[clang] [llvm] Reapply "Add source file name for template instantiations in -ftime-trace" (PR #99545)
via cfe-commits
cfe-commits at lists.llvm.org
Thu Jul 18 11:26:54 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang
@llvm/pr-subscribers-clang-driver
Author: Utkarsh Saxena (usx95)
<details>
<summary>Changes</summary>
Fix the Windows test.
---
Patch is 27.13 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/99545.diff
13 Files Affected:
- (added) a-abfdec1d.o.tmp ()
- (modified) clang/docs/ReleaseNotes.rst (+3)
- (modified) clang/include/clang/Driver/Options.td (+4)
- (modified) clang/include/clang/Frontend/FrontendOptions.h (+7-1)
- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+1)
- (modified) clang/lib/Sema/SemaTemplateInstantiate.cpp (+8-3)
- (modified) clang/lib/Sema/SemaTemplateInstantiateDecl.cpp (+8-3)
- (modified) clang/test/Driver/ftime-trace-sections.cpp (+1-1)
- (modified) clang/test/Driver/ftime-trace.cpp (+20-19)
- (modified) clang/tools/driver/cc1_main.cpp (+2-1)
- (modified) clang/unittests/Support/TimeProfilerTest.cpp (+97-27)
- (modified) llvm/include/llvm/Support/TimeProfiler.h (+22-1)
- (modified) llvm/lib/Support/TimeProfiler.cpp (+53-8)
``````````diff
diff --git a/a-abfdec1d.o.tmp b/a-abfdec1d.o.tmp
new file mode 100644
index 0000000000000..e69de29bb2d1d
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index e0e86af257a19..971df672b6ca1 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -736,6 +736,9 @@ Improvements to Clang's time-trace
- Clang now specifies that using ``auto`` in a lambda parameter is a C++14 extension when
appropriate. (`#46059: <https://github.com/llvm/llvm-project/issues/46059>`_).
+- Clang now adds source file infomation for template instantiations as ``event["args"]["filename"]``. This
+ added behind an option ``-ftime-trace-verbose``. This is expected to increase the size of trace by 2-3 times.
+
Improvements to Coverage Mapping
--------------------------------
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 1675e435d210c..d3068c1b30a7a 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -3988,6 +3988,10 @@ def ftime_trace_granularity_EQ : Joined<["-"], "ftime-trace-granularity=">, Grou
HelpText<"Minimum time granularity (in microseconds) traced by time profiler">,
Visibility<[ClangOption, CC1Option, CLOption, DXCOption]>,
MarshallingInfoInt<FrontendOpts<"TimeTraceGranularity">, "500u">;
+def ftime_trace_verbose : Joined<["-"], "ftime-trace-verbose">, Group<f_Group>,
+ HelpText<"Make time trace capture verbose event details (e.g. source filenames). This can increase the size of the output by 2-3 times">,
+ Visibility<[ClangOption, CC1Option, CLOption, DXCOption]>,
+ MarshallingInfoFlag<FrontendOpts<"TimeTraceVerbose">>;
def ftime_trace_EQ : Joined<["-"], "ftime-trace=">, Group<f_Group>,
HelpText<"Similar to -ftime-trace. Specify the JSON file or a directory which will contain the JSON file">,
Visibility<[ClangOption, CC1Option, CLOption, DXCOption]>,
diff --git a/clang/include/clang/Frontend/FrontendOptions.h b/clang/include/clang/Frontend/FrontendOptions.h
index 5e5034fe01eb5..8241925c98476 100644
--- a/clang/include/clang/Frontend/FrontendOptions.h
+++ b/clang/include/clang/Frontend/FrontendOptions.h
@@ -580,6 +580,11 @@ class FrontendOptions {
/// Minimum time granularity (in microseconds) traced by time profiler.
unsigned TimeTraceGranularity;
+ /// Make time trace capture verbose event details (e.g. source filenames).
+ /// This can increase the size of the output by 2-3 times.
