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vkd3d-shader/hlsl: Store statically initialized constant scalars/vectors in ctx->static_initializers.

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Constant numeric local variables can be used in places were literals are
expected if they're initialized with a static expression.

Storing such constant in ctx->static_initializers allows copy-prop to
handle such cases properly.
This commit is contained in:
Anna (navi) Figueiredo Gomes
2025-05-28 18:44:38 +02:00
committed by Henri Verbeet
parent 4a8eabf517
commit 13ee6d74ad
Notes: Henri Verbeet 2025-11-24 19:12:24 +01:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Francisco Casas (@fcasas)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1529
2 changed files with 36 additions and 23 deletions
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39
libs/vkd3d-shader/hlsl.y
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@@ -544,16 +544,9 @@ static void check_loop_attributes(struct hlsl_ctx *ctx, const struct parse_attri
hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "Unroll attribute can't be used with 'fastopt' attribute.");
}
static struct hlsl_default_value evaluate_static_expression(struct hlsl_ctx *ctx,
struct hlsl_block *block, struct hlsl_type *dst_type, const struct vkd3d_shader_location *loc)
static bool is_static_expression(struct hlsl_block *block)
{
struct hlsl_default_value ret = {0};
struct hlsl_ir_node *node;
struct hlsl_block expr;
struct hlsl_src src;
if (node_from_block(block)->data_type->class == HLSL_CLASS_ERROR)
return ret;
LIST_FOR_EACH_ENTRY(node, &block->instrs, struct hlsl_ir_node, entry)
{
@@ -582,12 +575,28 @@ static struct hlsl_default_value evaluate_static_expression(struct hlsl_ctx *ctx
case HLSL_IR_SWITCH:
case HLSL_IR_STATEBLOCK_CONSTANT:
case HLSL_IR_SYNC:
hlsl_error(ctx, &node->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX,
"Expected literal expression.");
break;
return false;
}
}
return true;
}
static struct hlsl_default_value evaluate_static_expression(struct hlsl_ctx *ctx,
struct hlsl_block *block, struct hlsl_type *dst_type, const struct vkd3d_shader_location *loc)
{
struct hlsl_default_value ret = {0};
struct hlsl_ir_node *node;
struct hlsl_block expr;
struct hlsl_src src;
if (node_from_block(block)->data_type->class == HLSL_CLASS_ERROR)
return ret;
if (!is_static_expression(block))
hlsl_error(ctx, &node_from_block(block)->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX,
"Expected literal expression.");
if (!hlsl_clone_block(ctx, &expr, &ctx->static_initializers))
return ret;
hlsl_block_add_block(&expr, block);
@@ -2670,7 +2679,7 @@ static struct hlsl_block *initialize_vars(struct hlsl_ctx *ctx, struct list *var
if (v->initializer.args_count)
{
bool is_default_values_initializer;
bool is_default_values_initializer, static_initialization;
is_default_values_initializer = (ctx->cur_buffer != ctx->globals_buffer)
|| (var->storage_modifiers & HLSL_STORAGE_UNIFORM)
@@ -2680,6 +2689,10 @@ static struct hlsl_block *initialize_vars(struct hlsl_ctx *ctx, struct list *var
if (hlsl_type_is_shader(type))
is_default_values_initializer = false;
static_initialization = var->storage_modifiers & HLSL_STORAGE_STATIC
|| (var->data_type->modifiers & HLSL_MODIFIER_CONST
&& is_static_expression(v->initializer.instrs));
if (is_default_values_initializer)
{
/* Default values might have been allocated already for another variable of the same name,
@@ -2708,7 +2721,7 @@ static struct hlsl_block *initialize_vars(struct hlsl_ctx *ctx, struct list *var
{
hlsl_dump_var_default_values(var);
}
else if (var->storage_modifiers & HLSL_STORAGE_STATIC)
else if (static_initialization)
{
hlsl_block_add_block(&ctx->static_initializers, v->initializer.instrs);
}