diff options
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 |