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vkd3d-shader/ir: Check that LOOP blocks are correctly nested.

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Giovanni Mascellani 2023-11-06 13:54:07 +01:00 committed by Alexandre Julliard
parent 2f7d52dba4
commit 92c36615ed
Notes: Alexandre Julliard 2023-11-07 22:40:09 +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/444
1 changed files with 17 additions and 0 deletions
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17
libs/vkd3d-shader/ir.c
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@ -1667,6 +1667,23 @@ static void vsir_validate_instruction(struct validation_context *ctx)
--ctx->depth;
break;
case VKD3DSIH_LOOP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
return;
ctx->blocks[ctx->depth++] = instruction->handler_idx;
break;
case VKD3DSIH_ENDLOOP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || ctx->blocks[ctx->depth - 1] != VKD3DSIH_LOOP)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ENDLOOP instruction doesn't terminate LOOP block.");
else
--ctx->depth;
break;
default:
break;
}