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Diffstat (limited to 'gcc/config/xtensa/xtensa.c')
-rw-r--r--gcc/config/xtensa/xtensa.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 74e4b3051e3..e8926c9c1e3 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -600,7 +600,7 @@ move_operand (rtx op, enum machine_mode mode)
case SImode:
if (TARGET_CONST16)
return CONSTANT_P (op);
- /* fall through */
+ /* Fall through. */
case HImode:
case QImode:
@@ -652,12 +652,12 @@ constantpool_address_p (rtx addr)
{
rtx offset;
- /* only handle (PLUS (SYM, OFFSET)) form */
+ /* Only handle (PLUS (SYM, OFFSET)) form. */
addr = XEXP (addr, 0);
if (GET_CODE (addr) != PLUS)
return FALSE;
- /* make sure the address is word aligned */
+ /* Make sure the address is word aligned. */
offset = XEXP (addr, 1);
if ((GET_CODE (offset) != CONST_INT)
|| ((INTVAL (offset) & 3) != 0))
@@ -728,7 +728,7 @@ xtensa_extend_reg (rtx dst, rtx src)
rtx temp = gen_reg_rtx (SImode);
rtx shift = GEN_INT (BITS_PER_WORD - GET_MODE_BITSIZE (GET_MODE (src)));
- /* generate paradoxical subregs as needed so that the modes match */
+ /* Generate paradoxical subregs as needed so that the modes match. */
src = simplify_gen_subreg (SImode, src, GET_MODE (src), 0);
dst = simplify_gen_subreg (SImode, dst, GET_MODE (dst), 0);
@@ -1080,14 +1080,14 @@ gen_conditional_move (rtx cmp)
if (boolean_operator (cmp, VOIDmode))
{
- /* swap the operands to make const0 second */
+ /* Swap the operands to make const0 second. */
if (op0 == const0_rtx)
{
op0 = op1;
op1 = const0_rtx;
}
- /* if not comparing against zero, emit a comparison (subtract) */
+ /* If not comparing against zero, emit a comparison (subtract). */
if (op1 != const0_rtx)
{
op0 = expand_binop (SImode, sub_optab, op0, op1,
@@ -1097,7 +1097,7 @@ gen_conditional_move (rtx cmp)
}
else if (branch_operator (cmp, VOIDmode))
{
- /* swap the operands to make const0 second */
+ /* Swap the operands to make const0 second. */
if (op0 == const0_rtx)
{
op0 = op1;
@@ -1379,26 +1379,26 @@ xtensa_expand_block_move (rtx *operands)
int align = XINT (operands[3], 0);
int num_pieces, move_ratio;
- /* If this is not a fixed size move, just call memcpy */
+ /* If this is not a fixed size move, just call memcpy. */
if (!optimize || (GET_CODE (operands[2]) != CONST_INT))
return 0;
- /* Anything to move? */
+ /* Anything to move? */
if (bytes <= 0)
return 1;
if (align > MOVE_MAX)
align = MOVE_MAX;
- /* decide whether to expand inline based on the optimization level */
+ /* Decide whether to expand inline based on the optimization level. */
move_ratio = 4;
if (optimize > 2)
move_ratio = LARGEST_MOVE_RATIO;
- num_pieces = (bytes / align) + (bytes % align); /* close enough anyway */
+ num_pieces = (bytes / align) + (bytes % align); /* Close enough anyway. */
if (num_pieces >= move_ratio)
return 0;
- /* make sure the memory addresses are valid */
+ /* Make sure the memory addresses are valid. */
operands[0] = validize_mem (dest);
operands[1] = validize_mem (src);
@@ -1408,10 +1408,10 @@ xtensa_expand_block_move (rtx *operands)
}
-/* Emit a sequence of instructions to implement a block move, trying
- to hide load delay slots as much as possible. Load N values into
- temporary registers, store those N values, and repeat until the
- complete block has been moved. N=delay_slots+1 */
+/* Emit a sequence of instructions to implement a block move, trying
+ to hide load delay slots as much as possible. Load N values into
+ temporary registers, store those N values, and repeat until the
+ complete block has been moved. N=delay_slots+1. */
struct meminsnbuf
{
@@ -1467,7 +1467,7 @@ xtensa_emit_block_move (rtx *operands, rtx *tmpregs, int delay_slots)
if (bytes < item_size)
{
- /* find a smaller item_size which we can load & store */
+ /* Find a smaller item_size which we can load & store. */
item_size = bytes;
mode = xtensa_find_mode_for_size (item_size);
item_size = GET_MODE_SIZE (mode);
@@ -1475,7 +1475,7 @@ xtensa_emit_block_move (rtx *operands, rtx *tmpregs, int delay_slots)
stname = xtensa_st_opcodes[(int) mode];
}
- /* record the load instruction opcode and operands */