+ LLVM_PREFERRED_TYPE(bool)
+ unsigned TimeTraceVerbose : 1;
+
/// Path which stores the output files for -ftime-trace
std::string TimeTracePath;
@@ -601,7 +606,8 @@ class FrontendOptions {
EmitSymbolGraph(false), EmitExtensionSymbolGraphs(false),
EmitSymbolGraphSymbolLabelsForTesting(false),
EmitPrettySymbolGraphs(false), GenReducedBMI(false),
- UseClangIRPipeline(false), TimeTraceGranularity(500) {}
+ UseClangIRPipeline(false), TimeTraceGranularity(500),
+ TimeTraceVerbose(false) {}
/// getInputKindForExtension - Return the appropriate input kind for a file
/// extension. For example, "c" would return Language::C.
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 1fd6fba210042..6b33301d36401 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -6754,6 +6754,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
if (const char *Name = C.getTimeTraceFile(&JA)) {
CmdArgs.push_back(Args.MakeArgString("-ftime-trace=" + Twine(Name)));
Args.AddLastArg(CmdArgs, options::OPT_ftime_trace_granularity_EQ);
+ Args.AddLastArg(CmdArgs, options::OPT_ftime_trace_verbose);
}
if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) {
diff --git a/clang/lib/Sema/SemaTemplateInstantiate.cpp b/clang/lib/Sema/SemaTemplateInstantiate.cpp
index a7bc6749c5852..725b62db5e80a 100644
--- a/clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -3426,11 +3426,16 @@ Sema::InstantiateClass(SourceLocation PointOfInstantiation,
return true;
llvm::TimeTraceScope TimeScope("InstantiateClass", [&]() {
- std::string Name;
- llvm::raw_string_ostream OS(Name);
+ llvm::TimeTraceMetadata M;
+ llvm::raw_string_ostream OS(M.Detail);
Instantiation->getNameForDiagnostic(OS, getPrintingPolicy(),
/*Qualified=*/true);
- return Name;
+ if (llvm::isTimeTraceVerbose()) {
+ auto Loc = SourceMgr.getExpansionLoc(Instantiation->getLocation());
+ M.File = SourceMgr.getFilename(Loc);
+ M.Line = SourceMgr.getExpansionLineNumber(Loc);
+ }
+ return M;
});
Pattern = PatternDef;
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 01432301633ed..4e619f4b491a6 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -4966,11 +4966,16 @@ void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation,
}
llvm::TimeTraceScope TimeScope("InstantiateFunction", [&]() {
- std::string Name;
- llvm::raw_string_ostream OS(Name);
+ llvm::TimeTraceMetadata M;
+ llvm::raw_string_ostream OS(M.Detail);
Function->getNameForDiagnostic(OS, getPrintingPolicy(),
/*Qualified=*/true);
- return Name;
+ if (llvm::isTimeTraceVerbose()) {
+ auto Loc = SourceMgr.getExpansionLoc(Function->getLocation());
+ M.File = SourceMgr.getFilename(Loc);
+ M.Line = SourceMgr.getExpansionLineNumber(Loc);
+ }
+ return M;
});
// If we're performing recursive template instantiation, create our own
diff --git a/clang/test/Driver/ftime-trace-sections.cpp b/clang/test/Driver/ftime-trace-sections.cpp
index 0c16052bc0c3a..da7109b9d81a6 100644
--- a/clang/test/Driver/ftime-trace-sections.cpp
+++ b/clang/test/Driver/ftime-trace-sections.cpp
@@ -1,5 +1,5 @@
// RUN: rm -rf %t && mkdir %t && cd %t
-// RUN: %clangxx -S -ftime-trace -ftime-trace-granularity=0 -o out %s
+// RUN: %clangxx -S -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose -o out %s
// RUN: %python %S/ftime-trace-sections.py < out.json
template <typename T>
diff --git a/clang/test/Driver/ftime-trace.cpp b/clang/test/Driver/ftime-trace.cpp
index 5fe63de915a71..60c5885704b58 100644
--- a/clang/test/Driver/ftime-trace.cpp
