glibc/sysdeps/x86_64/multiarch/wcsncat-evex.S

#ifndef WCSNCAT
# define WCSNCAT	__wcsncat_evex
#endif

#define USE_AS_WCSCPY
#define USE_AS_STRCAT

#define STRNCAT	WCSNCAT
#include "strncat-evex.S"
x86_64: Fix missing wcsncat function definition without multiarch (x86-64-v4) This code expects the WCSCAT preprocessor macro to be predefined in case the evex implementation of the function should be defined with a name different from __wcsncat_evex. However, when glibc is built for x86-64-v4 without multiarch support, sysdeps/x86_64/wcsncat.S defines WCSNCAT variable instead of WCSCAT to build it as wcsncat. Rename the variable to WCSNCAT, as it is actually a better naming choice for the variable in this case. Reported-by: Kenton Groombridge Link: https://bugs.gentoo.org/921945 Fixes: 64b8b6516b ("x86: Add evex optimized functions for the wchar_t strcpy family") Signed-off-by: Gabi Falk <gabifalk@gmx.com> Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com> 2024-05-07 18:25:00 +00:00			`#ifndef WCSNCAT`
			`# define WCSNCAT __wcsncat_evex`
x86: Add evex optimized functions for the wchar_t strcpy family Implemented: wcscat-evex (+ 905 bytes) wcscpy-evex (+ 674 bytes) wcpcpy-evex (+ 709 bytes) wcsncpy-evex (+1358 bytes) wcpncpy-evex (+1467 bytes) wcsncat-evex (+1213 bytes) Performance Changes: Times are from N = 10 runs of the benchmark suite and are reported as geometric mean of all ratios of New Implementation / Best Old Implementation. Best Old Implementation was determined with the highest ISA implementation. wcscat-evex -> 0.991 wcscpy-evex -> 0.587 wcpcpy-evex -> 0.695 wcsncpy-evex -> 0.719 wcpncpy-evex -> 0.694 wcsncat-evex -> 0.979 Code Size Changes: This change increase the size of libc.so by ~6.3kb bytes. For reference the patch optimizing the normal strcpy family functions decreases libc.so by ~5.7kb. Full check passes on x86-64 and build succeeds for all ISA levels w/ and w/o multiarch. 2022-11-09 01:38:40 +00:00			`#endif`

			`#define USE_AS_WCSCPY`
			`#define USE_AS_STRCAT`

x86_64: Fix missing wcsncat function definition without multiarch (x86-64-v4) This code expects the WCSCAT preprocessor macro to be predefined in case the evex implementation of the function should be defined with a name different from __wcsncat_evex. However, when glibc is built for x86-64-v4 without multiarch support, sysdeps/x86_64/wcsncat.S defines WCSNCAT variable instead of WCSCAT to build it as wcsncat. Rename the variable to WCSNCAT, as it is actually a better naming choice for the variable in this case. Reported-by: Kenton Groombridge Link: https://bugs.gentoo.org/921945 Fixes: 64b8b6516b ("x86: Add evex optimized functions for the wchar_t strcpy family") Signed-off-by: Gabi Falk <gabifalk@gmx.com> Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com> 2024-05-07 18:25:00 +00:00			`#define STRNCAT WCSNCAT`
x86: Add evex optimized functions for the wchar_t strcpy family Implemented: wcscat-evex (+ 905 bytes) wcscpy-evex (+ 674 bytes) wcpcpy-evex (+ 709 bytes) wcsncpy-evex (+1358 bytes) wcpncpy-evex (+1467 bytes) wcsncat-evex (+1213 bytes) Performance Changes: Times are from N = 10 runs of the benchmark suite and are reported as geometric mean of all ratios of New Implementation / Best Old Implementation. Best Old Implementation was determined with the highest ISA implementation. wcscat-evex -> 0.991 wcscpy-evex -> 0.587 wcpcpy-evex -> 0.695 wcsncpy-evex -> 0.719 wcpncpy-evex -> 0.694 wcsncat-evex -> 0.979 Code Size Changes: This change increase the size of libc.so by ~6.3kb bytes. For reference the patch optimizing the normal strcpy family functions decreases libc.so by ~5.7kb. Full check passes on x86-64 and build succeeds for all ISA levels w/ and w/o multiarch. 2022-11-09 01:38:40 +00:00			`#include "strncat-evex.S"`