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| author | Jim Grosbach <grosbach@apple.com> | 2010-06-18 22:35:32 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-06-18 22:35:32 +0000 |
| commit | 6860bb7796477f78fe8337b27031e64690be0a0d (patch) | |
| tree | 3d245ccf66fefaeda4da12299f160fd3cb8e4904 | |
| parent | 64ae6577ba44a429e38e4289d049af3267ecc82d (diff) | |
| download | bcm5719-llvm-6860bb7796477f78fe8337b27031e64690be0a0d.tar.gz bcm5719-llvm-6860bb7796477f78fe8337b27031e64690be0a0d.zip | |
Enable Expand handling of atomics for subtargets that can't do them inline.
llvm-svn: 106336
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 216ba6578ed..778f6c02218 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -407,10 +407,46 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand); // Handle atomics directly for ARMv[67] (except for Thumb1), otherwise // use the default expansion. - TargetLowering::LegalizeAction AtomicAction = + bool canHandleAtomics = (Subtarget->hasV7Ops() || - (Subtarget->hasV6Ops() && !Subtarget->isThumb1Only())) ? Custom : Expand; - setOperationAction(ISD::MEMBARRIER, MVT::Other, AtomicAction); + (Subtarget->hasV6Ops() && !Subtarget->isThumb1Only())); + if (canHandleAtomics) { + // membarrier needs custom lowering; the rest are legal and handled + // normally. + setOperationAction(ISD::MEMBARRIER, MVT::Other, Custom); + } else { + // Set them all for expansion, which will force libcalls. + setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand); + setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_ADD, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_ADD, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_ADD, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_SUB, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_SUB, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_SUB, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_AND, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_AND, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_AND, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_OR, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_OR, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_OR, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_XOR, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_XOR, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_XOR, MVT::i32, Expand); + setOperationAction(ISD::ATOMIC_LOAD_NAND, MVT::i8, Expand); + setOperationAction(ISD::ATOMIC_LOAD_NAND, MVT::i16, Expand); + setOperationAction(ISD::ATOMIC_LOAD_NAND, MVT::i32, Expand); + } + // 64-bit versions are always libcalls (for now) + setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_ADD, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_SUB, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_AND, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_OR, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_XOR, MVT::i64, Expand); + setOperationAction(ISD::ATOMIC_LOAD_NAND, MVT::i64, Expand); // If the subtarget does not have extract instructions, sign_extend_inreg // needs to be expanded. Extract is available in ARM mode on v6 and up, |
