diff options
Diffstat (limited to 'gcc/config/m68k/m68k.c')
| -rw-r--r-- | gcc/config/m68k/m68k.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 2f4ba22f0b0..8f26871404a 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -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. */ |