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| author | Ulrich Drepper <drepper@redhat.com> | 2002-09-05 10:28:51 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-09-05 10:28:51 +0000 |
| commit | 92b27c7470ca2844e4e1265746cb56ad1f664df3 (patch) | |
| tree | 989027a0a57d82034206d3e2bbb7a4151dd2e24f /sysdeps/powerpc/powerpc32/lshift.S | |
| parent | 75e4a282218ce382d0fb3ff1ffef2108dd84fcce (diff) | |
| download | glibc-92b27c7470ca2844e4e1265746cb56ad1f664df3.tar.gz glibc-92b27c7470ca2844e4e1265746cb56ad1f664df3.tar.xz glibc-92b27c7470ca2844e4e1265746cb56ad1f664df3.zip | |
Update.
2002-07-29 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/__longjmp.S: Moved to... * sysdeps/powerpc/powerpc32/__longjmp.S: ...here. * sysdeps/powerpc/add_n.S: Moved to... * sysdeps/powerpc/powerpc32/add_n.S: ...here. * sysdeps/powerpc/addmul_1.S: Moved to... * sysdeps/powerpc/powerpc32/addmul_1.S: ...here. * sysdeps/powerpc/atomicity.h: Moved to... * sysdeps/powerpc/powerpc32/atomicity.h: ...here. * sysdeps/powerpc/backtrace.c: Moved to... * sysdeps/powerpc/powerpc32/backtrace.c: ...here. * sysdeps/powerpc/bp-asm.h: Moved to... * sysdeps/powerpc/powerpc32/bp-asm.h: ...here. * sysdeps/powerpc/bsd-_setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/bsd-_setjmp.S: ...here. * sysdeps/powerpc/bsd-setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/bsd-setjmp.S: ...here. * sysdeps/powerpc/dl-machine.c: Moved to... * sysdeps/powerpc/powerpc32/dl-machine.c: ...here. * sysdeps/powerpc/dl-machine.h: Moved to... * sysdeps/powerpc/powerpc32/dl-machine.h: ...here. * sysdeps/powerpc/dl-start.S: Moved to... * sysdeps/powerpc/powerpc32/dl-start.S: ...here. * sysdeps/powerpc/gprrest0.S: Moved to... * sysdeps/powerpc/powerpc32/gprrest0.S: ...here. * sysdeps/powerpc/gprrest1.S: Moved to... * sysdeps/powerpc/powerpc32/gprrest1.S: ...here. * sysdeps/powerpc/gprsave0.S: Moved to... * sysdeps/powerpc/powerpc32/gprsave0.S: ...here. * sysdeps/powerpc/gprsave1.S: Moved to... * sysdeps/powerpc/powerpc32/gprsave1.S: ...here. * sysdeps/powerpc/lshift.S: Moved to... * sysdeps/powerpc/powerpc32/lshift.S: ...here. * sysdeps/powerpc/memset.S: Moved to... * sysdeps/powerpc/powerpc32/memset.S: ...here. * sysdeps/powerpc/mul_1.S: Moved to... * sysdeps/powerpc/powerpc32/mul_1.S: ...here. * sysdeps/powerpc/ppc-mcount.S: Moved to... * sysdeps/powerpc/powerpc32/ppc-mcount.S: ...here. * sysdeps/powerpc/register-dump.h: Moved to... * sysdeps/powerpc/powerpc32/register-dump.h: ...here. * sysdeps/powerpc/rshift.S: Moved to... * sysdeps/powerpc/powerpc32/rshift.S: ...here. * sysdeps/powerpc/setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/setjmp.S: ...here. * sysdeps/powerpc/stpcpy.S: Moved to... * sysdeps/powerpc/powerpc32/stpcpy.S: ...here. * sysdeps/powerpc/strchr.S: Moved to... * sysdeps/powerpc/powerpc32/strchr.S: ...here. * sysdeps/powerpc/strcmp.S: Moved to... * sysdeps/powerpc/powerpc32/strcmp.S: ...here. * sysdeps/powerpc/strcpy.S: Moved to... * sysdeps/powerpc/powerpc32/strcpy.S: ...here. * sysdeps/powerpc/strlen.S: Moved to... * sysdeps/powerpc/powerpc32/strlen.S: ...here. * sysdeps/powerpc/sub_n.S: Moved to... * sysdeps/powerpc/powerpc32/sub_n.S: ...here. * sysdeps/powerpc/submul_1.S: Moved to... * sysdeps/powerpc/powerpc32/submul_1.S: ...here. * sysdeps/powerpc/elf/bzero.S: Moved to... * sysdeps/powerpc/powerpc32/elf/bzero.S: ...here. * sysdeps/powerpc/elf/start.S: Moved to... * sysdeps/powerpc/powerpc32/elf/start.S: ...here. * sysdeps/powerpc/fpu/__longjmp.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/__longjmp.S: ...here. * sysdeps/powerpc/fpu/fprrest.