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The previous build system was adding custom "OpenCL" and "LLVM IR" languages in CMake to build the builtin libraries. This was making it harder to build in-tree because the tool binaries needed to be present at configure time. This commit refactors the build system to use custom commands to build the bytecode files one by one, and link them all together into the final bytecode library. It also enables in-tree builds by aliasing the clang/llvm-link/etc. tool targets to internal targets, which are imported from the LLVM installation directory when building out of tree. Diffing (with llvm-diff) all of the final bytecode libraries in an out-of-tree configuration against those built using the current tip system shows no changes. Note that there are textual changes to metadata IDs which confuse regular diff, and that llvm-diff 14 and below may show false-positives. This commit also removes a file listed in one of the SOURCEs which didn't exist and which was preventing the use of ENABLE_RUNTIME_SUBNORMAL when configuring CMake.
libclc ------ libclc is an open source, BSD licensed implementation of the library requirements of the OpenCL C programming language, as specified by the OpenCL 1.1 Specification. The following sections of the specification impose library requirements: * 6.1: Supported Data Types * 6.2.3: Explicit Conversions * 6.2.4.2: Reinterpreting Types Using as_type() and as_typen() * 6.9: Preprocessor Directives and Macros * 6.11: Built-in Functions * 9.3: Double Precision Floating-Point * 9.4: 64-bit Atomics * 9.5: Writing to 3D image memory objects * 9.6: Half Precision Floating-Point libclc is intended to be used with the Clang compiler's OpenCL frontend. libclc is designed to be portable and extensible. To this end, it provides generic implementations of most library requirements, allowing the target to override the generic implementation at the granularity of individual functions. libclc currently only supports the PTX target, but support for more targets is welcome. Compiling and installing with Make ---------------------------------- $ ./configure.py --with-llvm-config=/path/to/llvm-config && make $ make install Note you can use the DESTDIR Makefile variable to do staged installs. $ make install DESTDIR=/path/for/staged/install Compiling and installing with Ninja ----------------------------------- $ ./configure.py -g ninja --with-llvm-config=/path/to/llvm-config && ninja $ ninja install Note you can use the DESTDIR environment variable to do staged installs. $ DESTDIR=/path/for/staged/install ninja install Website ------- https://libclc.llvm.org/