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Fix Windows unable to load models on older Windows builds

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- Replace high-level IsProcessorFeaturePresent
- Reintroduce low-level compiler intrinsics implementation
This commit is contained in:
Cosmic Snow 2023-08-08 00:17:41 +02:00 committed by cosmic-snow
parent 0f2bb506a8
commit 108d950874
1 changed files with 7 additions and 4 deletions
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11
gpt4all-backend/llmodel.cpp
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@ -11,8 +11,7 @@
#include <cstdlib>
#include <sstream>
#ifdef _MSC_VER
#include <windows.h>
#include <processthreadsapi.h>
#include <intrin.h>
#endif
std::string s_implementations_search_path = ".";
@ -22,7 +21,9 @@ static bool has_at_least_minimal_hardware() {
#ifndef _MSC_VER
return __builtin_cpu_supports("avx");
#else
return IsProcessorFeaturePresent(PF_AVX_INSTRUCTIONS_AVAILABLE);
int cpuInfo[4];
__cpuid(cpuInfo, 1);
return cpuInfo[2] & (1 << 28);
#endif
#else
return true; // Don't know how to handle non-x86_64
@ -34,7 +35,9 @@ static bool requires_avxonly() {
#ifndef _MSC_VER
return !__builtin_cpu_supports("avx2");
#else
return !IsProcessorFeaturePresent(PF_AVX2_INSTRUCTIONS_AVAILABLE);
int cpuInfo[4];
__cpuidex(cpuInfo, 7, 0);
return !(cpuInfo[1] & (1 << 5));
#endif
#else
return false; // Don't know how to handle non-x86_64