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riscv-gcc-1
Commit 8c440872 by Nathan Sidwell Committed by Nathan Sidwell
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h8300.c (byte_reg): Use gcc_assert and gcc_unreachable as appropriate. 

	* config/h8300/h8300.c (byte_reg): Use gcc_assert and
	gcc_unreachable as appropriate.
	(split_adds_subs, cond_string, print_operand,
	h8300_initial_elimination_offset, h8300_classify_operand,
	h8300_unary_length, h8300_short_immediate_length,
	h8300_bitfield_length, h8300_binary_length,
	h8300_insn_length_from_table, compute_mov_length, output_plussi,
	compute_plussi_length, compute_plussi_cc, output_logical_op,
	compute_logical_op_length, compute_logical_op_cc,
	output_h8sx_shift, get_shift_alg, h8300_shift_needs_scratch_p,
	output_a_shift, compute_a_shift_length, compute_a_shift_cc,
	output_a_rotate, compute_a_rotate_length, fix_bit_operand,
	h8300_regs_ok_for_stm): Likewise.
	* config/h8300/h8300.md (*movsi_h8300, *movsf_h8300,
	monitor_prologue): Likewise.

From-SVN: r99037
parent edd954e6
Showing with 261 additions and 252 deletions
gcc/ChangeLog
2005-04-30 Nathan Sidwell <nathan@codesourcery.com>
* config/h8300/h8300.c (byte_reg): Use gcc_assert and
gcc_unreachable as appropriate.
(split_adds_subs, cond_string, print_operand,
h8300_initial_elimination_offset, h8300_classify_operand,
h8300_unary_length, h8300_short_immediate_length,
h8300_bitfield_length, h8300_binary_length,
h8300_insn_length_from_table, compute_mov_length, output_plussi,
compute_plussi_length, compute_plussi_cc, output_logical_op,
compute_logical_op_length, compute_logical_op_cc,
output_h8sx_shift, get_shift_alg, h8300_shift_needs_scratch_p,
output_a_shift, compute_a_shift_length, compute_a_shift_cc,
output_a_rotate, compute_a_rotate_length, fix_bit_operand,
h8300_regs_ok_for_stm): Likewise.
* config/h8300/h8300.md (*movsi_h8300, *movsf_h8300,
monitor_prologue): Likewise.
2005-04-30 Kazu Hirata <kazu@cs.umass.edu> 2005-04-30 Kazu Hirata <kazu@cs.umass.edu>
* loop-invariant.c (invariants, create_new_invariant, * loop-invariant.c (invariants, create_new_invariant,
......
gcc/config/h8300/h8300.c
...@@ -481,8 +481,7 @@ byte_reg (rtx x, int b) ...@@ -481,8 +481,7 @@ byte_reg (rtx x, int b)
"r4l", "r4h", "r5l", "r5h", "r6l", "r6h", "r7l", "r7h" "r4l", "r4h", "r5l", "r5h", "r6l", "r6h", "r7l", "r7h"
}; };
if (!REG_P (x)) gcc_assert (REG_P (x));
abort ();
return names_small[REGNO (x) * 2 + b]; return names_small[REGNO (x) * 2 + b];
} }
...@@ -1001,7 +1000,7 @@ split_adds_subs (enum machine_mode mode, rtx *operands) ...@@ -1001,7 +1000,7 @@ split_adds_subs (enum machine_mode mode, rtx *operands)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Try different amounts in descending order. */ /* Try different amounts in descending order. */
...@@ -1366,7 +1365,7 @@ cond_string (enum rtx_code code) ...@@ -1366,7 +1365,7 @@ cond_string (enum rtx_code code)
case LTU: case LTU:
return "lo"; return "lo";
default: default:
abort (); gcc_unreachable ();
} }
} }
...@@ -1391,7 +1390,7 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1391,7 +1390,7 @@ print_operand (FILE *file, rtx x, int code)
fprintf (file, "#%ld", (-INTVAL (x)) & 0xff); fprintf (file, "#%ld", (-INTVAL (x)) & 0xff);
break; break;
default: default:
abort (); gcc_unreachable ();
} }
break; break;
case 'F': case 'F':
...@@ -1404,12 +1403,11 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1404,12 +1403,11 @@ print_operand (FILE *file, rtx x, int code)
fprintf (file, "#%ld", ((-INTVAL (x)) & 0xff00) >> 8); fprintf (file, "#%ld", ((-INTVAL (x)) & 0xff00) >> 8);
break; break;
default: default:
abort (); gcc_unreachable ();
} }
break; break;
case 'G': case 'G':
if (GET_CODE (x) != CONST_INT) gcc_assert (GET_CODE (x) == CONST_INT);
abort ();
fprintf (file, "#%ld", 0xff & (-INTVAL (x))); fprintf (file, "#%ld", 0xff & (-INTVAL (x)));
break; break;
case 'S': case 'S':
...@@ -1426,14 +1424,12 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1426,14 +1424,12 @@ print_operand (FILE *file, rtx x, int code)
