With INTEL_DEBUG=optimizer, write the output of dump_instructions() to a
file each time an optimization pass makes progress. This lets you easily
diff successive files to see what an optimization pass did.
Example filenames written when running glxgears:
fs8-0000-00-start
fs8-0000-01-04-opt_copy_propagate
fs8-0000-01-06-dead_code_eliminate
fs8-0000-01-12-compute_to_mrf
fs8-0000-02-06-dead_code_eliminate
| | | |
| | | `-- optimization pass name
| | |
| | `-- optimization pass number in the loop
| |
| `-- optimization loop interation
|
`-- shader program number
Note that with INTEL_DEBUG=optimizer, we disable compact_virtual_grfs,
so that we can diff instruction lists across loop interations without
the register numbers being changes.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Matt Turner
55bd8b8b66