+++ b/clang/test/Driver/ftime-trace.cpp
@@ -1,18 +1,18 @@
// RUN: rm -rf %t && mkdir -p %t && cd %t
-// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace -ftime-trace-granularity=0 -o out %s
+// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose -o out %s
// RUN: cat out.json \
// RUN: | %python -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' \
// RUN: | FileCheck %s
-// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=new-name.json -ftime-trace-granularity=0 -o out %s
+// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=new-name.json -ftime-trace-granularity=0 -ftime-trace-verbose -o out %s
// RUN: cat new-name.json \
// RUN: | %python -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' \
// RUN: | FileCheck %s
// RUN: mkdir dir1 dir2
-// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=dir1 -ftime-trace-granularity=0 -o out %s
+// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=dir1 -ftime-trace-granularity=0 -ftime-trace-verbose -o out %s
// RUN: cat dir1/out.json \
// RUN: | %python -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' \
// RUN: | FileCheck %s
-// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=dir2/ -ftime-trace-granularity=0 -o out %s
+// RUN: %clangxx -S -no-canonical-prefixes -ftime-trace=dir2/ -ftime-trace-granularity=0 -ftime-trace-verbose -o out %s
// RUN: cat dir2/out.json \
// RUN: | %python -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' \
// RUN: | FileCheck %s
@@ -34,32 +34,33 @@
// RUN: mkdir d e f && cp %s d/a.cpp && touch d/b.c
/// TODO: Support -fno-integrated-as.
-// RUN: %clang -### -c -ftime-trace -ftime-trace-granularity=0 -fintegrated-as d/a.cpp -o e/a.o 2>&1 | FileCheck %s --check-prefix=COMPILE1
-// COMPILE1: -cc1{{.*}} "-ftime-trace=e/a.json" "-ftime-trace-granularity=0"
+// RUN: %clang -### -c -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose -fintegrated-as d/a.cpp -o e/a.o 2>&1 | FileCheck %s --check-prefix=COMPILE1
+// COMPILE1: -cc1{{.*}} "-ftime-trace=e/a.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
-// RUN: %clang -### -c -ftime-trace -ftime-trace-granularity=0 d/a.cpp d/b.c -dumpdir f/ 2>&1 | FileCheck %s --check-prefix=COMPILE2
-// COMPILE2: -cc1{{.*}} "-ftime-trace=f/a.json" "-ftime-trace-granularity=0"
-// COMPILE2: -cc1{{.*}} "-ftime-trace=f/b.json" "-ftime-trace-granularity=0"
+// RUN: %clang -### -c -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose d/a.cpp d/b.c -dumpdir f/ 2>&1 | FileCheck %s --check-prefix=COMPILE2
+// COMPILE2: -cc1{{.*}} "-ftime-trace=f/a.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
+// COMPILE2: -cc1{{.*}} "-ftime-trace=f/b.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
/// -o specifies the link output. Create ${output}-${basename}.json.
-// RUN: %clang -### -ftime-trace -ftime-trace-granularity=0 d/a.cpp d/b.c -o e/x 2>&1 | FileCheck %s --check-prefix=LINK1
-// LINK1: -cc1{{.*}} "-ftime-trace=e/x-a.json" "-ftime-trace-granularity=0"
-// LINK1: -cc1{{.*}} "-ftime-trace=e/x-b.json" "-ftime-trace-granularity=0"
+// RUN: %clang -### -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose d/a.cpp d/b.c -o e/x 2>&1 | FileCheck %s --check-prefix=LINK1
+// LINK1: -cc1{{.*}} "-ftime-trace=e/x-a.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
+// LINK1: -cc1{{.*}} "-ftime-trace=e/x-b.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
/// -dumpdir is f/g, not ending with a path separator. We create f/g${basename}.json.