break; break;
case 'V': case 'V':
bitint = exact_log2 (INTVAL (x) & 0xff); bitint = exact_log2 (INTVAL (x) & 0xff);
if (bitint == -1) gcc_assert (bitint >= 0);
abort ();
fprintf (file, "#%d", bitint); fprintf (file, "#%d", bitint);
break; break;
case 'W': case 'W':
bitint = exact_log2 ((~INTVAL (x)) & 0xff); bitint = exact_log2 ((~INTVAL (x)) & 0xff);
if (bitint == -1) gcc_assert (bitint >= 0);
abort ();
fprintf (file, "#%d", bitint); fprintf (file, "#%d", bitint);
break; break;
case 'R': case 'R':
...@@ -1444,8 +1440,7 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1444,8 +1440,7 @@ print_operand (FILE *file, rtx x, int code)
goto def; goto def;
break; break;
case 'Y': case 'Y':
if (bitint == -1) gcc_assert (bitint >= 0);
abort ();
if (GET_CODE (x) == REG) if (GET_CODE (x) == REG)
fprintf (file, "%s%c", names_big[REGNO (x)], bitint > 7 ? 'h' : 'l'); fprintf (file, "%s%c", names_big[REGNO (x)], bitint > 7 ? 'h' : 'l');
else else
...@@ -1497,7 +1492,7 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1497,7 +1492,7 @@ print_operand (FILE *file, rtx x, int code)
break; break;
} }
default: default:
abort (); gcc_unreachable ();
break; break;
} }
break; break;
...@@ -1527,7 +1522,7 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1527,7 +1522,7 @@ print_operand (FILE *file, rtx x, int code)
break; break;
} }
default: default:
abort (); gcc_unreachable ();
} }
break; break;
case 'j': case 'j':
...@@ -1537,16 +1532,24 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1537,16 +1532,24 @@ print_operand (FILE *file, rtx x, int code)
fputs (cond_string (reverse_condition (GET_CODE (x))), file); fputs (cond_string (reverse_condition (GET_CODE (x))), file);
break; break;
case 'm': case 'm':
if (GET_CODE (x) != CONST_INT) gcc_assert (GET_CODE (x) == CONST_INT);
abort (); switch (INTVAL (x))
if (INTVAL (x) == 1) {
fputs (".b", file); case 1:
else if (INTVAL (x) == 2) fputs (".b", file);
fputs (".w", file); break;
else if (INTVAL (x) == 4)
fputs (".l", file); case 2:
else fputs (".w", file);
abort (); break;
case 4:
fputs (".l", file);
break;
default:
gcc_unreachable ();
}
break; break;
case 'o': case 'o':
print_operand_address (file, x); print_operand_address (file, x);
...@@ -1612,7 +1615,7 @@ print_operand (FILE *file, rtx x, int code) ...@@ -1612,7 +1615,7 @@ print_operand (FILE *file, rtx x, int code)
fprintf (file, "%s", names_extended[REGNO (x)]); fprintf (file, "%s", names_extended[REGNO (x)]);
break; break;
default: default:
abort (); gcc_unreachable ();
} }
break; break;
...@@ -1846,8 +1849,9 @@ h8300_initial_elimination_offset (int from, int to) ...@@ -1846,8 +1849,9 @@ h8300_initial_elimination_offset (int from, int to)
pointer int account. */ pointer int account. */
saved_regs_size -= fp_size; saved_regs_size -= fp_size;
if (to == HARD_FRAME_POINTER_REGNUM) switch (to)
{ {
case HARD_FRAME_POINTER_REGNUM:
switch (from) switch (from)
{ {
case ARG_POINTER_REGNUM: case ARG_POINTER_REGNUM:
...@@ -1857,11 +1861,10 @@ h8300_initial_elimination_offset (int from, int to) ...@@ -1857,11 +1861,10 @@ h8300_initial_elimination_offset (int from, int to)
case FRAME_POINTER_REGNUM: case FRAME_POINTER_REGNUM:
return -saved_regs_size; return -saved_regs_size;
default: default:
abort (); gcc_unreachable ();
} }
} break;
else if (to == STACK_POINTER_REGNUM) case STACK_POINTER_REGNUM:
{
switch (from) switch (from)
{ {
case ARG_POINTER_REGNUM: case ARG_POINTER_REGNUM:
...@@ -1871,11 +1874,13 @@ h8300_initial_elimination_offset (int from, int to) ...@@ -1871,11 +1874,13 @@ h8300_initial_elimination_offset (int from, int to)
case FRAME_POINTER_REGNUM: case FRAME_POINTER_REGNUM:
return frame_size; return frame_size;
default: default:
abort (); gcc_unreachable ();
} }
break;
default:
gcc_unreachable ();
} }
else gcc_unreachable ();
abort ();
} }
/* Worker function for RETURN_ADDR_RTX. */ /* Worker function for RETURN_ADDR_RTX. */
