
+    SDNode *N, RTLIB::Libcall LC, std::optional<unsigned> CallRetResNo) {
   assert(!N->isStrictFPOpcode() && "strictfp not implemented");
   EVT VT = N->getValueType(0);
 
+  assert(VT == N->getValueType(1) &&
+         "expected both return values to have the same type");
+
   if (!TLI.getLibcallName(LC))
     return SDValue();
 
   EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
-  SDValue FirstResultSlot = DAG.CreateStackTemporary(NVT);
-  SDValue SecondResultSlot = DAG.CreateStackTemporary(NVT);
 
   SDLoc DL(N);
 
-  TargetLowering::MakeLibCallOptions CallOptions;
-  std::array Ops{GetSoftenedFloat(N->getOperand(0)), FirstResultSlot,
-                 SecondResultSlot};
-  std::array OpsVT{VT, FirstResultSlot.getValueType(),
-                   SecondResultSlot.getValueType()};
+  SmallVector<SDValue, 3> Ops = {GetSoftenedFloat(N->getOperand(0))};
+  SmallVector<EVT, 3> OpsVT = {VT};
+
+  std::array<SDValue, 2> StackSlots;
+  for (auto [ResNum, _] : enumerate(N->values())) {
----------------
sdesmalen-arm wrote:

```suggestion
  for (unsigned ResNum = 0; ResNum < N->getNumValues(); ++ResNum) {
```

https://github.com/llvm/llvm-project/pull/128055