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vkd3d-shader/hlsl: Don't forbid first base type cast on var assignments.

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This commit is contained in:
Francisco Casas
2025-01-21 03:00:12 -03:00
committed by Henri Verbeet
parent 0a15ab702f
commit 4d18fb39b6
Notes: Henri Verbeet 2025-01-22 15:04:09 +01:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1350
3 changed files with 19 additions and 16 deletions
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19
libs/vkd3d-shader/hlsl.y
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@@ -2099,11 +2099,12 @@ static bool invert_swizzle_matrix(const struct hlsl_matrix_swizzle *swizzle,
}
static bool add_assignment(struct hlsl_ctx *ctx, struct hlsl_block *block, struct hlsl_ir_node *lhs,
enum parse_assign_op assign_op, struct hlsl_ir_node *rhs)
enum parse_assign_op assign_op, struct hlsl_ir_node *rhs, bool is_function_out_arg)
{
struct hlsl_type *lhs_type = lhs->data_type;
unsigned int writemask = 0, width = 0;
bool matrix_writemask = false;
bool first_cast = true;
if (lhs->data_type->class == HLSL_CLASS_ERROR || rhs->data_type->class == HLSL_CLASS_ERROR)
{
@@ -2149,7 +2150,7 @@ static bool add_assignment(struct hlsl_ctx *ctx, struct hlsl_block *block, struc
hlsl_fixme(ctx, &cast->loc, "Size change on the LHS.");
return false;
}
if (hlsl_version_ge(ctx, 4, 0))
if (hlsl_version_ge(ctx, 4, 0) && (!is_function_out_arg || !first_cast))
{
hlsl_error(ctx, &cast->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_LVALUE,
"Base type casts are not allowed on the LHS for profiles >= 4.");
@@ -2159,6 +2160,8 @@ static bool add_assignment(struct hlsl_ctx *ctx, struct hlsl_block *block, struc
lhs_type = lhs->data_type;
if (lhs_type->class == HLSL_CLASS_VECTOR || (lhs_type->class == HLSL_CLASS_MATRIX && matrix_writemask))
lhs_type = hlsl_get_vector_type(ctx, lhs->data_type->e.numeric.type, width);
first_cast = false;
}
else if (lhs->type == HLSL_IR_SWIZZLE)
{
@@ -2370,7 +2373,7 @@ static bool add_increment(struct hlsl_ctx *ctx, struct hlsl_block *block, bool d
return false;
hlsl_block_add_instr(block, one);
if (!add_assignment(ctx, block, lhs, decrement ? ASSIGN_OP_SUB : ASSIGN_OP_ADD, one))
if (!add_assignment(ctx, block, lhs, decrement ? ASSIGN_OP_SUB : ASSIGN_OP_ADD, one, false))
return false;
if (post)
@@ -3272,7 +3275,7 @@ static struct hlsl_ir_node *add_user_call(struct hlsl_ctx *ctx,
return NULL;
hlsl_block_add_instr(args->instrs, &load->node);
if (!add_assignment(ctx, args->instrs, arg, ASSIGN_OP_ASSIGN, &load->node))
if (!add_assignment(ctx, args->instrs, arg, ASSIGN_OP_ASSIGN, &load->node, true))
return NULL;
}
}
@@ -5457,7 +5460,7 @@ static bool intrinsic_interlocked(struct hlsl_ctx *ctx, enum hlsl_interlocked_op
hlsl_error(ctx, &orig_val->loc, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST,
"Output argument to '%s' is const.", name);
if (!add_assignment(ctx, params->instrs, orig_val, ASSIGN_OP_ASSIGN, interlocked))
if (!add_assignment(ctx, params->instrs, orig_val, ASSIGN_OP_ASSIGN, interlocked, true))
return false;
}
@@ -6394,7 +6397,7 @@ static bool add_assignment_from_component(struct hlsl_ctx *ctx, struct hlsl_bloc
if (!(load = hlsl_add_load_component(ctx, instrs, src, component, loc)))
return false;
if (!add_assignment(ctx, instrs, dest, ASSIGN_OP_ASSIGN, load))
if (!add_assignment(ctx, instrs, dest, ASSIGN_OP_ASSIGN, load, false))
return false;
return true;
@@ -6550,7 +6553,7 @@ static bool add_getdimensions_method_call(struct hlsl_ctx *ctx, struct hlsl_bloc
return false;
hlsl_block_add_instr(block, sample_info);
if (!add_assignment(ctx, block, args[ARG_SAMPLE_COUNT], ASSIGN_OP_ASSIGN, sample_info))
if (!add_assignment(ctx, block, args[ARG_SAMPLE_COUNT], ASSIGN_OP_ASSIGN, sample_info, false))
return false;
}
@@ -9839,7 +9842,7 @@ assignment_expr:
hlsl_error(ctx, &@2, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression.");
hlsl_block_add_block($3, $1);
destroy_block($1);
if (!add_assignment(ctx, $3, lhs, $2, rhs))
if (!add_assignment(ctx, $3, lhs, $2, rhs, false))
YYABORT;
$$ = $3;
}