Mark Abraham wrote:
Xavier Periole wrote:
Here a following up of the compilation on the IBM.
I got the following warning:
1500-036: (I) The NOSTRICT option (default at OPT(3)) has the
potential
to alter the semantics of a program. Please refer to documentation on the
STRICT/NOSTRICT option for more information.
Should that be a worry?
Depending on the architecture, different optimizations get added in as
-Ox gets higher. You can selectively add "higher" things, e.g. -qhot,
which is probably a default at -O4. You should start with the compiler
man page to get some idea what this might affect.
More exhaustive PDF documentation does accompany all of the IBM
compilers. Often you can find it in installed in a subdirectory near
where the compiler is found in your path.
Mark
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