Bug 738516 - internal compiler error
Summary: internal compiler error
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: 15
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-15 04:06 UTC by Alexander Gagarin
Modified: 2011-10-04 12:21 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-10-04 12:21:53 UTC

Attachments (Terms of Use)
compiler-generated preprocessed source file (834.29 KB, application/zip)
2011-09-15 04:06 UTC, Alexander Gagarin
no flags Details
source that produce error (11.00 KB, application/zip)
2011-09-15 10:01 UTC, Alexander Gagarin
no flags Details
refined sources that compile successfully (11.16 KB, application/zip)
2011-09-15 10:03 UTC, Alexander Gagarin
no flags Details

System ID Priority Status Summary Last Updated
GNU Compiler Collection 50611 None None None Never

Description Alexander Gagarin 2011-09-15 04:06:49 UTC
Created attachment 523296 [details]
compiler-generated preprocessed source file

Description of problem:
internal compiler error happens when compiling a cpp file in my project

Version-Release number of selected component (if applicable):
gcc (GCC) 4.6.1 20110908 (Red Hat 4.6.1-9)

How reproducible:
Try to compile attached preprocessed source file.

Steps to Reproduce:
1. Compile attached preprocessed source file.
Actual results:
internal compiler error

Expected results:
successful build or normal error report produced by compiler about my sources.

Additional info:

Comment 1 Alexander Gagarin 2011-09-15 04:15:14 UTC
Also reproducible with gcc-4.6.0-10 from Fedora Updates repository.

Comment 2 Alexander Gagarin 2011-09-15 09:56:18 UTC
The code attached in the bug report is actually incorrect. There are errors in function blue_sky::wpi_strategy_3d::on_boxes_intersect, but compiler doesn't see it and exit with internal error.

I was trying to overcome compiler error and while compiling different variants I saw valid reports about errors in my code printed by gcc, but it finally ended up with internal error.

Finally I found a solution that makes this error disappear. If blue_sky::(anonymous)::wpi_impl don't inherit from blue_sky::wpi_strategy_3d then compilation is successful. But in that case I have to redefine misc helper functions from strategy to "import" them into wpi_impl namespace, which is not so convenient, but works.

I will attach some "human readable" sources related to the problem.

Comment 3 Alexander Gagarin 2011-09-15 10:01:49 UTC
Created attachment 523336 [details]
source that produce error

Most valuable sources that produce internal compiler error

Comment 4 Alexander Gagarin 2011-09-15 10:03:50 UTC
Created attachment 523337 [details]
refined sources that compile successfully

That code does almost the same, but builds OK

Comment 5 Jakub Jelinek 2011-10-04 12:21:53 UTC
This is internal compiler error on invalid source, so deferring that to upstream only.

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