-// RUN: %clang -### -ftime-trace -ftime-trace-granularity=0 d/a.cpp d/b.c -o e/x -dumpdir f/g 2>&1 | FileCheck %s --check-prefix=LINK2
-// LINK2: -cc1{{.*}} "-ftime-trace=f/ga.json" "-ftime-trace-granularity=0"
-// LINK2: -cc1{{.*}} "-ftime-trace=f/gb.json" "-ftime-trace-granularity=0"
+// RUN: %clang -### -ftime-trace -ftime-trace-granularity=0 -ftime-trace-verbose d/a.cpp d/b.c -o e/x -dumpdir f/g 2>&1 | FileCheck %s --check-prefix=LINK2
+// LINK2: -cc1{{.*}} "-ftime-trace=f/ga.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
+// LINK2: -cc1{{.*}} "-ftime-trace=f/gb.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
-// RUN: %clang -### -ftime-trace=e -ftime-trace-granularity=0 d/a.cpp d/b.c -o f/x -dumpdir f/ 2>&1 | FileCheck %s --check-prefix=LINK3
-// LINK3: -cc1{{.*}} "-ftime-trace=e{{/|\\\\}}a-{{[^.]*}}.json" "-ftime-trace-granularity=0"
-// LINK3: -cc1{{.*}} "-ftime-trace=e{{/|\\\\}}b-{{[^.]*}}.json" "-ftime-trace-granularity=0"
+// RUN: %clang -### -ftime-trace=e -ftime-trace-granularity=0 -ftime-trace-verbose d/a.cpp d/b.c -o f/x -dumpdir f/ 2>&1 | FileCheck %s --check-prefix=LINK3
+// LINK3: -cc1{{.*}} "-ftime-trace=e{{/|\\\\}}a-{{[^.]*}}.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
+// LINK3: -cc1{{.*}} "-ftime-trace=e{{/|\\\\}}b-{{[^.]*}}.json" "-ftime-trace-granularity=0" "-ftime-trace-verbose"
-// RUN: %clang -### -ftime-trace -ftime-trace=e -ftime-trace-granularity=1 -xassembler d/a.cpp 2>&1 | \
+// RUN: %clang -### -ftime-trace -ftime-trace=e -ftime-trace-granularity=1 -ftime-trace-verbose -xassembler d/a.cpp 2>&1 | \
// RUN: FileCheck %s --check-prefix=UNUSED
// UNUSED: warning: argument unused during compilation: '-ftime-trace'
// UNUSED-NEXT: warning: argument unused during compilation: '-ftime-trace=e'
// UNUSED-NEXT: warning: argument unused during compilation: '-ftime-trace-granularity=1'
+// UNUSED-NEXT: warning: argument unused during compilation: '-ftime-trace-verbose'
// UNUSED-NOT: warning:
template <typename T>
diff --git a/clang/tools/driver/cc1_main.cpp b/clang/tools/driver/cc1_main.cpp
index c2ccb47a15bc8..f5e5fad36573e 100644
--- a/clang/tools/driver/cc1_main.cpp
+++ b/clang/tools/driver/cc1_main.cpp
@@ -241,7 +241,8 @@ int cc1_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
if (!Clang->getFrontendOpts().TimeTracePath.empty()) {
llvm::timeTraceProfilerInitialize(
- Clang->getFrontendOpts().TimeTraceGranularity, Argv0);
+ Clang->getFrontendOpts().TimeTraceGranularity, Argv0,
+ Clang->getFrontendOpts().TimeTraceVerbose);
}
// --print-supported-cpus takes priority over the actual compilation.
if (Clang->getFrontendOpts().PrintSupportedCPUs)
diff --git a/clang/unittests/Support/TimeProfilerTest.cpp b/clang/unittests/Support/TimeProfilerTest.cpp
index 5f3950ff033f1..049bef60031d0 100644
--- a/clang/unittests/Support/TimeProfilerTest.cpp
+++ b/clang/unittests/Support/TimeProfilerTest.cpp
@@ -10,11 +10,15 @@
#include "clang/Frontend/FrontendActions.h"
#include "clang/Lex/PreprocessorOptions.h"
+#include "llvm/ADT/StringMap.h"
#include "llvm/Support/JSON.h"
+#include "llvm/Support/Path.h"
#include "llvm/Support/TimeProfiler.h"
+#include "llvm/Support/VirtualFileSystem.h"
#include <stack>
#include "gtest/gtest.h"
+#include <tuple>
using namespace clang;
using namespace llvm;
@@ -23,7 +27,8 @@ namespace {
// Should be called before testing.
void setupProfiler() {
- timeTraceProfilerInitialize(/*TimeTraceGranularity=*/0, "test");
+ timeTraceProfilerInitialize(/*TimeTraceGranularity=*/0, "test",
+ /*TimeTraceVerbose=*/true);
}
// Should be called after `compileFromString()`.
