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-rw-r--r--src/compiler/nir/nir_lower_system_values.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/src/compiler/nir/nir_lower_system_values.c b/src/compiler/nir/nir_lower_system_values.c
index 0f27d039d08..d2abc656fa1 100644
--- a/src/compiler/nir/nir_lower_system_values.c
+++ b/src/compiler/nir/nir_lower_system_values.c
@@ -37,21 +37,17 @@ convert_block(nir_block *block, nir_builder *b)
if (instr->type != nir_instr_type_intrinsic)
continue;
- nir_intrinsic_instr *load_var = nir_instr_as_intrinsic(instr);
-
- nir_variable *var;
- if (load_var->intrinsic == nir_intrinsic_load_var) {
- var = load_var->variables[0]->var;
- } else if (load_var->intrinsic == nir_intrinsic_load_deref) {
- var = nir_deref_instr_get_variable(nir_src_as_deref(load_var->src[0]));
- } else {
- continue; /* Not a load instruction */
- }
+ nir_intrinsic_instr *load_deref = nir_instr_as_intrinsic(instr);
+ if (load_deref->intrinsic != nir_intrinsic_load_deref)
+ continue;
+
+ nir_variable *var =
+ nir_deref_instr_get_variable(nir_src_as_deref(load_deref->src[0]));
if (var->data.mode != nir_var_system_value)
continue;
- b->cursor = nir_after_instr(&load_var->instr);
+ b->cursor = nir_after_instr(&load_deref->instr);
nir_ssa_def *sysval = NULL;
switch (var->data.location) {
@@ -178,8 +174,8 @@ convert_block(nir_block *block, nir_builder *b)
sysval = nir_load_system_value(b, sysval_op, 0);
}
- nir_ssa_def_rewrite_uses(&load_var->dest.ssa, nir_src_for_ssa(sysval));
- nir_instr_remove(&load_var->instr);
+ nir_ssa_def_rewrite_uses(&load_deref->dest.ssa, nir_src_for_ssa(sysval));
+ nir_instr_remove(&load_deref->instr);
progress = true;
}
@@ -208,6 +204,8 @@ nir_lower_system_values(nir_shader *shader)
{
bool progress = false;
+ nir_assert_unlowered_derefs(shader, nir_lower_load_store_derefs);
+
nir_foreach_function(function, shader) {
if (function->impl)
progress = convert_impl(function->impl) || progress;