[llvm] [AMDGPU] Emit b32 movs if (a)v_mov_b64_pseudo dest vgprs are misaligned (PR #160547)

[Janek van Oirschot via llvm-commits]

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@@ -5201,7 +5208,8 @@ bool SIInstrInfo::verifyInstruction(const MachineInstr &MI,
     // aligned register constraint.
     // FIXME: We do not verify inline asm operands, but custom inline asm
     // verification is broken anyway
-    if (ST.needsAlignedVGPRs() && Opcode != AMDGPU::AV_MOV_B64_IMM_PSEUDO) {
+    if (ST.needsAlignedVGPRs() && Opcode != AMDGPU::AV_MOV_B64_IMM_PSEUDO &&
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JanekvO wrote:

Had a look and does seem to be removable but requires updating tests with rephrased verifier output. I also did not see any changes to spill pseudo (related) tests, though. Unless we *really* want this removed in this PR, I'd like to offload removal to another PR.

https://github.com/llvm/llvm-project/pull/160547