...@@ -2196,12 +2201,9 @@ h8300_classify_operand (rtx op, int size, enum h8300_operand_class *class) ...@@ -2196,12 +2201,9 @@ h8300_classify_operand (rtx op, int size, enum h8300_operand_class *class)
return 0; return 0;
} }
} }
else if (register_operand (op, VOIDmode)) gcc_assert (register_operand (op, VOIDmode));
{ *class = H8OP_REGISTER;
*class = H8OP_REGISTER; return 0;
return 0;
}
abort ();
} }
/* Return the length of the instruction described by TABLE given that /* Return the length of the instruction described by TABLE given that
...@@ -2246,7 +2248,7 @@ h8300_unary_length (rtx op) ...@@ -2246,7 +2248,7 @@ h8300_unary_length (rtx op)
return operand_length + 6; return operand_length + 6;
default: default:
abort (); gcc_unreachable ();
} }
} }
...@@ -2272,7 +2274,7 @@ h8300_short_immediate_length (rtx op) ...@@ -2272,7 +2274,7 @@ h8300_short_immediate_length (rtx op)
return 4 + operand_length; return 4 + operand_length;
default: default:
abort (); gcc_unreachable ();
} }
} }
...@@ -2286,8 +2288,7 @@ h8300_bitfield_length (rtx op, rtx op2) ...@@ -2286,8 +2288,7 @@ h8300_bitfield_length (rtx op, rtx op2)
if (GET_CODE (op) == REG) if (GET_CODE (op) == REG)
op = op2; op = op2;
if (GET_CODE (op) == REG) gcc_assert (GET_CODE (op) != REG);
abort ();
size = GET_MODE_SIZE (GET_MODE (op)); size = GET_MODE_SIZE (GET_MODE (op));
operand_length = h8300_classify_operand (op, size, &class); operand_length = h8300_classify_operand (op, size, &class);
...@@ -2300,7 +2301,7 @@ h8300_bitfield_length (rtx op, rtx op2) ...@@ -2300,7 +2301,7 @@ h8300_bitfield_length (rtx op, rtx op2)
return 4 + operand_length; return 4 + operand_length;
default: default:
abort (); gcc_unreachable ();
} }
} }
...@@ -2312,18 +2313,18 @@ h8300_binary_length (rtx insn, const h8300_length_table *table) ...@@ -2312,18 +2313,18 @@ h8300_binary_length (rtx insn, const h8300_length_table *table)
rtx set; rtx set;
set = single_set (insn); set = single_set (insn);
if (set == 0) gcc_assert (set);
abort ();
if (BINARY_P (SET_SRC (set))) if (BINARY_P (SET_SRC (set)))
return h8300_length_from_table (XEXP (SET_SRC (set), 0), return h8300_length_from_table (XEXP (SET_SRC (set), 0),
XEXP (SET_SRC (set), 1), table); XEXP (SET_SRC (set), 1), table);
else if (GET_RTX_CLASS (GET_CODE (SET_SRC (set))) == RTX_TERNARY)
return h8300_length_from_table (XEXP (XEXP (SET_SRC (set), 1), 0),
XEXP (XEXP (SET_SRC (set), 1), 1),
table);
else else
abort (); {
gcc_assert (GET_RTX_CLASS (GET_CODE (SET_SRC (set))) == RTX_TERNARY);
return h8300_length_from_table (XEXP (XEXP (SET_SRC (set), 1), 0),
XEXP (XEXP (SET_SRC (set), 1), 1),
table);
}
} }
/* Subroutine of h8300_move_length. Return true if OP is 1- or 2-byte /* Subroutine of h8300_move_length. Return true if OP is 1- or 2-byte
...@@ -2401,7 +2402,7 @@ h8300_insn_length_from_table (rtx insn, rtx * operands) ...@@ -2401,7 +2402,7 @@ h8300_insn_length_from_table (rtx insn, rtx * operands)
switch (get_attr_length_table (insn)) switch (get_attr_length_table (insn))
{ {
case LENGTH_TABLE_NONE: case LENGTH_TABLE_NONE:
abort (); gcc_unreachable ();
case LENGTH_TABLE_ADDB: case LENGTH_TABLE_ADDB:
return h8300_binary_length (insn, &addb_length_table); return h8300_binary_length (insn, &addb_length_table);
...@@ -2444,9 +2445,10 @@ h8300_insn_length_from_table (rtx insn, rtx * operands) ...@@ -2444,9 +2445,10 @@ h8300_insn_length_from_table (rtx insn, rtx * operands)
case LENGTH_TABLE_BITBRANCH: case LENGTH_TABLE_BITBRANCH:
return h8300_bitfield_length (operands[1], operands[2]) - 2; return h8300_bitfield_length (operands[1], operands[2]) - 2;
default:
gcc_unreachable ();
} }
abort ();
} }
/* Return true if LHS and RHS are memory references that can be mapped /* Return true if LHS and RHS are memory references that can be mapped
...@@ -2711,7 +2713,7 @@ compute_mov_length (rtx *operands) ...@@ -2711,7 +2713,7 @@ compute_mov_length (rtx *operands)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Adjust the length based on the addressing mode used. /* Adjust the length based on the addressing mode used.
