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re PR target/50465 ([avr] Use insn attribute to depict if and how instruction lengths have to be adjusted) 

PR target/50465
	* config/avr/avr-protos.h (output_reload_insisf): Don't pass insn.
	* config/avr/avr.md (*reload_insi, *reload_insf): Change call to
	output_reload_insisf.
	(adjust_len): Set default to "no".
	Remove alternative "yes".  Add alternatives: "mov8", "mov16",
	"mov32", "ashlqi", "ashrqi", "lshrqi", "ashlhi", "ashrhi",
	"lshrhi", "ashlsi, "ashrsi", "lshrsi".
	(*movqi, *movhi, *movsi, *ashlqi3, ashlhi3, ashlsi3,
	*ashlhi3_const, *ashlsi3_const, ashrqi3, ashrhi3, ashrsi3,
	*ashrhi3_const, *ashrsi3_const, *lshrqi3, lshrhi3, *lshrhi3_const,
	*lshrsi3_const): Set attribute "adjust_len".
	* config/avr/avr.c (output_reload_insisf): Remove parameter "insn".
	(output_movsisf): Don't pass insn to output_reload_insisf.
	(adjust_insn_length): Handle new alternatives to adjust_len.
	Remove handling of ADJUST_LEN_YES.  Clean-up code.

From-SVN: r179191
This commit is contained in:
Georg-Johann Lay 2011-09-26 11:53:40 +00:00 committed by Georg-Johann Lay
parent 2d0dd51a1a
commit 8a6a05ce93
4 changed files with 100 additions and 136 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
gcc/ChangeLog
View File

@ -1,3 +1,22 @@
2011-09-26 Georg-Johann Lay <avr@gjlay.de>
PR target/50465
* config/avr/avr-protos.h (output_reload_insisf): Don't pass insn.
* config/avr/avr.md (*reload_insi, *reload_insf): Change call to
output_reload_insisf.
(adjust_len): Set default to "no".
Remove alternative "yes". Add alternatives: "mov8", "mov16",
"mov32", "ashlqi", "ashrqi", "lshrqi", "ashlhi", "ashrhi",
"lshrhi", "ashlsi, "ashrsi", "lshrsi".
(*movqi, *movhi, *movsi, *ashlqi3, ashlhi3, ashlsi3,
*ashlhi3_const, *ashlsi3_const, ashrqi3, ashrhi3, ashrsi3,
*ashrhi3_const, *ashrsi3_const, *lshrqi3, lshrhi3, *lshrhi3_const,
*lshrsi3_const): Set attribute "adjust_len".
* config/avr/avr.c (output_reload_insisf): Remove parameter "insn".
(output_movsisf): Don't pass insn to output_reload_insisf.
(adjust_insn_length): Handle new alternatives to adjust_len.
Remove handling of ADJUST_LEN_YES. Clean-up code.
2011-09-26 Eric Botcazou <ebotcazou@adacore.com>
* ifcvt.c (noce_try_cmove_arith): Use may_trap_or_fault_p in lieu of

2
gcc/config/avr/avr-protos.h
View File

@ -88,7 +88,7 @@ extern bool avr_popcount_each_byte (rtx, int, int);
extern int extra_constraint_Q (rtx x);
extern int adjust_insn_length (rtx insn, int len);
extern const char* output_reload_inhi (rtx*, rtx, int*);
extern const char *output_reload_insisf (rtx insn, rtx *operands, rtx clobber, int *len);
extern const char* output_reload_insisf (rtx*, rtx, int*);
extern void notice_update_cc (rtx body, rtx insn);
extern void print_operand (FILE *file, rtx x, int code);
extern void print_operand_address (FILE *file, rtx addr);

