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Add SWP (Swap) and SWPB (Swap Byte) for disassembly only. 

llvm-svn: 96010
This commit is contained in:
Johnny Chen 2010-02-12 20:48:24 +00:00
parent 545d36019b
commit bdf1b9520c
1 changed files with 21 additions and 0 deletions
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21
llvm/lib/Target/ARM/ARMInstrInfo.td
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@ -1863,6 +1863,27 @@ def STREXD : AIstrex<0b01, (outs GPR:$success),
[]>;
}
// SWP/SWPB are deprecated in V6/V7 and for disassembly only.
let mayLoad = 1 in {
def SWP : AI<(outs GPR:$dst), (ins GPR:$src, GPR:$ptr), LdStExFrm, NoItinerary,
"swp", "\t$dst, $src, [$ptr]",
[/* For disassembly only; pattern left blank */]> {
let Inst{27-23} = 0b00010;
let Inst{22} = 0; // B = 0
let Inst{21-20} = 0b00;
let Inst{7-4} = 0b1001;
}
def SWPB : AI<(outs GPR:$dst), (ins GPR:$src, GPR:$ptr), LdStExFrm, NoItinerary,
"swpb", "\t$dst, $src, [$ptr]",
[/* For disassembly only; pattern left blank */]> {
let Inst{27-23} = 0b00010;
let Inst{22} = 1; // B = 1
let Inst{21-20} = 0b00;
let Inst{7-4} = 0b1001;
}
}
//===----------------------------------------------------------------------===//
// TLS Instructions
//