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2000-12-07  Dan Pop  <Dan.Pop@cern.ch>

	* sysdeps/ia64/strcpy.S: Fix a bug in a recovery code sequence.
This commit is contained in:
Ulrich Drepper
2000-12-07 05:22:24 +00:00
parent e3690263f5
commit 4e9b4067d7
2 changed files with 11 additions and 7 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2000-12-07 Dan Pop <Dan.Pop@cern.ch>
* sysdeps/ia64/strcpy.S: Fix a bug in a recovery code sequence.
2000-12-06 Ulrich Drepper <drepper@redhat.com> 2000-12-06 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/aix/Makefile [$(subdir)==misc] * sysdeps/unix/sysv/aix/Makefile [$(subdir)==misc]

14
sysdeps/ia64/strcpy.S
View File

@ -73,10 +73,10 @@ ENTRY(strcpy)
.l1: // copy -dest % 8 bytes .l1: // copy -dest % 8 bytes
ld1 c = [src], 1 // c = *src++ ld1 c = [src], 1 // c = *src++
;; ;;
st1 [dest] = c, 1 // *dest++ = c st1 [dest] = c, 1 // *dest++ = c
cmp.eq p6, p0 = c, r0 cmp.eq p6, p0 = c, r0
(p6) br.cond.dpnt .restore_and_exit (p6) br.cond.dpnt .restore_and_exit
br.cloop.dptk .l1 ;; br.cloop.dptk .l1 ;;
.dest_aligned: .dest_aligned:
and sh1 = 7, src // sh1 = src % 8 and sh1 = 7, src // sh1 = src % 8
mov ar.lc = -1 // "infinite" loop mov ar.lc = -1 // "infinite" loop
@ -89,10 +89,10 @@ ENTRY(strcpy)
cmp.eq p6, p0 = sh1, r0 // is the src aligned? cmp.eq p6, p0 = sh1, r0 // is the src aligned?
(p6) br.cond.sptk .src_aligned ;; (p6) br.cond.sptk .src_aligned ;;
ld8 r[1] = [asrc],8 ;; ld8 r[1] = [asrc],8 ;;
.align 32 .align 32
.l2: .l2:
ld8.s r[0] = [asrc], 8 ld8.s r[0] = [asrc], 8
shr.u value = r[1], sh1 ;; // value = w0 >> sh1 shr.u value = r[1], sh1 ;; // value = w0 >> sh1
czx1.r pos = value ;; // do we have an "early" zero czx1.r pos = value ;; // do we have an "early" zero
cmp.lt p7, p0 = pos, thresh // in w0 >> sh1? cmp.lt p7, p0 = pos, thresh // in w0 >> sh1?
@ -112,7 +112,7 @@ ENTRY(strcpy)
(p[0]) ld8.s r[0] = [src], 8 (p[0]) ld8.s r[0] = [src], 8
(p[MEMLAT]) chk.s r[MEMLAT], .recovery3 (p[MEMLAT]) chk.s r[MEMLAT], .recovery3
.back3: .back3:
(p[MEMLAT]) mov value = r[MEMLAT] (p[MEMLAT]) mov value = r[MEMLAT]
(p[MEMLAT]) czx1.r pos = r[MEMLAT] ;; (p[MEMLAT]) czx1.r pos = r[MEMLAT] ;;
(p[MEMLAT]) cmp.ne p7, p0 = 8, pos (p[MEMLAT]) cmp.ne p7, p0 = 8, pos
(p7) br.cond.dpnt .found0 (p7) br.cond.dpnt .found0
@ -133,7 +133,7 @@ ENTRY(strcpy)
br.ret.sptk.many b0 br.ret.sptk.many b0
.recovery2: .recovery2:
add tmp = -8, asrc ;; add tmp = -8, asrc ;;
ld8 r[MEMLAT] = [tmp] ld8 r[0] = [tmp]
br.cond.sptk .back2 br.cond.sptk .back2
.recovery3: .recovery3:
add tmp = -(MEMLAT + 1) * 8, src ;; add tmp = -(MEMLAT + 1) * 8, src ;;