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nir_lower_fragcoord_wtrans: Support Vulkan shaders

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In Vulkan shaders, you might not have all derefs pointing to a variable

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20400>
This commit is contained in:
Jesse Natalie
2022-12-19 16:52:50 -08:00
committed by Marge Bot
parent ac5af6c06d
commit b0f3a387c9
1 changed files with 3 additions and 2 deletions
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5
src/compiler/nir/nir_lower_fragcoord_wtrans.c
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@@ -45,10 +45,11 @@ lower_fragcoord_wtrans_filter(const nir_instr *instr, UNUSED const void *_option
if (intr->intrinsic != nir_intrinsic_load_deref)
return false;
nir_variable *var = nir_intrinsic_get_var(intr, 0);
if (var->data.mode != nir_var_shader_in)
nir_deref_instr *deref = nir_src_as_deref(intr->src[0]);
if (!nir_deref_mode_must_be(deref, nir_var_shader_in))
return false;
nir_variable *var = nir_intrinsic_get_var(intr, 0);
return var->data.location == VARYING_SLOT_POS;
}