[Bug tree-optimization/18501] [4.7/4.8/4.9 Regression] Missing 'used uninitialized' warning (CCP)

2014-03-13 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18501 --- Comment #71 from Tom St Denis --- Hey guys, this year will be the 10 year anniversary of this bug. We should order cake!

[Bug rtl-optimization/17838] spills are not re-used

2011-11-15 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17838 --- Comment #10 from Tom St Denis 2011-11-15 14:20:07 UTC --- Another update ... We've just profiled our crypto library and across the board [cipher, hashes, PK functions like RSA/ECC] GCC is a complete loser against ARMcc [r713]. And it's not t

[Bug rtl-optimization/17838] spills are not re-used

2011-11-10 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17838 Tom St Denis changed: What|Removed |Added CC||tstdenis at elliptictech

[Bug rtl-optimization/17838] spills are not re-used

2011-11-10 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17838 --- Comment #9 from Tom St Denis 2011-11-10 19:28:33 UTC --- (In reply to comment #7) > (In reply to comment #6) > > Created attachment 25751 [details] > > Another test case > > > > Another example using > > > > gcc version 4.6.1 20110908 (Red

[Bug rtl-optimization/17838] spills are not re-used

2011-11-08 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17838 --- Comment #6 from Tom St Denis 2011-11-08 14:17:55 UTC --- Created attachment 25751 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25751 Another test case Another example using gcc version 4.6.1 20110908 (Red Hat 4.6.1-9) (GCC) The fu

[Bug tree-optimization/18501] [4.3/4.4/4.5/4.6 Regression] Missing 'used uninitialized' warning (CCP)

2010-12-09 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18501 --- Comment #46 from Tom St Denis 2010-12-09 17:03:37 UTC --- (In reply to comment #44) > (In reply to comment #43) > > Maybe it's high time someone address this shortcoming as opposed to adding > > additional language front ends. If you can't e

[Bug tree-optimization/18501] [4.3/4.4/4.5/4.6 Regression] Missing 'used uninitialized' warning (CCP)

2010-12-09 Thread tstdenis at elliptictech dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18501 --- Comment #43 from Tom St Denis 2010-12-09 15:25:25 UTC --- Maybe it's high time someone address this shortcoming as opposed to adding additional language front ends. If you can't even get the core ones right... Just saying...

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #17 from tstdenis at elliptictech dot com 2010-01-27 17:55 --- (In reply to comment #16) > No, it's an implementation detail. Uninitialized variable use tracking > works with detecting uses of SSA name default definitions. Memory > is not in SSA form so

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #15 from tstdenis at elliptictech dot com 2010-01-27 16:22 --- (In reply to comment #14) > As diglen has its address taken and we do not warn about uninitialized use > of memory we do not warn. > I get that the compiler can't track if an external fun

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #13 from tstdenis at elliptictech dot com 2010-01-27 16:05 --- (In reply to comment #12) > You are apathetic, and your mother and son. >` Apathy: noun, a lack of enthusiasm or emotion. Being dismissive of the bug because other compilers don't detect it either i

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #11 from tstdenis at elliptictech dot com 2010-01-27 15:57 --- (In reply to comment #10) > To be clear: nobody closed this bug, ever. And talking about apathy is plain > offensive, or maybe you are just ignorant of the trade-offs involved in this > area. I didn&

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #9 from tstdenis at elliptictech dot com 2010-01-27 15:43 --- (In reply to comment #8) > Is 'coverity' a compiler? I don't think so. Do you have actual examples of > *compilers* which, everything taken into account, decided to make sure this > c

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #7 from tstdenis at elliptictech dot com 2010-01-27 14:28 --- (In reply to comment #6) > I'm restating my point: indeed, the variable can be used uninitialized. This > is > not at issue. My point is that, depending on the way the compiler is > internally

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #5 from tstdenis at elliptictech dot com 2010-01-27 14:08 --- (In reply to comment #4) > Yes. I'm pretty sure we have duplicates in Bugzilla. Anyway, I just tested two > other high quality compilers and they don't warn either. I don't think we can >

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #3 from tstdenis at elliptictech dot com 2010-01-27 14:02 --- (In reply to comment #1) > No attachment. Moreover, please try also a more recent release, in the 4.4.x > series. > No warning from GCC 4.4.0 when using '-Wall -W -O3'. -- tstdenis at e

[Bug c/42884] GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
--- Comment #2 from tstdenis at elliptictech dot com 2010-01-27 14:01 --- Here's the file [I'm getting an internal error when submitting a file] ---warning.c--- #define NULL ((void *)0) #define OK 0 typedef struct { void *a; } state; int init(int, state *); int done(uns

[Bug c/42884] New: GCC (v4.3.3) fails to detect uninitialized variable

2010-01-27 Thread tstdenis at elliptictech dot com
Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tstdenis at elliptictech dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42884