+ /* Record the load instruction opcode and operands. */
addr = plus_constant (from_addr, offset);
mem = gen_rtx_MEM (mode, addr);
if (! memory_address_p (mode, addr))
@@ -1485,7 +1485,7 @@ xtensa_emit_block_move (rtx *operands, rtx *tmpregs, int delay_slots)
ldinsns[n].operands[1] = mem;
sprintf (ldinsns[n].template, "%s\t%%0, %%1", ldname);
- /* record the store instruction opcode and operands */
+ /* Record the store instruction opcode and operands. */
addr = plus_constant (to_addr, offset);
mem = gen_rtx_MEM (mode, addr);
if (! memory_address_p (mode, addr))
@@ -1499,7 +1499,7 @@ xtensa_emit_block_move (rtx *operands, rtx *tmpregs, int delay_slots)
bytes -= item_size;
}
- /* now output the loads followed by the stores */
+ /* Now output the loads followed by the stores. */
for (n = 0; n < chunk_size; n++)
output_asm_insn (ldinsns[n].template, ldinsns[n].operands);
for (n = 0; n < chunk_size; n++)
@@ -1517,7 +1517,7 @@ xtensa_find_mode_for_size (unsigned item_size)
{
mode = VOIDmode;
- /* find mode closest to but not bigger than item_size */
+ /* Find mode closest to but not bigger than item_size. */
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) <= item_size)
@@ -1531,7 +1531,7 @@ xtensa_find_mode_for_size (unsigned item_size)
&& xtensa_st_opcodes[(int) mode])
break;
- /* cannot load & store this mode; try something smaller */
+ /* Cannot load & store this mode; try something smaller. */
item_size -= 1;
}
@@ -1545,8 +1545,8 @@ xtensa_expand_nonlocal_goto (rtx *operands)
rtx goto_handler = operands[1];
rtx containing_fp = operands[3];
- /* generate a call to "__xtensa_nonlocal_goto" (in libgcc); the code
- is too big to generate in-line */
+ /* Generate a call to "__xtensa_nonlocal_goto" (in libgcc); the code
+ is too big to generate in-line. */
if (GET_CODE (containing_fp) != REG)
containing_fp = force_reg (Pmode, containing_fp);
@@ -1789,7 +1789,7 @@ override_options (void)
if (!TARGET_BOOLEANS && TARGET_HARD_FLOAT)
error ("boolean registers required for the floating-point option");
- /* set up the tables of ld/st opcode names for block moves */
+ /* Set up the tables of ld/st opcode names for block moves. */
xtensa_ld_opcodes[(int) SImode] = "l32i";
xtensa_ld_opcodes[(int) HImode] = "l16ui";
xtensa_ld_opcodes[(int) QImode] = "l8ui";
@@ -2366,7 +2366,7 @@ xtensa_builtin_saveregs (void)
if (gp_left == 0)
return const0_rtx;
- /* allocate the general-purpose register space */
+ /* Allocate the general-purpose register space. */
gp_regs = assign_stack_local
(BLKmode, MAX_ARGS_IN_REGISTERS * UNITS_PER_WORD, -1);
set_mem_alias_set (gp_regs, get_varargs_alias_set ());
@@ -2662,8 +2662,8 @@ order_regs_for_local_alloc (void)
int i, num_arg_regs;
int nxt = 0;
- /* use the AR registers in increasing order (skipping a0 and a1)
- but save the incoming argument registers for a last resort */
+ /* Use the AR registers in increasing order (skipping a0 and a1)
+ but save the incoming argument registers for a last resort. */
num_arg_regs = current_function_args_info.arg_words;
if (num_arg_regs > MAX_ARGS_IN_REGISTERS)
num_arg_regs = MAX_ARGS_IN_REGISTERS;
@@ -2672,11 +2672,11 @@ order_regs_for_local_alloc (void)
for (i = 0; i < num_arg_regs; i++)
reg_alloc_order[nxt++] = GP_ARG_FIRST + i;
- /* list the coprocessor registers in order */
+ /* List the coprocessor registers in order. */
for (i = 0; i < BR_REG_NUM; i++)
reg_alloc_order[nxt++] = BR_REG_FIRST + i;
- /* list the FP registers in order for now */
+ /* List the FP registers in order for now. */
for (i = 0; i < 16; i++)
reg_alloc_order[nxt++] = FP_REG_FIRST + i;
@@ -2821,7 +2821,7 @@ xtensa_rtx_costs (rtx x, int code, int outer_code, int *total)
case LSHIFTRT:
case ROTATE:
case ROTATERT:
- /* no way to tell if X is the 2nd operand so be conservative */
+ /* No way to tell if X is the 2nd operand so be conservative. */
default: break;
}
if (xtensa_simm12b (INTVAL (x)))
@@ -2948,7 +2948,7 @@ xtensa_rtx_costs (rtx x, int code, int outer_code, int *total)
return true;
}
}
- /* fall through */
+ /* Fall through. */
case UDIV:
case UMOD:
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 15:37:40 +0000