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riscv-gcc-1
Commit d096725d by Adrian Straetling Committed by Ulrich Weigand
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s390.c: (s390_const_double_ok_for_constraint_p): New function. 

2005-05-10  Adrian Straetling  <straetling@de.ibm.com>

	* config/s390/s390.c: (s390_const_double_ok_for_constraint_p): New
	function.
	(legitimate_reload_constant_p): Add check for const double zero.
	* config/s390/s390.md: Add comment for constraint letter 'G'.
	("*movdf_64", "*movdf_31", "movsf"): Add constraint and proper
	attributes for new case.
	* config/s390/s390.h: (CONST_DOUBLE_OK_FOR_CONSTRAINT_P): Define it as
	s390_const_double_ok_for_constraint_p.
	* config/s390/s390-protos.h (s390_const_double_ok_for_constraint_p):
	Add prototype.

From-SVN: r99541
parent 31117a5c
Showing with 58 additions and 13 deletions
gcc/ChangeLog
2005-05-10 Adrian Straetling <straetling@de.ibm.com>
* config/s390/s390.c: (s390_const_double_ok_for_constraint_p): New
function.
(legitimate_reload_constant_p): Add check for const double zero.
* config/s390/s390.md: Add comment for constraint letter 'G'.
("*movdf_64", "*movdf_31", "movsf"): Add constraint and proper
attributes for new case.
* config/s390/s390.h: (CONST_DOUBLE_OK_FOR_CONSTRAINT_P): Define it as
s390_const_double_ok_for_constraint_p.
* config/s390/s390-protos.h (s390_const_double_ok_for_constraint_p):
Add prototype.
2005-05-10 Kazu Hirata <kazu@cs.umass.edu>
PR tree-optimization/21170
......
gcc/config/s390/s390-protos.h
......@@ -33,6 +33,7 @@ extern void s390_conditional_register_usage (void);
#ifdef RTX_CODE
extern int s390_extra_constraint_str (rtx, int, const char *);
extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *);
extern int s390_const_double_ok_for_constraint_p (rtx, int, const char *);
extern int s390_single_part (rtx, enum machine_mode, enum machine_mode, int);
extern unsigned HOST_WIDE_INT s390_extract_part (rtx, enum machine_mode, int);
extern bool s390_split_ok_p (rtx, rtx, enum machine_mode, int);
......
gcc/config/s390/s390.c
......@@ -1680,6 +1680,27 @@ s390_extra_constraint_str (rtx op, int c, const char * str)
/* Return true if VALUE matches the constraint STR. */
int
s390_const_double_ok_for_constraint_p (rtx value,
int c,
const char * str)
{
gcc_assert (c == str[0]);
switch (str[0])
{
case 'G':
/* The floating point zero constant. */
return (GET_MODE_CLASS (GET_MODE (value)) == MODE_FLOAT
&& value == CONST0_RTX (GET_MODE (value)));
default:
return 0;
}
}
/* Return true if VALUE matches the constraint STR. */
int
s390_const_ok_for_constraint_p (HOST_WIDE_INT value,
int c,
const char * str)
......@@ -2190,6 +2211,11 @@ legitimate_reload_constant_p (rtx op)
&& larl_operand (op, VOIDmode))
return true;
/* Accept lzXX operands. */
if (GET_CODE (op) == CONST_DOUBLE
&& CONST_DOUBLE_OK_FOR_CONSTRAINT_P (op, 'G', "G"))
return true;
/* Everything else cannot be handled without reload. */
return false;
}
......
gcc/config/s390/s390.h
