Bug 389848

Summary:	GMCS miscompiles huge source file
Product:	[Mono] Mono: Runtime	Reporter:	Rodrigo Kumpera <rkumpera>
Component:	misc	Assignee:	Mono Bugs <mono-bugs>
Status:	RESOLVED INVALID	QA Contact:	Mono Bugs <mono-bugs>
Severity:	Normal
Priority:	P5 - None	CC:	forgotten_vxPDddArjq
Version:	SVN
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	test file

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.