diff options
| author | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2021-06-05 15:05:37 -0400 |
|---|---|---|
| committer | Marge Bot <eric+marge@anholt.net> | 2021-06-05 20:38:22 +0000 |
| commit | c5098789718f652a4853e96fc7d46fc208f0d283 (patch) | |
| tree | 0aef87896bbb9e2021957097eb0a22f799f5b14b /src/compiler | |
| parent | cac88b5f060e93dc77546eb730688f1b662ef2c1 (diff) | |
nir: Add nir_intrinsic_load_back_face_agx
On AGX, the special register for front facing is inverted from its meaning in
APIs. We need to lower load_front_face to inot(load_back_face). Doing this in
the backend is trivial, but then we would miss out on algebraic optimizations
for the inot.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11199>
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/nir/nir_intrinsics.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_intrinsics.py b/src/compiler/nir/nir_intrinsics.py index 072a366c786..18d24b90a9e 100644 --- a/src/compiler/nir/nir_intrinsics.py +++ b/src/compiler/nir/nir_intrinsics.py @@ -1183,6 +1183,9 @@ store("tlb_sample_color_v3d", [1], [BASE, COMPONENT, SRC_TYPE], []) # the target framebuffer intrinsic("load_fb_layers_v3d", dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER]) +# Logical complement of load_front_face, mapping to an AGX system value +system_value("back_face_agx", 1, bit_sizes=[1, 32]) + # Intel-specific query for loading from the brw_image_param struct passed # into the shader as a uniform. The variable is a deref to the image # variable. The const index specifies which of the six parameters to load. |