Why we optimize by time by default for < -O2 case?

[LI Xin]

Hi,

I wonder why we want to optimize by time by default and not by space by
default for the system compiler, does the reasoning still hold true?
The commit log said:

  Modified files:
    contrib/gcc          toplev.c
  Log:
  Clarify revision 1.14:
  Gcc 3.1's -O0 and -O1 actually optimized alignment for space, but we feel
  it should optimize alignment for time like Gcc 2.95 used to.  Optimization
  for space should give 1-byte alignment on i386's, but doesn't quite.

  Revision  Changes    Path
  1.15      +0 -0      src/contrib/gcc/toplev.c

Cheers,
-- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!

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