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add Thumb2 atomic and memory barrier instruction definitions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91310 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2009-12-14 18:56:47 +00:00
parent 015d3b5704
commit c219e4dd59
1 changed files with 60 additions and 0 deletions
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60
lib/Target/ARM/ARMInstrThumb2.td
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@ -1064,6 +1064,66 @@ def t2MOVCCror : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$rhs),
IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
RegConstraint<"$false = $dst">;
//===----------------------------------------------------------------------===//
// Atomic operations intrinsics
//
// memory barriers protect the atomic sequences
let hasSideEffects = 1 in {
def t2Int_MemBarrierV7 : AInoP<(outs), (ins),
Pseudo, NoItinerary,
"dmb", "",
[(ARMMemBarrier)]> {
// FIXME: add support for options other than a full system DMB
}
def t2Int_SyncBarrierV7 : AInoP<(outs), (ins),
Pseudo, NoItinerary,
"dsb", "",
[(ARMSyncBarrier)]> {
// FIXME: add support for options other than a full system DSB
}
}
let mayLoad = 1 in {
def t2LDREXB : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
Size4Bytes, NoItinerary,
"ldrexb", "\t$dest, [$ptr]", "",
[]>;
def t2LDREXH : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
Size4Bytes, NoItinerary,
"ldrexh", "\t$dest, [$ptr]", "",
[]>;
def t2LDREX : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
Size4Bytes, NoItinerary,
"ldrex", "\t$dest, [$ptr]", "",
[]>;
def t2LDREXD : Thumb2I<(outs GPR:$dest, GPR:$dest2), (ins GPR:$ptr),
AddrModeNone, Size4Bytes, NoItinerary,
"ldrexd", "\t$dest, $dest2, [$ptr]", "",
[]>;
}
let mayStore = 1 in {
def t2STREXB : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
AddrModeNone, Size4Bytes, NoItinerary,
"strexb", "\t$success, $src, [$ptr]", "",
[]>;
def t2STREXH : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
AddrModeNone, Size4Bytes, NoItinerary,
"strexh", "\t$success, $src, [$ptr]", "",
[]>;
def t2STREX : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
AddrModeNone, Size4Bytes, NoItinerary,
"strex", "\t$success, $src, [$ptr]", "",
[]>;
def t2STREXD : Thumb2I<(outs GPR:$success),
(ins GPR:$src, GPR:$src2, GPR:$ptr),
AddrModeNone, Size4Bytes, NoItinerary,
"strexd", "\t$success, $src, $src2, [$ptr]", "",
[]>;
}
//===----------------------------------------------------------------------===//
// TLS Instructions
//