[llvm] [AArch64][SME] Allow spills of ZT0 around SME ABI routines again (PR #136726)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions h,cpp -- llvm/lib/IR/Verifier.cpp llvm/lib/Target/AArch64/SMEABIPass.cpp llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h llvm/unittests/Target/AArch64/SMEAttributesTest.cpp
``````````

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h b/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h
index 1691d4fec..3cfb27984 100644
--- a/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h
+++ b/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h
@@ -43,7 +43,7 @@ public:
     SM_Body = 1 << 2,         // aarch64_pstate_sm_body
     SME_ABI_Routine = 1 << 3, // Used for SME ABI routines to avoid lazy saves
     ZA_State_Agnostic = 1 << 4,
-    ZT0_Undef = 1 << 5,       // Use to mark ZT0 as undef to avoid spills
+    ZT0_Undef = 1 << 5, // Use to mark ZT0 as undef to avoid spills
     ZA_Shift = 6,
     ZA_Mask = 0b111 << ZA_Shift,
     ZT0_Shift = 9,

``````````

</details>


https://github.com/llvm/llvm-project/pull/136726