Giovanni Mascellani (@giomasce) commented about libs/vkd3d-shader/hlsl_constant_ops.c:
+static bool fold_rsq(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type, + const struct hlsl_ir_constant *src, const struct vkd3d_shader_location *loc) +{ + enum hlsl_base_type type = dst_type->base_type; + unsigned int k; + + assert(type == src->node.data_type->base_type); + + for (k = 0; k < dst_type->dimx; ++k) + { + switch (type) + { + case HLSL_TYPE_FLOAT: + case HLSL_TYPE_HALF: + if (ctx->profile->major_version >= 4 && src->value.u[k].f < 0.0f)
The second half looks wrong, the same checks are done inside the block. -- https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/368#note_46934