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(const_uint32_operand): New function.

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(const_sint32_operand): New function.

From-SVN: r9306
This commit is contained in:
Torbjorn Granlund 1995-04-03 22:53:36 +00:00
parent 88f63c77d9
commit 67cd4f83cf
1 changed files with 33 additions and 0 deletions
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33
gcc/config/m68k/m68k.c
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@ -2426,3 +2426,36 @@ strict_low_part_peephole_ok (mode, first_insn, target)
return 0;
}
/* Accept integer operands in the range 0..0xffffffff. We have to check the
range carefully since this predicate is used in DImode contexts. Also, we
need some extra crud to make it work when hosted on 64-bit machines. */
int
const_uint32_operand (op, mode)
rtx op;
enum machine_mode mode;
{
#if HOST_BITS_PER_WIDE_INT > 32
/* All allowed constants will fit a CONST_INT. */
return (GET_CODE (op) == CONST_INT
&& (INTVAL (op) >= 0 && INTVAL (op) <= 0xffffffffL));
#else
return (GET_CODE (op) == CONST_INT
|| (GET_CODE (op) == CONST_DOUBLE && CONST_DOUBLE_HIGH (op) == 0));
#endif
}
/* Accept integer operands in the range -0x80000000..0x7fffffff. We have
to check the range carefully since this predicate is used in DImode
contexts. */
int
const_sint32_operand (op, mode)
rtx op;
enum machine_mode mode;
{
/* All allowed constants will fit a CONST_INT. */
return (GET_CODE (op) == CONST_INT
&& (INTVAL (op) >= (-0x7fffffff - 1) && INTVAL (op) <= 0x7fffffff));
}