For TGSI-based drivers, st_glsl_to_tgsi records this information.
For NIR-based drivers, nir_shader_gather_info() will do so.
---
src/compiler/nir/nir_gather_info.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
Patches 1.1 and 1.2 here replace:
[PATCH 1/3] compiler: Track which textures are accessed via texelFetch().
now that Nicolai's patches have landed.
diff --git a/src/compiler/nir/nir_gather_info.c
b/src/compiler/nir/nir_gather_info.c
index ac87bec46c0..f46cee7aa5e 100644
--- a/src/compiler/nir/nir_gather_info.c
+++ b/src/compiler/nir/nir_gather_info.c
@@ -264,8 +264,20 @@ gather_intrinsic_info(nir_intrinsic_instr *instr,
nir_shader *shader)
static void
gather_tex_info(nir_tex_instr *instr, nir_shader *shader)
{
- if (instr->op == nir_texop_tg4)
+ switch (instr->op) {
+ case nir_texop_tg4:
shader->info.uses_texture_gather = true;
+ break;
+ case nir_texop_txf:
+ case nir_texop_txf_ms:
+ case nir_texop_txf_ms_mcs:
+ shader->info.textures_used_by_txf |=
+ ((1 << MAX2(instr->texture_array_size, 1)) - 1) <<
+ instr->texture_index;
+ break;
+ default:
+ break;
+ }
}
static void
--
2.14.2
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