diff options
| author | Jim Grosbach <grosbach@apple.com> | 2009-12-14 18:56:47 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2009-12-14 18:56:47 +0000 |
| commit | c219e4dd5919e2b72b80698fd50aa05e1580a55b (patch) | |
| tree | a97265238a1e5f072911f573505c784d53ffbc10 | |
| parent | 015d3b570412588241599bee0ef3400354666785 (diff) | |
add Thumb2 atomic and memory barrier instruction definitions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91310 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index 9489815299..0f2024f4fa 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -1065,6 +1065,66 @@ def t2MOVCCror : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$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 // |