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Merge pull request #91 from harshavardhana/pr_out_remove_cpufeatures_c_code_since_pkgs_crc32c_cpu_should_be_used_instead

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Remove cpufeatures C code, since pkgs/crc32c/cpu should be used instead
This commit is contained in:
Harshavardhana 2014-12-05 17:26:03 -08:00
commit d57700922d
2 changed files with 0 additions and 83 deletions
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59
pkgs/erasure/cpufeatures.c
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@ -1,59 +0,0 @@
/*
* Mini Object Storage, (C) 2014 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
static void cpuid(int cpuinfo[4] ,int infotype) {
__asm__ __volatile__ (
"cpuid":
"=a" (cpuinfo[0]),
"=b" (cpuinfo[1]),
"=c" (cpuinfo[2]),
"=d" (cpuinfo[3]) :
"a" (infotype), "c" (0)
);
}
/*
SSE41 : return true
no SSE41 : return false
*/
int has_sse41 (void) {
int info[4];
cpuid(info, 0x00000001);
return ((info[2] & ((int)1 << 19)) != 0);
}
/*
AVX : return true
no AVX : return false
*/
int has_avx (void) {
int info[4];
cpuid(info, 0x00000001);
return ((info[2] & ((int)1 << 28)) != 0);
}
/*
AVX2 : return true
no AVX2 : return false
*/
int has_avx2 (void) {
int info[4];
cpuid(info, 0x00000007);
return ((info[1] & ((int)1 << 5)) != 0);
}

24
pkgs/erasure/cpufeatures.h
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@ -1,24 +0,0 @@
/*
* Mini Object Storage, (C) 2014 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CPU_H__
#define __CPU_H__
int has_sse41 (void);
int has_avx (void);
int has_avx2 (void);
#endif /* __CPU_H__ */