I think that debug info is slowing a self-hosting build down. This build has
been going for ages now and shows no sign of quitting. To reproduce, build a
Release+Asserts build of clang. Then use that to build a Debug+Asserts version.
Include all of the bells and whistles, like the clang-extras and compiler-rt
libraries.
The reason I suspect debug info is because of this stack trace:
[morbo:llvm] lldb -p 92084
Attaching to process with:
process attach -p 92084
Process 92084 stopped
Executable module set to
"/Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang".
Architecture set to: x86_64-apple-macosx.
(lldb) bt
* thread #1: tid = 0xbebaf, 0x000000010c5f6dc1
clang`llvm::SmallPtrSetImpl::insert_imp(void const*) + 161, queue =
'com.apple.main-thread, stop reason = signal SIGSTOP
frame #0: 0x000000010c5f6dc1 clang`llvm::SmallPtrSetImpl::insert_imp(void
const*) + 161
frame #1: 0x000000010c5147df
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 47
frame #2: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #3: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #4: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #5: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #6: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #7: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #8: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #9: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #10: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #11: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #12: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #13: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #14: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #15: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #16: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #17: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #18: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #19: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #20: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #21: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #22: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #23: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #24: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #25: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #26: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #27: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #28: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #29: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #30: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #31: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #32: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #33: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #34: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #35: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #36: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #37: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #38: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #39: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #40: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #41: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #42: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #43: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #44: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #45: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #46: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #47: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #48: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #49: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #50: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #51: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #52: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #53: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #54: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #55: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #56: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #57: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #58: 0x000000010c5145f3
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547
frame #59: 0x000000010c514695
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709
frame #60: 0x000000010c5148c4
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276
frame #61: 0x000000010c514701
clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817
frame #62: 0x000000010c5140e2
clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 50
frame #63: 0x000000010c514895
clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 229
frame #64: 0x000000010c5141e2
clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 306
frame #65: 0x000000010c514cdb
clang`llvm::DebugInfoFinder::processLocation(llvm::Module const&,
llvm::DILocation) + 91
frame #66: 0x000000010c5af3d6 clang`(anonymous
namespace)::Verifier::visitInstruction(llvm::Instruction&) + 2278
frame #67: 0x000000010c5b0bc1 clang`(anonymous
namespace)::Verifier::VerifyCallSite(llvm::CallSite) + 1489
frame #68: 0x000000010c5af949 clang`(anonymous
namespace)::Verifier::visitCallInst(llvm::CallInst&) + 73
frame #69: 0x000000010c5adbea clang`llvm::InstVisitor<(anonymous
namespace)::Verifier, void>::visit(llvm::Instruction&) + 10058
frame #70: 0x000000010c5aa56b clang`(anonymous
namespace)::Verifier::runOnFunction(llvm::Function&) + 1611
frame #71: 0x000000010c58963b
clang`llvm::FPPassManager::runOnFunction(llvm::Function&) + 347
frame #72: 0x000000010c588e4b
clang`llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) + 235
frame #73: 0x000000010c588d26
clang`llvm::legacy::FunctionPassManager::run(llvm::Function&) + 86
frame #74: 0x000000010ad490f4
clang`clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&,
clang::LangOptions const&, llvm::Module*, clang::BackendAction,
llvm::raw_ostream*) + 5492
frame #75: 0x000000010ae47b45
clang`clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) +
453
frame #76: 0x000000010ae99764 clang`clang::ParseAST(clang::Sema&, bool,
bool) + 516
frame #77: 0x000000010ae469da clang`clang::CodeGenAction::ExecuteAction() +
122
frame #78: 0x000000010abf3e66 clang`clang::FrontendAction::Execute() + 134
frame #79: 0x000000010abcf70d
clang`clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 973
frame #80: 0x000000010ab97a44
clang`clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4276
frame #81: 0x000000010ab8f843 clang`cc1_main(char const**, char const**,
char const*, void*) + 835
frame #82: 0x000000010ab93d52 clang`main + 1138
frame #83: 0x00007fff910165fd libdyld.dylib`start + 1
frame #84: 0x00007fff910165fd libdyld.dylib`start + 1
(lldb)
This is the command:
morbo 92084 100.0 2.3 2888888 380520 s002 R+ 5:47PM 1:10.64
/Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang -cc1 -triple
x86_64-apple-macosx10.9.0 -emit-obj -mrelax-all -disable-free -main-file-name
LLVMTidyModule.cpp -mrelocation-model pic -pic-level 2 -mdisable-fp-elim
-relaxed-aliasing -masm-verbose -munwind-tables -target-cpu core2
-target-linker-version 136 -gdwarf-2 -coverage-file
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o
-resource-dir
/Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/../lib/clang/3.4
-dependency-file
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d.tmp
-MP -MT
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o
-MT
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d
-D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D
__STDC_LIMIT_MACROS -I /Users/morbo/llvm/llvm.obj/include -I
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -I
/Users/morbo/llvm/llvm.src/include -I
/Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm -I
/Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/../../../../include
-I
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/../../../../include
-I /Users/morbo/llvm/llvm-clean.install/lib/c++/v1 -stdlib=libc++
-Woverloaded-virtual -Wcast-qual -Wno-long-long -Wall -W -Wno-unused-parameter
-Wwrite-strings -Wcovered-switch-default -Wno-uninitialized
-Wno-missing-field-initializers -pedantic -fdeprecated-macro
-fdebug-compilation-dir
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -ferror-limit
19 -fmessage-length 191 -fvisibility-inlines-hidden -stack-protector 1
-mstackrealign -fblocks -fno-rtti -fobjc-runtime=macosx-10.9.0
-fencode-extended-block-signature -fno-common -fdiagnostics-show-option
-fcolor-diagnostics -vectorize-slp -o
/Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o
-x c++
/Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/LLVMTidyModule.cpp
-bw
Hi Bill Is this a recent regression? I recently changed the debug info verifier to fix a bug. Thanks, Manman> On Nov 17, 2013, at 5:52 PM, Bill Wendling <isanbard at gmail.com> wrote: > > I think that debug info is slowing a self-hosting build down. This build has been going for ages now and shows no sign of quitting. To reproduce, build a Release+Asserts build of clang. Then use that to build a Debug+Asserts version. Include all of the bells and whistles, like the clang-extras and compiler-rt libraries. > > The reason I suspect debug info is because of this stack trace: > > [morbo:llvm] lldb -p 92084 > Attaching to process with: > process attach -p 92084 > Process 92084 stopped > Executable module set to "/Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang". > Architecture set to: x86_64-apple-macosx. > (lldb) bt > * thread #1: tid = 0xbebaf, 0x000000010c5f6dc1 clang`llvm::SmallPtrSetImpl::insert_imp(void const*) + 161, queue = 'com.apple.main-thread, stop reason = signal SIGSTOP > frame #0: 0x000000010c5f6dc1 clang`llvm::SmallPtrSetImpl::insert_imp(void const*) + 161 > frame #1: 0x000000010c5147df clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 47 > frame #2: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #3: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #4: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #5: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #6: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #7: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #8: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #9: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #10: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #11: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #12: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #13: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #14: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #15: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #16: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #17: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #18: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #19: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #20: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #21: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #22: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #23: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #24: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #25: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #26: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #27: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #28: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #29: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #30: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #31: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #32: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #33: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #34: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #35: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #36: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #37: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #38: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #39: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #40: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #41: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #42: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #43: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #44: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #45: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #46: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #47: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #48: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #49: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #50: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #51: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #52: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #53: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #54: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #55: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #56: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #57: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #58: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 > frame #59: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 > frame #60: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 > frame #61: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 > frame #62: 0x000000010c5140e2 clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 50 > frame #63: 0x000000010c514895 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 229 > frame #64: 0x000000010c5141e2 clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 306 > frame #65: 0x000000010c514cdb clang`llvm::DebugInfoFinder::processLocation(llvm::Module const&, llvm::DILocation) + 91 > frame #66: 0x000000010c5af3d6 clang`(anonymous namespace)::Verifier::visitInstruction(llvm::Instruction&) + 2278 > frame #67: 0x000000010c5b0bc1 clang`(anonymous namespace)::Verifier::VerifyCallSite(llvm::CallSite) + 1489 > frame #68: 0x000000010c5af949 clang`(anonymous namespace)::Verifier::visitCallInst(llvm::CallInst&) + 73 > frame #69: 0x000000010c5adbea clang`llvm::InstVisitor<(anonymous namespace)::Verifier, void>::visit(llvm::Instruction&) + 10058 > frame #70: 0x000000010c5aa56b clang`(anonymous namespace)::Verifier::runOnFunction(llvm::Function&) + 1611 > frame #71: 0x000000010c58963b clang`llvm::FPPassManager::runOnFunction(llvm::Function&) + 347 > frame #72: 0x000000010c588e4b clang`llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) + 235 > frame #73: 0x000000010c588d26 clang`llvm::legacy::FunctionPassManager::run(llvm::Function&) + 86 > frame #74: 0x000000010ad490f4 clang`clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) + 5492 > frame #75: 0x000000010ae47b45 clang`clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 453 > frame #76: 0x000000010ae99764 clang`clang::ParseAST(clang::Sema&, bool, bool) + 516 > frame #77: 0x000000010ae469da clang`clang::CodeGenAction::ExecuteAction() + 122 > frame #78: 0x000000010abf3e66 clang`clang::FrontendAction::Execute() + 134 > frame #79: 0x000000010abcf70d clang`clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 973 > frame #80: 0x000000010ab97a44 clang`clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4276 > frame #81: 0x000000010ab8f843 clang`cc1_main(char const**, char const**, char const*, void*) + 835 > frame #82: 0x000000010ab93d52 clang`main + 1138 > frame #83: 0x00007fff910165fd libdyld.dylib`start + 1 > frame #84: 0x00007fff910165fd libdyld.dylib`start + 1 > (lldb) > > This is the command: > > morbo 92084 100.0 2.3 2888888 380520 s002 R+ 5:47PM 1:10.64 /Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang -cc1 -triple x86_64-apple-macosx10.9.0 -emit-obj -mrelax-all -disable-free -main-file-name LLVMTidyModule.cpp -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -relaxed-aliasing -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 136 -gdwarf-2 -coverage-file /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -resource-dir /Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/../lib/clang/3.4 -dependency-file /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d.tmp -MP -MT /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -MT /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STD!C_!> FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /Users/morbo/llvm/llvm.obj/include -I /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -I /Users/morbo/llvm/llvm.src/include -I /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm -I /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/../../../../include -I /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/../../../../include -I /Users/morbo/llvm/llvm-clean.install/lib/c++/v1 -stdlib=libc++ -Woverloaded-virtual -Wcast-qual -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -pedantic -fdeprecated-macro -fdebug-compilation-dir /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -ferror-limit 19 -fmessage-length 191 -fvisibility-inlines-hidden -stack-protector 1 -mstackrealign -fblocks -fno-rtti -fobjc-runtime=macosx-10.9.0 -fencode-extended-block-signature -fno-common -fd!i!> agnostics-show-option -fcolor-diagnostics -vectorize-slp -o /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -x c++ /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/LLVMTidyModule.cpp > > > -bw > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
I think it might be. I’m attaching a preprocessed file that can show the problem. Compile it with ToT. $ clang++ -g -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -m64 -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -c LLVMTidyModule.ii -bw -------------- next part -------------- A non-text attachment was scrubbed... Name: LLVMTidyModule.ii Type: application/octet-stream Size: 3330650 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131117/0d6a0092/attachment.obj> -------------- next part -------------- On Nov 17, 2013, at 6:01 PM, Manman Ren <mren at apple.com> wrote:> Hi Bill > > Is this a recent regression? I recently changed the debug info verifier to fix a bug. > > Thanks, > Manman > >> On Nov 17, 2013, at 5:52 PM, Bill Wendling <isanbard at gmail.com> wrote: >> >> I think that debug info is slowing a self-hosting build down. This build has been going for ages now and shows no sign of quitting. To reproduce, build a Release+Asserts build of clang. Then use that to build a Debug+Asserts version. Include all of the bells and whistles, like the clang-extras and compiler-rt libraries. >> >> The reason I suspect debug info is because of this stack trace: >> >> [morbo:llvm] lldb -p 92084 >> Attaching to process with: >> process attach -p 92084 >> Process 92084 stopped >> Executable module set to "/Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang". >> Architecture set to: x86_64-apple-macosx. >> (lldb) bt >> * thread #1: tid = 0xbebaf, 0x000000010c5f6dc1 clang`llvm::SmallPtrSetImpl::insert_imp(void const*) + 161, queue = 'com.apple.main-thread, stop reason = signal SIGSTOP >> frame #0: 0x000000010c5f6dc1 clang`llvm::SmallPtrSetImpl::insert_imp(void const*) + 161 >> frame #1: 0x000000010c5147df clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 47 >> frame #2: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #3: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #4: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #5: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #6: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #7: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #8: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #9: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #10: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #11: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #12: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #13: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #14: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #15: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #16: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #17: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #18: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #19: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #20: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #21: