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vkd3d-shader/ir: Validate SWITCH_MONOLITHIC instructions.

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Giovanni Mascellani 2024-01-12 10:50:30 +01:00 committed by Alexandre Julliard
parent 46ebb404d7
commit af96730276
Notes: Alexandre Julliard 2024-01-18 23:21:17 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/570
1 changed files with 45 additions and 0 deletions
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45
libs/vkd3d-shader/ir.c
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@ -2921,6 +2921,51 @@ static void vsir_validate_instruction(struct validation_context *ctx)
}
break;
case VKD3DSIH_SWITCH_MONOLITHIC:
{
unsigned int case_count;
vsir_validate_cf_type(ctx, instruction, CF_TYPE_BLOCKS);
vsir_validate_dst_count(ctx, instruction, 0);
/* Parameters are source, default label, merge label and
* then pairs of constant value and case label. */
if (!vsir_validate_src_min_count(ctx, instruction, 3))
break;
if (instruction->src_count % 2 != 1)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_SOURCE_COUNT,
"Invalid source count %u for a monolithic SWITCH instruction, it must be an odd number.",
instruction->src_count);
if (!vsir_register_is_label(&instruction->src[1].reg))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_REGISTER_TYPE,
"Invalid default label register of type %#x in monolithic SWITCH instruction, expected LABEL.",
instruction->src[1].reg.type);
if (!vsir_register_is_label(&instruction->src[2].reg))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_REGISTER_TYPE,
"Invalid merge label register of type %#x in monolithic SWITCH instruction, expected LABEL.",
instruction->src[2].reg.type);
case_count = (instruction->src_count - 3) / 2;
for (i = 0; i < case_count; ++i)
{
unsigned int value_idx = 3 + 2 * i;
unsigned int label_idx = 3 + 2 * i + 1;
if (!register_is_constant(&instruction->src[value_idx].reg))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_REGISTER_TYPE,
"Invalid value register for case %zu of type %#x in monolithic SWITCH instruction, "
"expected IMMCONST or IMMCONST64.", i, instruction->src[value_idx].reg.type);
if (!vsir_register_is_label(&instruction->src[label_idx].reg))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_REGISTER_TYPE,
"Invalid label register for case %zu of type %#x in monolithic SWITCH instruction, "
"expected LABEL.", i, instruction->src[value_idx].reg.type);
}
break;
}
default:
break;
}