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Add REP instructions detection (#282)

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This commit is contained in:
Mykola Hohsadze
2022-10-26 17:13:15 +03:00
committed by GitHub
parent 26852665b4
commit bddcc3721c
3 changed files with 43 additions and 4 deletions
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14
include/cpuinfo_x86.h
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@ -100,9 +100,13 @@ typedef struct {
int ss : 1;
int adx : 1;
int lzcnt : 1; // Note: this flag is called ABM for AMD, LZCNT for Intel.
int gfni: 1;
int movdiri: 1;
int movdir64b: 1;
int gfni : 1;
int movdiri : 1;
int movdir64b : 1;
int fs_rep_mov : 1; // Fast short REP MOV
int fz_rep_movsb : 1; // Fast zero-length REP MOVSB
int fs_rep_stosb : 1; // Fast short REP STOSB
int fs_rep_cmpsb_scasb : 1; // Fast short REP CMPSB/SCASB
// Make sure to update X86FeaturesEnum below if you add a field here.
} X86Features;
@ -262,6 +266,10 @@ typedef enum {
X86_GFNI,
X86_MOVDIRI,
X86_MOVDIR64B,
X86_FS_REP_MOV,
X86_FZ_REP_MOVSB,
X86_FS_REP_STOSB,
X86_FS_REP_CMPSB_SCASB,
X86_LAST_,
} X86FeaturesEnum;