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| author | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 05:54:41 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 05:54:41 +0000 |
| commit | fc99ebdc2b470b31622d9efc28fca6f03945532c (patch) | |
| tree | bb3bba14326204194606831a8d7f24e5233bd8e5 /gas/config/bfin-parse.y | |
| parent | 3823a07437e70105c9a11fbddddb8273e1b8a858 (diff) | |
| download | gdb-fc99ebdc2b470b31622d9efc28fca6f03945532c.zip gdb-fc99ebdc2b470b31622d9efc28fca6f03945532c.tar.gz gdb-fc99ebdc2b470b31622d9efc28fca6f03945532c.tar.bz2 | |
gas: blackfin: gas: blackfin: reject invalid BYTEUNPACK insns
The destination registers must be different with BYTEUNPACK insns,
otherwise the hardware throws up an exception. So reject them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'gas/config/bfin-parse.y')
| -rw-r--r-- | gas/config/bfin-parse.y | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gas/config/bfin-parse.y b/gas/config/bfin-parse.y index 7961e2e..797664a 100644 --- a/gas/config/bfin-parse.y +++ b/gas/config/bfin-parse.y @@ -866,6 +866,8 @@ asm_1: { if (!IS_DREG ($2) || !IS_DREG ($4)) return yyerror ("Dregs expected"); + else if (REG_SAME ($2, $4)) + return yyerror ("Illegal dest register combination"); else if (!valid_dreg_pair (&$8, $10)) return yyerror ("Bad dreg pair"); else |