Description
| Bugzilla Link | 9262 |
| Resolution | FIXED |
| Resolved on | Feb 26, 2011 02:27 |
| Version | trunk |
| OS | Linux |
| CC | @rjmccall |
Extended Description
arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c triggers an assert in Clang's preprocessor it seems.
Testcase:
struct mem_section {
};
extern struct mem_section *mem_section[((((1UL << (46 - 27))) + ((((1UL) << 12) / sizeof (struct mem_section))) - 1) / ((((1UL) << 12) / sizeof (struct mem_section))))];
clang: /home/edwin/HDD/edwin/llvm-git/offi/llvm/tools/clang/lib/AST/ExprConstant.cpp:2654: llvm::APSInt clang::Expr::EvaluateAsInt(const clang::ASTContext&) const: Assertion `Result && "Could not evaluate expression"' failed.
0 clang 0x00000000015056ef
1 clang 0x0000000001507952
2 libpthread.so.0 0x0000003f36a0ef60
3 libc.so.6 0x0000003f35e32165 gsignal + 53
4 libc.so.6 0x0000003f35e34f70 abort + 384
5 libc.so.6 0x0000003f35e2b2b1 __assert_fail + 241
6 clang 0x0000000000ce9d82
7 clang 0x0000000000cea6a4
8 clang 0x0000000000cea224
9 clang 0x0000000000cea9ac clang::Expr::isIntegerConstantExpr(llvm::APSInt&, clang::ASTContext&, clang::SourceLocation*, bool) const + 44
10 clang 0x0000000000ae17f1 clang::Sema::BuildArrayType(clang::QualType, clang::ArrayType::ArraySizeModifier, clang::Expr*, unsigned int, clang::SourceRange, clang::DeclarationName) + 2401
11 clang 0x0000000000ae5e57 clang::Sema::GetTypeForDeclarator(clang::Declarator&, clang::Scope*, clang::TagDecl**) + 2327
12 clang 0x000000000093c59e clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, clang::ASTMultiPtrclang::TemplateParameterList*, bool) + 302
13 clang 0x000000000088bb72 clang::Parser::ParseDeclarationAfterDeclarator(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&) + 114
14 clang 0x000000000088dae0 clang::Parser::ParseDeclGroup(clang::Parser::ParsingDeclSpec&, unsigned int, bool, clang::SourceLocation*) + 768
15 clang 0x0000000000885ad2 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsingDeclSpec&, clang::AccessSpecifier) + 146
16 clang 0x0000000000885ed9 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::AccessSpecifier) + 409
17 clang 0x0000000000888082 clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::Parser::ParsingDeclSpec*) + 1506
18 clang 0x00000000008881bd clang::Parser::ParseTopLevelDecl(clang::OpaquePtrclang::DeclGroupRef&) + 109
19 clang 0x000000000086eafb clang::ParseAST(clang::Sema&, bool) + 139
20 clang 0x000000000074c004 clang::CodeGenAction::ExecuteAction() + 68
21 clang 0x00000000006309bb clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 347
22 clang 0x000000000060b7fc clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1276
23 clang 0x00000000006031cf cc1_main(char const**, char const**, char const*, void*) + 415
24 clang 0x000000000060a805 main + 4629
25 libc.so.6 0x0000003f35e1ec4d __libc_start_main + 253
26 clang 0x00000000006018a9
Stack dump:
0. Program arguments: /home/edwin/HDD/edwin/llvm-git/offi/obj/Release+Asserts/bin/clang -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name 14589.c -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-linker-version 2.20.1 -momit-leaf-frame-pointer -resource-dir /home/edwin/HDD/edwin/llvm-git/offi/obj/Release+Asserts/bin/../lib/clang/2.9 -ferror-limit 19 -fmessage-length 147 -fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/cc-WvE2y5.o -x c tmp8/14589.c
-
tmp8/14589.c:3:169: current parser token ';'
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal 1 (use -v to see invocation)