https://github.com/pcc closed https://github.com/llvm/llvm-project/pull/99260
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https://github.com/SchrodingerZhu requested changes to this pull request.
See previous comment
https://github.com/llvm/llvm-project/pull/99260
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SchrodingerZhu wrote:
Hi,
Thank you for the patch. Unfortunately, I think the proposed change is causing
failures in tests:
```
Ran 5 tests. PASS: 5 FAIL: 0
[4171/5229] Running unit test libc.test.src.stdio.snprintf_test.__unit__
FAILED:
libc/test/src/stdio/CMakeFiles/libc.test.src.stdio.s
https://github.com/lntue edited https://github.com/llvm/llvm-project/pull/99260
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llvmbot wrote:
@llvm/pr-subscribers-libc
Author: None (pcc)
Changes
We can use UMAXV.4S to reduce the comparison result in a single
instruction. This improves performance by roughly 4% on Apple M1:
Summary
bin/libc.src.string.bcmp_benchmark3 --study-name="new bcmp" --sweep-mode
--sweep
https://github.com/pcc created https://github.com/llvm/llvm-project/pull/99260
We can use UMAXV.4S to reduce the comparison result in a single
instruction. This improves performance by roughly 4% on Apple M1:
Summary
bin/libc.src.string.bcmp_benchmark3 --study-name="new bcmp" --sweep-mode
--s
