AlexIndustrial/mesa
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

freedreno/ir3: add experimental GCM pass

Browse Source 
Generally seems to do worse on instruction count and register usage,
according to shader-db.  But shader-db also doesn't do a very good job
of weighting loop bodies, so that might not be totally valid.

So add an env variable to enable GCM pass for easier experimentation.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2018-01-29 14:53:13 -05:00
parent 4c15c53d91
commit 268ab05484
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/freedreno/ir3/ir3_nir.c
+7
View File
@@ -97,6 +97,13 @@ ir3_optimize_loop(nir_shader *s)
progress |= OPT(s, nir_copy_prop);
progress |= OPT(s, nir_opt_dce);
progress |= OPT(s, nir_opt_cse);
static int gcm = -1;
if (gcm == -1)
gcm = env2u("GCM");
if (gcm == 1)
progress |= OPT(s, nir_opt_gcm, true);
else if (gcm == 2)
progress |= OPT(s, nir_opt_gcm, false);
progress |= OPT(s, nir_opt_peephole_select, 16);
progress |= OPT(s, nir_opt_intrinsics);
progress |= OPT(s, nir_opt_algebraic);