glibc/sysdeps/x86_64/multiarch/wcsrchr-evex512.S

#ifndef WCSRCHR
# define WCSRCHR	__wcsrchr_evex512
#endif

#define STRRCHR	WCSRCHR
#define USE_AS_WCSRCHR 1

#define USE_WIDE_CHAR 1

#include "x86-evex512-vecs.h"
#include "reg-macros.h"

#include "strrchr-evex512.S"
x86_64: Implement evex512 version of strrchr and wcsrchr Changes from v1: Use vec api for register. Replace VPCMP with VPCMPEQ Restructure and remove 1 unconditional jump. Change page cross logic to use sall. This patch implements following evex512 version of string functions. evex512 version takes up to 30% less cycle as compared to evex, depending on length and alignment. - strrchr function using 512 bit vectors. - wcsrchr function using 512 bit vectors. Code size data: strrchr-evex.o 879 byte strrchr-evex512.o 601 byte (-32%) wcsrchr-evex.o 882 byte wcsrchr-evex512.o 572 byte (-35%) Placeholder function, not used by any processor at the moment. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com> 2022-08-09 14:57:29 +00:00			`#ifndef WCSRCHR`
			`# define WCSRCHR __wcsrchr_evex512`
			`#endif`

			`#define STRRCHR WCSRCHR`
			`#define USE_AS_WCSRCHR 1`

			`#define USE_WIDE_CHAR 1`

			`#include "x86-evex512-vecs.h"`
			`#include "reg-macros.h"`

			`#include "strrchr-evex512.S"`