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Refine formatting and comments. 

gcc/
	* config/nds32/nds32.c: Refine formatting and comments.
	* config/nds32/nds32.h: Likewise.
	* config/nds32/nds32.md: Likewise.
	* config/nds32/nds32-cost.c: Likewise.
	* config/nds32/nds32-isr.c: Likewise.
	* config/nds32/nds32-md-auxiliary.c: Likewise.
	* config/nds32/nds32-multiple.md: Likewise.
	* config/nds32/nds32-predicates.c: Likewise.

From-SVN: r252874
This commit is contained in:
Chung-Ju Wu 2017-09-16 14:50:07 +00:00 committed by Chung-Ju Wu
parent ebc6a85e3e
commit 8a498f99ca
9 changed files with 396 additions and 386 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2017-09-16 Chung-Ju Wu <jasonwucj@gmail.com>
* config/nds32/nds32.c: Refine formatting and comments.
* config/nds32/nds32.h: Likewise.
* config/nds32/nds32.md: Likewise.
* config/nds32/nds32-cost.c: Likewise.
* config/nds32/nds32-isr.c: Likewise.
* config/nds32/nds32-md-auxiliary.c: Likewise.
* config/nds32/nds32-multiple.md: Likewise.
* config/nds32/nds32-predicates.c: Likewise.
2017-09-15 Andrew Sutton <andrew.n.sutton@gmail.com> 2017-09-15 Andrew Sutton <andrew.n.sutton@gmail.com>
Jakub Jelinek <jakub@redhat.com> Jakub Jelinek <jakub@redhat.com>

