ggml-org/llama.cpp b10677

on GitHub

vulkan: fix missing view-alias dependencies in ggml_vk_graph_optimize (#27812)

• vulkan: fix missing view-alias dependencies in ggml_vk_graph_optimize

is_src_of doesn't treat two views of one tensor as dependent, so the optimizer reorders nodes across aliased reads and writes.

Result: silently wrong tokens under greedy decoding, different output on every server start, and invalid speculative-decoding acceptance, with nothing logged.

Hits Qwen3.8's recurrent state (and any model with view-aliased state) on AMD and NVIDIA Vulkan. CUDA is clean.

Compare view_src bases on both sides.

Fixes #27805

• vulkan: don't treat view/no-op nodes as aliasing dependencies

Nodes whose op is NONE, RESHAPE, TRANSPOSE, VIEW or PERMUTE execute nothing, so aliasing through them is not a real dependency. The previous base comparison matched them anyway, which only costs the optimizer reordering freedom.

Co-authored-by: Jeff Bolz jbolz@nvidia.com

• vulkan: make the lambda parameter const and capture is_empty in is_src_of

Code will not compile without these changes.
is_src_of has an empty capture list, so is_empty was not visible inside it, and is_empty took a non-const pointer, while is_src_of receives const ones. Other call sites pass non-const pointers, which still convert as usual.

Co-authored-by: Jeff Bolz jbolz@nvidia.com