[Bug tree-optimization/23928] Exceptions require an excessive amount of compile-time memory

[rguenth at tat dot physik dot uni-tuebingen dot de]

------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de  2005-09-17 18:00 -------
eh-complexity patch from

http://gcc.gnu.org/ml/gcc-patches/2005-06/msg01052.html

slightly edited to apply (and approved by GeoffK in june) helps:

peak memory usage is down to 1.2GB.

 garbage collection    :  17.32 ( 6%) usr   0.84 (11%) sys  18.19 ( 6%) wall   
   0 kB ( 0%) ggc
 integration           :  29.85 (10%) usr   0.86 (11%) sys  30.90 (10%) wall
2695445 kB (234%) ggc
 tree PTA              :  15.98 ( 6%) usr   0.23 ( 3%) sys  15.50 ( 5%) wall  
59710 kB ( 5%) ggc
 tree alias analysis   :  11.35 ( 4%) usr   0.51 ( 7%) sys  12.34 ( 4%) wall  
95003 kB ( 8%) ggc
 tree PHI insertion    :   2.19 ( 1%) usr   0.02 ( 0%) sys   2.26 ( 1%) wall  
35414 kB ( 3%) ggc
 tree SSA rewrite      :  12.47 ( 4%) usr   0.11 ( 1%) sys  12.80 ( 4%) wall 
203797 kB (18%) ggc
 tree SSA other        :   1.81 ( 1%) usr   0.26 ( 3%) sys   2.03 ( 1%) wall   
2499 kB ( 0%) ggc
 tree SSA incremental  :  24.40 ( 8%) usr   0.10 ( 1%) sys  24.65 ( 8%) wall  
64150 kB ( 6%) ggc
 tree operand scan     :   9.95 ( 3%) usr   1.00 (13%) sys  11.09 ( 4%) wall 
116251 kB (10%) ggc
 dominator optimization:  11.43 ( 4%) usr   0.07 ( 1%) sys  11.36 ( 4%) wall 
168489 kB (15%) ggc
 TOTAL                 : 288.38             7.62           297.15           
1154283 kB


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23928