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vkd3d-shader: Allocate temporary registers for anonymous expressions.

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Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura
2021-04-08 23:38:24 -05:00
committed by Alexandre Julliard
parent 16163021b9
commit e957d3a346
2 changed files with 13 additions and 0 deletions
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1
libs/vkd3d-shader/hlsl.h
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@ -171,6 +171,7 @@ struct hlsl_ir_node
* true even for loops, since currently we can't have a reference to a * true even for loops, since currently we can't have a reference to a
* value generated in an earlier iteration of the loop. */ * value generated in an earlier iteration of the loop. */
unsigned int index, last_read; unsigned int index, last_read;
struct hlsl_reg reg;
}; };
struct hlsl_src struct hlsl_src

12
libs/vkd3d-shader/hlsl_codegen.c
View File

@ -747,6 +747,18 @@ static void allocate_temp_registers_recurse(struct list *instrs, struct liveness
LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry) LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry)
{ {
if (!instr->reg.allocated && instr->last_read)
{
if (instr->data_type->reg_size > 1)
instr->reg = allocate_range(liveness, instr->index,
instr->last_read, instr->data_type->reg_size);
else
instr->reg = allocate_register(liveness, instr->index,
instr->last_read, instr->data_type->dimx);
TRACE("Allocated anonymous expression @%u to %s (liveness %u-%u).\n", instr->index,
debug_register('r', instr->reg, instr->data_type), instr->index, instr->last_read);
}
switch (instr->type) switch (instr->type)
{ {
case HLSL_IR_IF: case HLSL_IR_IF: