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mn10300.c (secondary_reload_class): Handle more cases where we need secondary reloads. 

* mn10300.c (secondary_reload_class): Handle more cases where we
        need secondary reloads.
        (impossible_plus_operand): Accept anything that involves addition
        of the stack pointer.
        * mn10300.md (reload_insi): Always load the stack pointer into
        the destination (which is always an address register).
        * mn10300.h (STORE_FLAG_VALUE): Remove definition.
        * xm-mn10300.h: Declare malloc, realloc, calloc and free.

From-SVN: r13973
This commit is contained in:
Jeff Law 1997-04-23 17:54:59 -06:00
parent cd1bbde17b
commit 4c7428133b
4 changed files with 26 additions and 20 deletions
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17
gcc/config/mn10300/mn10300.c
View File

@ -675,6 +675,12 @@ secondary_reload_class (class, mode, in)
|| XEXP (in, 1) == stack_pointer_rtx))))
return ADDRESS_REGS;
if (GET_CODE (in) == PLUS
&& (XEXP (in, 0) == stack_pointer_rtx
|| XEXP (in, 1) == stack_pointer_rtx))
return DATA_REGS;
/* Otherwise assume no secondary reloads are needed. */
return NO_REGS;
}
@ -950,16 +956,9 @@ impossible_plus_operand (op, mode)
if (GET_CODE (op) != PLUS)
return 0;
if ((XEXP (op, 0) == stack_pointer_rtx)
&& ((REG_P (XEXP (op, 1)) && reg_equiv_mem [REGNO (XEXP (op, 1))])
|| (GET_CODE (XEXP (op, 1)) == SUBREG
&& GET_CODE (SUBREG_REG (XEXP (op, 1))) == MEM)))
if (XEXP (op, 0) == stack_pointer_rtx
|| XEXP (op, 1) == stack_pointer_rtx)
return 1;
if ((XEXP (op, 1) == stack_pointer_rtx)
&& ((REG_P (XEXP (op, 0)) && reg_equiv_mem [REGNO (XEXP (op, 0))])
|| (GET_CODE (XEXP (op, 0)) == SUBREG
&& GET_CODE (SUBREG_REG (XEXP (op, 0))) == MEM)))
return 1;
return 0;
}

2
gcc/config/mn10300/mn10300.h
View File

@ -971,8 +971,6 @@ do { char dstr[30]; \
is done just by pretending it is already truncated. */
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
#define STORE_FLAG_VALUE 1
/* Specify the machine mode that pointers have.
After generation of rtl, the compiler makes no further distinction
between pointers and any other objects of this machine mode. */

20
gcc/config/mn10300/mn10300.md
View File

@ -162,12 +162,20 @@
(define_expand "reload_insi"
[(set (match_operand:SI 0 "register_operand" "=a")
(match_operand:SI 1 "impossible_plus_operand" ""))
(clobber (match_operand:SI 2 "register_operand" "=&a"))]
(clobber (match_operand:SI 2 "register_operand" "=&r"))]
""
"
{
emit_move_insn (operands[0], XEXP (operands[1], 0));
emit_move_insn (operands[2], XEXP (operands[1], 1));
if (XEXP (operands[1], 0) == stack_pointer_rtx)
{
emit_move_insn (operands[0], XEXP (operands[1], 0));
emit_move_insn (operands[2], XEXP (operands[1], 1));
}
else
{
emit_move_insn (operands[0], XEXP (operands[1], 1));
emit_move_insn (operands[2], XEXP (operands[1], 0));
}
emit_insn (gen_addsi3 (operands[0], operands[0], operands[2]));
DONE;
}")
@ -1024,12 +1032,6 @@
btst %1,%0"
[(set_attr "cc" "set_zn_c0")])
;; -----------------------------------------------------------------
;; -----------------------------------------------------------------
;; Scc INSTRUCTIONS
;; -----------------------------------------------------------------
;; It's probably worth the time to define setcc type insns too
;; ----------------------------------------------------------------------
;; JUMP INSTRUCTIONS

7
gcc/config/mn10300/xm-mn10300.h
View File

@ -38,3 +38,10 @@ Boston, MA 02111-1307, USA. */
tm.h is a symbolic link to the actual target specific file. */
#include "tm.h"
#ifndef __STDC__
extern char *malloc (), *realloc (), *calloc ();
#else
extern void *malloc (), *realloc (), *calloc ();
#endif
extern void free ();