diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.h')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h index 88d8e6ca3f..dc1a13c79f 100644 --- a/lib/Target/X86/X86ISelLowering.h +++ b/lib/Target/X86/X86ISelLowering.h @@ -218,12 +218,15 @@ namespace llvm { /// DAG node. virtual const char *getTargetNodeName(unsigned Opcode) const; - /// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to - /// be zero. Op is expected to be a target specific node. Used by DAG - /// combiner. - virtual bool isMaskedValueZeroForTargetNode(const SDOperand &Op, - uint64_t Mask) const; - + /// computeMaskedBitsForTargetNode - Determine which of the bits specified + /// in Mask are known to be either zero or one and return them in the + /// KnownZero/KnownOne bitsets. + virtual void computeMaskedBitsForTargetNode(const SDOperand Op, + uint64_t Mask, + uint64_t &KnownZero, + uint64_t &KnownOne, + unsigned Depth = 0) const; + SDOperand getReturnAddressFrameIndex(SelectionDAG &DAG); std::vector<unsigned> |