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1f3c9ba9f1
OpenCL C lang says that trunc rounds towards zero. llvm.trunc.* intrinsic rounds to integer not larger in magnitude. These definitions are equivalent. Patch by: Jan Vesely Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> llvm-svn: 197769
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/