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| author | Ulrich Drepper <drepper@redhat.com> | 2003-11-19 06:12:51 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-11-19 06:12:51 +0000 |
| commit | c9002c1b7a648fe49b8472d6dc6724c78fa1329f (patch) | |
| tree | b9a61d0ea66ac08f3bc064d1ddd8823a3e65ebba /sysdeps/ia64/memcpy.S | |
| parent | ad7f28c29d06ddb4506d0d75e089732740b5bd2b (diff) | |
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Update.
2003-11-14 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h
(GAS_ALIGN_BREAKS_UNWIND_INFO): Define this macro to indicate
that all existing GAS versions have a problem with .align inside
a function.
* sysdeps/ia64/memccpy.S: Work around GAS_ALIGN_BREAKS_UNWIND_INFO bug.
* sysdeps/ia64/memcpy.S: Likewise.
* sysdeps/ia64/memset.S: Likewise.
* sysdeps/ia64/memmove.S: Likewise. Also move the jump-table to
out of .text into .rodata, where it belongs.
* sysdeps/unix/sysv/linux/ia64/pipe.S: There is no need to
save/restore input-arguments, because they're necessarily
preserved by the kernel to support syscall-restart.
Diffstat (limited to 'sysdeps/ia64/memcpy.S')
| -rw-r--r-- | sysdeps/ia64/memcpy.S | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/sysdeps/ia64/memcpy.S b/sysdeps/ia64/memcpy.S index 7471bdbc12..a2aeea00fd 100644 --- a/sysdeps/ia64/memcpy.S +++ b/sysdeps/ia64/memcpy.S @@ -103,14 +103,22 @@ #define the_z z #endif +#ifdef GAS_ALIGN_BREAKS_UNWIND_INFO +/* Manually force proper loop-alignment. Note: be sure to + double-check the code-layout after making any changes to + this routine! */ +# define ALIGN(n) { nop 0 } +#else +# define ALIGN(n) .align n +#endif #if defined(USE_LFETCH) #define LOOP(shift) \ - .align 32 ; \ + ALIGN(32); \ .loop##shift##: \ { .mmb \ (p[0]) ld8.nt1 r[0] = [asrc], 8 ; \ -(p[0]) lfetch.nt1 [ptr1], 16 ; \ +(p[0]) lfetch.nt1 [ptr1], 16 ; \ nop.b 0 ; \ } { .mib \ (p[MEMLAT+1]) st8 [dest] = tmp3, 8 ; \ @@ -118,7 +126,7 @@ nop.b 0 ;; \ } { .mmb \ (p[0]) ld8.nt1 s[0] = [asrc], 8 ; \ -(p[0]) lfetch.nt1 [ptr2], 16 ; \ +(p[0]) lfetch.nt1 [ptr2], 16 ; \ nop.b 0 ; \ } { .mib \ (p[MEMLAT+1]) st8 [dest] = tmp4, 8 ; \ @@ -130,7 +138,7 @@ } #else #define LOOP(shift) \ - .align 32 ; \ + ALIGN(32); \ .loop##shift##: \ { .mmb \ (p[0]) ld8.nt1 r[0] = [asrc], 8 ; \ @@ -254,7 +262,11 @@ ENTRY(memcpy) movi0 ar.lc = loopcnt // set the loop counter ;; } +#ifdef GAS_ALIGN_BREAKS_UNWIND_INFO + { nop 0 } +#else .align 32 +#endif #if defined(USE_FLP) .l1: // ------------------------------- // L1: Everything a multiple of 8 { .mmi |