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rs6000.c (rs6000_outout_load_multiple): New function.

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* config/rs6000/rs6000.c (rs6000_outout_load_multiple): New function.
        * config/rs6000/rs6000.md (movti_string): Remove output modifier
        when scratch register never needed.
        (ldmsi[3-8]): New patterns.

From-SVN: r59174
This commit is contained in:
David Edelsohn 2002-11-16 18:01:51 +00:00 committed by David Edelsohn
parent 476c5eb60e
commit 9caa3eb2db
4 changed files with 179 additions and 58 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2002-11-16 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.c (rs6000_outout_load_multiple): New function.
* config/rs6000/rs6000.md (movti_string): Remove output modifier
when scratch register never needed.
(ldmsi[3-8]): New patterns.
2002-11-16 Kazu Hirata <kazu@cs.umass.edu>
* hard-reg-set.h: Follow spelling conventions.

3
gcc/config/rs6000/rs6000-protos.h
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@ -84,6 +84,7 @@ extern int constant_pool_expr_p PARAMS ((rtx));
extern int toc_relative_expr_p PARAMS ((rtx));
extern int expand_block_move PARAMS ((rtx[]));
extern int load_multiple_operation PARAMS ((rtx, enum machine_mode));
extern const char * rs6000_output_load_multiple PARAMS ((rtx[]));
extern int store_multiple_operation PARAMS ((rtx, enum machine_mode));
extern int branch_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int branch_positive_comparison_operator
@ -186,7 +187,7 @@ extern void rs6000_emit_load_toc_table PARAMS ((int));
extern void rs6000_aix_emit_builtin_unwind_init PARAMS ((void));
extern void rs6000_emit_epilogue PARAMS ((int));
extern void debug_stack_info PARAMS ((rs6000_stack_t *));
extern const char *output_isel PARAMS ((rtx *));
extern const char * output_isel PARAMS ((rtx *));
extern int vrsave_operation PARAMS ((rtx, enum machine_mode));
extern int rs6000_register_move_cost PARAMS ((enum machine_mode,
enum reg_class, enum reg_class));

58
gcc/config/rs6000/rs6000.c
View File

@ -6390,6 +6390,64 @@ store_multiple_operation (op, mode)
return 1;
}
/* Return a string to perform a load_multiple operation.
operands[0] is the vector.
operands[1] is the source address.
operands[2] is the first destination register. */
const char *
rs6000_output_load_multiple (operands)
rtx operands[2];
{
/* We have to handle the case where the pseudo used to contain the address
is assigned to one of the output registers. */
int i, j;
int words = XVECLEN (operands[0], 0);
rtx xop[10];
if (XVECLEN (operands[0], 0) == 1)
return "{l|lwz} %2,0(%1)";
for (i = 0; i < words; i++)
if (refers_to_regno_p (REGNO (operands[2]) + i,
REGNO (operands[2]) + i + 1, operands[1], 0))
{
if (i == words-1)
{
xop[0] = GEN_INT (4 * (words-1));
xop[1] = operands[1];
xop[2] = operands[2];
output_asm_insn ("{lsi|lswi} %2,%1,%0\n\t{l|lwz} %1,%0(%1)", xop);
return "";
}
else if (i == 0)
{
xop[0] = GEN_INT (4 * (words-1));
xop[1] = operands[1];
xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + 1);
output_asm_insn ("{cal %1,4(%1)|addi %1,%1,4}\n\t{lsi|lswi} %2,%1,%0\n\t{l|lwz} %1,-4(%1)", xop);
return "";
}
else
{
for (j = 0; j < words; j++)
if (j != i)
{
xop[0] = GEN_INT (j * 4);
xop[1] = operands[1];
xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + j);
output_asm_insn ("{l|lwz} %2,%0(%1)", xop);
}
xop[0] = GEN_INT (i * 4);
xop[1] = operands[1];
output_asm_insn ("{l|lwz} %1,%0(%1)", xop);
return "";
}
}
return "{lsi|lswi} %2,%1,%N0";
}
/* Return 1 for a parallel vrsave operation. */
int