...@@ -2831,7 +2833,7 @@ compute_mov_length (rtx *operands) ...@@ -2831,7 +2833,7 @@ compute_mov_length (rtx *operands)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Adjust the length based on the addressing mode used. /* Adjust the length based on the addressing mode used.
...@@ -2875,8 +2877,7 @@ output_plussi (rtx *operands) ...@@ -2875,8 +2877,7 @@ output_plussi (rtx *operands)
{ {
enum machine_mode mode = GET_MODE (operands[0]); enum machine_mode mode = GET_MODE (operands[0]);
if (mode != SImode) gcc_assert (mode == SImode);
abort ();
if (TARGET_H8300) if (TARGET_H8300)
{ {
...@@ -2960,8 +2961,7 @@ compute_plussi_length (rtx *operands) ...@@ -2960,8 +2961,7 @@ compute_plussi_length (rtx *operands)
{ {
enum machine_mode mode = GET_MODE (operands[0]); enum machine_mode mode = GET_MODE (operands[0]);
if (mode != SImode) gcc_assert (mode == SImode);
abort ();
if (TARGET_H8300) if (TARGET_H8300)
{ {
...@@ -3040,8 +3040,7 @@ compute_plussi_cc (rtx *operands) ...@@ -3040,8 +3040,7 @@ compute_plussi_cc (rtx *operands)
{ {
enum machine_mode mode = GET_MODE (operands[0]); enum machine_mode mode = GET_MODE (operands[0]);
if (mode != SImode) gcc_assert (mode == SImode);
abort ();
if (TARGET_H8300) if (TARGET_H8300)
{ {
...@@ -3135,7 +3134,7 @@ output_logical_op (enum machine_mode mode, rtx *operands) ...@@ -3135,7 +3134,7 @@ output_logical_op (enum machine_mode mode, rtx *operands)
opname = "xor"; opname = "xor";
break; break;
default: default:
abort (); gcc_unreachable ();
} }
switch (mode) switch (mode)
...@@ -3267,7 +3266,7 @@ output_logical_op (enum machine_mode mode, rtx *operands) ...@@ -3267,7 +3266,7 @@ output_logical_op (enum machine_mode mode, rtx *operands)
} }
break; break;
default: default:
abort (); gcc_unreachable ();
} }
return ""; return "";
} }
...@@ -3413,7 +3412,7 @@ compute_logical_op_length (enum machine_mode mode, rtx *operands) ...@@ -3413,7 +3412,7 @@ compute_logical_op_length (enum machine_mode mode, rtx *operands)
} }
break; break;
default: default:
abort (); gcc_unreachable ();
} }
return length; return length;
} }
...@@ -3495,7 +3494,7 @@ compute_logical_op_cc (enum machine_mode mode, rtx *operands) ...@@ -3495,7 +3494,7 @@ compute_logical_op_cc (enum machine_mode mode, rtx *operands)
} }
break; break;
default: default:
abort (); gcc_unreachable ();
} }
return cc; return cc;
} }
...@@ -3633,7 +3632,7 @@ output_h8sx_shift (rtx *operands, int suffix, int optype) ...@@ -3633,7 +3632,7 @@ output_h8sx_shift (rtx *operands, int suffix, int optype)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
if (operands[2] == const1_rtx) if (operands[2] == const1_rtx)
sprintf (buffer, "%s.%c\t%%%c0", stem, suffix, optype); sprintf (buffer, "%s.%c\t%%%c0", stem, suffix, optype);
...@@ -3914,7 +3913,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -3914,7 +3913,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Fill in INFO. Return unless we have SHIFT_SPECIAL. */ /* Fill in INFO. Return unless we have SHIFT_SPECIAL. */
...@@ -3953,12 +3952,9 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -3953,12 +3952,9 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
case QIshift: case QIshift:
/* For ASHIFTRT by 7 bits, the sign bit is simply replicated /* For ASHIFTRT by 7 bits, the sign bit is simply replicated
through the entire value. */ through the entire value. */
if (shift_type == SHIFT_ASHIFTRT && count == 7) gcc_assert (shift_type == SHIFT_ASHIFTRT && count == 7);
{ info->special = "shll\t%X0\n\tsubx\t%X0,%X0";
info->special = "shll\t%X0\n\tsubx\t%X0,%X0"; goto end;
goto end;
}
abort ();
case HIshift: case HIshift:
if (count == 7) if (count == 7)
...@@ -4040,7 +4036,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4040,7 +4036,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
info->cc_special = CC_SET_ZNV; info->cc_special = CC_SET_ZNV;
} }
else /* TARGET_H8300S */ else /* TARGET_H8300S */
abort (); gcc_unreachable ();
goto end; goto end;
} }
} }
...@@ -4059,7 +4055,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4059,7 +4055,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
goto end; goto end;
} }
} }
abort (); gcc_unreachable ();
case SIshift: case SIshift:
if (TARGET_H8300 && 8 <= count && count <= 9) if (TARGET_H8300 && 8 <= count && count <= 9)
...@@ -4100,7 +4096,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4100,7 +4096,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
