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Squashed commit of the following: commit a0df0a0e86c55c1bdc0b9c0f5a739e5adef4b056 Author: Aaron Watry <awatry@gmail.com> Date: Mon Apr 15 18:42:04 2013 -0500 libclc: Rename clz.ll to clz_if.ll to ensure it gets built. configure.py treats files that have the same name with the .cl and .ll extensions as overriding eachother. E.g. If you have clz.cl and clz.ll both specified to be built in the same SOURCES file, only the first file listed will actually be built. Since the contents of clz.ll were an interface that is implemented in clz_impl.ll, rename clz.ll to clz_if.ll to make sure that the interface is built. commit 931b62bed05c58f737de625bd415af09571a6a5a Author: Aaron Watry <awatry@gmail.com> Date: Sat Apr 13 12:32:54 2013 -0500 libclc: llvm assembly implementation of clz Untested... currently crashes in the same manner as add_sat. commit 6ef0b7b0b6d2e5584086b4b9a9243743b2e0538f Author: Aaron Watry <awatry@gmail.com> Date: Sat Mar 23 12:35:27 2013 -0500 libclc: Add stub clz builtin For scalar int/uint, attempt to use the clz llvm builtin.. for all others return 0 until an actual implementation is finished. Patch by: Aaron Watry llvm-svn: 185004
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 --------- ./configure.py --with-llvm-config=/path/to/llvm-config && make Website ------- http://www.pcc.me.uk/~peter/libclc/