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| author | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 01:25:13 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 01:25:13 +0000 |
| commit | f4a2f576d439afac300134257b3d9fcfc7e15fd3 (patch) | |
| tree | eb3ef526a7aa727e049b2a80fd13d225f956b1db /gas/config | |
| parent | 332bf1ed7493992da9371a6726436752ee782529 (diff) | |
| download | gdb-f4a2f576d439afac300134257b3d9fcfc7e15fd3.zip gdb-f4a2f576d439afac300134257b3d9fcfc7e15fd3.tar.gz gdb-f4a2f576d439afac300134257b3d9fcfc7e15fd3.tar.bz2 | |
gas: blackfin: reject invalid 16bit acc add insns
The 16bit acc add insn cannot assign the two results to the same dreg,
so make sure gas rejects attempts to use this insn variant.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/bfin-parse.y | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gas/config/bfin-parse.y b/gas/config/bfin-parse.y index 803afd1..fa81a61 100644 --- a/gas/config/bfin-parse.y +++ b/gas/config/bfin-parse.y @@ -886,6 +886,9 @@ asm_1: | REG ASSIGN A_ONE_DOT_L PLUS A_ONE_DOT_H COMMA REG ASSIGN A_ZERO_DOT_L PLUS A_ZERO_DOT_H { + if (REG_SAME ($1, $7)) + return yyerror ("Illegal dest register combination"); + if (IS_DREG ($1) && IS_DREG ($7)) { notethat ("dsp32alu: dregs = A1.l + A1.h, dregs = A0.l + A0.h \n"); |