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| author | Anthony Green <green@moxielogic.com> | 2009-07-02 01:18:42 +0000 |
|---|---|---|
| committer | Anthony Green <green@gcc.gnu.org> | 2009-07-02 01:18:42 +0000 |
| commit | 9df748c0ca2682d3aee12c1819d5981fc5176c83 (patch) | |
| tree | d81d23335fb74f88ae451168cbb38a8234ab7fb3 /gcc/config | |
| parent | b0f0c817838b52f1c5a769d6a6b38be9669e7988 (diff) | |
| download | gcc-9df748c0ca2682d3aee12c1819d5981fc5176c83.zip gcc-9df748c0ca2682d3aee12c1819d5981fc5176c83.tar.gz gcc-9df748c0ca2682d3aee12c1819d5981fc5176c83.tar.bz2 | |
Tweak moxie prologue and epilogue code.
From-SVN: r149163
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/moxie/moxie.c | 58 | ||||
| -rw-r--r-- | gcc/config/moxie/moxie.md | 6 |
2 files changed, 37 insertions, 27 deletions
diff --git a/gcc/config/moxie/moxie.c b/gcc/config/moxie/moxie.c index 0ed8ad1..897717b 100644 --- a/gcc/config/moxie/moxie.c +++ b/gcc/config/moxie/moxie.c @@ -273,14 +273,25 @@ moxie_expand_prologue (void) if (cfun->machine->size_for_adjusting_sp > 0) { - insn = - emit_insn (gen_movsi (gen_rtx_REG (Pmode, MOXIE_R12), - GEN_INT (-cfun->machine->size_for_adjusting_sp))); - RTX_FRAME_RELATED_P (insn) = 1; - insn = emit_insn (gen_addsi3 (stack_pointer_rtx, - stack_pointer_rtx, - gen_rtx_REG (Pmode, MOXIE_R12))); - RTX_FRAME_RELATED_P (insn) = 1; + if (cfun->machine->size_for_adjusting_sp <= 255) + { + insn = emit_insn (gen_subsi3 (stack_pointer_rtx, + stack_pointer_rtx, + GEN_INT (cfun->machine->size_for_adjusting_sp))); + RTX_FRAME_RELATED_P (insn) = 1; + } + else + { + insn = + emit_insn (gen_movsi + (gen_rtx_REG (Pmode, MOXIE_R12), + GEN_INT (-cfun->machine->size_for_adjusting_sp))); + RTX_FRAME_RELATED_P (insn) = 1; + insn = emit_insn (gen_addsi3 (stack_pointer_rtx, + stack_pointer_rtx, + gen_rtx_REG (Pmode, MOXIE_R12))); + RTX_FRAME_RELATED_P (insn) = 1; + } } } @@ -293,26 +304,25 @@ moxie_expand_epilogue (void) if (cfun->machine->callee_saved_reg_size != 0) { reg = gen_rtx_REG (Pmode, MOXIE_R12); - emit_move_insn (reg, - GEN_INT (-cfun->machine->callee_saved_reg_size)); - emit_insn (gen_addsi3 (reg, reg, hard_frame_pointer_rtx)); - insn = emit_move_insn (stack_pointer_rtx, reg); - RTX_FRAME_RELATED_P (insn) = 1; - add_reg_note (insn, REG_CFA_DEF_CFA, - plus_constant (stack_pointer_rtx, - cfun->machine->callee_saved_reg_size)); + if (cfun->machine->callee_saved_reg_size <= 255) + { + emit_move_insn (reg, hard_frame_pointer_rtx); + emit_insn (gen_subsi3 + (reg, reg, + GEN_INT (cfun->machine->callee_saved_reg_size))); + } + else + { + emit_move_insn (reg, + GEN_INT (-cfun->machine->callee_saved_reg_size)); + emit_insn (gen_addsi3 (reg, reg, hard_frame_pointer_rtx)); + } for (regno = FIRST_PSEUDO_REGISTER; regno-- > 0; ) if (!fixed_regs[regno] && !call_used_regs[regno] && df_regs_ever_live_p (regno)) { - reg = gen_rtx_REG (Pmode, regno); - insn = emit_insn (gen_movsi_pop (reg)); - RTX_FRAME_RELATED_P (insn) = 1; - add_reg_note (insn, REG_CFA_ADJUST_CFA, - gen_rtx_SET (VOIDmode, stack_pointer_rtx, - plus_constant (stack_pointer_rtx, - UNITS_PER_WORD))); - add_reg_note (insn, REG_CFA_RESTORE, reg); + rtx preg = gen_rtx_REG (Pmode, regno); + insn = emit_insn (gen_movsi_pop (reg, preg)); } } diff --git a/gcc/config/moxie/moxie.md b/gcc/config/moxie/moxie.md index 7f3729f..02072f4 100644 --- a/gcc/config/moxie/moxie.md +++ b/gcc/config/moxie/moxie.md @@ -195,10 +195,10 @@ ;; Pop a register from the stack (define_insn "movsi_pop" - [(set:SI (match_operand:SI 0 "register_operand" "=r") - (mem:SI (post_inc:SI (reg:SI 1))))] + [(set:SI (match_operand:SI 1 "register_operand" "=r") + (mem:SI (post_inc:SI (match_operand:SI 0 "register_operand" "r"))))] "" - "pop $sp, %0") + "pop %0, %1") (define_expand "movsi" [(set (match_operand:SI 0 "general_operand" "") |