This is with latest beignet (commit fc410ee2d6138bac821fe20a0d35c3b283244071) and the patch mentioned in https://bugs.freedesktop.org/show_bug.cgi?id=93625.

I built beignet with adddress sanitizer support (-fsanitize=address) and then in the utests/ directory ran

$ . setenv.sh
$ ./utest_run

At the end of that test, several memory leaks (direct and indirect) are reported.

Here are some examples of beignet memory leaks:

=================================================================
==12727==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 262144 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b196a in malloc (/lib64/libasan.so.2+0x9896a)
    #1 0x7f688502191c in image_1D_buffer() /home/fd/git/beignet/utests/image_1D_buffer.cpp:7

Direct leak of 119280 byte(s) in 2485 object(s) allocated from:
    #0 0x7f68854b2872 in operator new(unsigned long) (/lib64/libasan.so.2+0x99872)
    #1 0x7f687c0aca8a in gbe::PrintfParser::runOnFunction(llvm::Function&) /home/fd/git/beignet/backend/src/llvm/llvm_printf_parser.cpp:543
    #2 0x7f687d0c38d1 in llvm::FPPassManager::runOnFunction(llvm::Function&) (/home/fd/git/beignet/build/backend/src/libgbe.so+0x15958d1)

Direct leak of 8192 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b196a in malloc (/lib64/libasan.so.2+0x9896a)
    #1 0x7f6885024314 in compare_image_2d_and_1d_array /home/fd/git/beignet/utests/compare_image_2d_and_1d_array.cpp:20

Direct leak of 8192 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b196a in malloc (/lib64/libasan.so.2+0x9896a)
    #1 0x7f6885024323 in compare_image_2d_and_1d_array /home/fd/git/beignet/utests/compare_image_2d_and_1d_array.cpp:21

Direct leak of 7952 byte(s) in 36 object(s) allocated from:
    #0 0x7f68854b1b09 in __interceptor_calloc (/lib64/libasan.so.2+0x98b09)
    #1 0x7f68848fa245 in cl_calloc /home/fd/git/beignet/src/cl_alloc.c:54

Direct leak of 2737 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b196a in malloc (/lib64/libasan.so.2+0x9896a)
    #1 0x7f6884fb8238 in runtime_compile_link() /home/fd/git/beignet/utests/runtime_compile_link.cpp:82
    #2 0x7f68850e489f  (/home/fd/git/beignet/build/utests/libutests.so+0x54f89f)

Direct leak of 2048 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b1b09 in __interceptor_calloc (/lib64/libasan.so.2+0x98b09)
    #1 0x7f68850256b0 in compiler_fill_image_1d_array /home/fd/git/beignet/utests/compiler_fill_image_1d_array.cpp:34
    #2 0x7fff5ce299af  (<unknown module>)

Direct leak of 732 byte(s) in 1 object(s) allocated from:
    #0 0x7f68854b196a in malloc (/lib64/libasan.so.2+0x9896a)
    #1 0x7f6884cca8cf in enqueue_built_in_kernels() /home/fd/git/beignet/utests/enqueue_built_in_kernels.cpp:12
    #2 0x7f6885047617  (/home/fd/git/beignet/build/utests/libutests.so+0x4b2617)