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #22: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #23: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #24: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #25: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #26: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #27: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #28: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #29: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #30: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #31: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #32: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #33: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #34: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #35: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #36: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #37: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #38: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #39: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #40: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #41: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #42: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #43: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #44: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #45: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #46: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #47: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #48: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #49: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #50: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #51: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #52: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #53: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #54: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #55: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #56: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #57: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #58: 0x000000010c5145f3 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 547 >> frame #59: 0x000000010c514695 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 709 >> frame #60: 0x000000010c5148c4 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 276 >> frame #61: 0x000000010c514701 clang`llvm::DebugInfoFinder::processType(llvm::DIType) + 817 >> frame #62: 0x000000010c5140e2 clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 50 >> frame #63: 0x000000010c514895 clang`llvm::DebugInfoFinder::processSubprogram(llvm::DISubprogram) + 229 >> frame #64: 0x000000010c5141e2 clang`llvm::DebugInfoFinder::processScope(llvm::DIScope) + 306 >> frame #65: 0x000000010c514cdb clang`llvm::DebugInfoFinder::processLocation(llvm::Module const&, llvm::DILocation) + 91 >> frame #66: 0x000000010c5af3d6 clang`(anonymous namespace)::Verifier::visitInstruction(llvm::Instruction&) + 2278 >> frame #67: 0x000000010c5b0bc1 clang`(anonymous namespace)::Verifier::VerifyCallSite(llvm::CallSite) + 1489 >> frame #68: 0x000000010c5af949 clang`(anonymous namespace)::Verifier::visitCallInst(llvm::CallInst&) + 73 >> frame #69: 0x000000010c5adbea clang`llvm::InstVisitor<(anonymous namespace)::Verifier, void>::visit(llvm::Instruction&) + 10058 >> frame #70: 0x000000010c5aa56b clang`(anonymous namespace)::Verifier::runOnFunction(llvm::Function&) + 1611 >> frame #71: 0x000000010c58963b clang`llvm::FPPassManager::runOnFunction(llvm::Function&) + 347 >> frame #72: 0x000000010c588e4b clang`llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) + 235 >> frame #73: 0x000000010c588d26 clang`llvm::legacy::FunctionPassManager::run(llvm::Function&) + 86 >> frame #74: 0x000000010ad490f4 clang`clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) + 5492 >> frame #75: 0x000000010ae47b45 clang`clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 453 >> frame #76: 0x000000010ae99764 clang`clang::ParseAST(clang::Sema&, bool, bool) + 516 >> frame #77: 0x000000010ae469da clang`clang::CodeGenAction::ExecuteAction() + 122 >> frame #78: 0x000000010abf3e66 clang`clang::FrontendAction::Execute() + 134 >> frame #79: 0x000000010abcf70d clang`clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 973 >> frame #80: 0x000000010ab97a44 clang`clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4276 >> frame #81: 0x000000010ab8f843 clang`cc1_main(char const**, char const**, char const*, void*) + 835 >> frame #82: 0x000000010ab93d52 clang`main + 1138 >> frame #83: 0x00007fff910165fd libdyld.dylib`start + 1 >> frame #84: 0x00007fff910165fd libdyld.dylib`start + 1 >> (lldb) >> >> This is the command: >> >> morbo 92084 100.0 2.3 2888888 380520 s002 R+ 5:47PM 1:10.64 /Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/clang -cc1 -triple x86_64-apple-macosx10.9.0 -emit-obj -mrelax-all -disable-free -main-file-name LLVMTidyModule.cpp -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -relaxed-aliasing -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 136 -gdwarf-2 -coverage-file /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -resource-dir /Users/morbo/llvm/llvm-clean.obj/Release+Asserts/bin/../lib/clang/3.4 -dependency-file /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d.tmp -MP -MT /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -MT /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.d -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_! >> FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /Users/morbo/llvm/llvm.obj/include -I /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -I /Users/morbo/llvm/llvm.src/include -I /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm -I /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/../../../../include -I /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/../../../../include -I /Users/morbo/llvm/llvm-clean.install/lib/c++/v1 -stdlib=libc++ -Woverloaded-virtual -Wcast-qual -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -pedantic -fdeprecated-macro -fdebug-compilation-dir /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm -ferror-limit 19 -fmessage-length 191 -fvisibility-inlines-hidden -stack-protector 1 -mstackrealign -fblocks -fno-rtti -fobjc-runtime=macosx-10.9.0 -fencode-extended-block-signature -fno-common -fdi! >> agnostics-show-option -fcolor-diagnostics -vectorize-slp -o /Users/morbo/llvm/llvm.obj/tools/clang/tools/extra/clang-tidy/llvm/Debug+Asserts/LLVMTidyModule.o -x c++ /Users/morbo/llvm/llvm.src/tools/clang/tools/extra/clang-tidy/llvm/LLVMTidyModule.cpp >> >> >> -bw >> >> >> _______________________________________________ >> LLVM Developers mailing list >> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev