| //===-- GuardUtils.h - Utils for work with guards ---------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // Utils that are used to perform transformations related to guards and their |
| // conditions. |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TRANSFORMS_UTILS_GUARDUTILS_H |
| #define LLVM_TRANSFORMS_UTILS_GUARDUTILS_H |
| |
| namespace llvm { |
| |
| class CallInst; |
| class Function; |
| |
| /// Splits control flow at point of \p Guard, replacing it with explicit branch |
| /// by the condition of guard's first argument. The taken branch then goes to |
| /// the block that contains \p Guard's successors, and the non-taken branch |
| /// goes to a newly-created deopt block that contains a sole call of the |
| /// deoptimize function \p DeoptIntrinsic. |
| void makeGuardControlFlowExplicit(Function *DeoptIntrinsic, CallInst *Guard); |
| |
| } // llvm |
| |
| #endif // LLVM_TRANSFORMS_UTILS_GUARDUTILS_H |