switch (shift_type) switch (shift_type)
{ {
case SHIFT_ASHIFT: case SHIFT_ASHIFT:
abort (); gcc_unreachable ();
case SHIFT_LSHIFTRT: case SHIFT_LSHIFTRT:
info->special = "bld\t#7,%z0\n\tmov.w\t%e0,%f0\n\txor\t%y0,%y0\n\txor\t%z0,%z0\n\trotxl\t%w0\n\trotxl\t%x0\n\trotxl\t%y0"; info->special = "bld\t#7,%z0\n\tmov.w\t%e0,%f0\n\txor\t%y0,%y0\n\txor\t%z0,%z0\n\trotxl\t%w0\n\trotxl\t%x0\n\trotxl\t%y0";
goto end; goto end;
...@@ -4122,7 +4118,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4122,7 +4118,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
info->cc_special = CC_SET_ZNV; info->cc_special = CC_SET_ZNV;
goto end; goto end;
case SHIFT_ASHIFTRT: case SHIFT_ASHIFTRT:
abort (); gcc_unreachable ();
} }
} }
else if ((TARGET_H8300 && 16 <= count && count <= 20) else if ((TARGET_H8300 && 16 <= count && count <= 20)
...@@ -4227,7 +4223,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4227,7 +4223,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
info->special = "sub.w\t%f0,%f0\n\trotl.l\t#2,%S0\n\trotl.l\t#2,%S0\n\textu.l\t%S0"; info->special = "sub.w\t%f0,%f0\n\trotl.l\t#2,%S0\n\trotl.l\t#2,%S0\n\textu.l\t%S0";
goto end; goto end;
case SHIFT_ASHIFTRT: case SHIFT_ASHIFTRT:
abort (); gcc_unreachable ();
} }
} }
else if (!TARGET_H8300 && count == 29) else if (!TARGET_H8300 && count == 29)
...@@ -4253,7 +4249,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4253,7 +4249,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
} }
goto end; goto end;
case SHIFT_ASHIFTRT: case SHIFT_ASHIFTRT:
abort (); gcc_unreachable ();
} }
} }
else if (!TARGET_H8300 && count == 30) else if (!TARGET_H8300 && count == 30)
...@@ -4273,7 +4269,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4273,7 +4269,7 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
info->special = "sub.w\t%f0,%f0\n\trotl.l\t#2,%S0\n\textu.l\t%S0"; info->special = "sub.w\t%f0,%f0\n\trotl.l\t#2,%S0\n\textu.l\t%S0";
goto end; goto end;
case SHIFT_ASHIFTRT: case SHIFT_ASHIFTRT:
abort (); gcc_unreachable ();
} }
} }
else if (count == 31) else if (count == 31)
...@@ -4312,10 +4308,10 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode, ...@@ -4312,10 +4308,10 @@ get_shift_alg (enum shift_type shift_type, enum shift_mode shift_mode,
} }
} }
} }
abort (); gcc_unreachable ();
default: default:
abort (); gcc_unreachable ();
} }
end: end:
...@@ -4365,7 +4361,7 @@ h8300_shift_needs_scratch_p (int count, enum machine_mode mode) ...@@ -4365,7 +4361,7 @@ h8300_shift_needs_scratch_p (int count, enum machine_mode mode)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* On H8/300H, count == 8 uses a scratch register. */ /* On H8/300H, count == 8 uses a scratch register. */
...@@ -4385,6 +4381,7 @@ output_a_shift (rtx *operands) ...@@ -4385,6 +4381,7 @@ output_a_shift (rtx *operands)
enum shift_type shift_type; enum shift_type shift_type;
enum shift_mode shift_mode; enum shift_mode shift_mode;
struct shift_info info; struct shift_info info;
int n;
loopend_lab++; loopend_lab++;
...@@ -4400,7 +4397,7 @@ output_a_shift (rtx *operands) ...@@ -4400,7 +4397,7 @@ output_a_shift (rtx *operands)
shift_mode = SIshift; shift_mode = SIshift;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
switch (code) switch (code)
...@@ -4415,115 +4412,117 @@ output_a_shift (rtx *operands) ...@@ -4415,115 +4412,117 @@ output_a_shift (rtx *operands)
shift_type = SHIFT_ASHIFT; shift_type = SHIFT_ASHIFT;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
if (GET_CODE (operands[2]) != CONST_INT) /* This case must be taken care of by one of the two splitters
{ that convert a variable shift into a loop. */
/* This case must be taken care of by one of the two splitters gcc_assert (GET_CODE (operands[2]) == CONST_INT);
that convert a variable shift into a loop. */
abort (); n = INTVAL (operands[2]);
}
else /* If the count is negative, make it 0. */
if (n < 0)
n = 0;
/* If the count is too big, truncate it.
ANSI says shifts of GET_MODE_BITSIZE are undefined - we choose to
do the intuitive thing. */
else if ((unsigned int) n > GET_MODE_BITSIZE (mode))
n = GET_MODE_BITSIZE (mode);
get_shift_alg (shift_type, shift_mode, n, &info);
switch (info.alg)
{ {
int n = INTVAL (operands[2]); case SHIFT_SPECIAL:
output_asm_insn (info.special, operands);
/* If the count is negative, make it 0. */ /* Fall through. */
if (n < 0)
n = 0;
/* If the count is too big, truncate it.