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/fprrest.S: ...here. * sysdeps/powerpc/fpu/fprsave.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/fprsave.S: ...here. * sysdeps/powerpc/fpu/setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/setjmp.S: ...here. * sysdeps/powerpc/fpu/s_copysign.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/s_copysign.S: ...here. * sysdeps/powerpc/fpu/s_copysignf.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: ...here. * sysdeps/unix/sysv/linux/powerpc/brk.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: ...here. * sysdeps/unix/sysv/linux/powerpc/clone.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: ...here. * sysdeps/unix/sysv/linux/powerpc/glob64.c: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c: ...here. * sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: ...here. * sysdeps/unix/sysv/linux/powerpc/socket.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S: ...here. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: ...here. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: ...here. Support PowerPC64. Separate powerpc into powerpc/powerpc32 and powerpc/powerpc64. 2002-07-29 Steven Munroe <sjmunroe@us.ibm.com> * FAQ.in: Add powerpc64 to supported targets list. Also state the minimum gcc version is 3.2 * README: Add powerpc64 to supported targets list. * configure.in: Change machine=powerpc to machine=powerpc/powerpc32. Add powerpc64 and machine=powerpc/powerpc64. (HAVE_ASM_GLOBAL_DOT_NAME): Define if linux*powerpc/powerpc64*. * shlib-versions: Set DEFAULT version to 2.2.5 for powerpc64. * sysdeps/powerpc/Dist: Remove dl-machine.c, dl-start.S, ppc-mcount.S, gprsave1.S, gprsave0.S, gprrest1.S, and gprrest0.S. * sysdeps/powerpc/powerpc32/Dist: New file. * sysdeps/powerpc/Implies: Remove wordsize-32 and powerpc/soft-fp. * sysdeps/powerpc/powerpc32/Implies: New file. * sysdeps/powerpc/Makefile(cflags): Remove powerpc32 specific cflags. ($(with-fp) = no): Move test to powerpc32/Makefile. ($(subdir) = misc): Move to powerpc32/Makefile. ($(build-shared) = yes): Move to powerpc32/Makefile. ($(subdir) = csu): Move to powerpc32/Makefile. (sysdep-rtld-routines): Remove dl-start. Moved these bits to ... * sysdeps/powerpc/powerpc32/Makefile: New file. * sysdeps/powerpc/Versions: Remove libgcc functions. * sysdeps/powerpc/powerpc32/Versions: New file. * sysdeps/powerpc/fpu/Makefile: Remove fprsave and fprrest. * sysdeps/powerpc/powerpc32/fpu/Makefile: New file. * sysdeps/unix/sysv/linux/configure.in (powerpc*): Set arch_minimum_kernel=2.4.19 for powerpc/powerpc64. Also set libc_cv_gcc_unwind_find_fde=yes only if !powerpc/powerpc64. ($machine): Add powerpc/powerpc64 to if ... | for libc_cv_slibdir=/libc64. (powerpc*): Set ldd_rewrite_script. * sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed: New file. * sysdeps/unix/sysv/linux/powerpc/Dist: Remove clone.S. * sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: New file. Add clone.S. * sysdeps/unix/sysv/linux/powerpc/Makefile: Remove oldgetrlimit64. * sysdeps/unix/sysv/linux/powerpc/Versions: Remove GLIBC_2.0 functions. Remove GLIBC_2.2 functions except getrlimit and setrlimit. Moved them to ... * sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions: New file. 2002-09-04 Ulrich Drepper <drepper@redhat.com> * libio/tst-atime.c: Include <errno.h>. (do_test): Only perform fstatvfs check if ST_NOATIME is defined. 