165
gcc/config/avr/avr.c
View File

@ -2691,7 +2691,7 @@ output_movsisf (rtx insn, rtx operands[], int *l)
else if (CONST_INT_P (src)
|| CONST_DOUBLE_P (src))
{
return output_reload_insisf (insn, operands, NULL_RTX, real_l);
return output_reload_insisf (operands, NULL_RTX, real_l);
}
else if (CONSTANT_P (src))
{
@ -5019,7 +5019,7 @@ avr_rotate_bytes (rtx operands[])
int
adjust_insn_length (rtx insn, int len)
{
rtx patt, set;
rtx *op = recog_data.operand;
enum attr_adjust_len adjust_len;
/* Some complex insns don't need length adjustment and therefore
@ -5036,131 +5036,53 @@ adjust_insn_length (rtx insn, int len)
adjust_len = get_attr_adjust_len (insn);
if (adjust_len != ADJUST_LEN_YES)
if (adjust_len == ADJUST_LEN_NO)
{
rtx *op = recog_data.operand;
if (adjust_len == ADJUST_LEN_NO)
{
/* Nothing to adjust: The length from attribute "length" is fine. */
return len;
}
/* Extract insn's operands. */
extract_constrain_insn_cached (insn);
/* Dispatch to right function. */
switch (adjust_len)
{
case ADJUST_LEN_RELOAD_IN16:
output_reload_inhi (op, op[2], &len);
break;
case ADJUST_LEN_RELOAD_IN32:
output_reload_insisf (insn, op, op[2], &len);
break;
case ADJUST_LEN_OUT_BITOP:
avr_out_bitop (insn, op, &len);
break;
case ADJUST_LEN_OUT_PLUS:
avr_out_plus (op, &len);
break;
case ADJUST_LEN_TSTHI: avr_out_tsthi (insn, op, &len); break;
case ADJUST_LEN_TSTSI: avr_out_tstsi (insn, op, &len); break;
case ADJUST_LEN_COMPARE: avr_out_compare (insn, op, &len); break;
default:
gcc_unreachable();
}
/* Nothing to adjust: The length from attribute "length" is fine.
This is the default. */
return len;
} /* adjust_length != ADJUST_LEN_YES */
/* adjust_len == "yes": Analyse insn by hand. */
}
patt = PATTERN (insn);
if (GET_CODE (patt) == SET)
/* Extract insn's operands. */
extract_constrain_insn_cached (insn);
/* Dispatch to right function. */
switch (adjust_len)
{
rtx op[10];
op[1] = SET_SRC (patt);
op[0] = SET_DEST (patt);
if (general_operand (op[1], VOIDmode)
&& general_operand (op[0], VOIDmode))
{
switch (GET_MODE (op[0]))
{
case QImode:
output_movqi (insn, op, &len);
break;
case HImode:
output_movhi (insn, op, &len);
break;
case SImode:
case SFmode:
output_movsisf (insn, op, &len);
break;
default:
break;
}
}
}
set = single_set (insn);
if (set)
{
rtx op[10];
case ADJUST_LEN_RELOAD_IN16: output_reload_inhi (op, op[2], &len); break;
case ADJUST_LEN_RELOAD_IN32: output_reload_insisf (op, op[2], &len); break;
case ADJUST_LEN_OUT_BITOP: avr_out_bitop (insn, op, &len); break;
case ADJUST_LEN_OUT_PLUS: avr_out_plus (op, &len); break;
