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Commit 5ee4950e by Andrew Haley Committed by Andrew Haley
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stormy16.md (pushqi): New. 

2002-01-30  Andrew Haley  <aph@cambridge.redhat.com>

        * config/stormy16/stormy16.md (pushqi): New.
        (popqi): New.
        (pushhi): New.
        (pophi): New.
        (movhi): Remove stack operands.
        (movqi): Likewise.
        * config/stormy16/stormy16.h (PREDICATE_CODES): Add
        nonimmediate_nonstack_operand.
        * config/stormy16/stormy16.c (nonimmediate_nonstack_operand):
        New.
        * config/stormy16/stormy16-protos.h (nonimmediate_nonstack_operand)
        New.

From-SVN: r49394
parent b88c0704
Showing with 80 additions and 18 deletions
gcc/ChangeLog
2002-01-30 Andrew Haley <aph@cambridge.redhat.com>
* config/stormy16/stormy16.md (pushqi): New.
(popqi): New.
(pushhi): New.
(pophi): New.
(movhi): Remove stack operands.
(movqi): Likewise.
* config/stormy16/stormy16.h (PREDICATE_CODES): Add
nonimmediate_nonstack_operand.
* config/stormy16/stormy16.c (nonimmediate_nonstack_operand):
New.
* config/stormy16/stormy16-protos.h (nonimmediate_nonstack_operand)
New.
2002-01-31 Jason Merrill <jason@redhat.com>
* Makefile.in (c-parse.c): Handle .output file.
......
gcc/config/stormy16/stormy16-protos.h
......@@ -73,6 +73,7 @@ extern int inequality_operator PARAMS ((rtx, enum machine_mode));
extern void xstormy16_split_cbranch PARAMS ((enum machine_mode,
rtx, rtx, rtx, rtx));
extern int short_memory_operand PARAMS ((rtx, enum machine_mode));
extern int nonimmediate_nonstack_operand PARAMS ((rtx, enum machine_mode));
extern enum reg_class xstormy16_secondary_reload_class
PARAMS ((enum reg_class, enum machine_mode, rtx));
extern int xstormy16_carry_plus_operand PARAMS ((rtx, enum machine_mode));
......
gcc/config/stormy16/stormy16.c
......@@ -622,6 +622,17 @@ short_memory_operand (x, mode)
return (GET_CODE (XEXP (x, 0)) != PLUS);
}
int
nonimmediate_nonstack_operand (op, mode)
rtx op;
enum machine_mode mode;
{
/* 'Q' is for pushes, 'R' for pops. */
return (nonimmediate_operand (op, mode)
&& ! xstormy16_extra_constraint_p (op, 'Q')
&& ! xstormy16_extra_constraint_p (op, 'R'));
}
/* Splitter for the 'move' patterns, for modes not directly implemeted
by hardware. Emit insns to copy a value of mode MODE from SRC to
DEST.
......
gcc/config/stormy16/stormy16.h
......@@ -3894,8 +3894,8 @@ do { \
{"shift_operator", {ASHIFT, ASHIFTRT, LSHIFTRT }}, \
{"equality_operator", {EQ, NE }}, \
{"inequality_operator", {GE, GT, LE, LT, GEU, GTU, LEU, LTU }}, \
{"xstormy16_ineqsi_operator", {LT, GE, LTU, GEU }},
{"xstormy16_ineqsi_operator", {LT, GE, LTU, GEU }}, \
{"nonimmediate_nonstack_operand", {REG, MEM}},
/* An alias for a machine mode name. This is the machine mode that elements of
a jump-table should have. */
#define CASE_VECTOR_MODE SImode
......
gcc/config/stormy16/stormy16.md
......@@ -72,21 +72,46 @@
;; :: Moves
;; ::
;; ::::::::::::::::::::
;; push/pop qi and hi are here as separate insns rather than part of
;; the movqi/hi patterns because we need to ensure that reload isn't
;; passed anything it can't cope with. Without these patterns, we
