Fix AVX512 capability test (always returning zero)

martin-frbg · web-flow · commit f95989cbc1d0 · 2019-11-23T22:38:07.000+01:00
from #2322
diff --git a/driver/others/dynamic.c b/driver/others/dynamic.c
@@ -329,7 +329,7 @@ int support_avx512(){
   if (!support_avx())
     return 0;
   cpuid(7, &eax, &ebx, &ecx, &edx);
-  if((ebx & (1<<7)) != 1){
+  if((ebx & (1<<7)) == 0){
       ret=0;  //OS does not even support AVX2
   }
   if((ebx & (1<<31)) != 0){

Original file line number	Diff line number	Diff line change
`@@ -329,7 +329,7 @@ int support_avx512(){`
`329`	`329`	`if (!support_avx())`
`330`	`330`	`return 0;`
`331`	`331`	`cpuid(7, &eax, &ebx, &ecx, &edx);`
`332`		`- if((ebx & (1<<7)) != 1){`
	`332`	`+ if((ebx & (1<<7)) == 0){`
`333`	`333`	`ret=0; //OS does not even support AVX2`
`334`	`334`	`}`
`335`	`335`	`if((ebx & (1<<31)) != 0){`