Module: vkd3d Branch: master Commit: 5e3b8b70fce316716a99574eca5a8fb9ebdb7770 URL: https://source.winehq.org/git/vkd3d.git/?a=commit;h=5e3b8b70fce316716a99574e...
Author: Zebediah Figura zfigura@codeweavers.com Date: Fri Oct 15 16:54:07 2021 -0500
vkd3d-shader/hlsl: Use last_read for resource loads.
This fixes DCE.
Signed-off-by: Zebediah Figura zfigura@codeweavers.com Signed-off-by: Giovanni Mascellani gmascellani@codeweavers.com Signed-off-by: Matteo Bruni mbruni@codeweavers.com Signed-off-by: Henri Verbeet hverbeet@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
libs/vkd3d-shader/hlsl.h | 1 - libs/vkd3d-shader/hlsl_codegen.c | 14 +++++++------- 2 files changed, 7 insertions(+), 8 deletions(-)
diff --git a/libs/vkd3d-shader/hlsl.h b/libs/vkd3d-shader/hlsl.h index 31b7ddb..93191e5 100644 --- a/libs/vkd3d-shader/hlsl.h +++ b/libs/vkd3d-shader/hlsl.h @@ -240,7 +240,6 @@ struct hlsl_ir_var uint32_t is_output_semantic : 1; uint32_t is_uniform : 1; uint32_t is_param : 1; - uint32_t has_resource_access : 1; };
struct hlsl_ir_function diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c index bf93a03..b7b0cd1 100644 --- a/libs/vkd3d-shader/hlsl_codegen.c +++ b/libs/vkd3d-shader/hlsl_codegen.c @@ -591,6 +591,8 @@ static void compute_liveness_recurse(struct list *instrs, unsigned int loop_firs
LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry) { + const unsigned int var_last_read = loop_last ? max(instr->index, loop_last) : instr->index; + switch (instr->type) { case HLSL_IR_STORE: @@ -628,7 +630,7 @@ static void compute_liveness_recurse(struct list *instrs, unsigned int loop_firs struct hlsl_ir_load *load = hlsl_ir_load(instr);
var = load->src.var; - var->last_read = max(var->last_read, loop_last ? max(instr->index, loop_last) : instr->index); + var->last_read = max(var->last_read, var_last_read); if (load->src.offset.node) load->src.offset.node->last_read = instr->index; break; @@ -645,7 +647,8 @@ static void compute_liveness_recurse(struct list *instrs, unsigned int loop_firs { struct hlsl_ir_resource_load *load = hlsl_ir_resource_load(instr);
- load->resource.var->has_resource_access = 1; + var = load->resource.var; + var->last_read = max(var->last_read, var_last_read); if (load->resource.offset.node) load->resource.offset.node->last_read = instr->index; load->coords.node->last_read = instr->index; @@ -676,10 +679,7 @@ static void compute_liveness(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl LIST_FOR_EACH_ENTRY(scope, &ctx->scopes, struct hlsl_scope, entry) { LIST_FOR_EACH_ENTRY(var, &scope->vars, struct hlsl_ir_var, scope_entry) - { var->first_write = var->last_read = 0; - var->has_resource_access = 0; - } }
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry) @@ -1203,7 +1203,7 @@ static const struct hlsl_ir_var *get_reserved_texture(struct hlsl_ctx *ctx, uint
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, const struct hlsl_ir_var, extern_entry) { - if (var->has_resource_access && var->reg_reservation.type == 't' && var->reg_reservation.index == index) + if (var->last_read && var->reg_reservation.type == 't' && var->reg_reservation.index == index) return var; } return NULL; @@ -1216,7 +1216,7 @@ static void allocate_textures(struct hlsl_ctx *ctx)
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry) { - if (!var->has_resource_access || var->data_type->type != HLSL_CLASS_OBJECT + if (!var->last_read || var->data_type->type != HLSL_CLASS_OBJECT || var->data_type->base_type != HLSL_TYPE_TEXTURE) continue;