| Issue |
168881
|
| Summary |
[X86][Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow CRC32 intrinsics to be used in constexp
|
| Labels |
good first issue,
backend:X86,
clang:frontend,
clang:headers,
constexpr,
clang:bytecode
|
| Assignees |
|
| Reporter |
RKSimon
|
```
unsigned int _mm_crc32_u8 (unsigned int crc, unsigned char v)
unsigned int _mm_crc32_u16 (unsigned int crc, unsigned short v)
unsigned int _mm_crc32_u32 (unsigned int crc, unsigned int v)
unsigned __int64 _mm_crc32_u64 (unsigned __int64 crc, unsigned __int64 v)
```
https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=crc32
These should be implemented using the descriptions in the Intel Intrinsics documentation, and tested offline to confirm runtime and constexpr implementations match.
TEST_CONSTEXPR needs to be added to sse42-builtins.c
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