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vkd3d-shader/hlsl: Allow derefs to provide the data_type.

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After lowering the derefs path to a single offset node, there was no way
of knowing the type of the referenced part of the variable. This little
modification allows to avoid having to pass the data type everywhere and
it is required for supporting instructions that reference objects
components within struct types.

Since deref->data_type allows us to retrieve the type of the deref,
deref->offset_regset is no longer necessary.
This commit is contained in:
Francisco Casas
2023-05-29 17:34:03 -04:00
committed by Alexandre Julliard
parent d4b5e79c8b
commit ae6bc398d6
Notes: Alexandre Julliard 2023-07-17 23:25:21 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/209
4 changed files with 46 additions and 39 deletions
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14
libs/vkd3d-shader/hlsl_codegen.c
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@@ -97,6 +97,7 @@ static struct hlsl_ir_node *new_offset_from_path_index(struct hlsl_ctx *ctx, str
static struct hlsl_ir_node *new_offset_instr_from_deref(struct hlsl_ctx *ctx, struct hlsl_block *block,
const struct hlsl_deref *deref, const struct vkd3d_shader_location *loc)
{
enum hlsl_regset regset = hlsl_type_get_regset(deref->data_type);
struct hlsl_ir_node *offset = NULL;
struct hlsl_type *type;
unsigned int i;
@@ -111,7 +112,7 @@ static struct hlsl_ir_node *new_offset_instr_from_deref(struct hlsl_ctx *ctx, st
struct hlsl_block idx_block;
if (!(offset = new_offset_from_path_index(ctx, &idx_block, type, offset, deref->path[i].node,
deref->offset_regset, loc)))
regset, loc)))
return NULL;
hlsl_block_add_block(block, &idx_block);
@@ -126,7 +127,7 @@ static struct hlsl_ir_node *new_offset_instr_from_deref(struct hlsl_ctx *ctx, st
static bool replace_deref_path_with_offset(struct hlsl_ctx *ctx, struct hlsl_deref *deref,
struct hlsl_ir_node *instr)
{
const struct hlsl_type *type;
struct hlsl_type *type;
struct hlsl_ir_node *offset;
struct hlsl_block block;
@@ -145,7 +146,7 @@ static bool replace_deref_path_with_offset(struct hlsl_ctx *ctx, struct hlsl_der
return true;
}
deref->offset_regset = hlsl_type_get_regset(type);
deref->data_type = type;
if (!(offset = new_offset_instr_from_deref(ctx, &block, deref, &instr->loc)))
return false;
@@ -3931,6 +3932,7 @@ bool hlsl_regset_index_from_deref(struct hlsl_ctx *ctx, const struct hlsl_deref
bool hlsl_offset_from_deref(struct hlsl_ctx *ctx, const struct hlsl_deref *deref, unsigned int *offset)
{
struct hlsl_ir_node *offset_node = deref->offset.node;
enum hlsl_regset regset;
unsigned int size;
if (!offset_node)
@@ -3947,8 +3949,9 @@ bool hlsl_offset_from_deref(struct hlsl_ctx *ctx, const struct hlsl_deref *deref
return false;
*offset = hlsl_ir_constant(offset_node)->value.u[0].u;
regset = hlsl_type_get_regset(deref->data_type);
size = deref->var->data_type->reg_size[deref->offset_regset];
size = deref->var->data_type->reg_size[regset];
if (*offset >= size)
{
hlsl_error(ctx, &deref->offset.node->loc, VKD3D_SHADER_ERROR_HLSL_OFFSET_OUT_OF_BOUNDS,
@@ -3978,7 +3981,8 @@ struct hlsl_reg hlsl_reg_from_deref(struct hlsl_ctx *ctx, const struct hlsl_dere
struct hlsl_reg ret = var->regs[HLSL_REGSET_NUMERIC];
unsigned int offset = hlsl_offset_from_deref_safe(ctx, deref);
assert(deref->offset_regset == HLSL_REGSET_NUMERIC);
assert(deref->data_type);
assert(deref->data_type->class <= HLSL_CLASS_LAST_NUMERIC);
ret.id += offset / 4;