;; might end up with
;; (set (mem (post_inc (sp))) mem (post_inc (reg)))
;; If, in this example, reg needs reloading, reload will read reg from
;; the stack , adjust sp, and store reg back at what is now the wrong
;; offset. By using separate patterns for push and pop we ensure that
;; insns like this one are never generated.
(define_insn "pushqi"
[(set (mem:QI (post_inc (reg:HI 15)))
(match_operand:QI 0 "register_operand" "r"))]
""
"push %0"
[(set_attr "psw_operand" "nop")
(set_attr "length" "2")])
(define_insn "popqi"
[(set (match_operand:QI 0 "register_operand" "=r")
(mem:QI (pre_dec (reg:HI 15))))]
""
"pop %0"
[(set_attr "psw_operand" "nop")
(set_attr "length" "2")])
(define_expand "movqi"
[(set (match_operand:QI 0 "nonimmediate_operand" "")
[(set (match_operand:QI 0 "nonimmediate_nonstack_operand" "")
(match_operand:QI 1 "general_operand" ""))]
""
"{ xstormy16_expand_move (QImode, operands[0], operands[1]); DONE; }")
(define_insn "*movqi_internal"
[(set (match_operand:QI 0 "nonimmediate_operand" "=r,Q,r,m,e,e,T,r,S")
(match_operand:QI 1 "general_operand" "r,r,R,e,m,i,i,i,i"))]
[(set (match_operand:QI 0 "nonimmediate_nonstack_operand" "=r,m,e,e,T,r,S")
(match_operand:QI 1 "general_operand" "r,e,m,i,i,i,i"))]
""
"@
mov %0,%1
push %1
pop %0
mov.b %0,%1
mov.b %0,%1
mov %0,%1
......@@ -95,8 +120,6 @@
mov.b %0,%1"
[(set_attr_alternative "length"
[(const_int 2)
(const_int 2)
(const_int 2)
(if_then_else (match_operand:QI 0 "short_memory_operand" "")
(const_int 2)
(const_int 4))
......@@ -107,22 +130,36 @@
(const_int 2)
(const_int 4)
(const_int 4)])
(set_attr "psw_operand" "0,nop,nop,0,0,0,nop,0,nop")])
(set_attr "psw_operand" "0,0,0,0,nop,0,nop")])
(define_insn "pushhi"
[(set (mem:HI (post_inc (reg:HI 15)))
(match_operand:HI 0 "register_operand" "r"))]
""
"push %0"
[(set_attr "psw_operand" "nop")
(set_attr "length" "2")])
(define_insn "pophi"
[(set (match_operand:HI 0 "register_operand" "=r")
(mem:HI (pre_dec (reg:HI 15))))]
""
"pop %0"
[(set_attr "psw_operand" "nop")
(set_attr "length" "2")])
(define_expand "movhi"
[(set (match_operand:HI 0 "nonimmediate_operand" "")
[(set (match_operand:HI 0 "nonimmediate_nonstack_operand" "")
(match_operand:HI 1 "general_operand" ""))]
""
"{ xstormy16_expand_move (HImode, operands[0], operands[1]); DONE; }")
(define_insn "*movhi_internal"
[(set (match_operand:HI 0 "nonimmediate_operand" "=r,Q,r,m,e,e,T,r,S")
(match_operand:HI 1 "general_operand" "r,r,R,e,m,L,L,i,i"))]
[(set (match_operand:HI 0 "nonimmediate_nonstack_operand" "=r,m,e,e,T,r,S")
(match_operand:HI 1 "general_operand" "r,e,m,L,L,i,i"))]
""
"@
mov %0,%1
push %1
pop %0
mov.w %0,%1
mov.w %0,%1
mov.w %0,%1
......@@ -131,8 +168,6 @@
mov.w %0,%1"
[(set_attr_alternative "length"
[(const_int 2)
(const_int 2)
(const_int 2)
(if_then_else (match_operand:QI 0 "short_memory_operand" "")
(const_int 2)
(const_int 4))
......@@ -143,7 +178,7 @@
(const_int 2)
(const_int 4)
(const_int 4)])
(set_attr "psw_operand" "0,nop,nop,0,0,0,nop,0,nop")])
(set_attr "psw_operand" "0,0,0,0,nop,0,nop")])
(define_expand "movsi"
[(set (match_operand:SI 0 "nonimmediate_operand" "")
......
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