diff options
Diffstat (limited to 'include/llvm/CodeGen/FastISel.h')
| -rw-r--r-- | include/llvm/CodeGen/FastISel.h | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/include/llvm/CodeGen/FastISel.h b/include/llvm/CodeGen/FastISel.h index 5a2b0e7..005c7bc 100644 --- a/include/llvm/CodeGen/FastISel.h +++ b/include/llvm/CodeGen/FastISel.h @@ -60,6 +60,7 @@ protected: const TargetData &TD; const TargetInstrInfo &TII; const TargetLowering &TLI; + bool IsBottomUp; public: /// startNewBlock - Set the current block to which generated machine @@ -105,7 +106,7 @@ public: /// getRegForGEPIndex - This is a wrapper around getRegForValue that also /// takes care of truncating or sign-extending the given getelementptr /// index value. - unsigned getRegForGEPIndex(const Value *V); + std::pair<unsigned, bool> getRegForGEPIndex(const Value *V); virtual ~FastISel(); @@ -141,7 +142,8 @@ protected: /// virtual unsigned FastEmit_r(MVT VT, MVT RetVT, - unsigned Opcode, unsigned Op0); + unsigned Opcode, + unsigned Op0, bool Op0IsKill); /// FastEmit_rr - This method is called by target-independent code /// to request that an instruction with the given type, opcode, and @@ -150,7 +152,8 @@ protected: virtual unsigned FastEmit_rr(MVT VT, MVT RetVT, unsigned Opcode, - unsigned Op0, unsigned Op1); + unsigned Op0, bool Op0IsKill, + unsigned Op1, bool Op1IsKill); /// FastEmit_ri - This method is called by target-independent code /// to request that an instruction with the given type, opcode, and @@ -159,7 +162,8 @@ protected: virtual unsigned FastEmit_ri(MVT VT, MVT RetVT, unsigned Opcode, - unsigned Op0, uint64_t Imm); + unsigned Op0, bool Op0IsKill, + uint64_t Imm); /// FastEmit_rf - This method is called by target-independent code /// to request that an instruction with the given type, opcode, and @@ -168,7 +172,8 @@ protected: virtual unsigned FastEmit_rf(MVT VT, MVT RetVT, unsigned Opcode, - unsigned Op0, const ConstantFP *FPImm); + unsigned Op0, bool Op0IsKill, + const ConstantFP *FPImm); /// FastEmit_rri - This method is called by target-independent code /// to request that an instruction with the given type, opcode, and @@ -177,7 +182,9 @@ protected: virtual unsigned FastEmit_rri(MVT VT, MVT RetVT, unsigned Opcode, - unsigned Op0, unsigned Op1, uint64_t Imm); + unsigned Op0, bool Op0IsKill, + unsigned Op1, bool Op1IsKill, + uint64_t Imm); /// FastEmit_ri_ - This method is a wrapper of FastEmit_ri. It first tries /// to emit an instruction with an immediate operand using FastEmit_ri. @@ -185,8 +192,8 @@ protected: /// FastEmit_rr instead. unsigned FastEmit_ri_(MVT VT, unsigned Opcode, - unsigned Op0, uint64_t Imm, - MVT ImmType); + unsigned Op0, bool Op0IsKill, + uint64_t Imm, MVT ImmType); /// FastEmit_rf_ - This method is a wrapper of FastEmit_rf. It first tries /// to emit an instruction with an immediate operand using FastEmit_rf. @@ -194,8 +201,8 @@ protected: /// FastEmit_rr instead. unsigned FastEmit_rf_(MVT VT, unsigned Opcode, - unsigned Op0, const ConstantFP *FPImm, - MVT ImmType); + unsigned Op0, bool Op0IsKill, + const ConstantFP *FPImm, MVT ImmType); /// FastEmit_i - This method is called by target-independent code /// to request that an instruction with the given type, opcode, and @@ -224,35 +231,40 @@ protected: /// unsigned FastEmitInst_r(unsigned MachineInstOpcode, const TargetRegisterClass *RC, - unsigned Op0); + unsigned Op0, bool Op0IsKill); /// FastEmitInst_rr - Emit a MachineInstr with two register operands /// and a result register in the given register class. /// unsigned FastEmitInst_rr(unsigned MachineInstOpcode, const TargetRegisterClass *RC, - unsigned Op0, unsigned Op1); + unsigned Op0, bool Op0IsKill, + unsigned Op1, bool Op1IsKill); /// FastEmitInst_ri - Emit a MachineInstr with two register operands /// and a result register in the given register class. /// unsigned FastEmitInst_ri(unsigned MachineInstOpcode, const TargetRegisterClass *RC, - unsigned Op0, uint64_t Imm); + unsigned Op0, bool Op0IsKill, + uint64_t Imm); /// FastEmitInst_rf - Emit a MachineInstr with two register operands /// and a result register in the given register class. /// unsigned FastEmitInst_rf(unsigned MachineInstOpcode, const TargetRegisterClass *RC, - unsigned Op0, const ConstantFP *FPImm); + unsigned Op0, bool Op0IsKill, + const ConstantFP *FPImm); /// FastEmitInst_rri - Emit a MachineInstr with two register operands, /// an immediate, and a result register in the given register class. /// unsigned FastEmitInst_rri(unsigned MachineInstOpcode, const TargetRegisterClass *RC, - unsigned Op0, unsigned Op1, uint64_t Imm); + unsigned Op0, bool Op0IsKill, + unsigned Op1, bool Op1IsKill, + uint64_t Imm); /// FastEmitInst_i - Emit a MachineInstr with a single immediate /// operand, and a result register in the given register class. @@ -263,12 +275,13 @@ protected: /// FastEmitInst_extractsubreg - Emit a MachineInstr for an extract_subreg /// from a specified index of a superregister to a specified type. unsigned FastEmitInst_extractsubreg(MVT RetVT, - unsigned Op0, uint32_t Idx); + unsigned Op0, bool Op0IsKill, + uint32_t Idx); /// FastEmitZExtFromI1 - Emit MachineInstrs to compute the value of Op /// with all but the least significant bit set to zero. unsigned FastEmitZExtFromI1(MVT VT, - unsigned Op); + unsigned Op0, bool Op0IsKill); /// FastEmitBranch - Emit an unconditional branch to the given block, /// unless it is the immediate (fall-through) successor, and update @@ -316,6 +329,9 @@ private: /// called when the value isn't already available in a register and must /// be materialized with new instructions. unsigned materializeRegForValue(const Value *V, MVT VT); + + /// hasTrivialKill - Test whether the given value has exactly one use. + bool hasTrivialKill(const Value *V) const; }; } |
