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new 6468df4c44 [Codegen][LLVM][Tests] Gate +v9a vscale_range expectation
on LLVM version (#19744)
6468df4c44 is described below
commit 6468df4c445cff83ff024ab600653a3da440939c
Author: Shushi Hong <[email protected]>
AuthorDate: Fri Jun 12 08:32:51 2026 -0400
[Codegen][LLVM][Tests] Gate +v9a vscale_range expectation on LLVM version
(#19744)
Since LLVM 19, SVE/SVE2 are optional extensions of Armv9.0-A
(llvm/llvm-project#96007), so "+v9a" no longer implies "+sve" and
CodeGenAArch64 does not add the vscale_range() function attribute. Gate
the expectation in test_vscale_range_function_attribute on
llvm_version_major() < 19 so the test passes on both older LLVM (15-17,
as used in CI) and LLVM 19+.
---
tests/python/codegen/test_target_codegen_aarch64.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tests/python/codegen/test_target_codegen_aarch64.py
b/tests/python/codegen/test_target_codegen_aarch64.py
index 9191bea549..1c5618bb6b 100644
--- a/tests/python/codegen/test_target_codegen_aarch64.py
+++ b/tests/python/codegen/test_target_codegen_aarch64.py
@@ -587,7 +587,10 @@ def test_memcpy(dtype):
[
("+neon", False),
("+sve", True),
- ("+v9a", True),
+ # Since LLVM 19, SVE/SVE2 are optional extensions of Armv9.0-A, so
+ # "+v9a" no longer implies "+sve" and no vscale_range() is added:
+ #
https://releases.llvm.org/19.1.0/docs/ReleaseNotes.html#changes-to-the-aarch64-backend
+ ("+v9a", llvm_version_major() < 19),
("+sme", True),
],
)
