[Bug c/54179] please split insn-emit.c !

[jason.vas.dias at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54179

--- Comment #1 from Jason Vas Dias <jason.vas.dias at gmail dot com> 2012-08-05 11:11:28 UTC ---
Why must we compile 1.8MB of insn-emit.c ?

Can't it be split up ?

Why is gcc-4.7.1 SO much slower ?
  ie. evidently the Stage1 and Stage2 compilers were able to build insn-emit.c
  in acceptable time. Why is the Stage3 compiler unable to do it in over 2 days
??

Why over 5000 memory maps ? 

When I strace the process, all it seems to be doing is managing this vast
amount
of memory :
$ strace -tfp 3863
Process 3863 attached - interrupt to quit
11:10:24 madvise(0x7fd59ef79000, 16384, MADV_DONTNEED) = 0
11:10:24 madvise(0x7fd59f1b7000, 8192, MADV_DONTNEED) = 0
11:10:33 madvise(0x7fd3f95b8000, 4096, MADV_DONTNEED) = 0
11:10:33 madvise(0x7fd4d9c15000, 4096, MADV_DONTNEED) = 0
11:10:33 madvise(0x7fd4d9c11000, 4096, MADV_DONTNEED) = 0
11:10:33 madvise(0x7fd3f95b7000, 4096, MADV_DONTNEED) = 0