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Revert "infra: bump indexer to llvm-21" #13901

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Merged
merged 1 commit into from
Sep 1, 2025
Merged

Revert "infra: bump indexer to llvm-21" #13901

merged 1 commit into from
Sep 1, 2025

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oliverchang
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Reverts #13848

Unfortunately, this breaks the indexer for many projects that are still building on clang 18 with errors like:

Step #23: fatal error: too many errors emitted, stopping now [-ferror-limit=]
Step #23:       |                                         ^~~~~~~~~~~~
Step #23:   422 |     return (__m64)__builtin_ia32_paddsb((__v8qi)__m1, (__v8qi)__m2);
Step #23: /usr/local/lib/clang/18/include/mmintrin.h:422:41: error: cannot initialize a parameter of type 'unsigned int' with an rvalue of type '__v8qi' (vector of 8 'char' values)
Step #23:       |                   ^~~~~~~~~~~~~~~~~~~~~
Step #23:   422 |     return (__m64)__builtin_ia32_paddsb((__v8qi)__m1, (__v8qi)__m2);
Step #23: /usr/local/lib/clang/18/include/mmintrin.h:422:19: error: use of undeclared identifier '__builtin_ia32_paddsb'; did you mean '__builtin_ia32_kaddsi'?
Step #23:       |                   ^~~~~~~~~~~~~~~~~~~~
Step #23:   400 |     return (__m64)__builtin_ia32_paddd((__v2si)__m1, (__v2si)__m2);
Step #23: /usr/local/lib/clang/18/include/mmintrin.h:400:19: error: use of undeclared identifier '__builtin_ia32_paddd'
Step #23:       |                   ^~~~~~~~~~~~~~~~~~~~
Step #23:   379 |     return (__m64)__builtin_ia32_paddw((__v4hi)__m1, (__v4hi)__m2);
Step #23: /usr/local/lib/clang/18/include/mmintrin.h:379:19: error: use of undeclared identifier '__builtin_ia32_paddw'
Step #23:       |                   ^~~~~~~~~~~~~~~~~~~~
Step #23:   358 |     return (__m64)__builtin_ia32_paddb((__v8qi)__m1, (__v8qi)__m2);
Step #23: /usr/local/lib/clang/18/include/mmintrin.h:358:19: error: use of undeclared identifier '__builtin_ia32_paddb'

@oliverchang oliverchang merged commit 5aa445c into master Sep 1, 2025
17 of 18 checks passed
@oliverchang oliverchang deleted the revert-13848-bump-to-llvm21 branch September 1, 2025 05:49
@DavidKorczynski DavidKorczynski mentioned this pull request Sep 2, 2025
Merged
oliverchang pushed a commit that referenced this pull request Sep 8, 2025
@DavidKorczynski
infra: bump to llvm 22 (#13915)
625f70d 
Follow up to #13901 and
#13848

This proposes a clean llvm upgrade, so without having different llvm
versions in base-clang and base-clang-full.

Continuing from issues in
#13848 (comment)

Signed-off-by: David Korczynski <david@adalogics.com>
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@oliverchang