Disable setting default optimization level to 1 #12
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We used to set -O1 for the optimizer if user did not specify anything. Fix for flang-compiler#9
pawosm-arm
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Feb 28, 2018
Summary: The test being added in this patch used to cause an assertion failure: /build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp -- Exit Code: 134 Command Output (stderr): -- clang: /src/tools/clang/lib/AST/ASTDiagnostic.cpp:424: void clang::FormatASTNodeDiagnosticArgument(DiagnosticsEngine::ArgumentKind, intptr_t, llvm::StringRef, llvm::StringRef, ArrayRef<DiagnosticsEngine::ArgumentValue>, SmallVectorImpl<char> &, void *, ArrayRef<intptr_t>): Assertion `isa<NamedDecl>(DC) && "Expected a NamedDecl"' failed. #0 0x0000000001c7a1b4 PrintStackTraceSignalHandler(void*) (/build/./bin/clang+0x1c7a1b4) flang-compiler#1 0x0000000001c7a4e6 SignalHandler(int) (/build/./bin/clang+0x1c7a4e6) flang-compiler#2 0x00007f30880078d0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0xf8d0) flang-compiler#3 0x00007f3087054067 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35067) flang-compiler#4 0x00007f3087055448 abort (/lib/x86_64-linux-gnu/libc.so.6+0x36448) flang-compiler#5 0x00007f308704d266 (/lib/x86_64-linux-gnu/libc.so.6+0x2e266) flang-compiler#6 0x00007f308704d312 (/lib/x86_64-linux-gnu/libc.so.6+0x2e312) flang-compiler#7 0x00000000035b7f22 clang::FormatASTNodeDiagnosticArgument(clang::DiagnosticsEngine::ArgumentKind, long, llvm::StringRef, llvm::StringRef, llvm::ArrayRef<std::pair<clang::DiagnosticsEngine::ArgumentKind, long> >, llvm::SmallVectorImpl<char>&, void*, llvm::ArrayRef<long>) (/build/ ./bin/clang+0x35b7f22) flang-compiler#8 0x0000000001ddbae4 clang::Diagnostic::FormatDiagnostic(char const*, char const*, llvm::SmallVectorImpl<char>&) const (/build/./bin/clang+0x1ddbae4) flang-compiler#9 0x0000000001ddb323 clang::Diagnostic::FormatDiagnostic(char const*, char const*, llvm::SmallVectorImpl<char>&) const (/build/./bin/clang+0x1ddb323) flang-compiler#10 0x00000000022878a4 clang::TextDiagnosticBuffer::HandleDiagnostic(clang::DiagnosticsEngine::Level, clang::Diagnostic const&) (/build/./bin/clang+0x22878a4) flang-compiler#11 0x0000000001ddf387 clang::DiagnosticIDs::ProcessDiag(clang::DiagnosticsEngine&) const (/build/./bin/clang+0x1ddf387) flang-compiler#12 0x0000000001dd9dea clang::DiagnosticsEngine::EmitCurrentDiagnostic(bool) (/build/./bin/clang+0x1dd9dea) flang-compiler#13 0x0000000002cad00c clang::Sema::EmitCurrentDiagnostic(unsigned int) (/build/./bin/clang+0x2cad00c) flang-compiler#14 0x0000000002d91cd2 clang::Sema::CheckShadow(clang::NamedDecl*, clang::NamedDecl*, clang::LookupResult const&) (/build/./bin/clang+0x2d91cd2) Stack dump: 0. Program arguments: /build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp 1. /src/tools/clang/test/SemaCXX/warn-shadow.cpp:214:23: current parser token ';' 2. /src/tools/clang/test/SemaCXX/warn-shadow.cpp:213:26: parsing function body 'handleLinkageSpec' 3. /src/tools/clang/test/SemaCXX/warn-shadow.cpp:213:26: in compound statement ('{}') /build/tools/clang/test/SemaCXX/Output/warn-shadow.cpp.script: line 1: 15595 Aborted (core dumped) /build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp Reviewers: rsmith Reviewed By: rsmith Subscribers: krytarowski, cfe-commits Differential Revision: https://reviews.llvm.org/D33207 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303325 91177308-0d34-0410-b5e6-96231b3b80d8
pawosm-arm
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Feb 28, 2018
The code in the test caused a crash with this backtrace: RecordLayoutBuilder.cpp:2934: const clang::ASTRecordLayout &clang::ASTContext::getASTRecordLayout(const clang::RecordDecl *) const: Assertion `!D->isInvalidDecl() && "Cannot get layout of invalid decl!"' failed. [...] flang-compiler#7 0x00007f63963d845a __assert_fail_base (/usr/lib/libc.so.6+0x2c45a) flang-compiler#8 0x00007f63963d84d2 (/usr/lib/libc.so.6+0x2c4d2) flang-compiler#9 0x00007f63937a0631 clang::ASTContext::getASTRecordLayout(clang::RecordDecl const*) const /home/olivier/prog/llvm/tools/clang/lib/AST/RecordLayoutBuilder.cpp:2935:3 flang-compiler#10 0x00007f63937a1ad5 getFieldOffset(clang::ASTContext const&, clang::FieldDecl const*) /home/olivier/prog/llvm/tools/clang/lib/AST/RecordLayoutBuilder.cpp:3057:37 flang-compiler#11 0x00007f6391869f14 clang::Sema::RefersToMemberWithReducedAlignment(clang::Expr*, llvm::function_ref<void (clang::Expr*, clang::RecordDecl*, clang::FieldDecl*, clang::CharUnits)>) /home/olivier/prog/llvm/tools/clang/lib/Sema/SemaChecking.cpp:12139:23 flang-compiler#12 0x00007f639186a2f8 clang::Sema::CheckAddressOfPackedMember(clang::Expr*) /home/olivier/prog/llvm/tools/clang/lib/Sema/SemaChecking.cpp:12190:1 flang-compiler#13 0x00007f6391a7a81c clang::Sema::CheckAddressOfOperand(clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation) /home/olivier/prog/llvm/tools/clang/lib/Sema/SemaExpr.cpp:11111:10 flang-compiler#14 0x00007f6391a7f5d2 clang::Sema::CreateBuiltinUnaryOp(clang::SourceLocation, clang::UnaryOperatorKind, clang::Expr*) /home/olivier/prog/llvm/tools/clang/lib/Sema/SemaExpr.cpp:11932:18 Fixing by bailing out for invalid classes. Differential Revision: https://reviews.llvm.org/D35108 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@307371 91177308-0d34-0410-b5e6-96231b3b80d8
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We used to set -O1 for the optimizer if user did not specify anything.
Fix for #9