[Mesa-dev] [PATCH v3 086/104] nir: Remove deref chain support from lower_system_values
Jason Ekstrand
jason at jlekstrand.net
Tue Apr 3 18:39:30 UTC 2018
---
src/compiler/nir/nir_lower_system_values.c | 26 +++++++++++---------------
1 file changed, 11 insertions(+), 15 deletions(-)
diff --git a/src/compiler/nir/nir_lower_system_values.c b/src/compiler/nir/nir_lower_system_values.c
index 5191fb3..d2c8456 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) {
@@ -163,10 +159,10 @@ 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);
- if (load_var->intrinsic == nir_intrinsic_load_deref)
- nir_deref_instr_cleanup(nir_src_as_deref(load_var->src[0]));
+ nir_ssa_def_rewrite_uses(&load_deref->dest.ssa, nir_src_for_ssa(sysval));
+ nir_instr_remove(&load_deref->instr);
+ if (load_deref->intrinsic == nir_intrinsic_load_deref)
+ nir_deref_instr_cleanup(nir_src_as_deref(load_deref->src[0]));
progress = true;
}
--
2.5.0.400.gff86faf
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