9.7.2 Optimization groups

The optimization passes are grouped into several categories. Currently defined categories in dumpfile.h are

OPTGROUP_IPA

IPA optimization passes. Enabled by -ipa

OPTGROUP_LOOP

Loop optimization passes. Enabled by -loop.

OPTGROUP_INLINE

Inlining passes. Enabled by -inline.

OPTGROUP_VEC

Vectorization passes. Enabled by -vec.

OPTGROUP_OTHER

All other optimization passes which do not fall into one of the above.

OPTGROUP_ALL

All optimization passes. Enabled by -all.

By using groups a user could selectively enable optimization information only for a group of passes. By default, the optimization information for all the passes is dumped.