Segmentation fault building druntime head on OS X

[John Colvin via Digitalmars-d]

On Monday, 1 December 2014 at 09:48:20 UTC, Paolo Invernizzi 
wrote:
> Hi,
>
> Just to know if someone else has the same issue:
>
>   OS X 10.10.1 Xcode 6.1 (6a1052d)
>   cc --version Apple LLVM version 6.0 (clang-600.0.54) (based 
> on LLVM 3.5svn)
>
> DMD is builded just fine:
>
>   DMD64 D Compiler v2.067-devel-e17631e
>
> But the dmd crash on building druntime:
>
> semantic3 treap
>     semantic3 ti_AC
>     semantic3 ti_Acdouble
>     semantic3 ti_Acfloat
>     Process 5286 stopped
>     * thread #1: tid = 0x5277, 0x000000010002df7d 
> dmd`ComplexExp::ComplexExp(Loc, complex_t, Type*) + 45, queue = 
> 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS 
> (code=EXC_I386_GPFLT)
>         frame #0: 0x000000010002df7d 
> dmd`ComplexExp::ComplexExp(Loc, complex_t, Type*) + 45
>     dmd`ComplexExp::ComplexExp(Loc, complex_t, Type*) + 45:
>     -> 0x10002df7d:  movaps %xmm1, 0x40(%rdi)
>        0x10002df81:  movaps %xmm0, 0x30(%rdi)
>        0x10002df85:  movq   %rcx, 0x20(%rdi)
>        0x10002df89:  popq   %rbp
>     (lldb) bt
>     * thread #1: tid = 0x5277, 0x000000010002df7d 
> dmd`ComplexExp::ComplexExp(Loc, complex_t, Type*) + 45, queue = 
> 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS 
> (code=EXC_I386_GPFLT)
>       * frame #0: 0x000000010002df7d 
> dmd`ComplexExp::ComplexExp(Loc, complex_t, Type*) + 45
>         frame #1: 0x000000010001597f dmd`Cast(Type*, Type*, 
> Expression*) + 879
>         frame #2: 0x00000001000a0074 
> dmd`Expression_optimize(Expression*, int, 
> bool)::OptimizeVisitor::visit(CastExp*) + 964
>         frame #3: 0x000000010009f265 
> dmd`Expression_optimize(Expression*, int, 
> bool)::OptimizeVisitor::visit(BinExp*) + 133
>         frame #4: 0x000000010009ebfa 
> dmd`Expression_optimize(Expression*, int, bool) + 42
>         frame #5: 0x00000001000b822e 
> dmd`ExpStatement::semantic(Scope*) + 94
>         frame #6: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #7: 0x00000001000c02df 
> dmd`IfStatement::semantic(Scope*) + 783
>         frame #8: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #9: 0x00000001000543b1 
> dmd`FuncDeclaration::semantic3(Scope*) + 3425
>         frame #10: 0x0000000100057c46 
> dmd`FuncDeclaration::functionSemantic3() + 102
>         frame #11: 0x000000010002a825 
> dmd`functionParameters(Loc, Scope*, TypeFunction*, Type*, 
> Array<Expression*>*, FuncDeclaration*, Type**, Expression**) + 
> 277
>         frame #12: 0x000000010003f03e 
> dmd`CallExp::semantic(Scope*) + 11822
>         frame #13: 0x000000010003835a 
> dmd`BinExp::binSemanticProp(Scope*) + 42
>         frame #14: 0x000000010009cd6d 
> dmd`op_overload(Expression*, 
> Scope*)::OpOverload::visit(BinAssignExp*) + 1645
>         frame #15: 0x000000010009965c 
> dmd`op_overload(Expression*, Scope*) + 44
>         frame #16: 0x0000000100038bdd 
> dmd`BinAssignExp::semantic(Scope*) + 45
>         frame #17: 0x00000001000b81f3 
> dmd`ExpStatement::semantic(Scope*) + 35
>         frame #18: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #19: 0x00000001000ba2d1 
> dmd`ForStatement::semantic(Scope*) + 657
>         frame #20: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #21: 0x00000001000b9a8e 
> dmd`ScopeStatement::semantic(Scope*) + 158
>         frame #22: 0x00000001000ba130 
> dmd`ForStatement::semantic(Scope*) + 240
>         frame #23: 0x00000001000bdf05 
> dmd`ForeachStatement::semantic(Scope*) + 14741
>         frame #24: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #25: 0x00000001000543b1 
> dmd`FuncDeclaration::semantic3(Scope*) + 3425
>         frame #26: 0x00000001000018b5 
> dmd`AttribDeclaration::semantic3(Scope*) + 85
>         frame #27: 0x00000001000d7d54 
> dmd`TemplateInstance::semantic3(Scope*) + 276
>         frame #28: 0x00000001000d2709 
> dmd`TemplateInstance::semantic(Scope*, Array<Expression*>*) + 
> 2425
>         frame #29: 0x000000010003250a 
> dmd`ScopeExp::semantic(Scope*) + 154
>         frame #30: 0x000000010002713e 
> dmd`DotIdExp::semanticX(Scope*) + 30
>         frame #31: 0x0000000100026da1 dmd`resolveUFCS(Scope*, 
> CallExp*) + 129
>         frame #32: 0x000000010003c3d7 
> dmd`CallExp::semantic(Scope*) + 455
>         frame #33: 0x00000001000c26f5 
> dmd`ReturnStatement::semantic(Scope*) + 677
>         frame #34: 0x00000001000b8ccc 
> dmd`CompoundStatement::semantic(Scope*) + 284
>         frame #35: 0x00000001000543b1 
> dmd`FuncDeclaration::semantic3(Scope*) + 3425
>         frame #36: 0x00000001000c94b4 
> dmd`AggregateDeclaration::semantic3(Scope*) + 228
>         frame #37: 0x000000010007c754 dmd`Module::semantic3() + 
> 84
>         frame #38: 0x0000000100079d30 dmd`tryMain(unsigned 
> long, char const**) + 10560
>         frame #39: 0x0000000100000a28 dmd`_start + 230
>         frame #40: 0x0000000100000941 dmd`start + 33
>     (lldb)
>
> That's a clean build from Digger...
> Thanks in advance.
>
> ---
> Paolo

I get the same. Two separate dustmite reductions got me 
https://issues.dlang.org/show_bug.cgi?id=13795 and 
https://issues.dlang.org/show_bug.cgi?id=13788

I suspect it's showing up because of building with clang. IIRC it 
only happens if you build a release version of the compiler.