diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/CodeGen/Passes.h | 35 | ||||
| -rw-r--r-- | include/llvm/Target/TargetOptions.h | 4 |
2 files changed, 26 insertions, 13 deletions
diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h index f2deadb486..ab07aef3ac 100644 --- a/include/llvm/CodeGen/Passes.h +++ b/include/llvm/CodeGen/Passes.h @@ -76,6 +76,8 @@ public: bool getEnableTailMerge() const { return EnableTailMerge; } void setEnableTailMerge(bool Enable) { setOpt(EnableTailMerge, Enable); } + bool getOptimizeRegAlloc() const; + /// Add common target configurable passes that perform LLVM IR to IR /// transforms following machine independent optimization. virtual void addIRPasses(); @@ -122,8 +124,17 @@ protected: return false; } - // addRegAlloc - Add standard passes related to register allocation. - virtual void addRegAlloc(); + /// createTargetRegisterAllocator - Create the register allocator pass for + /// this target at the current optimization level. + virtual FunctionPass *createTargetRegisterAllocator(bool Optimized); + + /// addFastRegAlloc - Add the minimum set of target-independent passes that + /// are required for fast register allocation. + virtual void addFastRegAlloc(FunctionPass *RegAllocPass); + + // addOptimizedRegAlloc - Add passes related to register allocation. + // LLVMTargetMachine provides standard regalloc passes for most targets. + virtual void addOptimizedRegAlloc(FunctionPass *RegAllocPass); /// addPostRegAlloc - This method may be implemented by targets that want /// to run passes after register allocation but before prolog-epilog @@ -160,6 +171,10 @@ protected: /// Add a target-independent CodeGen pass at this point in the pipeline. void addPass(char &ID); + /// addMachinePasses helper to create the target-selected or overriden + /// regalloc pass. + FunctionPass *createRegAllocPass(bool Optimized); + /// printNoVerify - Add a pass to dump the machine function, if debugging is /// enabled. /// @@ -200,6 +215,10 @@ namespace llvm { /// EdgeBundles analysis - Bundle machine CFG edges. extern char &EdgeBundlesID; + /// LiveVariables pass - This pass computes the set of blocks in which each + /// variable is life and sets machine operand kill flags. + extern char &LiveVariablesID; + /// PHIElimination - This pass eliminates machine instruction PHI nodes /// by inserting copy instructions. This destroys SSA information, but is the /// desired input for some register allocators. This pass is "required" by @@ -222,8 +241,11 @@ namespace llvm { /// register allocators. extern char &TwoAddressInstructionPassID; - /// RegisteCoalescer - This pass merges live ranges to eliminate copies. - extern char &RegisterCoalescerPassID; + /// ProcessImpicitDefs pass - This pass removes IMPLICIT_DEFs. + extern char &ProcessImplicitDefsID; + + /// RegisterCoalescer - This pass merges live ranges to eliminate copies. + extern char &RegisterCoalescerID; /// MachineScheduler - This pass schedules machine instructions. extern char &MachineSchedulerID; @@ -239,11 +261,6 @@ namespace llvm { /// DeadMachineInstructionElim - This pass removes dead machine instructions. extern char &DeadMachineInstructionElimID; - /// Creates a register allocator as the user specified on the command line, or - /// picks one that matches OptLevel. - /// - FunctionPass *createRegisterAllocator(CodeGenOpt::Level OptLevel); - /// FastRegisterAllocation Pass - This pass register allocates as fast as /// possible. It is best suited for debug code where live ranges are short. /// diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h index 852e67f582..7730ab90e8 100644 --- a/include/llvm/Target/TargetOptions.h +++ b/include/llvm/Target/TargetOptions.h @@ -30,10 +30,6 @@ namespace llvm { }; } - /// StrongPHIElim - This flag enables more aggressive PHI elimination - /// wth earlier copy coalescing. - extern bool StrongPHIElim; - class TargetOptions { public: TargetOptions() |