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Diffstat (limited to 'sysdeps/s390/multiarch/strcat-vx.S')
| -rw-r--r-- | sysdeps/s390/multiarch/strcat-vx.S | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/sysdeps/s390/multiarch/strcat-vx.S b/sysdeps/s390/multiarch/strcat-vx.S deleted file mode 100644 index 65c19c21c8..0000000000 --- a/sysdeps/s390/multiarch/strcat-vx.S +++ /dev/null @@ -1,161 +0,0 @@ -/* Vector optimized 32/64 bit S/390 version of strcat. - Copyright (C) 2015-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) - -# include "sysdep.h" -# include "asm-syntax.h" - - .text - -/* char * strcat (const char *dest, const char *src) - Concatenate two strings. - - Register usage: - -r0=saved dest pointer for return - -r1=tmp - -r2=dest - -r3=src - -r4=tmp - -r5=current_len - -v16=part of src - -v17=index of zero - -v18=part of src -*/ -ENTRY(__strcat_vx) - .machine "z13" - .machinemode "zarch_nohighgprs" - - lgr %r0,%r2 /* Save destination pointer for return. */ - - /* STRLEN - r1 = loaded bytes (tmp) - r4 = zero byte index (tmp) - r2 = dst - */ - vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */ - lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */ - - vfenezb %v16,%v16,%v16 /* Find element not equal with zero search. */ - vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */ - clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */ - - /* Align s to 16 byte. */ - risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ - lghi %r5,16 /* current_len = 16. */ - slr %r5,%r1 /* Compute bytes to 16bytes boundary. */ - - /* Find zero in 16byte aligned loop. */ -.Llen_loop: - vl %v16,0(%r5,%r2) /* Load s. */ - vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */ - je .Llen_found /* Jump away if zero was found. */ - vl %v16,16(%r5,%r2) - vfenezbs %v16,%v16,%v16 - je .Llen_found16 - vl %v16,32(%r5,%r2) - vfenezbs %v16,%v16,%v16 - je .Llen_found32 - vl %v16,48(%r5,%r2) - vfenezbs %v16,%v16,%v16 - je .Llen_found48 - - aghi %r5,64 - j .Llen_loop /* No zero -> loop. */ - -.Llen_found48: - aghi %r5,16 -.Llen_found32: - aghi %r5,16 -.Llen_found16: - aghi %r5,16 -.Llen_found: - vlgvb %r4,%v16,7 /* Load byte index of zero. */ - algr %r5,%r4 - -.Llen_end: - /* STRCPY - %r1 = loaded bytes (tmp) - %r4 = zero byte index (tmp) - %r3 = curr src pointer - %r2 = curr dst pointer - */ - la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */ - - vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */ - lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */ - - vfenezb %v17,%v16,%v16 /* Find element not equal with zero search. */ - vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */ - clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes, - copy bytes before and return. */ - - /* Align s to 16 byte. */ - risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ - lghi %r5,15 /* current_len = 15. */ - slr %r5,%r4 /* Compute highest index to 16byte boundary. */ - - vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */ - ahi %r5,1 /* Start loop at next character. */ - - /* Find zero in 16byte aligned loop. */ -.Lcpy_loop: - vl %v16,0(%r5,%r3) /* Load s. */ - vfenezbs %v17,%v16,%v16 /* Find element not equal with zero search. */ - je .Lcpy_found_v16_0 /* Jump away if zero was found. */ - vl %v18,16(%r5,%r3)/* Load next part of s. */ - vst %v16,0(%r5,%r2) /* Store previous part without zero to dst. */ - vfenezbs %v17,%v18,%v18 - je .Lcpy_found_v18_16 - vl %v16,32(%r5,%r3) - vst %v18,16(%r5,%r2) - vfenezbs %v17,%v16,%v16 - je .Lcpy_found_v16_32 - vl %v18,48(%r5,%r3) - vst %v16,32(%r5,%r2) - vfenezbs %v17,%v18,%v18 - je .Lcpy_found_v18_48 - vst %v18,48(%r5,%r2) - - aghi %r5,64 - j .Lcpy_loop /* No zero -> loop. */ - -.Lcpy_found_v16_32: - aghi %r5,32 -.Lcpy_found_v16_0: - la %r4,0(%r5,%r2) - vlgvb %r1,%v17,7 /* Load byte index of zero. */ - vstl %v16,%r1,0(%r4) /* Copy characters including zero. */ - lgr %r2,%r0 /* Load saved dest-ptr. */ - br %r14 - -.Lcpy_found_v18_48: - aghi %r5,32 -.Lcpy_found_v18_16: - la %r4,16(%r5,%r2) - vlgvb %r1,%v17,7 /* Load byte index of zero. */ - vstl %v18,%r1,0(%r4) /* Copy characters including zero. */ - lgr %r2,%r0 /* Load saved dest-ptr. */ - br %r14 - -.Lcpy_found_align: - vstl %v16,%r5,0(%r2) /* Copy characters including zero. */ - lgr %r2,%r0 /* Load saved dest-ptr. */ - br %r14 -END(__strcat_vx) -#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ |