From: Conor McCarthy cmccarthy@codeweavers.com
--- libs/vkd3d-shader/d3d_asm.c | 1 + libs/vkd3d-shader/dxil.c | 235 ++++++++++++++++++++++- libs/vkd3d-shader/spirv.c | 7 +- libs/vkd3d-shader/vkd3d_shader_private.h | 6 + 4 files changed, 245 insertions(+), 4 deletions(-)
diff --git a/libs/vkd3d-shader/d3d_asm.c b/libs/vkd3d-shader/d3d_asm.c index 5685fe4d4..38f051312 100644 --- a/libs/vkd3d-shader/d3d_asm.c +++ b/libs/vkd3d-shader/d3d_asm.c @@ -242,6 +242,7 @@ static const char * const shader_opcode_names[] = [VKD3DSIH_NRM ] = "nrm", [VKD3DSIH_OR ] = "or", [VKD3DSIH_PHASE ] = "phase", + [VKD3DSIH_PHI ] = "phi", [VKD3DSIH_POW ] = "pow", [VKD3DSIH_RCP ] = "rcp", [VKD3DSIH_REP ] = "rep", diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c index f54af4c3b..0cdd9c5cb 100644 --- a/libs/vkd3d-shader/dxil.c +++ b/libs/vkd3d-shader/dxil.c @@ -472,6 +472,20 @@ struct sm6_symbol const char *name; };
+struct incoming_value +{ + const struct sm6_block *block; + struct vkd3d_shader_register reg; +}; + +struct sm6_phi +{ + struct vkd3d_shader_register reg; + struct incoming_value *incoming; + size_t incoming_capacity; + size_t incoming_count; +}; + enum sm6_block_terminator_type { TERMINATOR_UNCOND_BR, @@ -496,6 +510,10 @@ struct sm6_block /* A nonzero id. */ unsigned int id;
+ struct sm6_phi *phi; + size_t phi_capacity; + size_t phi_count; + struct sm6_block_terminator terminator; };
@@ -1968,6 +1986,11 @@ static bool sm6_value_is_icb(const struct sm6_value *value) return value->value_type == VALUE_TYPE_ICB; }
+static bool sm6_value_is_ssa(const struct sm6_value *value) +{ + return sm6_value_is_register(value) && register_is_ssa(&value->u.reg); +} + static inline unsigned int sm6_value_get_constant_uint(const struct sm6_value *value) { if (!sm6_value_is_constant(value)) @@ -3053,6 +3076,26 @@ static struct sm6_block *sm6_block_create() return block; }
+static struct sm6_phi *sm6_block_phi_require_space(struct sm6_block *block, struct sm6_parser *sm6) +{ + struct sm6_phi *phi; + + if (!vkd3d_array_reserve((void **)&block->phi, &block->phi_capacity, block->phi_count + 1, sizeof(*block->phi))) + { + ERR("Failed to allocate phi array.\n"); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_OUT_OF_MEMORY, + "Out of memory allocating a phi instruction."); + return NULL; + } + phi = &block->phi[block->phi_count++]; + + phi->incoming = NULL; + phi->incoming_capacity = 0; + phi->incoming_count = 0; + + return phi; +} + static void sm6_parser_emit_alloca(struct sm6_parser *sm6, const struct dxil_record *record, struct vkd3d_shader_instruction *ins, struct sm6_value *dst) { @@ -4364,6 +4407,102 @@ static void sm6_parser_emit_load(struct sm6_parser *sm6, const struct dxil_recor instruction_dst_param_init_ssa_scalar(ins, sm6); }
+static int phi_incoming_compare(const void *a, const void *b) +{ + const struct incoming_value *incoming_a = a, *incoming_b = b; + + return (incoming_a->block > incoming_b->block) - (incoming_a->block < incoming_b->block); +} + +static void sm6_parser_emit_phi(struct sm6_parser *sm6, const struct dxil_record *record, + struct sm6_function *function, struct sm6_block *code_block, struct vkd3d_shader_instruction *ins, + struct sm6_value *dst) +{ + struct incoming_value *incoming; + const struct sm6_type *type; + struct sm6_phi *phi; + unsigned int i, j; + uint64_t src_idx; + + if (!(record->operand_count & 1)) + { + WARN("Invalid operand count %u.\n", record->operand_count); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_INVALID_OPERAND_COUNT, + "Invalid operand count %u for phi instruction.", record->operand_count); + return; + } + + if (!(type = sm6_parser_get_type(sm6, record->operands[0]))) + return; + if (!sm6_type_is_numeric(type)) + { + /* dxc doesn't seem to use buffer/resource read return types here. */ + FIXME("Only scalar numeric types are supported.\n"); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_INVALID_OPERAND_COUNT, + "Result type class %u of a phi instruction is not scalar numeric.", type->class); + return; + } + + dst->type = type; + register_init_ssa_scalar(&dst->u.reg, type, sm6); + + if (!