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4795373db2
Fixes #4. This is based on #115 with a few modifications: - Removed use of __builtin_cpu_supports since it relies on cpuid and doesn't improve on the current situation, - Added detection for all of sse, sse2, sse3, ssse3, sse4_1 and sse4_2, - Added tests for Atom, Nehalem, and P3 processors, Thx to @gadoofou87 for providing the original PR. It also removes the need for #92 * Fix SSE detection on non-AVX CPUs * Fixes typo * Mock OSX sysctlbyname in tests * Also update other tests * FakeCpu is reset between each tests * Fix conflicting name on Windows * Disable pre AVX cpu sse detection tests on Windows * Guard OS specific code with macros * Fix missing import for tests * Fix wrong function prototype * Fix wrong mocking of P3 on Windows * Completely guard OS specific parts in x86 tests * Store DWORD instead unsigned long for x86 tests
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
// Copyright 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CPU_FEATURES_INCLUDE_INTERNAL_CPUID_X86_H_
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#define CPU_FEATURES_INCLUDE_INTERNAL_CPUID_X86_H_
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#include <stdint.h>
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#include "cpu_features_macros.h"
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CPU_FEATURES_START_CPP_NAMESPACE
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// A struct to hold the result of a call to cpuid.
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typedef struct {
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uint32_t eax, ebx, ecx, edx;
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} Leaf;
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// Returns the result of a call to the cpuid instruction.
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Leaf GetCpuidLeaf(uint32_t leaf_id, int ecx);
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// Returns the eax value of the XCR0 register.
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uint32_t GetXCR0Eax(void);
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CPU_FEATURES_END_CPP_NAMESPACE
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#endif // CPU_FEATURES_INCLUDE_INTERNAL_CPUID_X86_H_
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