Maksim Panchenko 6bef336cc2 Add dyno stats to BOLT. ...

Summary:
Add "-dyno-stats" option that prints instruction stats based on
the execution profile similar to below:

BOLT-INFO: program-wide dynostats after optimizations:
  executed forward branches : 109706407 (+8.1%)
  taken forward branches : 13769074 (-55.5%)
  executed backward branches : 24517582 (-25.0%)
  taken backward branches : 15330256 (-27.2%)
  executed unconditional branches : 6009826 (-35.5%)
  function calls : 17192114 (+0.0%)
  executed instructions : 837733057 (-0.4%)
  total branches : 140233815 (-2.3%)
  taken branches : 35109156 (-42.8%)

Also fixed pseudo instruction discrepancies and added assertions
for BinaryBasicBlock::getNumPseudos() to make sure the number is
synchronized with real number of pseudo instructions.

(cherry picked from FBD3826995)

2016-08-29 21:11:22 -07:00

74 KiB

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