diff options
Diffstat (limited to 'sysdeps/ia64/memcmp.S')
| -rw-r--r-- | sysdeps/ia64/memcmp.S | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sysdeps/ia64/memcmp.S b/sysdeps/ia64/memcmp.S index 2e4f2ec..c08f0d2 100644 --- a/sysdeps/ia64/memcmp.S +++ b/sysdeps/ia64/memcmp.S @@ -1,6 +1,6 @@ /* Optimized version of the standard memcmp() function. This file is part of the GNU C Library. - Copyright (C) 2000 Free Software Foundation, Inc. + Copyright (C) 2000, 2001 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 @@ -40,7 +40,6 @@ #define OPSIZ 8 #define MEMLAT 2 -#define saved_pfs r14 #define start r15 #define saved_pr r17 #define saved_lc r18 @@ -56,14 +55,18 @@ #define loopcnt r30 ENTRY(memcmp) - alloc saved_pfs = ar.pfs, 3, 37, 0, 40 + .prologue + alloc r2 = ar.pfs, 3, 37, 0, 40 .rotr r[MEMLAT + 2], q[MEMLAT + 5], tmp1[4], tmp2[4], val[2] .rotp p[MEMLAT + 4 + 1] mov ret0 = r0 // by default return value = 0 + .save pr, saved_pr mov saved_pr = pr // save the predicate registers + .save ar.lc, saved_lc mov saved_lc = ar.lc // save the loop counter + .body mov dest = in0 // dest mov src = in1 // src mov len = in2 // len @@ -126,7 +129,6 @@ ENTRY(memcmp) cmp.ltu p6, p7 = value2, value1 ;; (p6) mov ret0 = -1 (p7) mov ret0 = 1 - mov ar.pfs = saved_pfs // restore the PFS mov pr = saved_pr, -1 // restore the predicate registers mov ar.lc = saved_lc // restore the loop counter br.ret.sptk.many b0 @@ -154,7 +156,6 @@ ENTRY(memcmp) .done: (p6) sub ret0 = value2, value1 // don't execute it if falling thru .restore_and_exit: - mov ar.pfs = saved_pfs // restore the PFS mov pr = saved_pr, -1 // restore the predicate registers mov ar.lc = saved_lc // restore the loop counter br.ret.sptk.many b0 |