case ADJUST_LEN_MOV8: output_movqi (insn, op, &len); break;
case ADJUST_LEN_MOV16: output_movhi (insn, op, &len); break;
case ADJUST_LEN_MOV32: output_movsisf (insn, op, &len); break;
case ADJUST_LEN_TSTHI: avr_out_tsthi (insn, op, &len); break;
case ADJUST_LEN_TSTSI: avr_out_tstsi (insn, op, &len); break;
case ADJUST_LEN_COMPARE: avr_out_compare (insn, op, &len); break;
op[1] = SET_SRC (set);
op[0] = SET_DEST (set);
case ADJUST_LEN_LSHRQI: lshrqi3_out (insn, op, &len); break;
case ADJUST_LEN_LSHRHI: lshrhi3_out (insn, op, &len); break;
case ADJUST_LEN_LSHRSI: lshrsi3_out (insn, op, &len); break;
if (GET_CODE (op[1]) == ASHIFT
|| GET_CODE (op[1]) == ASHIFTRT
|| GET_CODE (op[1]) == LSHIFTRT)
{
rtx ops[10];
ops[0] = op[0];
ops[1] = XEXP (op[1],0);
ops[2] = XEXP (op[1],1);
switch (GET_CODE (op[1]))
{
case ASHIFT:
switch (GET_MODE (op[0]))
{
case QImode: ashlqi3_out (insn,ops,&len); break;
case HImode: ashlhi3_out (insn,ops,&len); break;
case SImode: ashlsi3_out (insn,ops,&len); break;
default: break;
}
break;
case ASHIFTRT:
switch (GET_MODE (op[0]))
{
case QImode: ashrqi3_out (insn,ops,&len); break;
case HImode: ashrhi3_out (insn,ops,&len); break;
case SImode: ashrsi3_out (insn,ops,&len); break;
default: break;
}
break;
case LSHIFTRT:
switch (GET_MODE (op[0]))
{
case QImode: lshrqi3_out (insn,ops,&len); break;
case HImode: lshrhi3_out (insn,ops,&len); break;
case SImode: lshrsi3_out (insn,ops,&len); break;
default: break;
}
break;
default:
break;
}
}
case ADJUST_LEN_ASHRQI: ashrqi3_out (insn, op, &len); break;
case ADJUST_LEN_ASHRHI: ashrhi3_out (insn, op, &len); break;
case ADJUST_LEN_ASHRSI: ashrsi3_out (insn, op, &len); break;
case ADJUST_LEN_ASHLQI: ashlqi3_out (insn, op, &len); break;
case ADJUST_LEN_ASHLHI: ashlhi3_out (insn, op, &len); break;
case ADJUST_LEN_ASHLSI: ashlsi3_out (insn, op, &len); break;
default:
gcc_unreachable();
}
return len;
}
@ -7064,7 +6986,7 @@ avr_hard_regno_mode_ok (int regno, enum machine_mode mode)
}
/* A helper for `output_reload_insisf'. */
/* A helper for `output_reload_insisf' and `output_reload_inhi'. */
/* Set 32-bit register OP[0] to compile-time constant OP[1].
CLOBBER_REG is a QI clobber register or NULL_RTX.
LEN == NULL: output instructions.
@ -7329,8 +7251,7 @@ output_reload_inhi (rtx *op, rtx clobber_reg, int *plen)
Return "". */
const char *
output_reload_insisf (rtx insn ATTRIBUTE_UNUSED,
rtx *op, rtx clobber_reg, int *len)
output_reload_insisf (rtx *op, rtx clobber_reg, int *len)
{
gcc_assert (REG_P (op[0])
&& CONSTANT_P (op[1]));

