http://gdcproject.org/bugzilla/show_bug.cgi?id=21
Bug #: 21
Summary: ICE on calling function with delegate literal
containing 'new'
Classification: Unclassified
Product: GDC
Version: 4.7.x
Platform: x86_64
OS/Version: Linux
Status: NEW
Severity: major
Priority: Normal
Component: gdc
AssignedTo: ibuc...@gdcproject.org
ReportedBy: hst...@quickfur.ath.cx
void addOp(void* delegate() impl) { }
static this() {
addOp({ return new B(); });
}
$ gdc -I. -O3 -g3 -frelease -c -o veclist.o veclist.d
veclist.d:5: Error: undefined identifier B
cc1d: /usr/src/gcc-4.7/gcc-4.7-4.7.2/src/gcc/d/dfrontend/cast.c:1727: virtual
Expression* FuncExp::inferType(Type*, int, TemplateParameters*): Assertion
`typen->deco' failed.
cc1d: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
This error seems very dependent on the exact compilation flags; replacing
-frelease with -funittest, for example, *seems* to make it go away. But I
suspect the problem is still there; it just doesn't show up. This is the same
bug that I posted about on the forum; I was unable to reduce it last time
because I was running with -funittest, and past a certain code size the problem
becomes hidden. Furthermore, I found that separate compilation vs. bulk
compilation isn't the real issue; separate compilation with -frelease also
triggers this bug.
Also, the undefined identifier B in the original code is actually defined
(under a different name, the exact name doesn't appear to matter -- the void*
was originally a base class of B). But the problem seems to disappear upon
reduction unless I keep an undefined identifier there. So this bug is NOT
merely a problem with undefined identifiers, in the original code it's defined
but still ICE's.
During the early stages of code reduction, the above ICE was randomly
alternating with a memory corruption error. I couldn't isolate the memory
corruption, but I did manage to isolate the typen->deco ICE.
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