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Diffstat (limited to 'contrib/gcc/config/rs6000/darwin-world.asm')
| -rw-r--r-- | contrib/gcc/config/rs6000/darwin-world.asm | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/contrib/gcc/config/rs6000/darwin-world.asm b/contrib/gcc/config/rs6000/darwin-world.asm deleted file mode 100644 index 7ff51b51f117..000000000000 --- a/contrib/gcc/config/rs6000/darwin-world.asm +++ /dev/null @@ -1,269 +0,0 @@ -/* This file contains the exception-handling save_world and - * restore_world routines, which need to do a run-time check to see if - * they should save and restore the vector registers. - * - * Copyright (C) 2004 Free Software Foundation, Inc. - * - * This file is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * In addition to the permissions in the GNU General Public License, the - * Free Software Foundation gives you unlimited permission to link the - * compiled version of this file with other programs, and to distribute - * those programs without any restriction coming from the use of this - * file. (The General Public License restrictions do apply in other - * respects; for example, they cover modification of the file, and - * distribution when not linked into another program.) - * - * This file 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 - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - * As a special exception, if you link this library with files - * compiled with GCC to produce an executable, this does not cause the - * resulting executable to be covered by the GNU General Public License. - * This exception does not however invalidate any other reasons why the - * executable file might be covered by the GNU General Public License. - */ - - .machine ppc7400 -.data - .align 2 - -#ifdef __DYNAMIC__ - -.non_lazy_symbol_pointer -L_has_vec$non_lazy_ptr: - .indirect_symbol __cpu_has_altivec -#ifdef __ppc64__ - .quad 0 -#else - .long 0 -#endif - -#else - -/* For static, "pretend" we have a non-lazy-pointer. */ - -L_has_vec$non_lazy_ptr: - .long __cpu_has_altivec - -#endif - - -.text - .align 2 - -/* save_world and rest_world save/restore F14-F31 and possibly V20-V31 - (assuming you have a CPU with vector registers; we use a global var - provided by the System Framework to determine this.) - - SAVE_WORLD takes R0 (the caller`s caller`s return address) and R11 - (the stack frame size) as parameters. It returns VRsave in R0 if - we`re on a CPU with vector regs. - - With gcc3, we now need to save and restore CR as well, since gcc3's - scheduled prologs can cause comparisons to be moved before calls to - save_world! - - USES: R0 R11 R12 */ - -.private_extern save_world -save_world: - stw r0,8(r1) - mflr r0 - bcl 20,31,Ls$pb -Ls$pb: mflr r12 - addis r12,r12,ha16(L_has_vec$non_lazy_ptr-Ls$pb) - lwz r12,lo16(L_has_vec$non_lazy_ptr-Ls$pb)(r12) - mtlr r0 - lwz r12,0(r12) - /* grab CR */ - mfcr r0 - /* test HAS_VEC */ - cmpwi r12,0 - stfd f14,-144(r1) - stfd f15,-136(r1) - stfd f16,-128(r1) - stfd f17,-120(r1) - stfd f18,-112(r1) - stfd f19,-104(r1) - stfd f20,-96(r1) - stfd f21,-88(r1) - stfd f22,-80(r1) - stfd f23,-72(r1) - stfd f24,-64(r1) - stfd f25,-56(r1) - stfd f26,-48(r1) - stfd f27,-40(r1) - stfd f28,-32(r1) - stfd f29,-24(r1) - stfd f30,-16(r1) - stfd f31,-8(r1) - stmw r13,-220(r1) - /* stash CR */ - stw r0,4(r1) - /* set