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vkd3d-shader/ir: Properly handle function-local indexable temps when flattening control flow.

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They have to be considered code rather than declarations, as required
for instance by the SPIR-V backend.
This commit is contained in:
Giovanni Mascellani 2024-02-20 15:44:23 +01:00 committed by Alexandre Julliard
parent 6163d82485
commit c5893288d9
Notes: Alexandre Julliard 2024-03-07 23:22:05 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Conor McCarthy (@cmccarthy)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/662
1 changed files with 12 additions and 5 deletions
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17
libs/vkd3d-shader/ir.c
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@ -2041,12 +2041,19 @@ static enum vkd3d_result cf_flattener_iterate_instruction_array(struct cf_flatte
flattener->location = instruction->location;
/* Declarations should occur before the first code block, which in hull shaders is marked by the first
* phase instruction, and in all other shader types begins with the first label instruction. */
if (!after_declarations_section && !vsir_instruction_is_dcl(instruction)
&& instruction->handler_idx != VKD3DSIH_NOP)
* phase instruction, and in all other shader types begins with the first label instruction.
* Declaring an indexable temp with function scope is not considered a declaration,
* because it needs to live inside a function. */
if (!after_declarations_section && instruction->handler_idx != VKD3DSIH_NOP)
{
after_declarations_section = true;
cf_flattener_emit_label(flattener, cf_flattener_alloc_block_id(flattener));
bool is_function_indexable = instruction->handler_idx == VKD3DSIH_DCL_INDEXABLE_TEMP
&& instruction->declaration.indexable_temp.has_function_scope;
if (!vsir_instruction_is_dcl(instruction) || is_function_indexable)
{
after_declarations_section = true;
cf_flattener_emit_label(flattener, cf_flattener_alloc_block_id(flattener));
}
}
cf_info = flattener->control_flow_depth