[llvm] [TargetLowering] Use Correct VT for Multi-out Asm (PR #116024)

[Matt Arsenault via llvm-commits]

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@@ -5753,7 +5753,8 @@ TargetLowering::ParseConstraints(const DataLayout &DL,
       assert(!Call.getType()->isVoidTy() && "Bad inline asm!");
       if (auto *STy = dyn_cast<StructType>(Call.getType())) {
         OpInfo.ConstraintVT =
-            getSimpleValueType(DL, STy->getElementType(ResNo));
+            getAsmOperandValueType(DL, STy->getElementType(ResNo))
+                .getSimpleVT();
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arsenm wrote:

I just tried it and it seems to hit unreachable "Unknown type!"; we should do better here and report a proper error 

https://github.com/llvm/llvm-project/pull/116024