diff options
Diffstat (limited to 'sysdeps/s390/multiarch/rawmemchr-vx.S')
| -rw-r--r-- | sysdeps/s390/multiarch/rawmemchr-vx.S | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/sysdeps/s390/multiarch/rawmemchr-vx.S b/sysdeps/s390/multiarch/rawmemchr-vx.S deleted file mode 100644 index e2ac9a88e1..0000000000 --- a/sysdeps/s390/multiarch/rawmemchr-vx.S +++ /dev/null @@ -1,92 +0,0 @@ -/* Vector optimized 32/64 bit S/390 version of rawmemchr. - 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 - -/* void *rawmemchr (const void *s, int c) - Scans memory for character c - and returns pointer to first c. - - Register usage: - -r1=tmp - -r2=s - -r3=c - -r4=tmp - -r5=current_len - -v16=part of s - -v17=index of unequal - -v18=c replicated -*/ -ENTRY(__rawmemchr_vx) - .machine "z13" - .machinemode "zarch_nohighgprs" - - 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. */ - - vlvgb %v18,%r3,0 /* Generate vector which elements are all c. - If c > 255, c will be truncated. */ - vrepb %v18,%v18,0 - - vfeeb %v17,%v16,%v18 /* Vector find element equal. */ - vlgvb %r5,%v17,7 /* Load byte index of character or zero. */ - clrjl %r5,%r1,.Lend_found /* If found c is in 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 - slr %r5,%r1 /* Compute bytes to 16bytes boundary. */ - - /* Find c in a 16byte aligned loop. */ -.Lloop: - vl %v16,0(%r5,%r2) /* Load s. */ - vfeebs %v17,%v16,%v18 /* Vector find element equal. */ - jno .Lcharacter /* Jump away if element found. */ - vl %v16,16(%r5,%r2) - vfeebs %v17,%v16,%v18 - jno .Lcharacter16 - vl %v16,32(%r5,%r2) - vfeebs %v17,%v16,%v18 - jno .Lcharacter32 - vl %v16,48(%r5,%r2) - vfeebs %v17,%v16,%v18 - jno .Lcharacter48 - - aghi %r5,64 - j .Lloop /* No character found -> loop. */ - - /* Found character. */ -.Lcharacter48: - aghi %r5,16 -.Lcharacter32: - aghi %r5,16 -.Lcharacter16: - aghi %r5,16 -.Lcharacter: - vlgvb %r1,%v17,7 /* Load byte index of character. */ - algr %r5,%r1 -.Lend_found: - la %r2,0(%r5,%r2) /* Return pointer to character. */ - br %r14 -END(__rawmemchr_vx) -#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ |