Enable Enhanced Instruction Set

  • Thread starter Thread starter Gabest
  • Start date Start date
G

Gabest

I'd like to know if there is a compiler definition set after this compiler
option, so I can adjust my code to use see/sse2 instructions as well in
those build configurations which have this option turned on.
 
Gabest said:
I'd like to know if there is a compiler definition set after this
compiler option, so I can adjust my code to use see/sse2 instructions
as well in those build configurations which have this option turned
on.
Click to expand...

This is undocumented but...

_M_IX86_FP = null for "normal" builds
_M_IX86_FP = 1 for /arch:SSE
_M_IX86_FP = 2 for /arch:SSE2

Being undocumented, I'd expect that this macro could change meaning or
disappear in any later version. However, these values do hold for VC7.1 and
Whidbey.

-cd
 
This is undocumented but...
_M_IX86_FP = null for "normal" builds
_M_IX86_FP = 1 for /arch:SSE
_M_IX86_FP = 2 for /arch:SSE2

Being undocumented, I'd expect that this macro could change meaning or
disappear in any later version. However, these values do hold for VC7.1 and
Whidbey.

-cd
Click to expand...

I really hoped they existed, thank you very much!
 
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