--- Additional Comments From steven at gcc dot gnu dot org 2004-12-23
01:43 ---
This looks like a problem with the hash function for a REG when we
have many implicit sets:
Found 6001 implicit sets
SET hash table (6001 buckets, 6001 entries)
Index 0 (hash value 58)
(set (reg/v:SI
--- Additional Comments From steven at gcc dot gnu dot org 2004-12-21
08:47 ---
Hmm no, it's not compute_transp:
CPU: P4 / Xeon with 2 hyper-threads, speed 3194.18 MHz (estimated)
Counted GLOBAL_POWER_EVENTS events (time during which processor is not
stopped) with a unit mask of 0x0
--- Additional Comments From steven at gcc dot gnu dot org 2004-12-21
08:38 ---
This is what I get (with checking enabled) for an C5 with two C4s with
"GNU C version 4.0.0 20041220 (experimental) (x86_64-unknown-linux-gnu)":
$ ./cc1 t.c -O2
a
{GC 14385k -> 11467k}
Analyzing comp
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-21
02:39 ---
I think DOM is "fixing" the compile-time/memory-hog on the mainline :).
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