[Bug 146] New: ICE (segmentation fault)

[via D.gnu]

http://bugzilla.gdcproject.org/show_bug.cgi?id=146

            Bug ID: 146
           Summary: ICE (segmentation fault)
           Product: GDC
           Version: 4.9.x
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gdc
          Assignee: ibuclaw at gdcproject.org
          Reporter: maor at weka.io

Created attachment 72
  --> http://bugzilla.gdcproject.org/attachment.cgi?id=72&action=edit
The code that breaks gdc (after reduction using Dumtmite), just untar and run
'gdc main.d bucket.d'

The attached reduced code (2 files) causes gdc on Linux/Intel 64bit to seg
fault while dmd compiles the code (the non reduced code is also running fine).

output of 'gdc --version': gdc (Ubuntu 4.9.0-9ubuntu2) 4.9.0

the backtrace extracted by running 'gdc -wrapper gdb,--args main.d bucket.d
-I.' :
(gdb) run
Starting program: /usr/lib/gcc/x86_64-linux-gnu/4.9/cc1d main.d -quiet
-dumpbase main.d -mtune=generic -march=x86-64 -auxbase main -imultiarch
x86_64-linux-gnu -I . -o /tmp/ccKYPvW3.s

Program received signal SIGSEGV, Segmentation fault.
0x000000000063ef14 in Type::baseElemOf() ()
(gdb) bt
#0  0x000000000063ef14 in Type::baseElemOf() ()
#1  0x00000000006bfbf8 in TypeFunction::toCtype() ()
#2  0x000000000068da35 in FuncDeclaration::toSymbol() ()
#3  0x00000000006c0432 in TypeClass::toCtype() ()
#4  0x000000000068f686 in declaration_type(Declaration*) ()
#5  0x0000000000692d78 in layout_aggregate_type(AggLayout*,
AggregateDeclaration*) ()
#6  0x00000000006c0384 in TypeClass::toCtype() ()
#7  0x00000000006c0197 in TypePointer::toCtype() ()
#8  0x00000000006c370a in IndexExp::toElem(IRState*) ()
#9  0x00000000006c2bbc in AssignExp::toElem(IRState*) ()
#10 0x00000000006c4aec in Expression::toElemDtor(IRState*) ()
#11 0x00000000006c8ca8 in ExpStatement::toIR(IRState*) ()
#12 0x00000000006c8ba9 in CompoundStatement::toIR(IRState*) ()
#13 0x00000000006c8ba9 in CompoundStatement::toIR(IRState*) ()
#14 0x000000000069b6c5 in FuncDeclaration::toObjFile(int) ()
#15 0x000000000069a2bf in ClassDeclaration::toObjFile(int) ()
#16 0x000000000069cd4f in Module::genobjfile(int) ()
#17 0x000000000068ce28 in d_parse_file() ()
#18 0x0000000000997712 in ?? ()
#19 0x0000000000999310 in toplev_main(int, char**) ()
#20 0x00007ffff69e6ec5 in __libc_start_main (main=0x5a67d0 <main>, argc=15, 
    argv=0x7fffffffddd8, init=<optimized out>, fini=<optimized out>,

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