[llvm] [RISCV] Tuple intrinsics are creating overly aligned memory operands (PR #115804)

[Brandon Wu via llvm-commits]

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@@ -1623,10 +1623,17 @@ bool RISCVTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
       MemTy = MemTy->getScalarType();
 
     Info.memVT = getValueType(DL, MemTy);
-    if (MemTy->isTargetExtTy())
+    if (MemTy->isTargetExtTy()) {
+      // RISC-V vector tuple type's alignment type should be its element type.
+      if (cast<TargetExtType>(MemTy)->getName() == "riscv.vector.tuple")
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4vtomat wrote:

Yeah, maybe we should use enum instead of string lol

https://github.com/llvm/llvm-project/pull/115804