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authorUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
committerUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
commitd75a0a62b12c35ee85f786d5f8d155ab39909411 (patch)
treec3479d23878ef4ab05629d4a60f4f7623269c1dd /sysdeps/ia64/strchr.S
parentdcc9756b5bfbb2b97f73bad863d7e1c4002bea98 (diff)
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Remove IA-64 support
Diffstat (limited to 'sysdeps/ia64/strchr.S')
-rw-r--r--sysdeps/ia64/strchr.S112
1 files changed, 0 insertions, 112 deletions
diff --git a/sysdeps/ia64/strchr.S b/sysdeps/ia64/strchr.S
deleted file mode 100644
index 63db7ff..0000000
--- a/sysdeps/ia64/strchr.S
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Optimized version of the standard strchr() function.
- This file is part of the GNU C Library.
- Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
- Contributed by Dan Pop <Dan.Pop@cern.ch>.
-
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* Return: the address of the first occurence of chr in str or NULL
-
- Inputs:
- in0: str
- in1: chr
-
- A modified version of memchr.S, the search ends when the character is
- found or the terminating null character is encountered.
-
- This implementation assumes little endian mode. For big endian mode,
- the instruction czx1.r should be replaced by czx1.l. */
-
-#include <sysdep.h>
-#undef ret
-
-#define saved_lc r18
-#define poschr r19
-#define pos0 r20
-#define val1 r21
-#define val2 r22
-#define tmp r24
-#define chrx8 r25
-#define loopcnt r30
-
-#define str in0
-#define chr in1
-
-ENTRY(strchr)
- .prologue
- alloc r2 = ar.pfs, 2, 0, 0, 0
- .save ar.lc, saved_lc
- mov saved_lc = ar.lc // save the loop counter
- .body
- mov ret0 = str
- and tmp = 7, str // tmp = str % 8
- mux1 chrx8 = chr, @brcst
- extr.u chr = chr, 0, 8 // retain only the last byte
- cmp.ne p8, p0 = r0, r0 // clear p8
- ;;
- sub loopcnt = 8, tmp // loopcnt = 8 - tmp
- cmp.eq p6, p0 = tmp, r0
-(p6) br.cond.sptk .str_aligned;;
- adds loopcnt = -1, loopcnt;;
- mov ar.lc = loopcnt
-.l1:
- ld1 val2 = [ret0], 1
- ;;
- cmp.eq p6, p0 = val2, chr
- cmp.eq p7, p0 = val2, r0
-(p6) br.cond.spnt .restore_and_exit
-(p7) br.cond.spnt .notfound
- br.cloop.sptk .l1
-.str_aligned:
- ld8 val1 = [ret0], 8;;
- nop.b 0
- nop.b 0
-.l2:
- ld8.s val2 = [ret0], 8 // don't bomb out here
- czx1.r pos0 = val1
- xor tmp = val1, chrx8 // if val1 contains chr, tmp will
- ;; // contain a zero in its position
- czx1.r poschr = tmp
- cmp.ne p6, p0 = 8, pos0
- ;;
- cmp.ne p7, p0 = 8, poschr
-(p7) br.cond.spnt .foundit
-(p6) br.cond.spnt .notfound
- chk.s val2, .recovery
-.back:
- mov val1 = val2
- br.cond.dptk .l2
-.foundit:
-(p6) cmp.lt p8, p0 = pos0, poschr // we found chr and null in the word
-(p8) br.cond.spnt .notfound // null was found before chr
- add ret0 = ret0, poschr ;;
- adds ret0 = -15, ret0 ;; // should be -16, but we decrement
-.restore_and_exit: // ret0 in the next instruction
- adds ret0 = -1, ret0 // ret0 was pointing 1 char too far
- mov ar.lc = saved_lc // restore the loop counter
- br.ret.sptk.many b0
-.notfound:
- mov ret0 = r0 // return NULL if null was found
- mov ar.lc = saved_lc
- br.ret.sptk.many b0
-.recovery:
- adds ret0 = -8, ret0;;
- ld8 val2 = [ret0], 8 // bomb out here
- br.cond.sptk .back
-END(strchr)
-
-weak_alias (strchr, index)
-libc_hidden_builtin_def (strchr)