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| author | Fangrui Song <i@maskray.me> | 2023-08-25 20:56:25 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2023-08-25 20:56:25 -0700 |
| commit | 27da15381cbe2ac6fd1319f6409dbbab9a857b7b (patch) | |
| tree | 7ddb526b8d321736684bffb84c0fcd53efa3e371 /llvm/lib/CodeGen/CodeGenPrepare.cpp | |
| parent | 9de3b35ac9159d5bae6e6796cb91e4f877a07189 (diff) | |
| download | llvm-27da15381cbe2ac6fd1319f6409dbbab9a857b7b.zip llvm-27da15381cbe2ac6fd1319f6409dbbab9a857b7b.tar.gz llvm-27da15381cbe2ac6fd1319f6409dbbab9a857b7b.tar.bz2 | |
[X86] __builtin_cpu_supports: support x86-64{,-v2,-v3,-v4}
GCC 12 (https://gcc.gnu.org/PR101696) allows
__builtin_cpu_supports("x86-64") (and -v2 -v3 -v4).
This patch ports the feature.
* Add `FEATURE_X86_64_{BASELINE,V2,V3,V4}` to enum ProcessorFeatures,
but keep CPU_FEATURE_MAX unchanged to make
FeatureInfos/FeatureInfos_WithPLUS happy.
* Change validateCpuSupports to allow `x86-64{,-v2,-v3,-v4}`
* Change getCpuSupportsMask to return `std::array<uint32_t, 4>` where
`x86-64{,-v2,-v3,-v4}` set bits `FEATURE_X86_64_{BASELINE,V2,V3,V4}`.
* `target("x86-64")` and `cpu_dispatch(x86_64)` are invalid. Tested by commit 9de3b35ac9159d5bae6e6796cb91e4f877a07189
Close https://github.com/llvm/llvm-project/issues/59961
Reviewed By: pengfei
Differential Revision: https://reviews.llvm.org/D158811
Diffstat (limited to 'llvm/lib/CodeGen/CodeGenPrepare.cpp')
0 files changed, 0 insertions, 0 deletions