[llvm] [AMDGPU] Allow negative offsets in scratch instructions (PR #166979)

[Shilei Tian via llvm-commits]

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@@ -0,0 +1,630 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; REQUIRES: amdgpu-registered-target
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shiltian wrote:

This is not necessary since the file is under `AMDGPU` folder.

https://github.com/llvm/llvm-project/pull/166979