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[libc] add cpu feature flags for SVE/SVE2/MOPS #166884

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Merged
merged 2 commits into from
Nov 7, 2025
Merged

[libc] add cpu feature flags for SVE/SVE2/MOPS #166884

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ad09309
[libc] add cpu feature flags for SVE/SVE2/MOPS
SchrodingerZhu Nov 7, 2025
d3aa279
[libc] remove extra lines
SchrodingerZhu Nov 7, 2025
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2 changes: 1 addition & 1 deletion libc/cmake/modules/LLVMLibCCheckCpuFeatures.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ if(LIBC_TARGET_ARCHITECTURE_IS_X86_64)
set(ALL_CPU_FEATURES SSE2 SSE4_2 AVX AVX2 AVX512F AVX512BW FMA)
set(LIBC_COMPILE_OPTIONS_NATIVE -march=native)
elseif(LIBC_TARGET_ARCHITECTURE_IS_AARCH64)
set(ALL_CPU_FEATURES "FullFP16")
set(ALL_CPU_FEATURES FullFP16 MOPS SVE SVE2)
set(LIBC_COMPILE_OPTIONS_NATIVE -mcpu=native)
endif()

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5 changes: 5 additions & 0 deletions libc/cmake/modules/cpu_features/check_MOPS.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
#include "src/__support/macros/properties/cpu_features.h"

#ifndef LIBC_TARGET_CPU_HAS_MOPS
#error unsupported
#endif
5 changes: 5 additions & 0 deletions libc/cmake/modules/cpu_features/check_SVE.cpp
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@@ -0,0 +1,5 @@
#include "src/__support/macros/properties/cpu_features.h"

#ifndef LIBC_TARGET_CPU_HAS_SVE
#error unsupported
#endif
5 changes: 5 additions & 0 deletions libc/cmake/modules/cpu_features/check_SVE2.cpp
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@@ -0,0 +1,5 @@
#include "src/__support/macros/properties/cpu_features.h"

#ifndef LIBC_TARGET_CPU_HAS_SVE2
#error unsupported
#endif
12 changes: 12 additions & 0 deletions libc/src/__support/macros/properties/cpu_features.h
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Expand Up @@ -18,6 +18,18 @@
#define LIBC_TARGET_CPU_HAS_FULLFP16
#endif

#if defined(__ARM_FEATURE_SVE)
#define LIBC_TARGET_CPU_HAS_SVE
#endif

#if defined(__ARM_FEATURE_SVE2)
#define LIBC_TARGET_CPU_HAS_SVE2
#endif

#if defined(__ARM_FEATURE_MOPS)
#define LIBC_TARGET_CPU_HAS_MOPS
#endif

#if defined(__SSE2__)
#define LIBC_TARGET_CPU_HAS_SSE2
#define LIBC_TARGET_CPU_HAS_FPU_FLOAT
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