ANSI says shifts of GET_MODE_BITSIZE are undefined - we choose to
do the intuitive thing. */
else if ((unsigned int) n > GET_MODE_BITSIZE (mode))
n = GET_MODE_BITSIZE (mode);
get_shift_alg (shift_type, shift_mode, n, &info); case SHIFT_INLINE:
n = info.remainder;
switch (info.alg) /* Emit two bit shifts first. */
if (info.shift2 != NULL)
{ {
case SHIFT_SPECIAL: for (; n > 1; n -= 2)
output_asm_insn (info.special, operands); output_asm_insn (info.shift2, operands);
/* Fall through. */ }
case SHIFT_INLINE:
n = info.remainder;
/* Emit two bit shifts first. */
if (info.shift2 != NULL)
{
for (; n > 1; n -= 2)
output_asm_insn (info.shift2, operands);
}
/* Now emit one bit shifts for any residual. */
for (; n > 0; n--)
output_asm_insn (info.shift1, operands);
return "";
case SHIFT_ROT_AND: /* Now emit one bit shifts for any residual. */
for (; n > 0; n--)
output_asm_insn (info.shift1, operands);
return "";
case SHIFT_ROT_AND:
{
int m = GET_MODE_BITSIZE (mode) - n;
const int mask = (shift_type == SHIFT_ASHIFT
? ((1 << m) - 1) << n
: (1 << m) - 1);
char insn_buf[200];
/* Not all possibilities of rotate are supported. They shouldn't
be generated, but let's watch for 'em. */
gcc_assert (info.shift1);
/* Emit two bit rotates first. */
if (info.shift2 != NULL)
{ {
int m = GET_MODE_BITSIZE (mode) - n; for (; m > 1; m -= 2)
const int mask = (shift_type == SHIFT_ASHIFT output_asm_insn (info.shift2, operands);
? ((1 << m) - 1) << n }
: (1 << m) - 1);
char insn_buf[200]; /* Now single bit rotates for any residual. */
for (; m > 0; m--)
/* Not all possibilities of rotate are supported. They shouldn't output_asm_insn (info.shift1, operands);
be generated, but let's watch for 'em. */
if (info.shift1 == 0) /* Now mask off the high bits. */
abort (); switch (mode)
{
/* Emit two bit rotates first. */ case QImode:
if (info.shift2 != NULL) sprintf (insn_buf, "and\t#%d,%%X0", mask);
{ break;
for (; m > 1; m -= 2)
output_asm_insn (info.shift2, operands);
}
/* Now single bit rotates for any residual. */ case HImode:
for (; m > 0; m--) gcc_assert (TARGET_H8300H || TARGET_H8300S);
output_asm_insn (info.shift1, operands); sprintf (insn_buf, "and.w\t#%d,%%T0", mask);
break;
/* Now mask off the high bits. */ default:
if (mode == QImode) gcc_unreachable ();
sprintf (insn_buf, "and\t#%d,%%X0", mask);
else if (mode == HImode && (TARGET_H8300H || TARGET_H8300S))
sprintf (insn_buf, "and.w\t#%d,%%T0", mask);
else
abort ();
output_asm_insn (insn_buf, operands);
return "";
} }
case SHIFT_LOOP: output_asm_insn (insn_buf, operands);
/* A loop to shift by a "large" constant value. return "";
If we have shift-by-2 insns, use them. */ }
if (info.shift2 != NULL)
{
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n / 2,
names_big[REGNO (operands[4])]);
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
output_asm_insn (info.shift2, operands);
output_asm_insn ("add #0xff,%X4", operands);
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
if (n % 2)
output_asm_insn (info.shift1, operands);
}
else
{
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n,
names_big[REGNO (operands[4])]);
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
output_asm_insn (info.shift1, operands);
output_asm_insn ("add #0xff,%X4", operands);
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
}
return "";
default: case SHIFT_LOOP:
abort (); /* A loop to shift by a "large" constant value.
