[Bug c++/45221] missed optimization with multiple bases and up casting and dereferencing

2010-08-06 Thread navin dot kumar at gmail dot com
--- Comment #3 from navin dot kumar at gmail dot com 2010-08-07 02:27 --- The poor optimization does seem to stem from multiple-inheritance (and gcc trying to preserve nulls across casts). But it's not just upcast; even with downcasts slow assembly is generated. Take this example: B

[Bug c/45204] gcc doesn't report aliasing problems in -isystem includes

2010-08-06 Thread contact at philipashmore dot com
--- Comment #6 from contact at philipashmore dot com 2010-08-07 04:03 --- I think the rename better describes this problem - please change it if you can think up a better title. -- contact at philipashmore dot com changed: What|Removed |Added

[Bug c/45204] gcc doesn't report aliasing problems in -isystem includes

2010-08-06 Thread pinskia at gcc dot gnu dot org
--- Comment #7 from pinskia at gcc dot gnu dot org 2010-08-07 04:09 --- Use -Wsystem-headers. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45204

[Bug bootstrap/45222] New: internal compiler error: in ix86_expand_epilogue

2010-08-06 Thread kargl at gcc dot gnu dot org
Someone has broken bootstrap on i386-*-freebsd. I've backed out r162837, r162 /usr/home/kargl/gcc/obj4x/./gcc/xgcc -B/usr/home/kargl/gcc/obj4x/./gcc/ -B/usr/home/kargl/work/i386-unknown-freebsd9.0/bin/ -B/usr/home/kargl/work/i386-unknown-freebsd9.0/lib/ -isystem /usr/home/kargl/work/i386-unknown-

[Bug bootstrap/45222] internal compiler error: in ix86_expand_epilogue

2010-08-06 Thread kargl at gcc dot gnu dot org
--- Comment #1 from kargl at gcc dot gnu dot org 2010-08-07 05:49 --- (In reply to comment #0) > Someone has broken bootstrap on i386-*-freebsd. I've backed out > r162837, r162 > I meant to state that I've backout 162837, 162888, 162889, and one other likely recent commit to no avail.

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