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(output_move_strict{hi,qi}): New functions.

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From-SVN: r14078
This commit is contained in:
Richard Kenner 1997-05-18 07:47:43 -04:00
parent a25cea96d7
commit 9b55bf04b6
1 changed files with 26 additions and 0 deletions
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26
gcc/config/m68k/m68k.c
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@ -1556,6 +1556,32 @@ output_move_qimode (operands)
return "move%.b %1,%0";
}
char *
output_move_stricthi (operands)
rtx *operands;
{
if (operands[1] == const0_rtx
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
&& ((TARGET_68020 || TARGET_5200)
|| !(GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))))
return "clr%.w %0";
return "move%.w %1,%0";
}
char *
output_move_strictqi (operands)
rtx *operands;
{
if (operands[1] == const0_rtx
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
&& ((TARGET_68020 || TARGET_5200)
|| !(GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))))
return "clr%.b %0";
return "move%.b %1,%0";
}
/* Return the best assembler insn template
for moving operands[1] into operands[0] as a fullword. */