diff options
Diffstat (limited to 'lib/Target/X86/X86InstrExtension.td')
| -rw-r--r-- | lib/Target/X86/X86InstrExtension.td | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/lib/Target/X86/X86InstrExtension.td b/lib/Target/X86/X86InstrExtension.td index 06e605fe5db2..7a4eb138ec34 100644 --- a/lib/Target/X86/X86InstrExtension.td +++ b/lib/Target/X86/X86InstrExtension.td @@ -17,19 +17,18 @@ let hasSideEffects = 0 in { let Defs = [EAX], Uses = [AX] in // EAX = signext(AX) def CWDE : I<0x98, RawFrm, (outs), (ins), "{cwtl|cwde}", []>, OpSize32, Sched<[WriteALU]>; + let Defs = [RAX], Uses = [EAX] in // RAX = signext(EAX) + def CDQE : RI<0x98, RawFrm, (outs), (ins), + "{cltq|cdqe}", []>, Sched<[WriteALU]>, Requires<[In64BitMode]>; + // FIXME: CWD/CDQ/CQO shouldn't Def the A register, but the fast register + // allocator crashes if you remove it. let Defs = [AX,DX], Uses = [AX] in // DX:AX = signext(AX) def CWD : I<0x99, RawFrm, (outs), (ins), "{cwtd|cwd}", []>, OpSize16, Sched<[WriteALU]>; let Defs = [EAX,EDX], Uses = [EAX] in // EDX:EAX = signext(EAX) def CDQ : I<0x99, RawFrm, (outs), (ins), "{cltd|cdq}", []>, OpSize32, Sched<[WriteALU]>; - - - let Defs = [RAX], Uses = [EAX] in // RAX = signext(EAX) - def CDQE : RI<0x98, RawFrm, (outs), (ins), - "{cltq|cdqe}", []>, Sched<[WriteALU]>, Requires<[In64BitMode]>; - let Defs = [RAX,RDX], Uses = [RAX] in // RDX:RAX = signext(RAX) def CQO : RI<0x99, RawFrm, (outs), (ins), "{cqto|cqo}", []>, Sched<[WriteALU]>, Requires<[In64BitMode]>; |