diff options
| author | Eric Anholt <[email protected]> | 2019-04-11 11:12:01 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2019-04-12 16:16:58 -0700 |
| commit | dc402be73e4bbb9b43213a4266b98a46092e3038 (patch) | |
| tree | 2ceedd9ccee93e28f7e661f0e0155b651e15608f /src/broadcom/compiler/vir.c | |
| parent | 18ed82b084c79bf63666f2da22e5d675fb01aa26 (diff) | |
v3d: Use the new lower_to_scratch implementation for indirects on temps.
We can use the same register spilling infrastructure for our loads/stores
of indirect access of temp variables, instead of doing an if ladder.
Cuts 50% of instructions and max-temps from 2 KSP shaders in shader-db.
Also causes several other KSP shaders with large bodies and large loop
counts to not be force-unrolled.
The change was originally motivated by NOLTIS slightly modifying register
pressure in piglit temp mat4 array read/write tests, triggering register
allocation failures.
Diffstat (limited to 'src/broadcom/compiler/vir.c')
| -rw-r--r-- | src/broadcom/compiler/vir.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c index 6655e5e73bc..5d4e5dd103a 100644 --- a/src/broadcom/compiler/vir.c +++ b/src/broadcom/compiler/vir.c @@ -579,6 +579,12 @@ v3d_lower_nir(struct v3d_compile *c) NIR_PASS_V(c->s, nir_lower_tex, &tex_options); NIR_PASS_V(c->s, nir_lower_system_values); + + NIR_PASS_V(c->s, nir_lower_vars_to_scratch, + nir_var_function_temp, + 0, + glsl_get_natural_size_align_bytes); + NIR_PASS_V(c->s, v3d_nir_lower_scratch); } static void |