2002-09-03 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regcomp.c (regcomp): Append "__restrict" modifier to avoid warnings of some compilers. (build_collating_symbol): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (build_collating_symbol): Likewise. (build_equiv_class): Likewise. (build_charclass): Likewise. (re_compile_pattern): Remove incorrect cast. (re_compile_fastmap_iter): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (parse_bracket_exp): Likewise. * posix/regex_internal.c (re_string_construct_common): Likewise. (re_string_allocate): Likewise. (re_string_construct): Likewise. (re_string_realloc_buffers): Likewise. (build_wcs_buffer): Likewise. (re_string_reconstruct): Likewise. * posix/regex_internal.h: Change the type of characters in re_string_t and bracket_elem_t from "unsigned char" to "char". * posix/regexec.c (regexec): Append "__restrict" modifier to avoid warnings of some compilers. (transit_state_bkref_loop): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (check_node_accept_bytes): Likewise. (find_collation_sequence_value): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/lshift.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/lshift.S | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/lshift.S b/sysdeps/powerpc/powerpc32/lshift.S new file mode 100644 index 0000000000..9f5870d828 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/lshift.S @@ -0,0 +1,131 @@ +/* Shift a limb left, low level routine. + Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <bp-sym.h> +#include <bp-asm.h> + +/* mp_limb_t mpn_lshift (mp_ptr wp, mp_srcptr up, mp_size_t usize, + unsigned int cnt) */ + +EALIGN (BP_SYM (__mpn_lshift), 3, 0) + +#if __BOUNDED_POINTERS__ + slwi r10,r5,2 /* convert limbs to bytes */ + CHECK_BOUNDS_BOTH_WIDE (r3, r8, r9, r10) + CHECK_BOUNDS_BOTH_WIDE (r4, r8, r9, r10) +#endif + mtctr r5 # copy size into CTR + cmplwi cr0,r5,16 # is size < 16 + slwi r0,r5,2 + add r7,r3,r0 # make r7 point at end of res + add r4,r4,r0 # make r4 point at end of s1 + lwzu r11,-4(r4) # load first s1 limb + subfic r8,r6,32 + srw r3,r11,r8 # compute function return value + bge cr0,L(big) # branch if size >= 16 + + bdz L(end1) + +L(0): lwzu r10,-4(r4) + slw r9,r11,r6 + srw r12,r10,r8 + or r9,r9,r12 + stwu r9,-4(r7) + bdz L(end2) + lwzu r11,-4(r4) + slw r9,r10,r6 + srw r12,r11,r8 + or r9,r9,r12 + stwu r9,-4(r7) + bdnz L(0) + +L(end1):slw r0,r11,r6 + stw r0,-4(r7) + blr + + +/* Guaranteed not to succeed. */ +L(boom): tweq r0,r0 + +/* We imitate a case statement, by using (yuk!) fixed-length code chunks, + of size 4*12 bytes. We have to do this (or something) to make this PIC. */ +L(big): mflr r9 + bltl- cr0,L(boom) # Never taken, only used to set LR. + slwi r10,r6,4 + mflr r12 + add r10,r12,r10 + slwi r8,r6,5 + add r10,r8,r10 + mtctr r10 + addi r5,r5,-1 + mtlr r9 + bctr + +L(end2):slw r0,r10,r6 + stw r0,-4(r7) + blr + +#define DO_LSHIFT(n) \ + mtctr r5; \ +L(n): lwzu r10,-4(r4); \ + slwi r9,r11,n; \ + inslwi r9,r10,n,32-n; \ + stwu r9,-4(r7); \ + bdz- L(end2); \ + lwzu r11,-4(r4); \ + slwi r9,r10,n; \ + inslwi r9,r11,n,32-n; \ + stwu r9,-4(r7); \ + bdnz L(n); \ + b L(end1) + + DO_LSHIFT(1) + DO_LSHIFT(2) + DO_LSHIFT(3) + DO_LSHIFT(4) + DO_LSHIFT(5) + DO_LSHIFT(6) + DO_LSHIFT(7) + DO_LSHIFT(8) + DO_LSHIFT(9) + DO_LSHIFT(10) + DO_LSHIFT(11) + DO_LSHIFT(12) + DO_LSHIFT(13) + DO_LSHIFT(14) + DO_LSHIFT(15) + DO_LSHIFT(16) + DO_LSHIFT(17) + DO_LSHIFT(18) + DO_LSHIFT(19) + DO_LSHIFT(20) + DO_LSHIFT(21) + DO_LSHIFT(22) + DO_LSHIFT(23) + DO_LSHIFT(24) + DO_LSHIFT(25) + DO_LSHIFT(26) + DO_LSHIFT(27) + DO_LSHIFT(28) + DO_LSHIFT(29) + DO_LSHIFT(30) + DO_LSHIFT(31) + +END (BP_SYM (__mpn_lshift)) |