[cfe-commits] r143204 - in /cfe/trunk: include/clang/AST/ASTContext.h include/clang/AST/Expr.h lib/AST/ExprConstant.cpp test/CodeGenCXX/static-data-member.cpp test/SemaCXX/constant-expression-cxx11.cpp

[Chad Rosier]

Hi Richard,
This is blocking some number gathering for the upcoming LLVM Developers Meeting.  Do you have an ETA on this fix?  If not soon (~1 hour), would you mind reverting this and any other associated patches?

 Regards,
  Chad

On Oct 31, 2011, at 10:36 AM, Chad Rosier wrote:

> Hey Richard,
> I have another one for you.   I'm seeing the following assert:
> 
> Assertion failed: ((E->isGLValue() || E->getType()->isFunctionType() || E->getType()->isVoidType() || isa<CXXTemporaryObjectExpr>(E)) && "can't evaluate expression as an lvalue"), function EvaluateLValue, file /Users/mcrosier/llvm-clean/llvm/tools/clang/lib/AST/ExprConstant.cpp, 
> line 913.
> 0  clang             0x000000010a8fe222 _ZL15PrintStackTracePv + 34
> 1  clang             0x000000010a8fe749 _ZL13SignalHandleri + 697
> 2  libsystem_c.dylib 0x00007fff8d815cfa _sigtramp + 26
> 3  libsystem_c.dylib 0x00007fff0000a63d _sigtramp + 18446744071335528797
> 4  clang             0x000000010a8fe476 abort + 22
> 5  clang             0x000000010a8fe435 __assert_rtn + 53
> 6  clang             0x0000000109e331b4 _ZL14EvaluateLValuePKN5clang4ExprERN12_GLOBAL__N_16LValueERNS3_8EvalInfoE + 132
> 7  clang             0x0000000109e37028 (anonymous namespace)::PointerExprEvaluator::VisitCastExpr(clang::CastExpr const*) + 968
> 8  clang             0x0000000109e363c5 clang::StmtVisitorBase<clang::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) + 1013
> 9  clang             0x0000000109e3505c clang::StmtVisitorBase<clang::make_const_ptr, (anonymous namespace)::LValueExprEvaluator, bool>::Visit(clang::Stmt const*) + 1180
> 10 clang             0x0000000109e331ef _ZL14EvaluateLValuePKN5clang4ExprERN12_GLOBAL__N_16LValueERNS3_8EvalInfoE + 191
> 11 clang             0x0000000109e32400 _ZL8EvaluateRN12_GLOBAL__N_17CCValueERNS_8EvalInfoEPKN5clang4ExprE + 128
> 12 clang             0x0000000109e321eb clang::Expr::EvaluateAsRValue(clang::Expr::EvalResult&, clang::ASTContext const&) const + 107
> 13 clang             0x000000010990010f (anonymous namespace)::GetExprRange(clang::ASTContext&, clang::Expr*, unsigned int) + 79
> 14 clang             0x00000001098fe93e (anonymous namespace)::CheckImplicitConversion(clang::Sema&, clang::Expr*, clang::QualType, clang::SourceLocation, bool*) + 3758
> 15 clang             0x00000001098fa78a (anonymous namespace)::AnalyzeImplicitConversions(clang::Sema&, clang::Expr*, clang::SourceLocation) + 106
> 16 clang             0x00000001098fadf0 (anonymous namespace)::AnalyzeImplicitConversions(clang::Sema&, clang::Expr*, clang::SourceLocation) + 1744
> 17 clang             0x0000000109a26e06 clang::Sema::ActOnFinishFullExpr(clang::Expr*) + 134
> 18 clang             0x00000001098a75e8 clang::Parser::ParseExprStatement(clang::ParsedAttributes&) + 296
> 19 clang             0x00000001098a6dce clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 2142
> 20 clang             0x00000001098aa2f6 clang::Parser::ParseForStatement(clang::ParsedAttributes&) + 2982
> 21 clang             0x00000001098a6ec6 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 2390
> 22 clang             0x00000001098ac950 clang::Parser::ParseCompoundStatementBody(bool) + 1344
> 23 clang             0x00000001098a69b0 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 1088
> 24 clang             0x00000001098a8915 clang::Parser::ParseIfStatement(clang::ParsedAttributes&) + 533
> 25 clang             0x00000001098a6e84 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 2324
> 26 clang             0x00000001098ac950 clang::Parser::ParseCompoundStatementBody(bool) + 1344
> 27 clang             0x00000001098a69b0 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 1088
> 28 clang             0x00000001098aa2f6 clang::Parser::ParseForStatement(clang::ParsedAttributes&) + 2982
> 29 clang             0x00000001098a6ec6 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 2390
> 30 clang             0x00000001098ac950 clang::Parser::ParseCompoundStatementBody(bool) + 1344
> 31 clang             0x00000001098a69b0 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 1088
> 32 clang             0x00000001098aa2f6 clang::Parser::ParseForStatement(clang::ParsedAttributes&) + 2982
> 33 clang             0x00000001098a6ec6 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 2390
> 34 clang             0x00000001098ac950 clang::Parser::ParseCompoundStatementBody(bool) + 1344
> 35 clang             0x00000001098adfbb clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) + 171
> 36 clang             0x00000001098bb9b1 clang::Parser::ParseFunctionDefinition(clang::Parser::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&) + 2241
> 37 clang             0x000000010986db0c clang::Parser::ParseDeclGroup(clang::Parser::ParsingDeclSpec&, unsigned int, bool, clang::SourceLocation*, clang::Parser::ForRangeInit*) + 1020
> 38 clang             0x00000001098bab6a clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsingDeclSpec&, clang::AccessSpecifier) + 858
> 39 clang             0x00000001098bad69 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::AccessSpecifier) + 393
> 40 clang             0x00000001098b9d1f clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::Parser::ParsingDeclSpec*) + 3295
> 41 clang             0x00000001098b8fc7 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 247
> 42 clang             0x0000000109863abd clang::ParseAST(clang::Sema&, bool) + 317
> 43 clang             0x0000000109832180 clang::CodeGenAction::ExecuteAction() + 1040
> 44 clang             0x000000010963f42b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 955
> 45 clang             0x00000001096296a5 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 2789
> 46 clang             0x0000000109621dd3 cc1_main(char const**, char const**, char const*, void*) + 5267
> 47 clang             0x0000000109625adf main + 687
> 48 clang             0x0000000109620934 start + 52
> 49 clang             0x0000000000000045 start + 18446744069257164613
> 
> Here's a reduced test case:
> <joe.i>
> 
> Reproduce with:
> clang -Os -arch i386 -c joe.i -o /dev/null
> 
> Please take a moment to investigate.
> 
> Regards,
> Chad
> 
> 
> On Oct 28, 2011, at 4:37 PM, Chad Rosier wrote:
> 
>> No problem.  Thanks for fixing promptly.
>> 
>> Chad
>> 
>> On Oct 28, 2011, at 4:30 PM, Richard Smith wrote:
>> 
>>> Hi Chad,
>>> 
>>> Thanks for the excellent testcase! Fixed in r143250.
>> 
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>