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[PM] Port GCOVProfiler pass to the new pass manager

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llvm-svn: 271823
This commit is contained in:
Xinliang David Li 2016-06-05 05:12:23 +00:00
parent 73b5d1e27d
commit a585afd293
11 changed files with 79 additions and 1 deletions
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31
include/llvm/Transforms/GCOVProfiler.h Normal file
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@ -0,0 +1,31 @@
//===- Transforms/GCOVProfiler.h - GCOVProfiler pass ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file provides the interface for the GCOV style profiler pass.
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_GCOVPROFILER_H
#define LLVM_TRANSFORMS_GCOVPROFILER_H
#include "llvm/IR/PassManager.h"
#include "llvm/Transforms/Instrumentation.h"
namespace llvm {
/// The gcov-style instrumentation pass
class GCOVProfilerPass : public PassInfoMixin<GCOVProfilerPass> {
public:
GCOVProfilerPass(const GCOVOptions &Options = GCOVOptions::getDefault()) : GCOVOpts(Options) { }
PreservedAnalyses run(Module &M, AnalysisManager<Module> &AM);
private:
GCOVOptions GCOVOpts;
};
} // End llvm namespace
#endif

1
lib/Passes/PassBuilder.cpp
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@ -50,6 +50,7 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/Regex.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/GCOVProfiler.h"
#include "llvm/Transforms/IPO/ConstantMerge.h"
#include "llvm/Transforms/IPO/ElimAvailExtern.h"
#include "llvm/Transforms/IPO/ForceFunctionAttrs.h"

1
lib/Passes/PassRegistry.def
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@ -43,6 +43,7 @@ MODULE_PASS("forceattrs", ForceFunctionAttrsPass())
MODULE_PASS("globaldce", GlobalDCEPass())
MODULE_PASS("globalopt", GlobalOptPass())
MODULE_PASS("inferattrs", InferFunctionAttrsPass())
MODULE_PASS("insert-gcov-profiling", GCOVProfilerPass())
MODULE_PASS("internalize", InternalizePass())
MODULE_PASS("instrprof", InstrProfiling())
MODULE_PASS("invalidate<all>", InvalidateAllAnalysesPass())

14
lib/Transforms/Instrumentation/GCOVProfiling.cpp
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@ -14,7 +14,6 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Instrumentation.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/STLExtras.h"
@ -35,6 +34,8 @@
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/GCOVProfiler.h"
#include "llvm/Transforms/Instrumentation.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include <algorithm>
#include <memory>
@ -464,6 +465,17 @@ bool GCOVProfiler::runOnModule(Module &M) {
return false;
}
PreservedAnalyses GCOVProfilerPass::run(Module &M,
AnalysisManager<Module> &AM) {
GCOVProfiler Profiler(GCOVOpts);
if (!Profiler.runOnModule(M))
return PreservedAnalyses::all();
return PreservedAnalyses::none();
}
static bool functionHasLines(Function &F) {
// Check whether this function actually has any source lines. Not only
// do these waste space, they also can crash gcov.

4
test/Transforms/GCOVProfiling/function-numbering.ll
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@ -7,6 +7,10 @@
; RUN: opt -insert-gcov-profiling -S < %t2 | FileCheck --check-prefix GCDA %s
; RUN: llvm-cov gcov -n -dump %T/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s
; RUNN: rm %T/function-numbering.gcno
; RUN: opt -passes=insert-gcov-profiling -S < %t2 | FileCheck --check-prefix GCDA %s
; RUN: llvm-cov gcov -n -dump %T/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"

4
test/Transforms/GCOVProfiling/global-ctor.ll
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@ -4,6 +4,10 @@
; RUN: not grep '_GLOBAL__sub_I_global-ctor' %T/global-ctor.gcno
; RUN: rm %T/global-ctor.gcno
; RUN: opt -passes=insert-gcov-profiling -disable-output < %t2
; RUN: not grep '_GLOBAL__sub_I_global-ctor' %T/global-ctor.gcno
; RUN: rm %T/global-ctor.gcno
@x = global i32 0, align 4
@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_global-ctor.ll, i8* null }]

3
test/Transforms/GCOVProfiling/linezero.ll
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@ -1,6 +1,9 @@
; RUN: sed -e 's|PATTERN|%/T|g' %s | opt -insert-gcov-profiling -disable-output
; RUN: rm %T/linezero.gcno
; RUN: sed -e 's|PATTERN|%/T|g' %s | opt -passes=insert-gcov-profiling -disable-output
; RUN: rm %T/linezero.gcno
; This is a crash test.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

4
test/Transforms/GCOVProfiling/linkagename.ll
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@ -4,6 +4,10 @@
; RUN: grep _Z3foov %T/linkagename.gcno
; RUN: rm %T/linkagename.gcno
; RUN: opt -passes=insert-gcov-profiling -disable-output < %t2
; RUN: grep _Z3foov %T/linkagename.gcno
; RUN: rm %T/linkagename.gcno
define void @_Z3foov() !dbg !5 {
entry:
ret void, !dbg !8

1
test/Transforms/GCOVProfiling/modules.ll
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@ -1,4 +1,5 @@
; RUN: opt -insert-gcov-profiling -o - < %s | llvm-dis | FileCheck -check-prefix=EMIT-ARCS %s
; RUN: opt -passes=insert-gcov-profiling -o - < %s | llvm-dis | FileCheck -check-prefix=EMIT-ARCS %s
; EMIT-ARCS-NOT: call void @llvm_gcda_start_file

9
test/Transforms/GCOVProfiling/return-block.ll
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@ -9,6 +9,15 @@
; But we can optionally emit it second, to match newer gcc versions.
; RUN: opt -insert-gcov-profiling -gcov-exit-block-before-body -disable-output %t2
; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck -check-prefix=CHECK -check-prefix=RETURN-SECOND %s
; RUN: rm %T/return-block.gcno
; By default, the return block is last.
; RUN: opt -passes=insert-gcov-profiling -disable-output %t2
; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck -check-prefix=CHECK -check-prefix=RETURN-LAST %s
; But we can optionally emit it second, to match newer gcc versions.
; RUN: opt -passes=insert-gcov-profiling -gcov-exit-block-before-body -disable-output %t2
; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck -check-prefix=CHECK -check-prefix=RETURN-SECOND %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

8
test/Transforms/GCOVProfiling/version.ll
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@ -8,6 +8,14 @@
; RUN: head -c8 %T/version.gcno | grep '^oncg.704'
; RUN: rm %T/version.gcno
; RUN: opt -passes=insert-gcov-profiling -disable-output < %t2
; RUN: head -c8 %T/version.gcno | grep '^oncg.204'
; RUN: rm %T/version.gcno
; RUN: not opt -passes=insert-gcov-profiling -default-gcov-version=asdfasdf -disable-output < %t2
; RUN: opt -passes=insert-gcov-profiling -default-gcov-version=407* -disable-output < %t2
; RUN: head -c8 %T/version.gcno | grep '^oncg.704'
; RUN: rm %T/version.gcno
define void @test() !dbg !5 {
ret void, !dbg !8
}