diff options
| author | Lionel Landwerlin <[email protected]> | 2018-08-23 14:34:19 +0100 |
|---|---|---|
| committer | Lionel Landwerlin <[email protected]> | 2018-09-03 17:24:19 +0100 |
| commit | 07a2098a708a2bdba1697cbfeb435533b828d5c4 (patch) | |
| tree | c6aff19ca55f960afc49e063e711cd536a6cac65 /src/intel/compiler | |
| parent | 095600dad6ee2c93b92026ba9c78ad829a79fcd0 (diff) | |
intel: compiler: remove dead local variables at optimization pass
We're hitting an assert in gfxbench because one of the local variable
is a sampler (according to Jason this isn't valid) :
testfw_app: ../src/compiler/nir_types.cpp:551: void glsl_get_natural_size_align_bytes(const glsl_type*, unsigned int*, unsigned int*): Assertion `!"type does not have a natural size"' failed.
Since this particular variable isn't used, it can be eliminated by
removing unused local variables at the end of the optimization loop.
This makes sense also for valid local variables.
v2: Move additional local variable removal out of optimization loop,
but before large constant removal (Jason/Lionel)
v3: Move the removal at the end of brw_nir_optimize()
Signed-off-by: Lionel Landwerlin <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107806
Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/intel/compiler')
| -rw-r--r-- | src/intel/compiler/brw_nir.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c index ef5034d1e1e..a906a026042 100644 --- a/src/intel/compiler/brw_nir.c +++ b/src/intel/compiler/brw_nir.c @@ -597,6 +597,11 @@ brw_nir_optimize(nir_shader *nir, const struct brw_compiler *compiler, OPT(nir_lower_pack); } while (progress); + /* Workaround Gfxbench unused local sampler variable which will trigger an + * assert in the opt_large_constants pass. + */ + OPT(nir_remove_dead_variables, nir_var_local); + return nir; } |