Mesa (main): nir_lower_mediump: Drop assertion about not containing movs.
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Wed Jun 1 23:05:10 UTC 2022
Module: Mesa
Branch: main
Commit: 6e087f96c9830da07a0c788d94d2af6112a4425e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=6e087f96c9830da07a0c788d94d2af6112a4425e
Author: Emma Anholt <emma at anholt.net>
Date: Thu May 19 13:26:33 2022 -0700
nir_lower_mediump: Drop assertion about not containing movs.
A 1D texture operation may need to do a mov to turn a reference to a
channel of an SSA value into a scalar value to be passed as the texture
coordinate (since texture srcs can't do swizzles). Seen in
amnesia-the-dark-descent/low/46.shader_test() for example, where a 1D
texture is used to remap each of r,g,b from a previous texture result.
Besides, the nir_op_is_vec() case will (perhaps surprisingly) look through
a mov, anyway.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16616>
---
src/compiler/nir/nir_lower_mediump.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/src/compiler/nir/nir_lower_mediump.c b/src/compiler/nir/nir_lower_mediump.c
index 927b2692dc6..5c6f84ec9be 100644
--- a/src/compiler/nir/nir_lower_mediump.c
+++ b/src/compiler/nir/nir_lower_mediump.c
@@ -465,12 +465,6 @@ nir_fold_16bit_sampler_conversions(nir_shader *nir,
nir_alu_type src_type = nir_tex_instr_src_type(tex, i);
- if (src_alu->op == nir_op_mov) {
- assert(!"The IR shouldn't contain any movs to make this pass"
- " effective.");
- continue;
- }
-
/* Handle vector sources that are made of scalar instructions. */
if (nir_op_is_vec(src_alu->op)) {
/* See if the vector is made of f16->f32 opcodes. */
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