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digitalmars.D.bugs - [Issue 8460] New: [ICE] Internal error: toir.c 178

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8460

           Summary: [ICE] Internal error: toir.c 178
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Mac OS X
            Status: NEW
          Severity: critical
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: necroment gmail.com


--- Comment #0 from Max Klyga <necroment gmail.com> 2012-07-29 05:16:53 PDT ---
DMD 2.059, OS X 10.6.8

Got a reduced test case for this:

template C() {
    alias void C;
}

class List(T, size_t N) {}

auto list(T...)() {
    return list_impl!(C!T);
}

List!(L, 0) list_impl(L)() {
    return null;
}

auto foldr(alias f, V, T, size_t N)(V, List!(T, N)) {}

auto map(alias f, T, size_t N)(List!(T, N)) {
    foldr!(a => f)(null, list);
}

void main() {
    auto l = list;
    map!(a => a)(l);
    map!(a => a)(l);
}

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--- Comment #1 from Max Klyga <necroment gmail.com> 2012-07-29 05:42:12 PDT ---
Might be a duplicate of isue 6426

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SomeDude <lovelydear mailmetrash.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lovelydear mailmetrash.com


--- Comment #2 from SomeDude <lovelydear mailmetrash.com> 2012-12-28 06:19:15
PST ---
http://dpaste.dzfl.pl/baf6b5df

GDC fails with an internal compiler error but LDC 2.060 runs correctly and also
seems to be corrected with DMD GIT 2.x UDA beta b

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Iain Buclaw <ibuclaw ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ibuclaw ubuntu.com


--- Comment #3 from Iain Buclaw <ibuclaw ubuntu.com> 2012-12-28 13:31:20 PST ---
The problem that happens is that the frontend produces two copies of the same
map!(a => a)(l).

First being:  map!(__lambda4,void,0)
Second being: map!(__lambda6,void,0)

If the frontend were able to detect and correct this collision, the internal
compiler errors (in gdc at least) would stop.

Regards,
Iain.

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |WORKSFORME


--- Comment #4 from Walter Bright <bugzilla digitalmars.com> 2013-06-09
02:58:35 PDT ---
Seems to work fine with DMD 2.064 head.

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