50
gcc/config/avr/avr.md
View File

@ -136,8 +136,13 @@
;; Otherwise do special processing depending on the attribute.
(define_attr "adjust_len"
"yes,no,reload_in16,reload_in32,out_bitop,out_plus,tsthi,tstsi,compare"
(const_string "yes"))
"out_bitop, out_plus, tsthi, tstsi, compare,
mov8, mov16, mov32, reload_in16, reload_in32,
ashlqi, ashrqi, lshrqi,
ashlhi, ashrhi, lshrhi,
ashlsi, ashrsi, lshrsi,
no"
(const_string "no"))
;; Define mode iterators
(define_mode_iterator QIHI [(QI "") (HI "")])
@ -297,6 +302,7 @@
|| register_operand (operands[1], QImode) || const0_rtx == operands[1])"
"* return output_movqi (insn, operands, NULL);"
[(set_attr "length" "1,1,5,5,1,1,4")
(set_attr "adjust_len" "mov8")
(set_attr "cc" "none,none,clobber,clobber,none,none,clobber")])
;; This is used in peephole2 to optimize loading immediate constants
@ -401,6 +407,7 @@
|| register_operand (operands[1],HImode) || const0_rtx == operands[1])"
"* return output_movhi (insn, operands, NULL);"
[(set_attr "length" "2,2,6,7,2,6,5,2")
(set_attr "adjust_len" "mov16")
(set_attr "cc" "none,clobber,clobber,clobber,none,clobber,none,none")])
(define_peephole2 ; movw
@ -468,7 +475,7 @@
(clobber (match_operand:QI 2 "register_operand" "=&d"))]
"reload_completed"
{
return output_reload_insisf (insn, operands, operands[2], NULL);
return output_reload_insisf (operands, operands[2], NULL);
}
[(set_attr "length" "8")
(set_attr "adjust_len" "reload_in32")
@ -484,6 +491,7 @@
return output_movsisf (insn, operands, NULL);
}
[(set_attr "length" "4,4,8,9,4,10")
(set_attr "adjust_len" "mov32")
(set_attr "cc" "none,set_zn,clobber,clobber,clobber,clobber")])
;; fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
@ -513,6 +521,7 @@
return output_movsisf (insn, operands, NULL);
}
[(set_attr "length" "4,4,8,9,4,10")
(set_attr "adjust_len" "mov32")
(set_attr "cc" "none,set_zn,clobber,clobber,clobber,clobber")])
(define_peephole2 ; *reload_insf
@ -533,7 +542,7 @@
(clobber (match_operand:QI 2 "register_operand" "=&d"))]
"reload_completed"
{
return output_reload_insisf (insn, operands, operands[2], NULL);
return output_reload_insisf (operands, operands[2], NULL);
}
[(set_attr "length" "8")
(set_attr "adjust_len" "reload_in32")
@ -934,7 +943,7 @@
return asm_code [which_alternative];
}
[(set_attr "length" "4,3,3,4,5,5,8,8")
(set_attr "adjust_len" "no,no,no,no,no,no,out_plus,out_plus")
(set_attr "adjust_len" "*,*,*,*,*,*,out_plus,out_plus")
(set_attr "cc" "set_n,set_n,set_czn,set_czn,set_n,set_n,clobber,clobber")])
(define_insn "*addsi3_zero_extend"
@ -2271,7 +2280,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "2,2,2,4,4")
(set_attr "adjust_len" "no,no,out_bitop,out_bitop,out_bitop")
(set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")
(set_attr "cc" "set_n,set_n,clobber,clobber,clobber")])
(define_insn "andsi3"
@ -2290,7 +2299,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "4,4,8,8")
(set_attr "adjust_len" "no,out_bitop,out_bitop,out_bitop")
(set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
(set_attr "cc" "set_n,clobber,clobber,clobber")])
(define_peephole2 ; andi
@ -2335,7 +2344,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "2,2,2,4,4")
(set_attr "adjust_len" "no,no,out_bitop,out_bitop,out_bitop")
(set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")
(set_attr "cc" "set_n,set_n,clobber,clobber,clobber")])
(define_insn "iorsi3"
@ -2354,7 +2363,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "4,4,8,8")
(set_attr "adjust_len" "no,out_bitop,out_bitop,out_bitop")
(set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
(set_attr "cc" "set_n,clobber,clobber,clobber")])
;;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -2382,7 +2391,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "2,2,4")
(set_attr "adjust_len" "no,out_bitop,out_bitop")
(set_attr "adjust_len" "*,out_bitop,out_bitop")
(set_attr "cc" "set_n,clobber,clobber")])
(define_insn "xorsi3"
@ -2401,7 +2410,7 @@
return avr_out_bitop (insn, operands, NULL);
}
[(set_attr "length" "4,8,8")
(set_attr "adjust_len" "no,out_bitop,out_bitop")
(set_attr "adjust_len" "*,out_bitop,out_bitop")
(set_attr "cc" "set_n,clobber,clobber")])
;; swap swap swap swap swap swap swap swap swap swap swap swap swap swap swap
