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Diffstat (limited to 'clang-r353983/include/llvm/Transforms/Utils.h')
| -rw-r--r-- | clang-r353983/include/llvm/Transforms/Utils.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/clang-r353983/include/llvm/Transforms/Utils.h b/clang-r353983/include/llvm/Transforms/Utils.h new file mode 100644 index 00000000..6e03453b --- /dev/null +++ b/clang-r353983/include/llvm/Transforms/Utils.h @@ -0,0 +1,124 @@ +//===- llvm/Transforms/Utils.h - Utility Transformations --------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This header file defines prototypes for accessor functions that expose passes +// in the Utils transformations library. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_TRANSFORMS_UTILS_H +#define LLVM_TRANSFORMS_UTILS_H + +namespace llvm { + +class ModulePass; +class FunctionPass; +class Pass; + +//===----------------------------------------------------------------------===// +// createMetaRenamerPass - Rename everything with metasyntatic names. +// +ModulePass *createMetaRenamerPass(); + +//===----------------------------------------------------------------------===// +// +// LowerInvoke - This pass removes invoke instructions, converting them to call +// instructions. +// +FunctionPass *createLowerInvokePass(); +extern char &LowerInvokePassID; + +//===----------------------------------------------------------------------===// +// +// InstructionNamer - Give any unnamed non-void instructions "tmp" names. +// +FunctionPass *createInstructionNamerPass(); +extern char &InstructionNamerID; + +//===----------------------------------------------------------------------===// +// +// LowerSwitch - This pass converts SwitchInst instructions into a sequence of +// chained binary branch instructions. +// +FunctionPass *createLowerSwitchPass(); +extern char &LowerSwitchID; + +//===----------------------------------------------------------------------===// +// +// EntryExitInstrumenter pass - Instrument function entry/exit with calls to +// mcount(), @__cyg_profile_func_{enter,exit} and the like. There are two +// variants, intended to run pre- and post-inlining, respectively. +// +FunctionPass *createEntryExitInstrumenterPass(); +FunctionPass *createPostInlineEntryExitInstrumenterPass(); + +//===----------------------------------------------------------------------===// +// +// BreakCriticalEdges - Break all of the critical edges in the CFG by inserting +// a dummy basic block. This pass may be "required" by passes that cannot deal +// with critical edges. For this usage, a pass must call: +// +// AU.addRequiredID(BreakCriticalEdgesID); +// +// This pass obviously invalidates the CFG, but can update forward dominator +// (set, immediate dominators, tree, and frontier) information. +// +FunctionPass *createBreakCriticalEdgesPass(); +extern char &BreakCriticalEdgesID; + +//===----------------------------------------------------------------------===// +// +// LCSSA - This pass inserts phi nodes at loop boundaries to simplify other loop +// optimizations. +// +Pass *createLCSSAPass(); +extern char &LCSSAID; + +//===----------------------------------------------------------------------===// +// +// AddDiscriminators - Add DWARF path discriminators to the IR. +FunctionPass *createAddDiscriminatorsPass(); + +//===----------------------------------------------------------------------===// +// +// PromoteMemoryToRegister - This pass is used to promote memory references to +// be register references. A simple example of the transformation performed by +// this pass is: +// +// FROM CODE TO CODE +// %X = alloca i32, i32 1 ret i32 42 +// store i32 42, i32 *%X +// %Y = load i32* %X +// ret i32 %Y +// +FunctionPass *createPromoteMemoryToRegisterPass(); + +//===----------------------------------------------------------------------===// +// +// LoopSimplify - Insert Pre-header blocks into the CFG for every function in +// the module. This pass updates dominator information, loop information, and +// does not add critical edges to the CFG. +// +// AU.addRequiredID(LoopSimplifyID); +// +Pass *createLoopSimplifyPass(); +extern char &LoopSimplifyID; + +/// This function returns a new pass that downgrades the debug info in the +/// module to line tables only. +ModulePass *createStripNonLineTableDebugInfoPass(); + +//===----------------------------------------------------------------------===// +// +// ControlHeightReudction - Merges conditional blocks of code and reduces the +// number of conditional branches in the hot paths based on profiles. +// +FunctionPass *createControlHeightReductionLegacyPass(); +} + +#endif |