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vkd3d-shader/ir: Lower ABSNEG modifiers to instructions.

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This commit is contained in:
Giovanni Mascellani
2025-10-08 23:18:18 +02:00
committed by Henri Verbeet
parent 968eb7467c
commit b5b5c67b34
Notes: Henri Verbeet 2025-10-13 19:32:46 +02:00 
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1783
4 changed files with 23 additions and 109 deletions
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17
libs/vkd3d-shader/ir.c
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@@ -2179,37 +2179,42 @@ static enum vkd3d_result vsir_program_lower_modifiers(struct vsir_program *progr
{
struct vsir_program_iterator it = vsir_program_iterator(&program->instructions), new_it;
struct vkd3d_shader_instruction *ins, *new_ins;
unsigned int i;
unsigned int i, j;
for (ins = vsir_program_iterator_head(&it); ins; ins = vsir_program_iterator_next(&it))
{
for (i = 0; i < ins->src_count; ++i)
{
enum vkd3d_shader_opcode new_opcodes[2] = {VSIR_OP_NOP, VSIR_OP_NOP};
struct vkd3d_shader_src_param *src = &ins->src[i];
enum vkd3d_shader_opcode new_opcode = VSIR_OP_NOP;
/* TODO: support other modifiers, including destination modifiers. */
switch (src->modifiers)
{
case VKD3DSPSM_ABS:
new_opcode = VSIR_OP_ABS;
new_opcodes[0] = VSIR_OP_ABS;
break;
case VKD3DSPSM_NEG:
new_opcode = data_type_is_integer(src->reg.data_type) ? VSIR_OP_INEG : VSIR_OP_NEG;
new_opcodes[0] = data_type_is_integer(src->reg.data_type) ? VSIR_OP_INEG : VSIR_OP_NEG;
break;
case VKD3DSPSM_ABSNEG:
new_opcodes[0] = VSIR_OP_ABS;
new_opcodes[1] = VSIR_OP_NEG;
break;
default:
continue;
}
if (new_opcode != VSIR_OP_NOP)
for (j = 0; j < 2 && new_opcodes[j] != VSIR_OP_NOP; ++j)
{
if (!(new_ins = vsir_program_iterator_insert_before(&it, &new_it, 1)))
return VKD3D_ERROR_OUT_OF_MEMORY;
ins = vsir_program_iterator_current(&it);
if (!vsir_instruction_init_with_params(program, new_ins, &ins->location, new_opcode, 1, 1))
if (!vsir_instruction_init_with_params(program, new_ins, &ins->location, new_opcodes[j], 1, 1))
{
vkd3d_shader_instruction_make_nop(new_ins);
return VKD3D_ERROR_OUT_OF_MEMORY;