From: Roland McGrath <roland@hack.frob.com>
To: Joseph Myers <joseph@codesourcery.com>
Cc: libc-ports@sourceware.org
Subject: [PATCH roland/arm-avoid-r9] ARM: Use r10 instead of r9.
Date: Mon, 11 Mar 2013 18:07:00 -0000 [thread overview]
Message-ID: <20130311180740.582382C08D@topped-with-meat.com> (raw)
Updated for current trunk. No regressions on armv7l-linux-gnueabihf.
OK now?
Thanks,
Roland
ports/ChangeLog.arm
* sysdeps/arm/memcpy.S: Use r10 instead of r9.
* sysdeps/arm/memmove.S: Likewise.
--- a/ports/sysdeps/arm/memcpy.S
+++ b/ports/sysdeps/arm/memcpy.S
@@ -189,13 +189,13 @@ ENTRY(memcpy)
CALGN( subcc r2, r2, ip )
CALGN( bcc 15f )
-11: push {r5 - r9}
+11: push {r5 - r8, r10}
cfi_adjust_cfa_offset (20)
cfi_rel_offset (r5, 0)
cfi_rel_offset (r6, 4)
cfi_rel_offset (r7, 8)
cfi_rel_offset (r8, 12)
- cfi_rel_offset (r9, 16)
+ cfi_rel_offset (r10, 16)
PLD( pld [r1, #0] )
PLD( subs r2, r2, #96 )
@@ -208,7 +208,7 @@ ENTRY(memcpy)
13: ldmia r1!, {r4, r5, r6, r7}
mov r3, lr, PULL #\pull
subs r2, r2, #32
- ldmia r1!, {r8, r9, ip, lr}
+ ldmia r1!, {r8, r10, ip, lr}
orr r3, r3, r4, PUSH #\push
mov r4, r4, PULL #\pull
orr r4, r4, r5, PUSH #\push
@@ -219,23 +219,23 @@ ENTRY(memcpy)
mov r7, r7, PULL #\pull
orr r7, r7, r8, PUSH #\push
mov r8, r8, PULL #\pull
- orr r8, r8, r9, PUSH #\push
- mov r9, r9, PULL #\pull
- orr r9, r9, ip, PUSH #\push
+ orr r8, r8, r10, PUSH #\push
+ mov r10, r10, PULL #\pull
+ orr r10, r10, ip, PUSH #\push
mov ip, ip, PULL #\pull
orr ip, ip, lr, PUSH #\push
- stmia r0!, {r3, r4, r5, r6, r7, r8, r9, ip}
+ stmia r0!, {r3, r4, r5, r6, r7, r8, r10, ip}
bge 12b
PLD( cmn r2, #96 )
PLD( bge 13b )
- pop {r5 - r9}
+ pop {r5 - r8, r10}
cfi_adjust_cfa_offset (-20)
cfi_restore (r5)
cfi_restore (r6)
cfi_restore (r7)
cfi_restore (r8)
- cfi_restore (r9)
+ cfi_restore (r10)
14: ands ip, r2, #28
beq 16f
--- a/ports/sysdeps/arm/memmove.S
+++ b/ports/sysdeps/arm/memmove.S
@@ -204,13 +204,13 @@ ENTRY(memmove)
CALGN( subcc r2, r2, ip )
CALGN( bcc 15f )
-11: push {r5 - r9}
+11: push {r5 - r8, r10}
cfi_adjust_cfa_offset (20)
cfi_rel_offset (r5, 0)
cfi_rel_offset (r6, 4)
cfi_rel_offset (r7, 8)
cfi_rel_offset (r8, 12)
- cfi_rel_offset (r9, 16)
+ cfi_rel_offset (r10, 16)
PLD( pld [r1, #-4] )
PLD( subs r2, r2, #96 )
@@ -220,15 +220,15 @@ ENTRY(memmove)
PLD( pld [r1, #-96] )
12: PLD( pld [r1, #-128] )
-13: ldmdb r1!, {r7, r8, r9, ip}
+13: ldmdb r1!, {r7, r8, r10, ip}
mov lr, r3, PUSH #\push
subs r2, r2, #32
ldmdb r1!, {r3, r4, r5, r6}
orr lr, lr, ip, PULL #\pull
mov ip, ip, PUSH #\push
- orr ip, ip, r9, PULL #\pull
- mov r9, r9, PUSH #\push
- orr r9, r9, r8, PULL #\pull
+ orr ip, ip, r10, PULL #\pull
+ mov r10, r10, PUSH #\push
+ orr r10, r10, r8, PULL #\pull
mov r8, r8, PUSH #\push
orr r8, r8, r7, PULL #\pull
mov r7, r7, PUSH #\push
@@ -239,18 +239,18 @@ ENTRY(memmove)
orr r5, r5, r4, PULL #\pull
mov r4, r4, PUSH #\push
orr r4, r4, r3, PULL #\pull
- stmdb r0!, {r4 - r9, ip, lr}
+ stmdb r0!, {r4 - r8, r10, ip, lr}
bge 12b
PLD( cmn r2, #96 )
PLD( bge 13b )
- pop {r5 - r9}
+ pop {r5 - r8, r10}
cfi_adjust_cfa_offset (-20)
cfi_restore (r5)
cfi_restore (r6)
cfi_restore (r7)
cfi_restore (r8)
- cfi_restore (r9)
+ cfi_restore (r10)
14: ands ip, r2, #28
beq 16f
next reply other threads:[~2013-03-11 18:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-11 18:07 Roland McGrath [this message]
2013-03-11 23:35 ` Joseph S. Myers
-- strict thread matches above, loose matches on Subject: below --
2013-02-28 1:01 Roland McGrath
2013-02-28 16:54 ` Joseph S. Myers
2013-02-28 21:16 ` Roland McGrath
2013-02-28 21:23 ` Joseph S. Myers
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