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| author | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 05:44:56 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-03-29 05:44:56 +0000 |
| commit | 0be99d4ba6c89dca6bbee981c7b89d506f344a40 (patch) | |
| tree | 4b130dba7e507d24f9a4b86e2c8c6ee14e83b1a4 | |
| parent | c3a7b1206d72edcfeb965fdbd6cfd0c9d0100eba (diff) | |
| download | gdb-0be99d4ba6c89dca6bbee981c7b89d506f344a40.zip gdb-0be99d4ba6c89dca6bbee981c7b89d506f344a40.tar.gz gdb-0be99d4ba6c89dca6bbee981c7b89d506f344a40.tar.bz2 | |
gas: blackfin: gas: blackfin: reject invalid BYTEOP16P insns
The destination registers must be different with BYTEOP16P insns,
otherwise the hardware throws up an exception. So reject them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/bfin-parse.y | 2 | ||||
| -rw-r--r-- | gas/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/testsuite/gas/bfin/expected_errors.l | 2 | ||||
| -rw-r--r-- | gas/testsuite/gas/bfin/expected_errors.s | 3 |
5 files changed, 17 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index fe0c466..428d266 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2011-03-29 Mike Frysinger <vapier@gentoo.org> + + * config/bfin-parse.y (BYTEOP16P): Return yyerror when dest + reg $2 is the same as dest reg $4. + 2011-03-28 Mike Frysinger <vapier@gentoo.org> * config/bfin-parse.y (16bit acc add): Return yyerror when dest diff --git a/gas/config/bfin-parse.y b/gas/config/bfin-parse.y index fa81a61..12e7525 100644 --- a/gas/config/bfin-parse.y +++ b/gas/config/bfin-parse.y @@ -831,6 +831,8 @@ 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 (&$9, $11)) return yyerror ("Bad dreg pair"); else if (!valid_dreg_pair (&$13, $15)) diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index b4bdca1..2472627 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-03-29 Mike Frysinger <vapier@gentoo.org> + + * gas/bfin/expected_errors.s: Add invalid BYTEOP16P insn tests. + * gas/bfin/expected_errors.l: Add new error messages. + 2011-03-28 Mike Frysinger <vapier@gentoo.org> * gas/bfin/expected_errors.s: Add invalid 16bit acc add insn tests. diff --git a/gas/testsuite/gas/bfin/expected_errors.l b/gas/testsuite/gas/bfin/expected_errors.l index 2f746db..216c8e1 100644 --- a/gas/testsuite/gas/bfin/expected_errors.l +++ b/gas/testsuite/gas/bfin/expected_errors.l @@ -101,3 +101,5 @@ .*:127: Error: Differing source registers. .*:129: Error: Register mismatch. .*:131: Error: Illegal dest register combination. Input text was A0.H. +.*:133: Error: Illegal dest register combination. +.*:134: Error: Illegal dest register combination. diff --git a/gas/testsuite/gas/bfin/expected_errors.s b/gas/testsuite/gas/bfin/expected_errors.s index f6e3f6f..677103c 100644 --- a/gas/testsuite/gas/bfin/expected_errors.s +++ b/gas/testsuite/gas/bfin/expected_errors.s @@ -129,3 +129,6 @@ R0 = R3 + R4, R1 = R5 - R6; R7 = A1.L + A1.H, R7 = A0.L + A0.H; + + (R0, R0) = BYTEOP16P (R1:0, R3:2); + (R7, R7) = BYTEOP16P (R1:0, R3:2); |