AuroraMiddleware/bullet3
1
0
Fork 0
mirror of https://github.com/bulletphysics/bullet3 synced 2024-12-14 13:50:04 +00:00
Code Issues Releases Wiki Activity

Merge pull request #188 from gjaegy/master

Browse Source 
fix crash on CPU not having AVX support
This commit is contained in:
erwincoumans 2014-06-30 12:13:26 -07:00
commit 473c2d43bf
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/LinearMath/btCpuFeatureUtility.h
View File

@ -55,10 +55,16 @@ public:
{
int cpuInfo[4];
memset(cpuInfo, 0, sizeof(cpuInfo));
unsigned long long sseExt;
unsigned long long sseExt = 0;
__cpuid(cpuInfo, 1);
sseExt = _xgetbv(0);
bool osUsesXSAVE_XRSTORE = cpuInfo[2] & (1 << 27) || false;
bool cpuAVXSuport = cpuInfo[2] & (1 << 28) || false;
if (osUsesXSAVE_XRSTORE && cpuAVXSuport)
{
sseExt = _xgetbv(0);
}
const int OSXSAVEFlag = (1UL << 27);
const int AVXFlag = ((1UL << 28) | OSXSAVEFlag);
const int FMAFlag = ((1UL << 12) | AVXFlag | OSXSAVEFlag);