@@ -38,14 +43,24 @@ std::string teardownProfiler() {
// Returns true if code compiles successfully.
// We only parse AST here. This is enough for constexpr evaluation.
-bool compileFromString(StringRef Code, StringRef Standard, StringRef FileName) {
+bool compileFromString(StringRef Code, StringRef Standard, StringRef File,
+ llvm::StringMap<std::string> Headers = {}) {
CompilerInstance Compiler;
Compiler.createDiagnostics();
+ llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
+ new llvm::vfs::InMemoryFileSystem());
+ FS->addFile(File, 0, MemoryBuffer::getMemBuffer(Code));
+ for (const auto &Header : Headers) {
+ FS->addFile(Header.getKey(), 0,
+ MemoryBuffer::getMemBuffer(Header.getValue()));
+ }
+ llvm::IntrusiveRefCntPtr<FileManager> Files(
+ new FileManager(FileSystemOptions(), FS));
+ Compiler.setFileManager(Files.get());
+
auto Invocation = std::make_shared<CompilerInvocation>();
- Invocation->getPreprocessorOpts().addRemappedFile(
- FileName, MemoryBuffer::getMemBuffer(Code).release());
- const char *Args[] = {Standard.data(), FileName.data()};
+ std::vector<const char *> Args = {Standard.data(), File.data()};
CompilerInvocation::CreateFromArgs(*Invocation, Args,
Compiler.getDiagnostics());
Compiler.setInvocation(std::move(Invocation));
@@ -60,13 +75,29 @@ bool compileFromString(StringRef Code, StringRef Standard, StringRef FileName) {
return Compiler.ExecuteAction(Action);
}
+std::string GetMetadata(json::Object *Event) {
+ std::string Metadata;
+ llvm::raw_string_ostream OS(Metadata);
+ if (json::Object *Args = Event->getObject("args")) {
+ if (auto Detail = Args->getString("detail"))
+ OS << Detail;
+ if (auto File = Args->getString("file"))
+ OS << ", "
+ << llvm::sys::path::filename(File->str(),
+ llvm::sys::path::Style::posix);
+ if (auto Line = Args->getInteger("line"))
+ OS << ":" << *Line;
+ }
+ return Metadata;
+}
+
// Returns pretty-printed trace graph.
std::string buildTraceGraph(StringRef Json) {
struct EventRecord {
int64_t TimestampBegin;
int64_t TimestampEnd;
- StringRef Name;
- StringRef Detail;
+ std::string Name;
+ std::string Metadata;
};
std::vector<EventRecord> Events;
@@ -81,10 +112,13 @@ std::string buildTraceGraph(StringRef Json) {
int64_t TimestampBegin = TraceEventObj->getInteger("ts").value_or(0);
int64_t TimestampEnd =
TimestampBegin + TraceEventObj->getInteger("dur").value_or(0);
- StringRef Name = TraceEventObj->getString("name").value_or("");
- StringRef Detail = "";
- if (json::Object *Args = TraceEventObj->getObject("args"))
- Detail = Args->getString("detail").value_or("");
+ std::string Name = TraceEventObj->getString("name").value_or("").str();
+ std::string Metadata = GetMetadata(TraceEventObj);
+
+ // Source events are asynchronous events and may not perfectly nest the
+ // synchronous events. Skip testing them.