@ -2623,6 +2632,7 @@
""
"* return ashlqi3_out (insn, operands, NULL);"
[(set_attr "length" "5,0,1,2,4,6,9")
(set_attr "adjust_len" "ashlqi")
(set_attr "cc" "clobber,none,set_czn,set_czn,set_czn,set_czn,clobber")])
(define_insn "ashlhi3"
@ -2632,6 +2642,7 @@
""
"* return ashlhi3_out (insn, operands, NULL);"
[(set_attr "length" "6,0,2,2,4,10,10")
(set_attr "adjust_len" "ashlhi")
(set_attr "cc" "clobber,none,set_n,clobber,set_n,clobber,clobber")])
@ -2723,6 +2734,7 @@
""
"* return ashlsi3_out (insn, operands, NULL);"
[(set_attr "length" "8,0,4,4,8,10,12")
(set_attr "adjust_len" "ashlsi")
(set_attr "cc" "clobber,none,set_n,clobber,set_n,clobber,clobber")])
;; Optimize if a scratch register from LD_REGS happens to be available.
@ -2780,6 +2792,7 @@
"reload_completed"
"* return ashlhi3_out (insn, operands, NULL);"
[(set_attr "length" "0,2,2,4,10")
(set_attr "adjust_len" "ashlhi")
(set_attr "cc" "none,set_n,clobber,set_n,clobber")])
(define_peephole2
@ -2800,6 +2813,7 @@
"reload_completed"
"* return ashlsi3_out (insn, operands, NULL);"
[(set_attr "length" "0,4,4,10")
(set_attr "adjust_len" "ashlsi")
(set_attr "cc" "none,set_n,clobber,clobber")])
;; >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>
@ -2812,6 +2826,7 @@
""
"* return ashrqi3_out (insn, operands, NULL);"
[(set_attr "length" "5,0,1,2,5,9")
(set_attr "adjust_len" "ashrqi")
(set_attr "cc" "clobber,none,clobber,clobber,clobber,clobber")])
(define_insn "ashrhi3"
@ -2821,6 +2836,7 @@
""
"* return ashrhi3_out (insn, operands, NULL);"
[(set_attr "length" "6,0,2,4,4,10,10")
(set_attr "adjust_len" "ashrhi")
(set_attr "cc" "clobber,none,clobber,set_n,clobber,clobber,clobber")])
(define_insn "ashrsi3"
@ -2830,6 +2846,7 @@
""
"* return ashrsi3_out (insn, operands, NULL);"
[(set_attr "length" "8,0,4,6,8,10,12")
(set_attr "adjust_len" "ashrsi")
(set_attr "cc" "clobber,none,clobber,set_n,clobber,clobber,clobber")])
;; Optimize if a scratch register from LD_REGS happens to be available.
@ -2852,6 +2869,7 @@
"reload_completed"
"* return ashrhi3_out (insn, operands, NULL);"
[(set_attr "length" "0,2,4,4,10")
(set_attr "adjust_len" "ashrhi")
(set_attr "cc" "none,clobber,set_n,clobber,clobber")])
(define_peephole2
@ -2872,6 +2890,7 @@
"reload_completed"
"* return ashrsi3_out (insn, operands, NULL);"
[(set_attr "length" "0,4,4,10")
(set_attr "adjust_len" "ashrsi")
(set_attr "cc" "none,clobber,set_n,clobber")])
;; >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>
@ -2920,6 +2939,7 @@
""
"* return lshrqi3_out (insn, operands, NULL);"
[(set_attr "length" "5,0,1,2,4,6,9")
(set_attr "adjust_len" "lshrqi")
(set_attr "cc" "clobber,none,set_czn,set_czn,set_czn,set_czn,clobber")])
(define_insn "lshrhi3"
@ -2929,6 +2949,7 @@
""
"* return lshrhi3_out (insn, operands, NULL);"
[(set_attr "length" "6,0,2,2,4,10,10")
(set_attr "adjust_len" "lshrhi")
(set_attr "cc" "clobber,none,clobber,clobber,clobber,clobber,clobber")])
(define_insn "lshrsi3"
@ -2938,6 +2959,7 @@
""
"* return lshrsi3_out (insn, operands, NULL);"
[(set_attr "length" "8,0,4,4,8,10,12")
(set_attr "adjust_len" "lshrsi")
(set_attr "cc" "clobber,none,clobber,clobber,clobber,clobber,clobber")])
;; Optimize if a scratch register from LD_REGS happens to be available.
@ -2995,6 +3017,7 @@
"reload_completed"
"* return lshrhi3_out (insn, operands, NULL);"
[(set_attr "length" "0,2,2,4,10")
(set_attr "adjust_len" "lshrhi")
(set_attr "cc" "none,clobber,clobber,clobber,clobber")])
(define_peephole2
@ -3015,6 +3038,7 @@
"reload_completed"
"* return lshrsi3_out (insn, operands, NULL);"
[(set_attr "length" "0,4,4,10")
(set_attr "adjust_len" "lshrsi")
(set_attr "cc" "none,clobber,clobber,clobber")])
;; abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x)
@ -3383,7 +3407,7 @@
}
[(set_attr "cc" "compare")
(set_attr "length" "1,2,2,3,4,2,4")
(set_attr "adjust_len" "tsthi,tsthi,no,no,no,compare,compare")])
(set_attr "adjust_len" "tsthi,tsthi,*,*,*,compare,compare")])
(define_insn "*cmpsi"
@ -3402,7 +3426,7 @@
}
[(set_attr "cc" "compare")
(set_attr "length" "4,4,4,5,8")
(set_attr "adjust_len" "tstsi,no,compare,compare,compare")])
(set_attr "adjust_len" "tstsi,*,compare,compare,compare")])
;; ----------------------------------------------------------------------