31
gcc/config/nds32/nds32.c
View File

@ -275,8 +275,8 @@ nds32_compute_stack_frame (void)
cfun->machine->fp_size cfun->machine->fp_size
cfun->machine->gp_size cfun->machine->gp_size
cfun->machine->lp_size cfun->machine->lp_size
cfun->machine->callee_saved_regs_first_regno cfun->machine->callee_saved_first_gpr_regno
cfun->machine->callee_saved_regs_last_regno */ cfun->machine->callee_saved_last_gpr_regno */
/* For v3push instructions, $fp, $gp, and $lp are always saved. */ /* For v3push instructions, $fp, $gp, and $lp are always saved. */
cfun->machine->fp_size = 4; cfun->machine->fp_size = 4;
@ -319,11 +319,11 @@ nds32_compute_stack_frame (void)
} }
} }
/* We have correctly set callee_saved_regs_first_regno /* We have correctly set callee_saved_first_gpr_regno
and callee_saved_regs_last_regno. and callee_saved_last_gpr_regno.
Initially, the callee_saved_regs_size is supposed to be 0. Initially, the callee_saved_gpr_regs_size is supposed to be 0.
As long as callee_saved_regs_last_regno is not SP_REGNUM, As long as callee_saved_last_gpr_regno is not SP_REGNUM,
we can update callee_saved_regs_size with new size. */ we can update callee_saved_gpr_regs_size with new size. */
if (cfun->machine->callee_saved_last_gpr_regno != SP_REGNUM) if (cfun->machine->callee_saved_last_gpr_regno != SP_REGNUM)
{ {
/* Compute pushed size of callee-saved registers. */ /* Compute pushed size of callee-saved registers. */
@ -334,7 +334,7 @@ nds32_compute_stack_frame (void)
} }
/* Important: We need to make sure that /* Important: We need to make sure that
(fp_size + gp_size + lp_size + callee_saved_regs_size) (fp_size + gp_size + lp_size + callee_saved_gpr_regs_size)
is 8-byte alignment. is 8-byte alignment.
If it is not, calculate the padding bytes. */ If it is not, calculate the padding bytes. */
block_size = cfun->machine->fp_size block_size = cfun->machine->fp_size
@ -1672,7 +1672,7 @@ nds32_asm_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
static bool static bool
nds32_warn_func_return (tree decl) nds32_warn_func_return (tree decl)
{ {
/* Naked functions are implemented entirely in assembly, including the /* Naked functions are implemented entirely in assembly, including the
return sequence, so suppress warnings about this. */ return sequence, so suppress warnings about this. */
return !nds32_naked_function_p (decl); return !nds32_naked_function_p (decl);
} }
@ -1911,7 +1911,6 @@ nds32_legitimate_address_p (machine_mode mode, rtx x, bool strict)
&& nds32_legitimate_index_p (mode, XEXP (x, 1), strict) && nds32_legitimate_index_p (mode, XEXP (x, 1), strict)
&& CONST_INT_P (XEXP (x, 1))) && CONST_INT_P (XEXP (x, 1)))
return true; return true;
else if (nds32_address_register_rtx_p (XEXP (x, 1), strict) else if (nds32_address_register_rtx_p (XEXP (x, 1), strict)
&& nds32_legitimate_index_p (mode, XEXP (x, 0), strict) && nds32_legitimate_index_p (mode, XEXP (x, 0), strict)
&& CONST_INT_P (XEXP (x, 0))) && CONST_INT_P (XEXP (x, 0)))
@ -2834,7 +2833,7 @@ nds32_initial_elimination_offset (unsigned int from_reg, unsigned int to_reg)
nds32_compute_stack_frame (); nds32_compute_stack_frame ();
/* Remember to consider /* Remember to consider
cfun->machine->callee_saved_area_padding_bytes cfun->machine->callee_saved_area_gpr_padding_bytes
when calculating offset. */ when calculating offset. */
if (from_reg == ARG_POINTER_REGNUM && to_reg == STACK_POINTER_REGNUM) if (from_reg == ARG_POINTER_REGNUM && to_reg == STACK_POINTER_REGNUM)
{ {
@ -2971,7 +2970,7 @@ nds32_expand_prologue (void)
/* adjust $fp = $sp + ($fp size) + ($gp size) + ($lp size) /* adjust $fp = $sp + ($fp size) + ($gp size) + ($lp size)
+ (4 * callee-saved-registers) + (4 * callee-saved-registers)
Note: No need to adjust Note: No need to adjust
cfun->machine->callee_saved_area_padding_bytes, cfun->machine->callee_saved_area_gpr_padding_bytes,
because, at this point, stack pointer is just because, at this point, stack pointer is just
at the position after push instruction. */ at the position after push instruction. */
fp_adjust = cfun->machine->fp_size fp_adjust = cfun->machine->fp_size
@ -2989,7 +2988,7 @@ nds32_expand_prologue (void)
} }
/* Adjust $sp = $sp - local_size - out_args_size /* Adjust $sp = $sp - local_size - out_args_size
- callee_saved_area_padding_bytes. */ - callee_saved_area_gpr_padding_bytes. */
sp_adjust = cfun->machine->local_size sp_adjust = cfun->machine->local_size
+ cfun->machine->out_args_size + cfun->machine->out_args_size
+ cfun->machine->callee_saved_area_gpr_padding_bytes; + cfun->machine->callee_saved_area_gpr_padding_bytes;
@ -3074,7 +3073,7 @@ nds32_expand_epilogue (bool sibcall_p)
/* adjust $sp = $fp - ($fp size) - ($gp size) - ($lp size) /* adjust $sp = $fp - ($fp size) - ($gp size) - ($lp size)
- (4 * callee-saved-registers) - (4 * callee-saved-registers)
Note: No need to adjust Note: No need to adjust
cfun->machine->callee_saved_area_padding_bytes, cfun->machine->callee_saved_area_gpr_padding_bytes,
because we want to adjust stack pointer because we want to adjust stack pointer
to the position for pop instruction. */ to the position for pop instruction. */
sp_adjust = cfun->machine->fp_size sp_adjust = cfun->machine->fp_size
@ -3371,7 +3370,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p)
- 4 ($lp size) - 4 ($lp size)
- (4 * n) (callee-saved registers) - (4 * n) (callee-saved registers)
Note: No need to adjust Note: No need to adjust
cfun->machine->callee_saved_area_padding_bytes, cfun->machine->callee_saved_area_gpr_padding_bytes,
because we want to adjust stack pointer because we want to adjust stack pointer
to the position for pop instruction. */ to the position for pop instruction. */
sp_adjust = cfun->machine->fp_size sp_adjust = cfun->machine->fp_size
@ -3394,7 +3393,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p)
so we have to deal with it as well. */ so we have to deal with it as well. */
/* Adjust $sp = $sp + local_size + out_args_size /* Adjust $sp = $sp + local_size + out_args_size
+ callee_saved_area_padding_bytes. */ + callee_saved_area_gpr_padding_bytes. */
sp_adjust = cfun->machine->local_size sp_adjust = cfun->machine->local_size
+ cfun->machine->out_args_size + cfun->machine->out_args_size
+ cfun->machine->callee_saved_area_gpr_padding_bytes; + cfun->machine->callee_saved_area_gpr_padding_bytes;