[Bug middle-end/38518] Excessive compile time with -O3
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Jan 14 11:20:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38518
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
With GCC 4.8 we see
loop invariant motion : 16.79 (32%) usr 0.02 ( 3%) sys 16.65 (31%) wall
148 kB ( 0%) ggc
loop unswitching : 10.43 (20%) usr 0.02 ( 3%) sys 10.42 (20%) wall
0 kB ( 0%) ggc
TOTAL : 52.07 0.67 53.00
363360 kB
which is RTL loop optimizers.
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