[Bug bootstrap/19223] --disable-checking doesn't fully disable checking

[gschafer at zip dot com dot au]

------- Additional Comments From gschafer at zip dot com dot au  2005-01-05 00:19 -------
Here are some timimgs from my test runs. This is all done with:

  --enable-languages=c
  --disable-checking
  make bootstrap

gcc-4.0    14:50
gcc-4.0    12.25    -> with STAGE1_CHECKING manually removed

as you can see, STAGE1_CHECKING results in a 19.5% slowdown!

Here it is again, but this time adding in --disable-mudflap:

gcc-4.0    14.07
gcc-4.0    12.04    -> with STAGE1_CHECKING manually removed

Quicker, but still a 17% slowdown.

Now for comparison purposes, here is gcc-3.4.3

gcc-3.4.3  7.25

Conclusions:

 - STAGE1_CHECKING most definitely slows down C only bootstraps by up to 19.5%
 - C only bootstrap times on GCC-4 have almost exactly doubled since 3.4.3

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19223