[llvm] [AMDGPU] Allocate AVRegClass last (PR #146606)

[Matt Arsenault via llvm-commits]

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@@ -1,4 +1,4 @@
-# RUN: not llc -mtriple=amdgcn -mcpu=gfx908 -verify-machineinstrs -start-before=greedy,1 -stop-after=virtregrewriter,2 %s -o /dev/null 2>&1 | FileCheck -check-prefix=ERR %s
+# RUN: not llc -mtriple=amdgcn -mcpu=gfx908  -start-before=greedy,1 -stop-after=virtregrewriter,2 %s -o /dev/null 2>&1 | FileCheck -check-prefix=ERR %s
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arsenm wrote:

I had various more complex versions of the error handling patch to handle split virtregs, but then it turned out to be unnecessary. It might help to look into those again (i.e. it was various places using splitSeparateComponents)

https://github.com/llvm/llvm-project/pull/146606