Merge branch 'upstream' into concedo_experimental

# Conflicts:
#	.github/workflows/build.yml
#	.github/workflows/docker.yml
#	README.md
#	build-xcframework.sh
#	common/CMakeLists.txt
#	examples/CMakeLists.txt
#	ggml/src/ggml-cpu/CMakeLists.txt
#	ggml/src/ggml-cuda/CMakeLists.txt
#	ggml/src/ggml-metal/ggml-metal.m
#	ggml/src/ggml-metal/ggml-metal.metal
#	ggml/src/ggml-sycl/CMakeLists.txt
#	ggml/src/ggml-sycl/backend.hpp
#	ggml/src/ggml-sycl/common.hpp
#	ggml/src/ggml-sycl/ggml-sycl.cpp
#	ggml/src/ggml-sycl/mmvq.cpp
#	ggml/src/ggml-sycl/vecdotq.hpp
#	scripts/compare-llama-bench.py
#	src/CMakeLists.txt
#	src/llama-model.cpp
#	src/llama.cpp
#	tests/test-backend-ops.cpp
#	tests/test-opt.cpp
#	tools/llama-bench/README.md
#	tools/llama-bench/llama-bench.cpp
#	tools/mtmd/CMakeLists.txt
#	tools/mtmd/README.md
#	tools/mtmd/clip.cpp
#	tools/rpc/rpc-server.cpp
#	tools/server/CMakeLists.txt
#	tools/server/README.md

tools/mtmd/llava.cpp

@@ -212,6 +212,7 @@ static bool clip_llava_handle_patches(clip_ctx * ctx_clip, std::vector<float *>
     ggml_build_forward_expand(gf, flatten);
 
     ggml_backend_ptr backend { ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_CPU, nullptr) };
+    GGML_ASSERT(backend != nullptr && "failed to initialize CPU backend");
     ggml_backend_graph_compute(backend.get(), gf);
 
     struct ggml_tensor* result = ggml_graph_node(gf, -1);