[Bug c/33651] New: Request warning on null pointer chk optimized after ptr deref

: unassigned at gcc dot gnu dot org ReportedBy: david_albert at axiometric dot com GCC build triplet: 4.2.0 GCC host triplet: i686-pc-cygwin GCC target triplet: arm-elf-gcc http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33651

[Bug c/33594] Local (stack) arrays not aligned on word boundaries

--- Comment #5 from david_albert at axiometric dot com 2007-10-03 22:06 --- This issue has affected *many* developers on a variety of platforms including ARM and PPC. There is no elegant way to resolve this without searching through every line of code. There is a warning -Wcast-align

[Bug c/33629] bad code with -O2 if pointer dereference followed by null test

--- Comment #2 from david_albert at axiometric dot com 2007-10-02 18:24 --- There is a compiler flag to prevent this optimization: -fno-delete-null-pointer-checks This flag should be included by default for popular targets such as the ARM7 that do not have hardware memory managers so

[Bug c/33629] New: bad code with -O2 if pointer dereference followed by null test

rsion: 4.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: david_albert at axiometric dot com GCC build triplet: 4.2.1 GCC host triplet: i486-linux-gnu GCC target trip