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* [Bug rtl-optimization/57229] New: 4.6/4.7/4.8 inconsistent check for PRE_MODIFY/POST_MODIFY in post_reload
@ 2013-05-09 14:09 rwahl at gmx dot de
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From: rwahl at gmx dot de @ 2013-05-09 14:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57229
Bug ID: 57229
Summary: 4.6/4.7/4.8 inconsistent check for
PRE_MODIFY/POST_MODIFY in post_reload
Product: gcc
Version: 4.6.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: rwahl at gmx dot de
Created attachment 30077
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30077&action=edit
Proposed fix.
I have found an inconsistency in postreload.c: move2add_note_store(). While
reload_combine_note_store() has been fixed to deal with PRE_MODIFY/POST_MODIFY
in PR 47008 this change is missing for move2add_note_store(). This actually may
lead to wrong code for the msp430 arch (which currently is not yet officially
supported). But I think the code should be fixed anyway to avoid any surprise
when some arch is triggering it. See the attached fix.
This is the URL of the mspgcc bug report:
https://sourceforge.net/p/mspgcc/bugs/353/
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2013-05-09 14:09 [Bug rtl-optimization/57229] New: 4.6/4.7/4.8 inconsistent check for PRE_MODIFY/POST_MODIFY in post_reload rwahl at gmx dot de
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