[llvm] [AArch64] Address issue reported in PR#196029 (PR #199122)

[Sushant Gokhale via llvm-commits]

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@@ -1762,9 +1762,13 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM,
     }
 
     // SVE supports truncating stores of 64 and 128-bit vectors
+    auto VT = MVT::v2i64;
+    if (useSVEForFixedLengthVectorVT(
+            VT, /*OverrideNEON=*/Subtarget->useSVEForFixedLengthVectors()))
+      setTruncStoreAction(VT, MVT::v2i32, Custom);
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sushgokh wrote:

I was bit skeptical about removing the entire code. Removing the code makes no change to the test output. Thanks. Done.

https://github.com/llvm/llvm-project/pull/199122