(phi = sm6_block_phi_require_space(code_block, sm6))) + return; + phi->reg = dst->u.reg; + phi->incoming_count = record->operand_count / 2u; + + if (!vkd3d_array_reserve((void **)&phi->incoming, &phi->incoming_capacity, phi->incoming_count, + sizeof(*phi->incoming))) + { + ERR("Failed to allocate phi incoming array.\n"); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_OUT_OF_MEMORY, + "Out of memory allocating a phi incoming array."); + return; + } + incoming = phi->incoming; + + for (i = 1; i < record->operand_count; i += 2) + { + src_idx = sm6->value_count - decode_rotated_signed_value(record->operands[i]); + /* May be a forward reference. */ + if (src_idx >= sm6->cur_max_value) + { + WARN("Invalid value index %"PRIu64".\n", src_idx); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_INVALID_OPERAND, + "Invalid value index %"PRIu64" for a phi incoming value.", src_idx); + return; + } + + j = i / 2u; + /* Store the value index in the register for later resolution. */ + incoming[j].reg.idx[0].offset = src_idx; + incoming[j].block = sm6_function_get_block(function, record->operands[i + 1], sm6); + } + + ins->handler_idx = VKD3DSIH_NOP; + + qsort(incoming, phi->incoming_count, sizeof(*incoming), phi_incoming_compare); + + for (i = 1, j = 1; i < phi->incoming_count; ++i) + { + if (incoming[i].block != incoming[i - 1].block) + { + incoming[j++] = incoming[i]; + continue; + } + + if (incoming[i].reg.idx[0].offset != incoming[i - 1].reg.idx[0].offset) + { + WARN("PHI conflict.\n"); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_INVALID_OPERAND, + "Two phi incomings have the same block but different values."); + } + } + /* if (j == 1) we should be able to set dst->u.reg to incoming[0].reg, but structurisation + * may potentially add new incomings. */ + phi->incoming_count = j; +} + static void sm6_parser_emit_ret(struct sm6_parser *sm6, const struct dxil_record *record, struct sm6_block *code_block, struct vkd3d_shader_instruction *ins) { @@ -4744,6 +4883,45 @@ static struct sm6_block *sm6_function_create_block(struct sm6_function *function return block; }
+static enum vkd3d_result sm6_function_resolve_phi_incomings(const struct sm6_function *function, + struct sm6_parser *sm6) +{ + const struct sm6_block *block; + size_t i, j, block_idx; + + for (block_idx = 0; block_idx < function->block_count; ++block_idx) + { + block = function->blocks[block_idx]; + + for (i = 0; i < block->phi_count; ++i) + { + struct sm6_phi *phi = &block->phi[i]; + const struct sm6_value *src; + + for (j = 0; j < phi->incoming_count; ++j) + { + src = &sm6->values[phi->incoming[j].reg.idx[0].offset]; + if (!sm6_value_is_constant(src) && !sm6_value_is_undef(src) && !sm6_value_is_ssa(src)) + { + FIXME("PHI incoming value is not a constant or SSA register.\n"); + vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_INVALID_OPERAND, + "A PHI incoming value is not a constant or SSA register."); + return VKD3D_ERROR_INVALID_SHADER; + } + if (src->u.reg.data_type != phi->reg.data_type) + { + WARN("Type mismatch.\n"); + vkd3d_shader_parser_warning(&sm6->p, VKD3D_SHADER_WARNING_DXIL_TYPE_MISMATCH, + "The type of a phi incoming value does not match the result type."); + } + phi->incoming[j].reg = src->u.reg; + } + } + } + + return VKD3D_OK; +} + static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const struct dxil_block *block, struct sm6_function *function) { @@ -4860,6 +5038,9 @@ static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const case FUNC_CODE_INST_LOAD: sm6_parser_emit_load(sm6, record, ins, dst); break; + case FUNC_CODE_INST_PHI: + sm6_parser_emit_phi(sm6, record, function, code_block, ins, dst); + break; case FUNC_CODE_INST_RET: sm6_parser_emit_ret(sm6, record, code_block, ins); is_terminator = true; @@ -4902,7 +5083,7 @@ static enum vkd3d_result sm6_parser_function_init(struct sm6_parser *sm6, const return VKD3D_ERROR_INVALID_SHADER; }
- return VKD3D_OK; + return sm6_function_resolve_phi_incomings(function, sm6); }
