[Bug middle-end/48377] [4.6 regression] miscompilation at -O3

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377 --- Comment #3 from Matt Hargett 2011-04-01 01:40:34 UTC --- Created attachment 23845 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23845 file with regression compiled with same flags, aside from -ftree-*

[Bug middle-end/48377] [4.6 regression] miscompilation at -O3

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377 --- Comment #5 from Matt Hargett 2011-04-05 03:53:19 UTC --- (In reply to comment #4) > Anyway, please read http://gcc.gnu.org/bugs.html, there is nothing we can do > from the information you've provided. Trying to find from a vague description

[Bug middle-end/48377] [4.6 regression] miscompilation at -O3

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377 --- Comment #6 from Matt Hargett 2011-04-05 20:38:41 UTC --- in the 46bug/ dir in the attached tarball: g++ -O3 -g -I. -c te_field_id.cpp && g++ *.o -o test induces the crash: ==31412== General Protection Fault ==31412==at 0x400F38: TE_Fie

[Bug middle-end/48377] [4.6 regression] miscompilation at -O3

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377 --- Comment #7 from Matt Hargett 2011-04-05 20:39:33 UTC --- Created attachment 23887 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23887 reduced test case, commandline to compile in bug comments

[Bug middle-end/48377] [4.6 regression] miscompilation at -O3

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377 --- Comment #10 from Matt Hargett 2011-04-06 22:22:41 UTC --- I do see the alignment problem you point out (though I'm disappointed that neither PC-Lint nor GCC's warnings alerted me). I made the changes you proposed, but still get the same crash

[Bug c/46076] [4.6/4.7 regression] constant propagation and compile-time math no longer happening versus 4.4 and 4.5

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46076 --- Comment #25 from Matt Hargett 2011-04-12 16:24:33 UTC --- backport to 4.6 for 4.6.1? I'll apply locally and report any issues in the meantime.

[Bug tree-optimization/43270] array-bounds false negative

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43270 Matt Hargett changed: What|Removed |Added Status|RESOLVED|VERIFIED --- Comment #21 from Matt Hargett

[Bug c/46076] [4.6/4.7 regression] constant propagation and compile-time math no longer happening versus 4.4 and 4.5

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46076 --- Comment #27 from Matt Hargett 2011-04-12 18:15:33 UTC --- That's unfortunate. Can you adjust the target milestone, then?

[Bug c++/46890] [4.6 Regression] Failed to compile scummvm's player_v4a.cpp

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46890 Matt Hargett changed: What|Removed |Added Status|RESOLVED|VERIFIED --- Comment #12 from Matt Hargett

[Bug middle-end/42371] dead code not eliminated during folding with whole-program

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42371 Matt Hargett changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|

[Bug middle-end/48600] New: [4.6 regression] ICE when using cold attribute

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48600 Summary: [4.6 regression] ICE when using cold attribute Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: major Priority: P3 Component: middle-end AssignedTo:

[Bug middle-end/48600] [4.6 regression] ICE when using cold attribute

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48600 --- Comment #2 from Matt Hargett 2011-04-14 17:00:19 UTC --- Created attachment 23983 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23983 source file which elicits the error at -O[123]

[Bug middle-end/48600] [4.6 regression] ICE when using cold attribute

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48600 --- Comment #3 from Matt Hargett 2011-04-15 18:30:23 UTC --- I added the attachment; are you still waiting on something from me? Let me know :)

[Bug debug/48670] New: explosion in time and stack usage when using -ggdb

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48670 Summary: explosion in time and stack usage when using -ggdb Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo:

[Bug middle-end/48672] New: [4.6 regression] control reaches end of non-void false positive

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48672 Summary: [4.6 regression] control reaches end of non-void false positive Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Com

[Bug middle-end/48672] [4.6 regression] control reaches end of non-void false positive

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48672 --- Comment #1 from Matt Hargett 2011-04-18 21:49:55 UTC --- Created attachment 24038 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24038 g++ -O0 -Wreturn-type -c abm.i

[Bug debug/48670] explosion in time and stack usage when using -ggdb

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48670 --- Comment #2 from Matt Hargett 2011-04-20 23:54:54 UTC --- Created attachment 24065 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24065 reduced test case, commandline to compile in bug comments

[Bug debug/48670] explosion in time and stack usage when using -ggdb

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48670 --- Comment #3 from Matt Hargett 2011-04-20 23:59:45 UTC --- When compiling the example with 4.5.2, memory usage peaks at around 216meg on my Ubuntu 10.10/amd64 machine. With 4.6, it peaks at 3.2gig(!) In the non-reduced test case, it gets up to

[Bug debug/48670] explosion in time and stack usage when using -ggdb

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48670 --- Comment #4 from Matt Hargett 2011-04-25 18:55:36 UTC --- ping? Anything else you need from me on this?

