Bug 389848 - GMCS miscompiles huge source file
Summary: GMCS miscompiles huge source file
Status: RESOLVED INVALID
Alias: None
Product: Mono: Runtime
Classification: Mono
Component: misc (show other bugs)
Version: SVN
Hardware: Other Other
: P5 - None : Normal
Target Milestone: ---
Assignee: Mono Bugs
QA Contact: Mono Bugs
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Reported: 2008-05-13 15:05 UTC by Rodrigo Kumpera
Modified: 2008-05-14 18:55 UTC (History)
1 user (show)

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Attachments
test file (201.31 KB, application/x-tar)
2008-05-13 15:07 UTC, Rodrigo Kumpera 		Details
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Description Rodrigo Kumpera 2008-05-13 15:05:16 UTC 
GMCS miscompiles a file with a huge number of methods (40001).

It might be either gmcs or SRE fault.
Comment 1 Rodrigo Kumpera 2008-05-13 15:07:22 UTC 
Created attachment 214823 [details]
test file

The attached cs file has 400001 methods and gmcs miscompiles it.
Comment 2 Marek Safar 2008-05-13 15:16:03 UTC 
Can you better classify "miscompiles"
Comment 3 Rodrigo Kumpera 2008-05-13 15:35:35 UTC 
By miscompilation I mean it generates an invalid assembly. The runtime fail to load it with:

** (tst.exe:22885): CRITICAL **: mono_metadata_string_heap: assertion `index < meta->heap_strings.size' failed


Compiling with csc maked everything work just fine.
Comment 4 Rodrigo Kumpera 2008-05-13 15:36:30 UTC 
Marek,

Let me confirm is this is not a SRE bug first.
Comment 5 Rodrigo Kumpera 2008-05-13 17:50:58 UTC 
Generating similar code directly with SRE doesn't cause any crash.
Comment 6 Marek Safar 2008-05-14 08:38:27 UTC 
gmcs running on .NET compiles this code correctly.

-> runtime
Comment 7 Forgotten User vxPDddArjq 2008-05-14 17:45:32 UTC 
I can't repro this using a runtime built from svn. You might be running gmcs
on the installed runtime, which doesn't contain the table size bugfix.
Comment 8 Rodrigo Kumpera 2008-05-14 18:55:21 UTC 
My bad, running gmcs with old mono was causing it.