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| author | Jim Wilson <wilson@gcc.gnu.org> | 1997-05-19 18:01:22 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1997-05-19 18:01:22 -0700 |
| commit | 102701ff6c2024dd297fed5c28f2397945a90148 (patch) | |
| tree | 716091da984140c2afc189732566ccc33690ebeb | |
| parent | 6d808a73ece60a40ca45a2ba22dc5ce7b85623ec (diff) | |
| download | gcc-102701ff6c2024dd297fed5c28f2397945a90148.zip gcc-102701ff6c2024dd297fed5c28f2397945a90148.tar.gz gcc-102701ff6c2024dd297fed5c28f2397945a90148.tar.bz2 | |
(output_move_qimode): Add coldfire support.
From-SVN: r14105
| -rw-r--r-- | gcc/config/m68k/m68k.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 8f26871..37298e5 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -1497,10 +1497,13 @@ output_move_qimode (operands) /* This is probably useless, since it loses for pushing a struct of several bytes a byte at a time. */ + /* 68k family always modifies the stack pointer by at least 2, even for + byte pushes. The 5200 (coldfire) does not do this. */ if (GET_CODE (operands[0]) == MEM && GET_CODE (XEXP (operands[0], 0)) == PRE_DEC && XEXP (XEXP (operands[0], 0), 0) == stack_pointer_rtx - && ! ADDRESS_REG_P (operands[1])) + && ! ADDRESS_REG_P (operands[1]) + && ! TARGET_5200) { xoperands[1] = operands[1]; xoperands[2] @@ -1551,7 +1554,10 @@ output_move_qimode (operands) } if (GET_CODE (operands[1]) != CONST_INT && CONSTANT_P (operands[1])) return "move%.l %1,%0"; - if (ADDRESS_REG_P (operands[0]) || ADDRESS_REG_P (operands[1])) + /* 68k family doesn't support byte moves to from address registers. The + 5200 (coldfire) does not have this restriction. */ + if ((ADDRESS_REG_P (operands[0]) || ADDRESS_REG_P (operands[1])) + && ! TARGET_5200) return "move%.w %1,%0"; return "move%.b %1,%0"; } |