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nir/gather_info: check copy_deref instrs for writing outputs

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this is a valid way to write an output even though it usually gets rewritten
to some other instruction later on

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15228>
This commit is contained in:
Mike Blumenkrantz 2022-03-02 11:33:03 -05:00 • committed by Marge Bot
parent fdee7240ff
commit 0d80aed363
1 changed files with 6 additions and 1 deletions
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7
src/compiler/nir/nir_gather_info.c
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@ -196,6 +196,10 @@ get_io_offset(nir_deref_instr *deref, nir_variable *var, bool is_arrayed,
bool skip_non_arrayed)
{
if (var->data.compact) {
if (deref->deref_type == nir_deref_type_var) {
assert(glsl_type_is_array(var->type));
return 0;
}
assert(deref->deref_type == nir_deref_type_array);
return nir_src_is_const(deref->arr.index) ?
(nir_src_as_uint(deref->arr.index) + var->data.location_frac) / 4u :
@ -491,7 +495,8 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
case nir_intrinsic_interp_deref_at_offset:
case nir_intrinsic_interp_deref_at_vertex:
case nir_intrinsic_load_deref:
case nir_intrinsic_store_deref:{
case nir_intrinsic_store_deref:
case nir_intrinsic_copy_deref:{
nir_deref_instr *deref = nir_src_as_deref(instr->src[0]);
if (nir_deref_mode_is_one_of(deref, nir_var_shader_in |
nir_var_shader_out)) {