From: Chung-Ju Wu Date: Tue, 10 Mar 2015 08:16:57 +0000 (+0000) Subject: [NDS32] Rename some variables so that we can clearly identify they represent general... X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c457f75178f02049189b3369af3d5ee95adaa166;p=gcc.git [NDS32] Rename some variables so that we can clearly identify they represent general purpose registers. gcc/ * config/nds32/nds32.h (callee_saved_regs_size): Rename to ... (callee_saved_gpr_regs_size): ... this. (callee_saved_regs_first_regno): Rename to ... (callee_saved_first_gpr_regno): ... this. (callee_saved_regs_last_regno) Rename to ... (callee_saved_last_gpr_regno): ... this. * config/nds32/nds32.c (nds32_compute_stack_frame): Adjust renamed variables. (nds32_initial_elimination_offset): Likewise. (nds32_expand_prologue): Likewise. (nds32_expand_epilogue): Likewise. (nds32_expand_prologue_v3push): Likewise. (nds32_expand_epilogue_v3pop): Likewise. * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push): Adjust renamed variables. (nds32_output_stack_pop): Likewise. From-SVN: r221306 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 47de3b9c4c6..f878488e91a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,22 @@ +2015-03-10 Chung-Ju Wu + + * config/nds32/nds32.h (callee_saved_regs_size): Rename to ... + (callee_saved_gpr_regs_size): ... this. + (callee_saved_regs_first_regno): Rename to ... + (callee_saved_first_gpr_regno): ... this. + (callee_saved_regs_last_regno) Rename to ... + (callee_saved_last_gpr_regno): ... this. + * config/nds32/nds32.c (nds32_compute_stack_frame): Adjust renamed + variables. + (nds32_initial_elimination_offset): Likewise. + (nds32_expand_prologue): Likewise. + (nds32_expand_epilogue): Likewise. + (nds32_expand_prologue_v3push): Likewise. + (nds32_expand_epilogue_v3pop): Likewise. + * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push): + Adjust renamed variables. + (nds32_output_stack_pop): Likewise. + 2015-03-10 Thomas Preud'homme * dominance.c (nearest_common_dominator_for_set): Fix A_Dominated_by_B diff --git a/gcc/config/nds32/nds32-md-auxiliary.c b/gcc/config/nds32/nds32-md-auxiliary.c index 2f4927731be..0a3e773c55f 100644 --- a/gcc/config/nds32/nds32-md-auxiliary.c +++ b/gcc/config/nds32/nds32-md-auxiliary.c @@ -604,8 +604,8 @@ nds32_output_stack_push (rtx par_rtx) + NDS32_MAX_GPR_REGS_FOR_ARGS - 1; /* Pick up callee-saved first regno and last regno for further use. */ - int rb_callee_saved = cfun->machine->callee_saved_regs_first_regno; - int re_callee_saved = cfun->machine->callee_saved_regs_last_regno; + int rb_callee_saved = cfun->machine->callee_saved_first_gpr_regno; + int re_callee_saved = cfun->machine->callee_saved_last_gpr_regno; /* First we need to check if we are pushing argument registers not used for the named arguments. If so, we have to create 'smw.adm' (push.s) @@ -644,7 +644,7 @@ nds32_output_stack_push (rtx par_rtx) otherwise, generate 'push25 Re,0'. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; if (satisfies_constraint_Iu08 (GEN_INT (sp_adjust)) && NDS32_DOUBLE_WORD_ALIGN_P (sp_adjust)) operands[1] = GEN_INT (sp_adjust); @@ -712,8 +712,8 @@ nds32_output_stack_pop (rtx par_rtx ATTRIBUTE_UNUSED) /* The operands array which will be used in output_asm_insn(). */ rtx operands[3]; /* Pick up callee-saved first regno and last regno for further use. */ - int rb_callee_saved = cfun->machine->callee_saved_regs_first_regno; - int re_callee_saved = cfun->machine->callee_saved_regs_last_regno; + int rb_callee_saved = cfun->machine->callee_saved_first_gpr_regno; + int re_callee_saved = cfun->machine->callee_saved_last_gpr_regno; /* If we step here, we are going to do v3pop or multiple pop operation. */ @@ -742,7 +742,7 @@ nds32_output_stack_pop (rtx par_rtx ATTRIBUTE_UNUSED) and then use 'pop25 Re,0'. