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Make setup_cpu_info work on (Intel) Macs (#2798)

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## Problem

OpenGOAL incorrectly identifies Intel Macs a not supporting AVX.

## Solution

Use the CPUID instruction for x86_64 Macs as well as Linux.
This commit is contained in:
Fabian Bergström 2023-07-05 00:19:34 +02:00 committed by GitHub
parent b50b9eadb2
commit 34f49469ec
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 9 deletions
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18
common/util/os.cpp
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@ -1,6 +1,7 @@
#include "os.h"
#include "common/common_types.h"
#include "common/log/log.h"
#ifdef __linux__
@ -21,20 +22,21 @@ size_t get_peak_rss() {
#ifdef _WIN32
// windows has a __cpuid
#include <intrin.h>
#elif __APPLE__
// for now, just return 0's.
void __cpuidex(int result[4], int eax, int ecx) {
for (int i = 0; i < 4; i++) {
result[i] = 0;
}
}
#else
#elif __x86_64__
// using int to be compatible with msvc's intrinsic
void __cpuidex(int result[4], int eax, int ecx) {
asm("cpuid\n\t"
: "=a"(result[0]), "=b"(result[1]), "=c"(result[2]), "=d"(result[3])
: "0"(eax), "2"(ecx));
}
#else
// for now, just return 0's.
void __cpuidex(int result[4], int eax, int ecx) {
lg::warn("cpuid not implemented on this platform");
for (int i = 0; i < 4; i++) {
result[i] = 0;
}
}
#endif
CpuInfo gCpuInfo;