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llvm-mirror/tools/opt/NewPMDriver.h
Sam Elliott e9e58e405f Keep Optimization Remark Yaml in NewPM
Summary:
The New Pass Manager infrastructure was forgetting to keep around the optimization remark yaml file that the compiler might have been producing. This meant setting the option to '-' for stdout worked, but setting it to a filename didn't give file output (presumably it was deleted because compilation didn't explicitly keep it). This change just ensures that the file is kept if compilation succeeds.

So far I have updated one of the optimization remark output tests to add a version with the new pass manager. It is my intention for this patch to also include changes to all tests that use `-opt-remark-output=` but I wanted to get the code patch ready for review while I was making all those changes.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33951

Reviewers: anemet, chandlerc

Reviewed By: anemet, chandlerc

Subscribers: javed.absar, chandlerc, fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D36906

llvm-svn: 311271
2017-08-20 01:30:45 +00:00

64 lines
2.1 KiB
C++

//===- NewPMDriver.h - Function to drive opt with the new PM ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
///
/// A single function which is called to drive the opt behavior for the new
/// PassManager.
///
/// This is only in a separate TU with a header to avoid including all of the
/// old pass manager headers and the new pass manager headers into the same
/// file. Eventually all of the routines here will get folded back into
/// opt.cpp.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_OPT_NEWPMDRIVER_H
#define LLVM_TOOLS_OPT_NEWPMDRIVER_H
namespace llvm {
class StringRef;
class LLVMContext;
class Module;
class TargetMachine;
class tool_output_file;
namespace opt_tool {
enum OutputKind {
OK_NoOutput,
OK_OutputAssembly,
OK_OutputBitcode,
OK_OutputThinLTOBitcode,
};
enum VerifierKind {
VK_NoVerifier,
VK_VerifyInAndOut,
VK_VerifyEachPass
};
}
/// \brief Driver function to run the new pass manager over a module.
///
/// This function only exists factored away from opt.cpp in order to prevent
/// inclusion of the new pass manager headers and the old headers into the same
/// file. It's interface is consequentially somewhat ad-hoc, but will go away
/// when the transition finishes.
///
/// ThinLTOLinkOut is only used when OK is OK_OutputThinLTOBitcode, and can be
/// nullptr.
bool runPassPipeline(StringRef Arg0, Module &M, TargetMachine *TM,
tool_output_file *Out, tool_output_file *ThinLinkOut,
tool_output_file *OptRemarkFile, StringRef PassPipeline,
opt_tool::OutputKind OK, opt_tool::VerifierKind VK,
bool ShouldPreserveAssemblyUseListOrder,
bool ShouldPreserveBitcodeUseListOrder,
bool EmitSummaryIndex, bool EmitModuleHash);
}
#endif