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; if (satisfies_constraint_Iu08 (GEN_INT (sp_adjust)) && NDS32_DOUBLE_WORD_ALIGN_P (sp_adjust) && !cfun->calls_alloca) diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c index 1845bc21812..b79e33e873a 100644 --- a/gcc/config/nds32/nds32.c +++ b/gcc/config/nds32/nds32.c @@ -224,12 +224,12 @@ nds32_compute_stack_frame (void) cfun->machine->lp_size = (df_regs_ever_live_p (LP_REGNUM)) ? 4 : 0; /* Initially there is no padding bytes. */ - cfun->machine->callee_saved_area_padding_bytes = 0; + cfun->machine->callee_saved_area_gpr_padding_bytes = 0; /* Calculate the bytes of saving callee-saved registers on stack. */ - cfun->machine->callee_saved_regs_size = 0; - cfun->machine->callee_saved_regs_first_regno = SP_REGNUM; - cfun->machine->callee_saved_regs_last_regno = SP_REGNUM; + cfun->machine->callee_saved_gpr_regs_size = 0; + cfun->machine->callee_saved_first_gpr_regno = SP_REGNUM; + cfun->machine->callee_saved_last_gpr_regno = SP_REGNUM; /* Currently, there is no need to check $r28~$r31 because we will save them in another way. */ for (r = 0; r < 28; r++) @@ -240,10 +240,10 @@ nds32_compute_stack_frame (void) (only need to set it once). If first regno == SP_REGNUM, we can tell that it is the first time to be here. */ - if (cfun->machine->callee_saved_regs_first_regno == SP_REGNUM) - cfun->machine->callee_saved_regs_first_regno = r; + if (cfun->machine->callee_saved_first_gpr_regno == SP_REGNUM) + cfun->machine->callee_saved_first_gpr_regno = r; /* Mark the last required callee-saved register. */ - cfun->machine->callee_saved_regs_last_regno = r; + cfun->machine->callee_saved_last_gpr_regno = r; } } @@ -262,8 +262,8 @@ nds32_compute_stack_frame (void) condition 3: There is no local_size, which means we do not need to adjust $sp. */ if (lookup_attribute ("naked", DECL_ATTRIBUTES (current_function_decl)) - || (cfun->machine->callee_saved_regs_first_regno == SP_REGNUM - && cfun->machine->callee_saved_regs_last_regno == SP_REGNUM + || (cfun->machine->callee_saved_first_gpr_regno == SP_REGNUM + && cfun->machine->callee_saved_last_gpr_regno == SP_REGNUM && !df_regs_ever_live_p (FP_REGNUM) && !df_regs_ever_live_p (LP_REGNUM) && cfun->machine->local_size == 0)) @@ -315,33 +315,33 @@ nds32_compute_stack_frame (void) cfun->machine->lp_size = 4; /* Remember to set Rb = $r6. */ - cfun->machine->callee_saved_regs_first_regno = 6; + cfun->machine->callee_saved_first_gpr_regno = 6; - if (cfun->machine->callee_saved_regs_last_regno <= 6) + if (cfun->machine->callee_saved_last_gpr_regno <= 6) { /* Re = $r6 */ - cfun->machine->callee_saved_regs_last_regno = 6; + cfun->machine->callee_saved_last_gpr_regno = 6; } - else if (cfun->machine->callee_saved_regs_last_regno <= 8) + else if (cfun->machine->callee_saved_last_gpr_regno <= 8) { /* Re = $r8 */ - cfun->machine->callee_saved_regs_last_regno = 8; + cfun->machine->callee_saved_last_gpr_regno = 8; } - else if (cfun->machine->callee_saved_regs_last_regno <= 10) + else if (cfun->machine->callee_saved_last_gpr_regno <= 10) { /* Re = $r10 */ - cfun->machine->callee_saved_regs_last_regno = 10; + cfun->machine->callee_saved_last_gpr_regno = 10; } - else if (cfun->machine->callee_saved_regs_last_regno <= 14) + else if (cfun->machine->callee_saved_last_gpr_regno <= 14) { /* Re = $r14 */ - cfun->machine->callee_saved_regs_last_regno = 14; + cfun->machine->callee_saved_last_gpr_regno = 14; } - else if (cfun->machine->callee_saved_regs_last_regno == SP_REGNUM) + else if (cfun->machine->callee_saved_last_gpr_regno == SP_REGNUM) { /* If last_regno is SP_REGNUM, which means it is never changed, so set it to Re = $r6. */ - cfun->machine->callee_saved_regs_last_regno = 6; + cfun->machine->callee_saved_last_gpr_regno = 6; } else { @@ -355,12 +355,12 @@ nds32_compute_stack_frame (void) Initially, the callee_saved_regs_size is supposed to be 0. As long as callee_saved_regs_last_regno