Re: [AD] msvc7 compiler options

[Milan Mimica <milan.mimica1@xxxxxxxxxx>]

aj wrote:
> > /GL is enable link-time code generation
>
> this document says its  "Whole Program Optimization":
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore/html/vcgrfglwholeprogramoptimization.asp 

I trust these:
cl.exe /help
[...]
                              -OPTIMIZATION-

/O1 minimize space                       /Op[-] improve floating-pt consistency
/O2 maximize speed                       /Os favor code space
/Oa assume no aliasing                   /Ot favor code speed
/Ob<n> inline expansion (default n=0)    /Ow assume cross-function aliasing
/Od disable optimizations (default)      /Ox maximum opts. (/Ogityb2 /Gs)
/Og enable global optimization           /Oy[-] enable frame pointer omission
/Oi enable intrinsic functions

                             -CODE GENERATION-

/G3 optimize for 80386                   /Gh enable _penter function call
/G4 optimize for 80486                   /GH enable _pexit function call
/G5 optimize for Pentium                 /GR[-] enable C++ RTTI
/G6 optimize for PPro, P-II, P-III       /GX[-] enable C++ EH (same as /EHsc)
/G7 optimize for Pentium 4 or Athlon     /EHs enable C++ EH (no SEH exceptions)
/GB optimize for blended model (default) /EHa enable C++ EH (w/ SEH exceptions)
/Gd __cdecl calling convention           /EHc extern "C" defaults to nothrow
/Gr __fastcall calling convention        /GT generate fiber-safe TLS accesses
/Gz __stdcall calling convention         /Gm[-] enable minimal rebuild
/GA optimize for Windows Application     /GL[-] enable link-time code generation
[...]

It doesn't say that any options are mutaly exclusive, so I would use /O2 /Ob1 /Og /Oi /Ot /Ox ..., 
take everything compiler can offer you.


--
Milan Mimica