[llvm] [GlobalISel][AArch64] Legalize G_EXTRACT_SUBVECTOR for SVE (PR #114519)

[Matt Arsenault via llvm-commits]

Thorsten =?utf-8?q?Sch=C3=BCtt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Sch=C3=BCtt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Sch=C3=BCtt?= <schuett at gmail.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/114519 at github.com>


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@@ -267,6 +267,9 @@ class LegalizationArtifactCombiner {
     const LLT DstTy = MRI.getType(DstReg);
     Register SrcReg = lookThroughCopyInstrs(MI.getOperand(1).getReg());
 
+    if (DstTy.isScalableVector())
+      return false;
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arsenm wrote:

Can hoist this up to the getType 

https://github.com/llvm/llvm-project/pull/114519