169
gcc/config/rs6000/rs6000.md
View File

@ -9250,7 +9250,7 @@
(define_insn "*movti_string"
[(set (match_operand:TI 0 "reg_or_mem_operand" "=Q,m,????r,????r,????r")
(match_operand:TI 1 "reg_or_mem_operand" "r,r,r,Q,m"))
(clobber (match_scratch:SI 2 "=X,X,X,X,X"))]
(clobber (match_scratch:SI 2 "X,X,X,X,X"))]
"TARGET_STRING && ! TARGET_POWER && ! TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], TImode) || gpc_reg_operand (operands[1], TImode))"
"*
@ -9371,65 +9371,120 @@
adjust_address (op1, SImode, i * 4));
}")
(define_insn ""
(define_insn "*ldmsi8"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 1 "gpc_reg_operand" "=r")
(mem:SI (match_operand:SI 2 "gpc_reg_operand" "b")))])]
"TARGET_STRING"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))
(set (match_operand:SI 8 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 24))))
(set (match_operand:SI 9 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 28))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 8"
"*
{
/* We have to handle the case where the pseudo used to contain the address
is assigned to one of the output registers. */
int i, j;
int words = XVECLEN (operands[0], 0);
rtx xop[10];
if (XVECLEN (operands[0], 0) == 1)
return \"{l|lwz} %1,0(%2)\";
for (i = 0; i < words; i++)
if (refers_to_regno_p (REGNO (operands[1]) + i,
REGNO (operands[1]) + i + 1, operands[2], 0))
{
if (i == words-1)
{
xop[0] = operands[1];
xop[1] = operands[2];
xop[2] = GEN_INT (4 * (words-1));
output_asm_insn (\"{lsi|lswi} %0,%1,%2\;{l|lwz} %1,%2(%1)\", xop);
return \"\";
}
else if (i == 0)
{
xop[0] = operands[1];
xop[1] = gen_rtx_REG (SImode, REGNO (operands[1]) + 1);
xop[2] = GEN_INT (4 * (words-1));
output_asm_insn (\"{cal %0,4(%0)|addi %0,%0,4}\;{lsi|lswi} %1,%0,%2\;{l|lwz} %0,-4(%0)\", xop);
return \"\";
}
else
{
for (j = 0; j < words; j++)
if (j != i)
{
xop[0] = gen_rtx_REG (SImode, REGNO (operands[1]) + j);
xop[1] = operands[2];
xop[2] = GEN_INT (j * 4);
output_asm_insn (\"{l|lwz} %0,%2(%1)\", xop);
}
xop[0] = operands[2];
xop[1] = GEN_INT (i * 4);
output_asm_insn (\"{l|lwz} %0,%1(%0)\", xop);
return \"\";
}
}
return \"{lsi|lswi} %1,%2,%N0\";
}"
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_insn "*ldmsi7"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))
(set (match_operand:SI 8 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 24))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 7"
"*
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_insn "*ldmsi6"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 6"
"*
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_insn "*ldmsi5"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 5"
"*
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_insn "*ldmsi4"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 4"
"*
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_insn "*ldmsi3"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 2 "gpc_reg_operand" "")
(mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")))
(set (match_operand:SI 3 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "gpc_reg_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))])]
"TARGET_STRING && XVECLEN (operands[0], 0) == 3"
"*
{ return rs6000_output_load_multiple (operands); }"
[(set_attr "type" "load")
(set_attr "length" "32")])
(define_expand "store_multiple"
[(match_par_dup 3 [(set (match_operand:SI 0 "" "")
(match_operand:SI 1 "" ""))
@ -9474,7 +9529,7 @@
gen_rtx_REG (SImode, regno + i));
}")
(define_insn ""
(define_insn "*store_multiple_power"
[(match_parallel 0 "store_multiple_operation"
[(set (match_operand:SI 1 "indirect_operand" "=Q")
(match_operand:SI 2 "gpc_reg_operand" "r"))
@ -9483,7 +9538,7 @@
"{stsi|stswi} %2,%P1,%O0"
[(set_attr "type" "store")])
(define_insn ""
(define_insn "*store_multiple_string"
[(match_parallel 0 "store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
(match_operand:SI 2 "gpc_reg_operand" "r"))