A set of parameters used to control various transforms performed by the LoopUnroll pass. More...
#include "llvm/Transforms/Scalar/LoopUnrollPass.h"
Public Member Functions | |
| LoopUnrollOptions (int OptLevel=2, bool OnlyWhenForced=false) | |
| LoopUnrollOptions & | setPartial (bool Partial) |
| Enables or disables partial unrolling. More... | |
| LoopUnrollOptions & | setRuntime (bool Runtime) |
| Enables or disables unrolling of loops with runtime trip count. More... | |
| LoopUnrollOptions & | setPeeling (bool Peeling) |
| Enables or disables loop peeling. More... | |
| LoopUnrollOptions & | setUpperBound (bool UpperBound) |
| Enables or disables the use of trip count upper bound in loop unrolling. More... | |
| LoopUnrollOptions & | setOptLevel (int O) |
Public Attributes | |
| Optional< bool > | AllowPartial |
| Optional< bool > | AllowPeeling |
| Optional< bool > | AllowRuntime |
| Optional< bool > | AllowUpperBound |
| int | OptLevel |
| bool | OnlyWhenForced |
| If false, use a cost model to determine whether unrolling of a loop is profitable. More... | |
Detailed Description
A set of parameters used to control various transforms performed by the LoopUnroll pass.
Each of the boolean parameters can be set to: true - enabling the transformation. false - disabling the transformation. None - relying on a global default.
There is also OptLevel parameter, which is used for additional loop unroll tuning.
Intended use is to create a default object, modify parameters with additional setters and then pass it to LoopUnrollPass.
Definition at line 52 of file LoopUnrollPass.h.
Constructor & Destructor Documentation
◆ LoopUnrollOptions()
Definition at line 64 of file LoopUnrollPass.h.
Member Function Documentation
◆ setOptLevel()
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inline |
Definition at line 94 of file LoopUnrollPass.h.
References llvm::RISCVFenceField::O.
Referenced by checkParametrizedPassName().
◆ setPartial()
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inline |
Enables or disables partial unrolling.
When disabled only full unrolling is allowed.
Definition at line 69 of file LoopUnrollPass.h.
Referenced by checkParametrizedPassName().
◆ setPeeling()
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inline |
Enables or disables loop peeling.
Definition at line 81 of file LoopUnrollPass.h.
Referenced by checkParametrizedPassName().
◆ setRuntime()
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inline |
Enables or disables unrolling of loops with runtime trip count.
Definition at line 75 of file LoopUnrollPass.h.
Referenced by checkParametrizedPassName().
◆ setUpperBound()
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inline |
Enables or disables the use of trip count upper bound in loop unrolling.
Definition at line 88 of file LoopUnrollPass.h.
Referenced by checkParametrizedPassName().
Member Data Documentation
◆ AllowPartial
Definition at line 53 of file LoopUnrollPass.h.
◆ AllowPeeling
Definition at line 54 of file LoopUnrollPass.h.
◆ AllowRuntime
Definition at line 55 of file LoopUnrollPass.h.
◆ AllowUpperBound
Definition at line 56 of file LoopUnrollPass.h.
◆ OnlyWhenForced
| bool llvm::LoopUnrollOptions::OnlyWhenForced |
If false, use a cost model to determine whether unrolling of a loop is profitable.
If true, only loops that explicitly request unrolling via metadata are considered. All other loops are skipped.
Definition at line 62 of file LoopUnrollPass.h.
◆ OptLevel
| int llvm::LoopUnrollOptions::OptLevel |
Definition at line 57 of file LoopUnrollPass.h.
The documentation for this struct was generated from the following file:
- include/llvm/Transforms/Scalar/LoopUnrollPass.h
