llvm-project.git/clang/lib/AST/ExprConstant.cpp, branch main Unnamed repository; edit this file 'description' to name the repository. [Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - Allow AVX512 VPSHUFBITQMB intrinsics to be used in constexpr (#168100) 2025-11-22T17:19:27+00:00 NagaChaitanya Vellanki pnagato@protonmail.com 2025-11-22T17:19:27+00:00 456ca91815c3fdb60b5ca695c8bb05b75016a343 Resolves #161337 
Resolves #161337
 [Clang][X86] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow VPERMILPD/S variable mask intrinsics to be used in constexpr (#168861) 2025-11-22T14:37:50+00:00 stomfaig 55883018+stomfaig@users.noreply.github.com 2025-11-22T14:37:50+00:00 2e424deeb6180d112323f4df955c8034eb56780c Allowing VPERMILPD/S intrinsics to be used in constexpr Closes #167878 
Allowing VPERMILPD/S intrinsics to be used in constexpr

Closes #167878
 [clang][X86] Allow VALIGND/Q element-shift intrinsics in constexpr evaluation (#168206) 2025-11-22T11:53:34+00:00 Muhammad Abdul alilo.ghazali@gmail.com 2025-11-22T11:53:34+00:00 7305b6eb5458b5cea62b3ab70da95b790cf988f3 Fixes #167681 
Fixes #167681
 [X86][Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 mask predicate intrinsics to be used in constexpr (#165054) 2025-11-20T11:25:23+00:00 sskzakaria ssskzakaria@proton.me 2025-11-20T11:25:23+00:00 a2b4c0fbe03896ee5a9218e1ec6e4184de6ed4be Enables constexpr evaluation for the following AVX512 Instrinsics: ``` _mm_movepi8_mask _mm256_movepi8_mask _mm512_movepi8_mask _mm_movepi16_mask _mm256_movepi16_mask _mm512_movepi16_mask _mm_movepi32_mask _mm256_movepi32_mask _mm512_movepi32_mask _mm_movepi64_mask _mm256_movepi64_mask _mm512_movepi64_mask ``` Part of #162072 
Enables constexpr evaluation for the following AVX512 Instrinsics:
```
_mm_movepi8_mask _mm256_movepi8_mask _mm512_movepi8_mask
_mm_movepi16_mask _mm256_movepi16_mask _mm512_movepi16_mask
_mm_movepi32_mask _mm256_movepi32_mask _mm512_movepi32_mask
_mm_movepi64_mask _mm256_movepi64_mask _mm512_movepi64_mask
```
Part of #162072
 [Clang][X86] allow VPERMILPD/S imm intrinsics to be used in constexpr (#168044) 2025-11-19T11:50:16+00:00 stomfaig 55883018+stomfaig@users.noreply.github.com 2025-11-19T11:50:16+00:00 50791c3a708123ef75808e73a81d7d2e759f6f9b Resolves #166529 
Resolves #166529
[AllocToken] Fix and clarify -falloc-token-max=0 (#168689) 2025-11-19T11:15:15+00:00 Marco Elver elver@google.com 2025-11-19T11:15:15+00:00 150053627d14679f3db52d78b640a3e8781de828 The option -falloc-token-max=0 is supposed to be usable to override previous settings back to the target default max tokens (SIZE_MAX). This did not work for the builtin: ``` | executed command: clang -cc1 [..] -nostdsysteminc -triple x86_64-linux-gnu -std=c++23 -fsyntax-only -verify clang/test/SemaCXX/alloc-token.cpp -falloc-token-max=0 | clang: llvm/lib/Support/AllocToken.cpp:38: std::optional<uint64_t> llvm::getAllocToken(AllocTokenMode, const AllocTokenMetadata &, uint64_t): Assertion `MaxTokens && "Must provide non-zero max tokens"' failed. ``` Fix it by also picking the default if "0" is passed. Improve the documentation to be clearer what the value of "0" means. 
The option -falloc-token-max=0 is supposed to be usable to override
previous settings back to the target default max tokens (SIZE_MAX).

This did not work for the builtin:
```
| executed command: clang -cc1 [..] -nostdsysteminc -triple x86_64-linux-gnu -std=c++23 -fsyntax-only -verify clang/test/SemaCXX/alloc-token.cpp -falloc-token-max=0
| clang: llvm/lib/Support/AllocToken.cpp:38: std::optional<uint64_t> llvm::getAllocToken(AllocTokenMode, const AllocTokenMetadata &, uint64_t): Assertion `MaxTokens && "Must provide non-zero max tokens"' failed.
```

Fix it by also picking the default if "0" is passed.

Improve the documentation to be clearer what the value of "0" means.
 [Headers][X86] Allow AVX512 masked arithmetic ss/sd intrinsics to be used in constexpr (#162816) 2025-11-18T10:23:39+00:00 woruyu 1214539920@qq.com 2025-11-18T10:23:39+00:00 f9256ca6cc8636347a73c028a1e30596aa27ac89 This PR just resolves ss/sd part of AVX512 masked arithmetic intrinsics of #160559. 
This PR just resolves ss/sd part of AVX512 masked arithmetic intrinsics of #160559.
[X86] Add constexpr support for addsub intrinsics (#167512) 2025-11-17T15:34:34+00:00 Ahmed Nour ahmednour.mohamed2012@gmail.com 2025-11-17T15:34:34+00:00 47c1aa4cef638c97b74f3afb7bed60e92bba1f90 Recent commits (7fe069121b57a, 53ddeb493529a) marked several x86 intrinsics as constexpr in headers without providing the necessary constant evaluation support in the compiler backend. This caused compilation failures when attempting to use these intrinsics in constant expressions. Resolves #166814 Resolves #161203 
Recent commits (7fe069121b57a, 53ddeb493529a) marked several x86
intrinsics as constexpr in headers without providing the necessary
constant evaluation support in the compiler backend. This caused
compilation failures when attempting to use these intrinsics in constant
expressions.

Resolves #166814 
Resolves #161203
[X86][Clang] Add AVX512 kunpck intrinsics to be used in constexp (#167683) 2025-11-17T10:06:50+00:00 Ahmed Nour ahmednour.mohamed2012@gmail.com 2025-11-17T10:06:50+00:00 44f72fb39c833a8d53f433c6a03e88c81534c83e Resolves #166976 
Resolves #166976
 [Clang] Add __builtin_bswapg (#162433) 2025-11-15T20:27:38+00:00 clf 53817093+clingfei@users.noreply.github.com 2025-11-15T20:27:38+00:00 f210fc1a1ca611e9584478a50ed32011ba210c8f Add a new builtin function __builtin_bswapg. It works on any integral types that has a multiple of 16 bits as well as a single byte. Closes #160266 
Add a new builtin function __builtin_bswapg. It works on any integral
types that has a multiple of 16 bits as well as a single byte.

Closes #160266