......@@ -485,7 +485,8 @@ extern const enum reg_class regclass_map[FIRST_PSEUDO_REGISTER];
#define CONST_OK_FOR_CONSTRAINT_P(VALUE, C, STR) \
s390_const_ok_for_constraint_p ((VALUE), (C), (STR))
#define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(VALUE, C, STR) 1
#define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(VALUE, C, STR) \
s390_const_double_ok_for_constraint_p ((VALUE), (C), (STR))
#define EXTRA_CONSTRAINT_STR(OP, C, STR) \
s390_extra_constraint_str ((OP), (C), (STR))
......
gcc/config/s390/s390.md
......@@ -29,6 +29,7 @@
;; d -- Any register from 0 to 15.
;; f -- Floating point registers.
;; t -- Access registers 36 and 37.
;; G -- Const double zero operand
;; I -- An 8-bit constant (0..255).
;; J -- A 12-bit constant (0..4095).
;; K -- A 16-bit constant (-32768..32767).
......@@ -1364,10 +1365,11 @@
"")
(define_insn "*movdf_64"
[(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,R,T,d,d,m,?Q")
(match_operand:DF 1 "general_operand" "f,R,T,f,f,d,m,d,?Q"))]
[(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,f,R,T,d,d,m,?Q")
(match_operand:DF 1 "general_operand" "G,f,R,T,f,f,d,m,d,?Q"))]
"TARGET_64BIT"
"@
lzdr\t%0
ldr\t%0,%1
ld\t%0,%1
ldy\t%0,%1
......@@ -1377,14 +1379,15 @@
lg\t%0,%1
stg\t%1,%0
#"
[(set_attr "op_type" "RR,RX,RXY,RX,RXY,RRE,RXY,RXY,SS")
(set_attr "type" "floaddf,floaddf,floaddf,fstoredf,fstoredf,lr,load,store,*")])
[(set_attr "op_type" "RRE,RR,RX,RXY,RX,RXY,RRE,RXY,RXY,SS")
(set_attr "type" "fsimpdf,floaddf,floaddf,floaddf,fstoredf,fstoredf,lr,load,store,*")])
(define_insn "*movdf_31"
[(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,R,T,d,Q,d,o,Q")
(match_operand:DF 1 "general_operand" "f,R,T,f,f,Q,d,dKm,d,Q"))]
[(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,f,R,T,d,Q,d,o,Q")
(match_operand:DF 1 "general_operand" "G,f,R,T,f,f,Q,d,dKm,d,Q"))]
"!TARGET_64BIT"
"@
lzdr\t%0
ldr\t%0,%1
ld\t%0,%1
ldy\t%0,%1
......@@ -1395,8 +1398,8 @@
#
#
#"
[(set_attr "op_type" "RR,RX,RXY,RX,RXY,RS,RS,*,*,SS")
(set_attr "type" "floaddf,floaddf,floaddf,fstoredf,fstoredf,lm,stm,*,*,*")])
[(set_attr "op_type" "RRE,RR,RX,RXY,RX,RXY,RS,RS,*,*,SS")
(set_attr "type" "fsimpdf,floaddf,floaddf,floaddf,fstoredf,fstoredf,lm,stm,*,*,*")])
(define_split
[(set (match_operand:DF 0 "nonimmediate_operand" "")
......@@ -1457,10 +1460,11 @@
;
(define_insn "movsf"
[(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,R,T,d,d,d,R,T,?Q")
(match_operand:SF 1 "general_operand" "f,R,T,f,f,d,R,T,d,d,?Q"))]
[(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,f,R,T,d,d,d,R,T,?Q")
(match_operand:SF 1 "general_operand" "G,f,R,T,f,f,d,R,T,d,d,?Q"))]
""
"@
lzer\t%0
ler\t%0,%1
le\t%0,%1
ley\t%0,%1
......@@ -1472,8 +1476,8 @@
st\t%1,%0
sty\t%1,%0
#"
[(set_attr "op_type" "RR,RX,RXY,RX,RXY,RR,RX,RXY,RX,RXY,SS")
(set_attr "type" "floadsf,floadsf,floadsf,fstoresf,fstoresf,
[(set_attr "op_type" "RRE,RR,RX,RXY,RX,RXY,RR,RX,RXY,RX,RXY,SS")
(set_attr "type" "fsimpsf,floadsf,floadsf,floadsf,fstoresf,fstoresf,
lr,load,load,store,store,*")])
;
......
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