self-compile record (366s)

[Stephen Weeks]

With limit check coalescing, here is the log for a fixpoint
self-compile.

MLton starting
   Compile SML starting
      pre codegen starting
      pre codegen finished in 102.95 + 67.55 (40% GC)
      x86 code gen starting
      x86 code gen finished in 114.20 + 44.74 (28% GC)
   Compile SML finished in 217.15 + 112.29 (34% GC)
   Compile C starting
   Compile C finished in 6.21 + 0.0 (0.0% GC)
   Assemble starting
   Assemble finished in 27.73 + 0.0 (0.0% GC)
   Link starting
   Link finished in 2.52 + 0.0 (0.0% GC)
MLton finished in 253.70 + 112.30 (31% GC)
max semispace size(bytes): 249,036,800
max stack size(bytes): 4,767,744
GC time(ms): 112,300 (34.1%)
maxPause(ms): 3,570
number of GCs: 143
bytes allocated: 19,049,630,832
bytes copied: 5,452,903,880
max bytes live: 155,566,788
358.33user 7.71system 6:28.50elapsed 94%CPU (0avgtext+0avgdata 0maxresident)k