If we have shift-by-2 insns, use them. */
if (info.shift2 != NULL)
{
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n / 2,
names_big[REGNO (operands[4])]);
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
output_asm_insn (info.shift2, operands);
output_asm_insn ("add #0xff,%X4", operands);
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
if (n % 2)
output_asm_insn (info.shift1, operands);
}
else
{
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n,
names_big[REGNO (operands[4])]);
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
output_asm_insn (info.shift1, operands);
output_asm_insn ("add #0xff,%X4", operands);
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
} }
return "";
default:
gcc_unreachable ();
} }
} }
...@@ -4566,7 +4565,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4566,7 +4565,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
shift_mode = SIshift; shift_mode = SIshift;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
switch (code) switch (code)
...@@ -4581,7 +4580,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4581,7 +4580,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
shift_type = SHIFT_ASHIFT; shift_type = SHIFT_ASHIFT;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
if (GET_CODE (operands[2]) != CONST_INT) if (GET_CODE (operands[2]) != CONST_INT)
...@@ -4639,8 +4638,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4639,8 +4638,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
/* Not all possibilities of rotate are supported. They shouldn't /* Not all possibilities of rotate are supported. They shouldn't
be generated, but let's watch for 'em. */ be generated, but let's watch for 'em. */
if (info.shift1 == 0) gcc_assert (info.shift1);
abort ();
if (info.shift2 != NULL) if (info.shift2 != NULL)
{ {
...@@ -4660,12 +4658,11 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4660,12 +4658,11 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
wlength += 2; wlength += 2;
break; break;
case SImode: case SImode:
if (TARGET_H8300) gcc_assert (!TARGET_H8300);
abort ();
wlength += 3; wlength += 3;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
return 2 * wlength; return 2 * wlength;
} }
...@@ -4686,7 +4683,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4686,7 +4683,7 @@ compute_a_shift_length (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
return 2 * wlength; return 2 * wlength;
default: default:
abort (); gcc_unreachable ();
} }
} }
} }
...@@ -4702,7 +4699,8 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4702,7 +4699,8 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
enum shift_type shift_type; enum shift_type shift_type;
enum shift_mode shift_mode; enum shift_mode shift_mode;
struct shift_info info; struct shift_info info;
int n;
switch (mode) switch (mode)
{ {
case QImode: case QImode:
...@@ -4715,7 +4713,7 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4715,7 +4713,7 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
shift_mode = SIshift; shift_mode = SIshift;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
switch (code) switch (code)
...@@ -4730,58 +4728,53 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands) ...@@ -4730,58 +4728,53 @@ compute_a_shift_cc (rtx insn ATTRIBUTE_UNUSED, rtx *operands)
shift_type = SHIFT_ASHIFT; shift_type = SHIFT_ASHIFT;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
if (GET_CODE (operands[2]) != CONST_INT) /* This case must be taken care of by one of the two splitters
{ that convert a variable shift into a loop. */
/* This case must be taken care of by one of the two splitters gcc_assert (GET_CODE (operands[2]) == CONST_INT);
that convert a variable shift into a loop. */
abort (); n = INTVAL (operands[2]);
}
else /* If the count is negative, make it 0. */
if (n < 0)
n = 0;
/* If the count is too big, truncate it.
ANSI says shifts of GET_MODE_BITSIZE are undefined - we choose to
do the intuitive thing. */
else if ((unsigned int) n > GET_MODE_BITSIZE (mode))
n = GET_MODE_BITSIZE (mode);
get_shift_alg (shift_type, shift_mode, n, &info);
switch (info.alg)
{ {
int n = INTVAL (operands[2]); case SHIFT_SPECIAL:
if (info.remainder == 0)
/* If the count is negative, make it 0. */ return info.cc_special;
if (n < 0)
n = 0;
/* If the count is too big, truncate it.
ANSI says shifts of GET_MODE_BITSIZE are undefined - we choose to
do the intuitive thing. */
else if ((unsigned int) n > GET_MODE_BITSIZE (mode))
n = GET_MODE_BITSIZE (mode);
get_shift_alg (shift_type, shift_mode, n, &info); /* Fall through. */
switch (info.alg) case SHIFT_INLINE:
return info.cc_inline;
case SHIFT_ROT_AND:
/* This case always ends with an and instruction. */
return CC_SET_ZNV;
case SHIFT_LOOP:
/* A loop to shift by a "large" constant value.
If we have shift-by-2 insns, use them. */
if (info.shift2 != NULL)
{ {
case SHIFT_SPECIAL: if (n % 2)
if (info.remainder == 0) return info.cc_inline;
return info.cc_special;
/* Fall through. */
case SHIFT_INLINE:
return info.cc_inline;
case SHIFT_ROT_AND:
/* This case always ends with an and instruction. */
return CC_SET_ZNV;
case SHIFT_LOOP:
/* A loop to shift by a "large" constant value.
