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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2017-08-07 14:17:09 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco@gcc.gnu.org> | 2017-08-07 14:17:09 +0000 |
| commit | 30079dde47ad224613340f220df061cb4a5829b7 (patch) | |
| tree | 333699e8c18004a1e3fad9eeb9131e94c5b2d731 /gcc | |
| parent | 6f1a16cbe84edaa9551d21d8b4db5830b6fed5dd (diff) | |
| download | gcc-30079dde47ad224613340f220df061cb4a5829b7.zip gcc-30079dde47ad224613340f220df061cb4a5829b7.tar.gz gcc-30079dde47ad224613340f220df061cb4a5829b7.tar.bz2 | |
[AArch64] Use gen_frame_mem for callee-saves
The frame code uses a mixture of gen_rtx_MEM and gen_frame_mem for
callee-saves. Callee-saves never alias with local variables, so using
gen_frame_mem is best.
gcc/
* config/aarch64/aarch64.c (aarch64_pushwb_single_reg):
Use gen_frame_mem.
(aarch64_pop_regs): Likewise.
(aarch64_gen_load_pair): Likewise.
(aarch64_save_callee_saves): Likewise.
(aarch64_restore_callee_saves): Likewise.
From-SVN: r250919
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 20 |
2 files changed, 17 insertions, 12 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 310ad80..ec83115 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2017-08-07 Wilco Dijkstra <wdijkstr@arm.com> + + * config/aarch64/aarch64.c (aarch64_pushwb_single_reg): + Use gen_frame_mem. + (aarch64_pop_regs): Likewise. + (aarch64_gen_load_pair): Likewise. + (aarch64_save_callee_saves): Likewise. + (aarch64_restore_callee_saves): Likewise. + 2017-08-07 H.J. Lu <hongjiu.lu@intel.com> * config/i386/i386.c: Revert the last change. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index fac5063..79a396e 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -3069,7 +3069,7 @@ aarch64_pushwb_single_reg (machine_mode mode, unsigned regno, reg = gen_rtx_REG (mode, regno); mem = gen_rtx_PRE_MODIFY (Pmode, base_rtx, plus_constant (Pmode, base_rtx, -adjustment)); - mem = gen_rtx_MEM (mode, mem); + mem = gen_frame_mem (mode, mem); insn = emit_move_insn (mem, reg); RTX_FRAME_RELATED_P (insn) = 1; @@ -3157,7 +3157,7 @@ aarch64_pop_regs (unsigned regno1, unsigned regno2, HOST_WIDE_INT adjustment, { rtx mem = plus_constant (Pmode, stack_pointer_rtx, adjustment); mem = gen_rtx_POST_MODIFY (Pmode, stack_pointer_rtx, mem); - emit_move_insn (reg1, gen_rtx_MEM (mode, mem)); + emit_move_insn (reg1, gen_frame_mem (mode, mem)); } else { @@ -3233,8 +3233,6 @@ aarch64_save_callee_saves (machine_mode mode, HOST_WIDE_INT start_offset, unsigned start, unsigned limit, bool skip_wb) { rtx_insn *insn; - rtx (*gen_mem_ref) (machine_mode, rtx) = (frame_pointer_needed - ? gen_frame_mem : gen_rtx_MEM); unsigned regno; unsigned regno2; @@ -3255,8 +3253,8 @@ aarch64_save_callee_saves (machine_mode mode, HOST_WIDE_INT start_offset, reg = gen_rtx_REG (mode, regno); offset = start_offset + cfun->machine->frame.reg_offset[regno]; - mem = gen_mem_ref (mode, plus_constant (Pmode, stack_pointer_rtx, - offset)); + mem = gen_frame_mem (mode, plus_constant (Pmode, stack_pointer_rtx, + offset)); regno2 = aarch64_next_callee_save (regno + 1, limit); @@ -3270,8 +3268,8 @@ aarch64_save_callee_saves (machine_mode mode, HOST_WIDE_INT start_offset, rtx mem2; offset = start_offset + cfun->machine->frame.reg_offset[regno2]; - mem2 = gen_mem_ref (mode, plus_constant (Pmode, stack_pointer_rtx, - offset)); + mem2 = gen_frame_mem (mode, plus_constant (Pmode, stack_pointer_rtx, + offset)); insn = emit_insn (aarch64_gen_store_pair (mode, mem, reg, mem2, reg2)); @@ -3300,8 +3298,6 @@ aarch64_restore_callee_saves (machine_mode mode, unsigned limit, bool skip_wb, rtx *cfi_ops) { rtx base_rtx = stack_pointer_rtx; - rtx (*gen_mem_ref) (machine_mode, rtx) = (frame_pointer_needed - ? gen_frame_mem : gen_rtx_MEM); unsigned regno; unsigned regno2; HOST_WIDE_INT offset; @@ -3322,7 +3318,7 @@ aarch64_restore_callee_saves (machine_mode mode, reg = gen_rtx_REG (mode, regno); offset = start_offset + cfun->machine->frame.reg_offset[regno]; - mem = gen_mem_ref (mode, plus_constant (Pmode, base_rtx, offset)); + mem = gen_frame_mem (mode, plus_constant (Pmode, base_rtx, offset)); regno2 = aarch64_next_callee_save (regno + 1, limit); @@ -3335,7 +3331,7 @@ aarch64_restore_callee_saves (machine_mode mode, rtx mem2; offset = start_offset + cfun->machine->frame.reg_offset[regno2]; - mem2 = gen_mem_ref (mode, plus_constant (Pmode, base_rtx, offset)); + mem2 = gen_frame_mem (mode, plus_constant (Pmode, base_rtx, offset)); emit_insn (aarch64_gen_load_pair (mode, reg, mem, reg2, mem2)); *cfi_ops = alloc_reg_note (REG_CFA_RESTORE, reg2, *cfi_ops); |