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digitalmars.D - DMD crash

reply Magnus Lie Hetland <magnus hetland.org> writes:
When compiling a project I now get the following error from dmd (2.052, 
Mac OS X):

  Assertion failed: (!vthis->csym), function toObjFile, file glue.c, line 703.

(No traceback.)

I've been able to locate the problem -- a call to topN. However, when 
I've tried to isolate and compile the relevant parts of the code, I 
haven't been able to isolate it properly. I'm willing to incrementally 
prune down a clone of my project to create a minimal example, but I'd 
just thought I'd hear if this is a known issue, or if anyone had tips 
on what to do/look for.

I see that the same issue was emailed to the bugs-list in 2006 
(although at that time, the assertion seems to have been on line 402):

  http://bit.ly/fSS7xZ

Any insights?

-- 
Magnus Lie Hetland
http://hetland.org
Mar 23 2011
parent reply Magnus Lie Hetland <magnus hetland.org> writes:
On 2011-03-23 21:51:17 +0100, Magnus Lie Hetland said:


 When compiling a project I now get the following error from dmd (2.052, 
 Mac OS X):
 
   Assertion failed: (!vthis->csym), function toObjFile, file glue.c, line 703.


[snip]

OK, I've managed to simplify thing down about as far as they can go, 
while still triggering this bug. As far as I can see, it requires two 
files (when I tried combining them, the error went away). Also, 
inlining is part of the problem, it seems. (Interestingly, when I try 
to use topN *without* my custom comparison, I get the error "Error: 
function std.algorithm.topN!("a < b",cast(SwapStrategy)0,uint[]).topN 
compiler error, parameter 'r', bugzilla 2962?".)

// foo.d:

import std.random;
import bar;
void main() {
    func();
}

// bar.d:
import std.algorithm;
void func() {
    bool myLess(uint a, uint b) {
        return a < b;
    }
    void inner(uint[] slice) {
        topN!myLess(slice, 0);
    }
}

And when I run foo.d, I get the assertion failure reported above.

Anyone recognize this as a known error?

-- 
Magnus Lie Hetland
http://hetland.org
Mar 23 2011
parent KennyTM~ <kennytm gmail.com> writes:
On Mar 24, 11 05:46, Magnus Lie Hetland wrote:

 On 2011-03-23 21:51:17 +0100, Magnus Lie Hetland said:


 When compiling a project I now get the following error from dmd
 (2.052, Mac OS X):

 Assertion failed: (!vthis->csym), function toObjFile, file glue.c,
 line 703.


 [snip]

 OK, I've managed to simplify thing down about as far as they can go,
 while still triggering this bug. As far as I can see, it requires two
 files (when I tried combining them, the error went away). Also, inlining
 is part of the problem, it seems. (Interestingly, when I try to use topN
 *without* my custom comparison, I get the error "Error: function
 std.algorithm.topN!("a < b",cast(SwapStrategy)0,uint[]).topN compiler
 error, parameter 'r', bugzilla 2962?".)

 // foo.d:

 import std.random;
 import bar;
 void main() {
 func();
 }

 // bar.d:
 import std.algorithm;
 void func() {
 bool myLess(uint a, uint b) {
 return a < b;
 }
 void inner(uint[] slice) {
 topN!myLess(slice, 0);
 }
 }

 And when I run foo.d, I get the assertion failure reported above.

 Anyone recognize this as a known error?


For the ICE, it's likely 5754 or 4129.

5754: http://d.puremagic.com/issues/show_bug.cgi?id=5754
4129: http://d.puremagic.com/issues/show_bug.cgi?id=4129
Mar 23 2011