[Bug c++/26656] New: Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
of a bit. Product: gcc Version: 3.4.5 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dominic dot quiet at gmail dot com http://gcc.gnu.org

[Bug target/26656] Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
--- Comment #2 from dominic dot quiet at gmail dot com 2006-03-12 21:23 --- Created an attachment (id=11030) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11030action=view) Benchmark -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26656

[Bug target/26656] Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
--- Comment #3 from dominic dot quiet at gmail dot com 2006-03-12 21:31 --- Created an attachment (id=11031) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11031action=view) My results without -march=athlon-xp -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26656

[Bug target/26656] Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
--- Comment #4 from dominic dot quiet at gmail dot com 2006-03-12 21:41 --- Created an attachment (id=11032) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11032action=view) My results with -march=athlon-xp The behavior of the ?: compared to without -march=athlon-xp may be a sign

[Bug target/26656] Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
--- Comment #6 from dominic dot quiet at gmail dot com 2006-03-12 22:25 --- Created an attachment (id=11033) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11033action=view) Fixed benchmark I fixed my benchmark. You are right about the condition always being true after 127. I

[Bug target/26656] Optimization flaw on conditionnal set of a bit.

2006-03-12 Thread dominic dot quiet at gmail dot com
--- Comment #7 from dominic dot quiet at gmail dot com 2006-03-12 22:26 --- Created an attachment (id=11034) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11034action=view) My new results without -marh=athlon-xp -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26656