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| author | Eric Botcazou <ebotcazou@adacore.com> | 2011-05-21 22:49:05 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2011-05-21 22:49:05 +0000 |
| commit | abd9a770ee9842322f245639881a4955c8d2258b (patch) | |
| tree | 5d8787561526867d0b4b549db5b50814501ced81 /gcc | |
| parent | bd9a3248ab251b7ba3560b80e589cd55e05a5a8d (diff) | |
| download | gcc-abd9a770ee9842322f245639881a4955c8d2258b.zip gcc-abd9a770ee9842322f245639881a4955c8d2258b.tar.gz gcc-abd9a770ee9842322f245639881a4955c8d2258b.tar.bz2 | |
sparc.md (setjmp): Handle PIC mode and use the hard frame pointer.
* config/sparc/sparc.md (setjmp): Handle PIC mode and use the hard
frame pointer.
From-SVN: r174013
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sparc/sparc.md | 19 |
2 files changed, 18 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5cbd9f8..80233d7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2011-05-21 Eric Botcazou <ebotcazou@adacore.com> + * config/sparc/sparc.md (setjmp): Handle PIC mode and use the hard + frame pointer. + +2011-05-21 Eric Botcazou <ebotcazou@adacore.com> + * config/sparc/sparc.c (eligible_for_return_delay): Do not return false if there are call-saved registers here... (sparc_can_use_return_insn_p): ...but here instead. diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md index 853bd2f..5e16179 100644 --- a/gcc/config/sparc/sparc.md +++ b/gcc/config/sparc/sparc.md @@ -6507,8 +6507,8 @@ (const_int 4)))]) ;; For __builtin_setjmp we need to flush register windows iff the function -;; calls alloca as well, because otherwise the register window might be -;; saved after %sp adjustment and thus setjmp would crash +;; calls alloca as well, because otherwise the current register window might +;; be saved after the %sp adjustment and thus setjmp would crash. (define_expand "builtin_setjmp_setup" [(match_operand 0 "register_operand" "r")] "" @@ -6547,19 +6547,26 @@ (eq_attr "pic" "true") (const_int 4)] (const_int 3)))]) -;; Pattern for use after a setjmp to store FP and the return register -;; into the stack area. +;; Pattern for use after a setjmp to store registers into the save area. (define_expand "setjmp" [(const_int 0)] "" { rtx mem; - + + if (flag_pic) + { + mem = gen_rtx_MEM (Pmode, + plus_constant (stack_pointer_rtx, + SPARC_STACK_BIAS + 7 * UNITS_PER_WORD)); + emit_insn (gen_rtx_SET (VOIDmode, mem, pic_offset_table_rtx)); + } + mem = gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, SPARC_STACK_BIAS + 14 * UNITS_PER_WORD)); - emit_insn (gen_rtx_SET (VOIDmode, mem, frame_pointer_rtx)); + emit_insn (gen_rtx_SET (VOIDmode, mem, hard_frame_pointer_rtx)); mem = gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, |