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| author | H.J. Lu <hjl.tools@gmail.com> | 2007-08-28 17:36:34 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2007-08-28 17:36:34 +0000 |
| commit | d9a5e5e5c91086a8dd66174a7ebff52c00efe79e (patch) | |
| tree | bd7ab2e401e44e7ee2b191527d4658d507c21533 /gas/config | |
| parent | d5ce5596bf611b65e4fc93b4e90df67359f4cba5 (diff) | |
| download | gdb-d9a5e5e5c91086a8dd66174a7ebff52c00efe79e.zip gdb-d9a5e5e5c91086a8dd66174a7ebff52c00efe79e.tar.gz gdb-d9a5e5e5c91086a8dd66174a7ebff52c00efe79e.tar.bz2 | |
gas/
2007-08-28 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (process_suffix): Handle cmpxchg8b in
Intel mode.
gas/testsuite/
2007-08-28 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/mem.s: New. Add tests for instructions with one
memory operand.
* gas/i386/x86-64-mem.s: Likewise.
* gas/i386/mem-intel.d: Updated.
* gas/i386/mem.d: Likewise.
* gas/i386/x86-64-mem-intel.d: Likewise.
* gas/i386/x86-64-mem.d: Likewise.
opcodes/
2007-08-28 H.J. Lu <hongjiu.lu@intel.com>
* i386-dis.c (Md): New.
(grps): Use 0 on invlpg. Use M on fxsave and fxrstor. Use
Md on ldmxcsr and stmxcsr. Use b_mode on clflush.
(OP_0fae): Clear bytemode for sfence.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-i386.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 16376dc..0f6396f 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3032,11 +3032,17 @@ process_suffix (void) && (i.tm.opcode_modifier & NoRex64) == 0) { /* Special case for xchg %rax,%rax. It is NOP and doesn't - need rex64. */ - if (i.operands != 2 - || i.types [0] != (Acc | Reg64) - || i.types [1] != (Acc | Reg64) - || i.tm.base_opcode != 0x90) + need rex64. cmpxchg8b is also a special case. */ + if (! (i.operands == 2 + && i.tm.base_opcode == 0x90 + && i.tm.extension_opcode == None + && i.types [0] == (Acc | Reg64) + && i.types [1] == (Acc | Reg64)) + && ! (i.operands == 1 + && i.tm.base_opcode == 0xfc7 + && i.tm.extension_opcode == 1 + && (i.types [0] & Reg) == 0 + && (i.types [0] & AnyMem) != 0)) i.rex |= REX_W; } |