static void sm6_block_emit_terminator(const struct sm6_block *block, struct sm6_parser *sm6) @@ -4942,6 +5123,44 @@ static void sm6_block_emit_terminator(const struct sm6_block *block, struct sm6_ } }
+static void sm6_block_emit_phi(const struct sm6_block *block, struct sm6_parser *sm6) +{ + struct vkd3d_shader_instruction *ins; + unsigned int i, j, incoming_count; + const struct sm6_phi *src_phi; + + for (i = 0; i < block->phi_count; ++i) + { + struct vkd3d_shader_src_param *src_params; + struct vkd3d_shader_dst_param *dst_param; + + src_phi = &block->phi[i]; + incoming_count = src_phi->incoming_count; + + ins = sm6_parser_add_instruction(sm6, VKD3DSIH_PHI); + if (!(src_params = instruction_src_params_alloc(ins, incoming_count * 2u, sm6))) + return; + if (!(dst_param = instruction_dst_params_alloc(ins, 1, sm6))) + return; + + for (j = 0; j < incoming_count; ++j) + { + const struct sm6_block *incoming_block = src_phi->incoming[j].block; + unsigned int index = j * 2; + + src_param_init(&src_params[index]); + src_params[index].reg = src_phi->incoming[j].reg; + if (incoming_block) + vsir_src_param_init_label(&src_params[index + 1], incoming_block->id); + else + assert(sm6->p.failed); + } + + dst_param_init(dst_param); + dst_param->reg = src_phi->reg; + } +} + static enum vkd3d_result sm6_parser_module_init(struct sm6_parser *sm6, const struct dxil_block *block, unsigned int level) { @@ -5022,13 +5241,14 @@ static enum vkd3d_result sm6_function_emit_blocks(const struct sm6_function *fun const struct sm6_block *block = function->blocks[i];
/* Space for the label and terminator. */ - if (!sm6_parser_require_space(sm6, block->instruction_count + 2)) + if (!sm6_parser_require_space(sm6, block->instruction_count + block->phi_count + 2)) { vkd3d_shader_parser_error(&sm6->p, VKD3D_SHADER_ERROR_DXIL_OUT_OF_MEMORY, "Out of memory emitting shader instructions."); return VKD3D_ERROR_OUT_OF_MEMORY; } sm6_parser_emit_label(sm6, block->id); + sm6_block_emit_phi(block, sm6);
memcpy(&sm6->p.instructions.elements[sm6->p.instructions.count], block->instructions, block->instruction_count * sizeof(*block->instructions)); @@ -6089,9 +6309,19 @@ static void sm6_symtab_cleanup(struct sm6_symbol *symbols, size_t count) vkd3d_free(symbols); }
+static void sm6_phi_destroy(struct sm6_phi *phi) +{ + vkd3d_free(phi->incoming); +} + static void sm6_block_destroy(struct sm6_block *block) { + unsigned int i; + vkd3d_free(block->instructions); + for (i = 0; i < block->phi_count; ++i) + sm6_phi_destroy(&block->phi[i]); + vkd3d_free(block->phi); vkd3d_free(block); }
@@ -6389,7 +6619,6 @@ static enum vkd3d_result sm6_parser_init(struct sm6_parser *sm6, const uint32_t }
sm6->p.shader_desc.ssa_count = sm6->ssa_next_id; - sm6->p.shader_desc.block_count = 1;
if (!(fn = sm6_parser_get_function(sm6, sm6->entry_point))) { diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c index 5798f262c..74db0c453 100644 --- a/libs/vkd3d-shader/spirv.c +++ b/libs/vkd3d-shader/spirv.c @@ -3852,7 +3852,12 @@ static uint32_t spirv_compiler_emit_load_ssa_reg(struct spirv_compiler *compiler
ssa = spirv_compiler_get_ssa_register_info(compiler, reg); val_id = ssa->id; - assert(val_id); + if (!val_id) + { + /* Should only be from a missing instruction implementation. */ + assert(compiler->failed); + return 0; + } assert(vkd3d_swizzle_is_scalar(swizzle));
if (reg->dimension == VSIR_DIMENSION_SCALAR) diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h index 8c5955d3d..63242b650 100644 --- a/libs/vkd3d-shader/vkd3d_shader_private.h +++ b/libs/vkd3d-shader/vkd3d_shader_private.h @@ -436,6 +436,7 @@ enum vkd3d_shader_opcode VKD3DSIH_NRM, VKD3DSIH_OR, VKD3DSIH_PHASE, + VKD3DSIH_PHI, VKD3DSIH_POW, VKD3DSIH_RCP, VKD3DSIH_REP, @@ -1199,6 +1200,11 @@ static inline bool vsir_register_is_label(const struct vkd3d_shader_register *re return reg->type == VKD3DSPR_LABEL; }
+static inline bool register_is_ssa(const struct vkd3d_shader_register *reg) +{ + return reg->type == VKD3DSPR_SSA; +} + struct vkd3d_shader_param_node { struct vkd3d_shader_param_node *next;