is not SP_REGNUM, we can update callee_saved_regs_size with new size. */ - if (cfun->machine->callee_saved_regs_last_regno != SP_REGNUM) + if (cfun->machine->callee_saved_last_gpr_regno != SP_REGNUM) { /* Compute pushed size of callee-saved registers. */ - cfun->machine->callee_saved_regs_size - = 4 * (cfun->machine->callee_saved_regs_last_regno - - cfun->machine->callee_saved_regs_first_regno + cfun->machine->callee_saved_gpr_regs_size + = 4 * (cfun->machine->callee_saved_last_gpr_regno + - cfun->machine->callee_saved_first_gpr_regno + 1); } @@ -371,10 +371,10 @@ nds32_compute_stack_frame (void) block_size = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size; + + cfun->machine->callee_saved_gpr_regs_size; if (!NDS32_DOUBLE_WORD_ALIGN_P (block_size)) { - cfun->machine->callee_saved_area_padding_bytes + cfun->machine->callee_saved_area_gpr_padding_bytes = NDS32_ROUND_UP_DOUBLE_WORD (block_size) - block_size; } @@ -2866,8 +2866,8 @@ nds32_initial_elimination_offset (unsigned int from_reg, unsigned int to_reg) offset = (cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size - + cfun->machine->callee_saved_area_padding_bytes + + cfun->machine->callee_saved_gpr_regs_size + + cfun->machine->callee_saved_area_gpr_padding_bytes + cfun->machine->local_size + cfun->machine->out_args_size); } @@ -2887,8 +2887,8 @@ nds32_initial_elimination_offset (unsigned int from_reg, unsigned int to_reg) offset = (-1) * (cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size - + cfun->machine->callee_saved_area_padding_bytes); + + cfun->machine->callee_saved_gpr_regs_size + + cfun->machine->callee_saved_area_gpr_padding_bytes); } else { @@ -2965,8 +2965,8 @@ nds32_expand_prologue (void) return; /* Get callee_first_regno and callee_last_regno. */ - Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_first_regno); - Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_last_regno); + Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_first_gpr_regno); + Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_last_gpr_regno); /* nds32_emit_stack_push_multiple(first_regno, last_regno), the pattern 'stack_push_multiple' is implemented in nds32.md. @@ -3002,7 +3002,7 @@ nds32_expand_prologue (void) fp_adjust = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size; + + cfun->machine->callee_saved_gpr_regs_size; fp_adjust_insn = gen_addsi3 (hard_frame_pointer_rtx, stack_pointer_rtx, GEN_INT (fp_adjust)); @@ -3017,7 +3017,7 @@ nds32_expand_prologue (void) - callee_saved_area_padding_bytes. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; /* sp_adjust value may be out of range of the addi instruction, create alternative add behavior with TA_REGNUM if necessary, using NEGATIVE value to tell that we are decreasing address. */ @@ -3105,7 +3105,7 @@ nds32_expand_epilogue (bool sibcall_p) sp_adjust = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size; + + cfun->machine->callee_saved_gpr_regs_size; sp_adjust_insn = gen_addsi3 (stack_pointer_rtx, hard_frame_pointer_rtx, GEN_INT (-1 * sp_adjust)); @@ -3128,7 +3128,7 @@ nds32_expand_epilogue (bool sibcall_p) + callee_saved_area_padding_bytes. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; /* sp_adjust value may be out of range of the addi instruction, create alternative add behavior with TA_REGNUM if necessary, using POSITIVE value to tell that we are increasing address. */ @@ -3149,8 +3149,8 @@ nds32_expand_epilogue (bool sibcall_p) } /* Get callee_first_regno and callee_last_regno. */ - Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_first_regno); - Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_last_regno); + Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_first_gpr_regno); + Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_last_gpr_regno); /* nds32_emit_stack_pop_multiple(first_regno, last_regno), the pattern 'stack_pop_multiple' is implementad in nds32.md. @@ -3219,14 +3219,14 @@ nds32_expand_prologue_v3push (void) return; /* Get callee_first_regno and callee_last_regno. */ - Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_first_regno); - Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_last_regno); + Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_first_gpr_regno); + Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_last_gpr_regno); /* Calculate sp_adjust first to test if 'push25 Re,imm8u' is available, where imm8u has to be 8-byte alignment. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; if (satisfies_constraint_Iu08 (GEN_INT (sp_adjust)) && NDS32_DOUBLE_WORD_ALIGN_P (sp_adjust)) @@ -3256,7 +3256,7 @@ nds32_expand_prologue_v3push (void) fp_adjust = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size + + cfun->machine->callee_saved_gpr_regs_size + sp_adjust; fp_adjust_insn = gen_addsi3 (hard_frame_pointer_rtx, stack_pointer_rtx, @@ -3291,7 +3291,7 @@ nds32_expand_prologue_v3push (void) fp_adjust = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size; + + cfun->machine->callee_saved_gpr_regs_size; fp_adjust_insn = gen_addsi3 (hard_frame_pointer_rtx, stack_pointer_rtx, GEN_INT (fp_adjust)); @@ -3356,14 +3356,14 @@ nds32_expand_epilogue_v3pop (bool sibcall_p) } /* Get callee_first_regno and callee_last_regno. */ - Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_first_regno); - Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_regs_last_regno); + Rb = gen_rtx_REG (SImode, cfun->machine->callee_saved_first_gpr_regno); + Re = gen_rtx_REG (SImode, cfun->machine->callee_saved_last_gpr_regno); /* Calculate sp_adjust first to test if 'pop25 Re,imm8u' is available, where imm8u has to be 8-byte alignment. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; /* We have to consider alloca issue as well. If the function does call alloca(), the stack pointer is not fixed. @@ -3402,7 +3402,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p) sp_adjust = cfun->machine->fp_size + cfun->machine->gp_size + cfun->machine->lp_size - + cfun->machine->callee_saved_regs_size; + + cfun->machine->callee_saved_gpr_regs_size; sp_adjust_insn = gen_addsi3 (stack_pointer_rtx, hard_frame_pointer_rtx, GEN_INT (-1 * sp_adjust)); @@ -3422,7 +3422,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p) + callee_saved_area_padding_bytes. */ sp_adjust = cfun->machine->local_size + cfun->machine->out_args_size - + cfun->machine->callee_saved_area_padding_bytes; + + cfun->machine->callee_saved_area_gpr_padding_bytes; /* sp_adjust value may be out of range of the addi instruction, create alternative add behavior with TA_REGNUM if necessary, using POSITIVE value to tell that we are increasing address. */ diff --git a/gcc/config/nds32/nds32.h b/gcc/config/nds32/nds32.h index 8e4ebecf3be..3c7a7b3e9f2 100644 --- a/gcc/config/nds32/nds32.h +++ b/gcc/config/nds32/nds32.h @@ -218,15 +218,17 @@ struct GTY(()) machine_function /* Number of bytes on the stack for saving $lp. */ int lp_size; - /* Number of bytes on the stack for saving callee-saved registers. */ - int callee_saved_regs_size; + /* Number of bytes on the stack for saving general purpose + callee-saved registers. */ + int callee_saved_gpr_regs_size; + /* The padding bytes in callee-saved area may be required. */ - int callee_saved_area_padding_bytes; + int callee_saved_area_gpr_padding_bytes; - /* The first required callee-saved register. */ - int callee_saved_regs_first_regno; - /* The last required callee-saved register. */ - int callee_saved_regs_last_regno; + /* The first required general purpose callee-saved register. */ + int callee_saved_first_gpr_regno; + /* The last required general purpose callee-saved register. */ + int callee_saved_last_gpr_regno; /* The padding bytes in varargs area may be required. */ int va_args_area_padding_bytes;