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vkd3d-shader/ir: Do not crash when registers cannot be resolved to signature elements.

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This commit is contained in:
Giovanni Mascellani
2025-06-20 16:23:25 +02:00
committed by Henri Verbeet
parent 5452e79a19
commit 3a4f95aca6
Notes: Henri Verbeet 2025-06-25 17:07:26 +02:00 
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1586
1 changed files with 11 additions and 5 deletions
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16
libs/vkd3d-shader/ir.c
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@@ -2359,6 +2359,7 @@ struct io_normaliser_register_data
struct io_normaliser
{
struct vkd3d_shader_message_context *message_context;
enum vkd3d_result result;
struct vkd3d_shader_instruction_array instructions;
enum vkd3d_shader_type shader_type;
uint8_t major;
@@ -2862,7 +2863,7 @@ static bool shader_dst_param_io_normalise(struct vkd3d_shader_dst_param *dst_par
}
static void shader_src_param_io_normalise(struct vkd3d_shader_src_param *src_param,
struct io_normaliser *normaliser)
struct io_normaliser *normaliser, struct vkd3d_shader_instruction *ins)
{
unsigned int i, id_idx, reg_idx, write_mask, element_idx, component_idx;
struct vkd3d_shader_register *reg = &src_param->reg;
@@ -2925,7 +2926,12 @@ static void shader_src_param_io_normalise(struct vkd3d_shader_src_param *src_par
id_idx = reg->idx_count - 1;
write_mask = VKD3DSP_WRITEMASK_0 << vsir_swizzle_get_component(src_param->swizzle, 0);
if (!shader_signature_find_element_for_reg(signature, reg_idx, write_mask, &element_idx))
vkd3d_unreachable();
{
vkd3d_shader_error(normaliser->message_context, &ins->location, VKD3D_SHADER_ERROR_VSIR_INVALID_SIGNATURE,
"Unable to resolve I/O register to a signature element.");
normaliser->result = VKD3D_ERROR_INVALID_SHADER;
return;
}
e = &signature->elements[element_idx];
if ((e->register_count > 1 || vsir_sysval_semantic_is_tess_factor(e->sysval_semantic)))
@@ -2962,7 +2968,7 @@ static void shader_instruction_normalise_io_params(struct vkd3d_shader_instructi
for (i = 0; i < ins->dst_count; ++i)
shader_dst_param_io_normalise(&ins->dst[i], normaliser);
for (i = 0; i < ins->src_count; ++i)
shader_src_param_io_normalise(&ins->src[i], normaliser);
shader_src_param_io_normalise(&ins->src[i], normaliser, ins);
break;
}
}
@@ -2970,7 +2976,7 @@ static void shader_instruction_normalise_io_params(struct vkd3d_shader_instructi
static enum vkd3d_result vsir_program_normalise_io_registers(struct vsir_program *program,
struct vsir_transformation_context *ctx)
{
struct io_normaliser normaliser = {ctx->message_context, program->instructions};
struct io_normaliser normaliser = {ctx->message_context, VKD3D_OK, program->instructions};
struct vkd3d_shader_instruction *ins;
enum vkd3d_result ret;
unsigned int i;
@@ -3025,7 +3031,7 @@ static enum vkd3d_result vsir_program_normalise_io_registers(struct vsir_program
program->instructions = normaliser.instructions;
program->use_vocp = normaliser.use_vocp;
program->normalisation_level = VSIR_NORMALISED_SM6;
return VKD3D_OK;
return normaliser.result;
}
struct flat_constant_def