If we have shift-by-2 insns, use them. */
if (info.shift2 != NULL)
{
if (n % 2)
return info.cc_inline;
}
return CC_CLOBBER;
default:
abort ();
} }
return CC_CLOBBER;
default:
gcc_unreachable ();
} }
} }
...@@ -4833,7 +4826,7 @@ expand_a_rotate (rtx operands[]) ...@@ -4833,7 +4826,7 @@ expand_a_rotate (rtx operands[])
emit_insn (gen_rotlsi3_1 (dst, dst, const1_rtx)); emit_insn (gen_rotlsi3_1 (dst, dst, const1_rtx));
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Decrement the counter by 1. */ /* Decrement the counter by 1. */
...@@ -4861,7 +4854,7 @@ expand_a_rotate (rtx operands[]) ...@@ -4861,7 +4854,7 @@ expand_a_rotate (rtx operands[])
emit_insn (gen_rotlsi3_1 (dst, dst, rotate_amount)); emit_insn (gen_rotlsi3_1 (dst, dst, rotate_amount));
break; break;
default: default:
abort (); gcc_unreachable ();
} }
} }
...@@ -4882,8 +4875,7 @@ output_a_rotate (enum rtx_code code, rtx *operands) ...@@ -4882,8 +4875,7 @@ output_a_rotate (enum rtx_code code, rtx *operands)
int amount; int amount;
enum machine_mode mode = GET_MODE (dst); enum machine_mode mode = GET_MODE (dst);
if (GET_CODE (rotate_amount) != CONST_INT) gcc_assert (GET_CODE (rotate_amount) == CONST_INT);
abort ();
switch (mode) switch (mode)
{ {
...@@ -4897,7 +4889,7 @@ output_a_rotate (enum rtx_code code, rtx *operands) ...@@ -4897,7 +4889,7 @@ output_a_rotate (enum rtx_code code, rtx *operands)
rotate_mode = SIshift; rotate_mode = SIshift;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
switch (code) switch (code)
...@@ -4909,7 +4901,7 @@ output_a_rotate (enum rtx_code code, rtx *operands) ...@@ -4909,7 +4901,7 @@ output_a_rotate (enum rtx_code code, rtx *operands)
rotate_type = SHIFT_LSHIFTRT; rotate_type = SHIFT_LSHIFTRT;
break; break;
default: default:
abort (); gcc_unreachable ();
} }
amount = INTVAL (rotate_amount); amount = INTVAL (rotate_amount);
...@@ -4953,7 +4945,7 @@ output_a_rotate (enum rtx_code code, rtx *operands) ...@@ -4953,7 +4945,7 @@ output_a_rotate (enum rtx_code code, rtx *operands)
break; break;
default: default:
abort (); gcc_unreachable ();
} }
/* Adjust AMOUNT and flip the direction. */ /* Adjust AMOUNT and flip the direction. */
...@@ -4988,8 +4980,7 @@ compute_a_rotate_length (rtx *operands) ...@@ -4988,8 +4980,7 @@ compute_a_rotate_length (rtx *operands)
int amount; int amount;
unsigned int length = 0; unsigned int length = 0;
if (GET_CODE (amount_rtx) != CONST_INT) gcc_assert (GET_CODE (amount_rtx) == CONST_INT);
abort ();
amount = INTVAL (amount_rtx); amount = INTVAL (amount_rtx);
...@@ -5083,7 +5074,7 @@ fix_bit_operand (rtx *operands, enum rtx_code code) ...@@ -5083,7 +5074,7 @@ fix_bit_operand (rtx *operands, enum rtx_code code)
emit_insn (gen_xorqi3_1 (res, operands[1], operands[2])); emit_insn (gen_xorqi3_1 (res, operands[1], operands[2]));
break; break;
default: default:
abort (); gcc_unreachable ();
} }
emit_insn (gen_movqi (operands[0], res)); emit_insn (gen_movqi (operands[0], res));
} }
...@@ -5598,9 +5589,9 @@ h8300_regs_ok_for_stm (int n, rtx operands[]) ...@@ -5598,9 +5589,9 @@ h8300_regs_ok_for_stm (int n, rtx operands[])
&& REGNO (operands[1]) == 1 && REGNO (operands[1]) == 1
&& REGNO (operands[2]) == 2 && REGNO (operands[2]) == 2
&& REGNO (operands[3]) == 3); && REGNO (operands[3]) == 3);
default:
gcc_unreachable ();
} }
abort ();
} }
/* Return nonzero if register OLD_REG can be renamed to register NEW_REG. */ /* Return nonzero if register OLD_REG can be renamed to register NEW_REG. */
......
gcc/config/h8300/h8300.md
...@@ -423,7 +423,7 @@ ...@@ -423,7 +423,7 @@
case 5: case 5:
return \"mov.w %T1,%e0\;mov.w %T1,%f0\"; return \"mov.w %T1,%e0\;mov.w %T1,%f0\";
default: default:
abort (); gcc_unreachable ();
} }
}" }"
[(set (attr "length") [(set (attr "length")
...@@ -844,7 +844,7 @@ ...@@ -844,7 +844,7 @@
case 5: case 5:
return \"mov.w %T1,%e0\;mov.w %T1,%f0\"; return \"mov.w %T1,%e0\;mov.w %T1,%f0\";
default: default:
abort (); gcc_unreachable ();
} }
}" }"
[(set (attr "length") [(set (attr "length")
...@@ -2604,7 +2604,7 @@ ...@@ -2604,7 +2604,7 @@
return \"mov.l\\ter0,@-er7\;stc\\tccr,r0l\;mov.b\\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\\t#128,ccr\"; return \"mov.l\\ter0,@-er7\;stc\\tccr,r0l\;mov.b\\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\\t#128,ccr\";
else if (TARGET_H8300S) else if (TARGET_H8300S)
return \"stc\texr,@-er7\;mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(6,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr\"; return \"stc\texr,@-er7\;mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(6,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr\";
abort (); gcc_unreachable ();
}" }"
[(set_attr "length" "20")]) [(set_attr "length" "20")])
......
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