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d97964253e
a standalone pass. There is no call graph or even interesting analysis for this part of function attributes -- it is literally inferring attributes based on the target library identification. As such, we can do it using a much simpler module pass that just walks the declarations. This can also happen much earlier in the pass pipeline which has benefits for any number of other passes. In the process, I've cleaned up one particular aspect of the logic which was necessary in order to separate the two passes cleanly. It now counts inferred attributes independently rather than just counting all the inferred attributes as one, and the counts are more clearly explained. The two test cases we had for this code path are both ... woefully inadequate and copies of each other. I've kept the superset test and updated it. We need more testing here, but I had to pick somewhere to stop fixing everything broken I saw here. Differential Revision: http://reviews.llvm.org/D15676 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256466 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//===-- InferFunctionAttrs.h - Infer implicit function attributes ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// Interfaces for passes which infer implicit function attributes from the
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/// name and signature of function declarations.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_IPO_INFERFUNCTIONATTRS_H
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#define LLVM_TRANSFORMS_IPO_INFERFUNCTIONATTRS_H
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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/// A pass which infers function attributes from the names and signatures of
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/// function declarations in a module.
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class InferFunctionAttrsPass {
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public:
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static StringRef name() { return "InferFunctionAttrsPass"; }
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PreservedAnalyses run(Module &M, AnalysisManager<Module> *AM);
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};
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/// Create a legacy pass manager instance of a pass to infer function
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/// attributes.
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Pass *createInferFunctionAttrsLegacyPass();
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}
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#endif // LLVM_TRANSFORMS_IPO_INFERFUNCTIONATTRS_H
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