R12 pointing at Vector Reg save area */ - addi r12,r1,-224 - /* allocate stack frame */ - stwux r1,r1,r11 - /* ...but return if HAS_VEC is zero */ - bne+ L$saveVMX - /* Not forgetting to restore CR. */ - mtcr r0 - blr - -L$saveVMX: - /* We're saving Vector regs too. */ - /* Restore CR from R0. No More Branches! */ - mtcr r0 - - /* We should really use VRSAVE to figure out which vector regs - we actually need to save and restore. Some other time :-/ */ - - li r11,-192 - stvx v20,r11,r12 - li r11,-176 - stvx v21,r11,r12 - li r11,-160 - stvx v22,r11,r12 - li r11,-144 - stvx v23,r11,r12 - li r11,-128 - stvx v24,r11,r12 - li r11,-112 - stvx v25,r11,r12 - li r11,-96 - stvx v26,r11,r12 - li r11,-80 - stvx v27,r11,r12 - li r11,-64 - stvx v28,r11,r12 - li r11,-48 - stvx v29,r11,r12 - li r11,-32 - stvx v30,r11,r12 - mfspr r0,VRsave - li r11,-16 - stvx v31,r11,r12 - /* VRsave lives at -224(R1) */ - stw r0,0(r12) - blr - - -/* eh_rest_world_r10 is jumped to, not called, so no need to worry about LR. - R10 is the C++ EH stack adjust parameter, we return to the caller`s caller. - - USES: R0 R10 R11 R12 and R7 R8 - RETURNS: C++ EH Data registers (R3 - R6.) - - We now set up R7/R8 and jump to rest_world_eh_r7r8. - - rest_world doesn't use the R10 stack adjust parameter, nor does it - pick up the R3-R6 exception handling stuff. */ - -.private_extern rest_world -rest_world: - /* Pickup previous SP */ - lwz r11, 0(r1) - li r7, 0 - lwz r8, 8(r11) - li r10, 0 - b rest_world_eh_r7r8 - -.private_extern eh_rest_world_r10 -eh_rest_world_r10: - /* Pickup previous SP */ - lwz r11, 0(r1) - mr r7,r10 - lwz r8, 8(r11) - /* pickup the C++ EH data regs (R3 - R6.) */ - lwz r6,-420(r11) - lwz r5,-424(r11) - lwz r4,-428(r11) - lwz r3,-432(r11) - - b rest_world_eh_r7r8 - -/* rest_world_eh_r7r8 is jumped to -- not called! -- when we're doing - the exception-handling epilog. R7 contains the offset to add to - the SP, and R8 contains the 'real' return address. - - USES: R0 R11 R12 [R7/R8] - RETURNS: C++ EH Data registers (R3 - R6.) */ - -rest_world_eh_r7r8: - bcl 20,31,Lr7r8$pb -Lr7r8$pb: mflr r12 - lwz r11,0(r1) - /* R11 := previous SP */ - addis r12,r12,ha16(L_has_vec$non_lazy_ptr-Lr7r8$pb) - lwz r12,lo16(L_has_vec$non_lazy_ptr-Lr7r8$pb)(r12) - lwz r0,4(r11) - /* R0 := old CR */ - lwz r12,0(r12) - /* R12 := HAS_VEC */ - mtcr r0 - cmpwi r12,0 - lmw r13,-220(r11) - beq L.rest_world_fp_eh - /* restore VRsave and V20..V31 */ - lwz r0,-224(r11) - li r12,-416 - mtspr VRsave,r0 - lvx v20,r11,r12 - li r12,-400 - lvx v21,r11,r12 - li r12,-384 - lvx v22,r11,r12 - li r12,-368 - lvx v23,r11,r12 - li r12,-352 - lvx v24,r11,r12 - li r12,-336 - lvx v25,r11,r12 - li r12,-320 - lvx v26,r11,r12 - li r12,-304 - lvx v27,r11,r12 - li r12,-288 - lvx v28,r11,r12 - li r12,-272 - lvx v29,r11,r12 - li r12,-256 - lvx v30,r11,r12 - li r12,-240 - lvx v31,r11,r12 - -L.rest_world_fp_eh: - lfd f14,-144(r11) - lfd f15,-136(r11) - lfd f16,-128(r11) - lfd f17,-120(r11) - lfd f18,-112(r11) - lfd f19,-104(r11) - lfd f20,-96(r11) - lfd f21,-88(r11) - lfd f22,-80(r11) - lfd f23,-72(r11) - lfd f24,-64(r11) - lfd f25,-56(r11) - lfd f26,-48(r11) - lfd f27,-40(r11) - lfd f28,-32(r11) - lfd f29,-24(r11) - lfd f30,-16(r11) - /* R8 is the exception-handler's address */ - mtctr r8 - lfd f31,-8(r11) - /* set SP to original value + R7 offset */ - add r1,r11,r7 - bctr |