+ if (Name == "Source")
+ continue;
// This is a "summary" event, like "Total PerformPendingInstantiations",
// skip it
@@ -92,7 +126,7 @@ std::string buildTraceGraph(StringRef Json) {
continue;
Events.emplace_back(
- EventRecord{TimestampBegin, TimestampEnd, Name, Detail});
+ EventRecord{TimestampBegin, TimestampEnd, Name, Metadata});
}
// There can be nested events that are very fast, for example:
@@ -132,9 +166,9 @@ std::string buildTraceGraph(StringRef Json) {
Stream << "| ";
}
Stream.write(Event.Name.data(), Event.Name.size());
- if (!Event.Detail.empty()) {
+ if (!Event.Metadata.empty()) {
Stream << " (";
- Stream.write(Event.Detail.data(), Event.Detail.size());
+ Stream.write(Event.Metadata.data(), Event.Metadata.size());
Stream << ")";
}
Stream << "\n";
@@ -145,7 +179,7 @@ std::string buildTraceGraph(StringRef Json) {
} // namespace
TEST(TimeProfilerTest, ConstantEvaluationCxx20) {
- constexpr StringRef Code = R"(
+ std::string Code = R"(
void print(double value);
namespace slow_namespace {
@@ -175,8 +209,7 @@ constexpr int slow_init_list[] = {1, 1, 2, 3, 5, 8, 13, 21}; // 25th line
setupProfiler();
ASSERT_TRUE(compileFromString(Code, "-std=c++20", "test.cc"));
std::string Json = teardownProfiler();
- std::string TraceGraph = buildTraceGraph(Json);
- ASSERT_TRUE(TraceGraph == R"(
+ ASSERT_EQ(R"(
Frontend
| ParseDeclarationOrFunctionDefinition (test.cc:2:1)
| ParseDeclarationOrFunctionDefinition (test.cc:6:1)
@@ -202,14 +235,54 @@ Frontend
| ParseDeclarationOrFunctionDefinition (test.cc:25:1)
| | EvaluateAsInitializer (slow_init_list)
| PerformPendingInstantiations
-)");
+)",
+ buildTraceGraph(Json));
+}
+
+TEST(TimeProfilerTest, TemplateInstantiations) {
+ std::string B_H = R"(
+ template <typename T>
+ T fooB(T t) {
+ return T();
+ }
- // NOTE: If this test is failing, run this test with
- // `llvm::errs() << TraceGraph;` and change the assert above.
+ #define MacroTemp(x) template <typename T> void foo##x(T) { T(); }
+ )";
+
+ std::string A_H = R"(
+ #include "b.h"
+
+ MacroTemp(MTA)
+
+ template <typename T>
+ void fooA(T t) { fooB(t); fooMTA(t); }
+ )";
+ std::string Code = R"(
+ #include "a.h"
+ void user() { fooA(0); }
+ )";
+
+ setupProfiler();
+ ASSERT_TRUE(compileFromString(Code, "-std=c++20", "test.cc",
+ /*Headers=*/{{"a.h", A_H}, {"b.h", B_H}}));
+ std::string Json = teardownProfiler();
+ ASSERT_EQ(R"(
+Frontend
+| ParseFunctionDefinition (fooB)
+| ParseFunctionDefinition (fooMTA)
+| ParseFunctionDefinition (fooA)
+| ParseDeclarationOrFunctionDefinition (test.cc:3:5)
+| | ParseFunctionDefinition (user)
+| PerformPendingInstantiations
+| | InstantiateFunction (fooA<int>, a.h:7)
+| | | InstantiateFunction (fooB<int>, b.h:3)
+| | | InstantiateFunction (fooMTA<int>, a.h:4)
+)",
+ buildTraceGraph(Json));
}
TEST(TimeProfilerTest, ConstantEvaluationC99) {
- constexpr StringRef Code = R"(
+ std::string Code = R"(
struct {
short quantval[4]; // 3rd line
} value;
@@ -218,15 +291,12 @@ struct {
setupProfiler();
ASSERT_TRUE(compileFromString(Code, "-std=c99", "test.c"));
std::string Json = teardownProfiler();
- std::string TraceGraph = buildTraceGraph(Json);
- ASSERT_...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/99545
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