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spirv: Fix propagation of OpVariable access flags

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After the decorations of a variable are evaluated, propagate the
access flag to the associated vtn_pointer.  This was done when
creating the pointer but at that point there was no access flags for
the variable.

Inline the pointer creation to make this point clearer, in isolation
the helper made the impression that the value was being propagated.

Issue found by Ken.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4620>
This commit is contained in:
Caio Marcelo de Oliveira Filho
2020-04-17 14:44:12 -07:00
committed by Marge Bot
parent c76f2292b5
commit a1f6ae4744
2 changed files with 9 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/compiler/spirv/vtn_private.h
View File

@@ -799,10 +799,6 @@ struct vtn_ssa_value *vtn_ssa_transpose(struct vtn_builder *b,
nir_deref_instr *vtn_nir_deref(struct vtn_builder *b, uint32_t id);
struct vtn_pointer *vtn_pointer_for_variable(struct vtn_builder *b,
struct vtn_variable *var,
struct vtn_type *ptr_type);
nir_deref_instr *vtn_pointer_to_deref(struct vtn_builder *b,
struct vtn_pointer *ptr);
nir_ssa_def *

28
src/compiler/spirv/vtn_variables.c
View File

@@ -609,23 +609,6 @@ vtn_pointer_dereference(struct vtn_builder *b,
}
}
struct vtn_pointer *
vtn_pointer_for_variable(struct vtn_builder *b,
struct vtn_variable *var, struct vtn_type *ptr_type)
{
struct vtn_pointer *pointer = rzalloc(b, struct vtn_pointer);
pointer->mode = var->mode;
pointer->type = var->type;
vtn_assert(ptr_type->base_type == vtn_base_type_pointer);
vtn_assert(ptr_type->deref->type == var->type->type);
pointer->ptr_type = ptr_type;
pointer->var = var;
pointer->access = var->access | var->type->access;
return pointer;
}
/* Returns an atomic_uint type based on the original uint type. The returned
* type will be equivalent to the original one but will have an atomic_uint
* type as leaf instead of an uint.
@@ -2211,8 +2194,12 @@ vtn_create_variable(struct vtn_builder *b, struct vtn_value *val,
var->mode = mode;
var->base_location = -1;
vtn_assert(val->value_type == vtn_value_type_pointer);
val->pointer = vtn_pointer_for_variable(b, var, ptr_type);
val->pointer = rzalloc(b, struct vtn_pointer);
val->pointer->mode = var->mode;
val->pointer->type = var->type;
val->pointer->ptr_type = ptr_type;
val->pointer->var = var;
val->pointer->access = var->type->access;
switch (var->mode) {
case vtn_variable_mode_function:
@@ -2382,6 +2369,9 @@ vtn_create_variable(struct vtn_builder *b, struct vtn_value *val,
vtn_foreach_decoration(b, val, var_decoration_cb, var);
vtn_foreach_decoration(b, val, ptr_decoration_cb, val->pointer);
/* Propagate access flags from the OpVariable decorations. */
val->pointer->access |= var->access;
if ((var->mode == vtn_variable_mode_input ||
var->mode == vtn_variable_mode_output) &&
var->var->members) {