diff options
Diffstat (limited to 'llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h')
| -rw-r--r-- | llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h index 5dfd05e6028..8907cccc4dd 100644 --- a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h +++ b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.h @@ -26,6 +26,17 @@ namespace exegesis { +// A collection of instructions that are to be assembled, executed and measured. +struct BenchmarkConfiguration { + // This code is run before the Snippet is iterated. Since it is part of the + // measurement it should be as short as possible. It is usually used to setup + // the content of the Registers. + std::vector<llvm::MCInst> SnippetSetup; + + // The sequence of instructions that are to be repeated. + std::vector<llvm::MCInst> Snippet; +}; + // Common code for all benchmark modes. class BenchmarkRunner { public: @@ -56,9 +67,9 @@ protected: private: virtual InstructionBenchmark::ModeE getMode() const = 0; - virtual llvm::Expected<std::vector<llvm::MCInst>> - createSnippet(RegisterAliasingTrackerCache &RATC, unsigned Opcode, - llvm::raw_ostream &Debug) const = 0; + virtual llvm::Expected<BenchmarkConfiguration> + createConfiguration(RegisterAliasingTrackerCache &RATC, unsigned Opcode, + llvm::raw_ostream &Debug) const = 0; virtual std::vector<BenchmarkMeasure> runMeasurements(const ExecutableFunction &EF, |
