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https://github.com/c64scene-ar/llvm-6502.git
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d4f6d111c1
This just lifts the logic into a static helper function, sinks the legacy pass to be a trivial wrapper of that helper fuction, and adds a trivial wrapper for the new PM as well. Not much to see here. I switched a test case to run in both modes, but we have to strip the dead prototypes separately as that pass isn't in the new pass manager (yet). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226999 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===- LowerExpectIntrinsic.h - LowerExpectIntrinsic pass -------*- C++ -*-===//
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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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/// \file
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///
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/// The header file for the LowerExpectIntrinsic pass as used by the new pass
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/// manager.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_LOWEREXPECTINTRINSIC_H
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#define LLVM_TRANSFORMS_SCALAR_LOWEREXPECTINTRINSIC_H
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#include "llvm/IR/Function.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class LowerExpectIntrinsicPass {
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public:
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static StringRef name() { return "LowerExpectIntrinsicPass"; }
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/// \brief Run the pass over the function.
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///
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/// This will lower all of th expect intrinsic calls in this function into
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/// branch weight metadata. That metadata will subsequently feed the analysis
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/// of the probabilities and frequencies of the CFG. After running this pass,
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/// no more expect intrinsics remain, allowing the rest of the optimizer to
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/// ignore them.
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PreservedAnalyses run(Function &F);
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};
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}
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#endif
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