Run instruction simplification across each instruction in the function. More...
#include "llvm/Transforms/Scalar/InstSimplifyPass.h"
Public Member Functions | |
| PreservedAnalyses | run (Function &F, FunctionAnalysisManager &AM) |
 Public Member Functions inherited from llvm::PassInfoMixin< InstSimplifyPass > | |
| void | printPipeline (raw_ostream &OS, function_ref< StringRef(StringRef)> MapClassName2PassName) |
Additional Inherited Members | |
| Static Public Member Functions inherited from llvm::PassInfoMixin< InstSimplifyPass > | |
| static StringRef | name () |
| Gets the name of the pass we are mixed into. | |
Detailed Description
Run instruction simplification across each instruction in the function.
Instruction simplification has useful constraints in some contexts:
- It will never introduce new instructions.
- There is no need to iterate to a fixed point.
Many passes use instruction simplification as a library facility, but it may also be useful (in tests and other contexts) to have access to this very restricted transform at a pass granularity. However, for a much more powerful and comprehensive peephole optimization engine, see the instcombine pass instead.
Definition at line 32 of file InstSimplifyPass.h.
Member Function Documentation
◆ run()
| PreservedAnalyses InstSimplifyPass::run | ( | Function & | F, |
| FunctionAnalysisManager & | AM | ||
| ) |
Definition at line 123 of file InstSimplifyPass.cpp.
References llvm::PreservedAnalyses::all(), DL, F, llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getResult(), llvm::PreservedAnalyses::preserveSet(), and runImpl().
The documentation for this class was generated from the following files:
- include/llvm/Transforms/Scalar/InstSimplifyPass.h
- lib/Transforms/Scalar/InstSimplifyPass.cpp