[Bug tree-optimization/40052] missed optimizations on (extended) logical types: (x | 1) --> 1

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40052 Matt Hargett changed: What|Removed |Added CC||matt at use dot net --- Comment #3 from

[Bug tree-optimization/15347] [tree-ssa] fold if ("<12ers" + 1 == 0).

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15347 Matt Hargett changed: What|Removed |Added CC||matt at use dot net --- Comment #9 from

[Bug tree-optimization/37242] missed FRE opportunity because of signedness of addition

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37242 Matt Hargett changed: What|Removed |Added CC||matt at use dot net --- Comment #19 from

[Bug tree-optimization/39689] IPA should compute if a function may recurse

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39689 Matt Hargett changed: What|Removed |Added CC||matt at use dot net --- Comment #8 from

[Bug middle-end/46076] New: [4.6 regression] constant propogation and compile-time math no longer happening versus 4.4 and 4.5

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46076 Summary: [4.6 regression] constant propogation and compile-time math no longer happening versus 4.4 and 4.5 Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal

[Bug middle-end/46076] [4.6 regression] constant propogation and compile-time math no longer happening versus 4.4 and 4.5

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46076 --- Comment #2 from Matt Hargett 2010-10-18 21:36:23 UTC --- This is a reduction from proprietary (and complex) code, and the optimization has regressed there as well. Any diagnosis on why it would have regressed and not triggered a testsuite fai

[Bug tree-optimization/46077] New: [4.6 regression] ICE in tree vectorization when compiling towns_audio.cpp from scummvm

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46077 Summary: [4.6 regression] ICE in tree vectorization when compiling towns_audio.cpp from scummvm Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Pr

[Bug c++/46078] New: [4.6 regression] new valgrind warnings when compiling an optimization test case

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46078 Summary: [4.6 regression] new valgrind warnings when compiling an optimization test case Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority:

[Bug middle-end/42561] missing uninitialized variable warning on simple arrays

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42561 Matt Hargett changed: What|Removed |Added Version|4.5.0 |4.6.0 --- Comment #7 from Matt Hargett 20

[Bug middle-end/42577] [4.4 Regression] array bounds false positive with -O3, goes away with -O2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42577 Matt Hargett changed: What|Removed |Added Status|NEW |RESOLVED Resolution|

[Bug bootstrap/42628] ICE during bootstrap when compiling several libsupc++ files: original tree changed by fold

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42628 --- Comment #12 from Matt Hargett 2010-10-18 22:44:19 UTC --- If someone resolves this bug as a duplicate of PR45700 (or vice versa), I'll verify.

[Bug c/46076] [4.6 regression] constant propagation and compile-time math no longer happening versus 4.4 and 4.5

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46076 --- Comment #11 from Matt Hargett 2010-11-17 21:37:43 UTC --- Given that "int foo()" and "int foo(void)" are not varargs functions, shouldn't GCC mainline be able to optimize this?

[Bug middle-end/42371] dead code not eliminated during folding with whole-program

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42371 --- Comment #5 from Matt Hargett 2010-11-17 21:43:13 UTC --- GCC 4.6.0.20101116 still shows this problem, but also introduces new problems on top of it. Let me know if I should file a new bug for the regressions. Either way, is there any update o

[Bug tree-optimization/46077] [4.6 regression] ICE in tree vectorization when compiling towns_audio.cpp from scummvm

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46077 Matt Hargett changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|DUPLICATE

[Bug tree-optimization/46077] [4.6 regression] ICE in tree vectorization when compiling towns_audio.cpp from scummvm

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46077 Matt Hargett changed: What|Removed |Added Severity|normal |critical

[Bug c++/46890] New: compile regression from 4.5 when building scummvm's player_v4a.cpp

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46890 Summary: compile regression from 4.5 when building scummvm's player_v4a.cpp Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3

[Bug middle-end/42371] dead code not eliminated during folding with whole-program

--- Comment #4 from matt at use dot net 2010-06-07 19:46 --- Let me know when this is implemented on trunk (preferrably by marking this report as resolved) and I'll test my proprietary test cases here. Thanks! -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42371

[Bug tree-optimization/39799] [4.3/4.4/4.5/4.6 Regression] missing 'may be used uninitialized' warning

--- Comment #7 from matt at use dot net 2010-06-30 23:36 --- Will this be backported to 4.4 and/or 4.5? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39799

[Bug middle-end/48600] [4.6/4.7 Regression] ICE when using cold attribute

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48600 --- Comment #5 from Matt Hargett 2011-06-01 14:36:17 UTC --- any chance this can be fixed for 4.6.1? this is a critical regression for us.

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