The C++ compiler used to build prepare-builtins
may differ from the llvm/clang for which we are
building libclc.
Use 'clang++' as the default compiler.
Patch by: Jeroen Ketema
llvm-svn: 193220
There are two implementations of nextafter():
1. Using clang's __builtin_nextafter. Clang replaces this builtin with
a call to nextafter which is part of libm. Therefore, this
implementation will only work for targets with an implementation of
libm (e.g. most CPU targets).
2. The other implementation is written in OpenCL C. This function is
known internally as __clc_nextafter and can be used by targets that
don't have access to libm.
llvm-svn: 192383
libclc is ABI-agnostic, and $prefix/lib/pkgconfig causes issues
on multilib setups. Using $prefix/share/pkgconfig allows us to reuse
a single libclc build across all system ABIs.
Patch by: Michał Górny
llvm-svn: 190107
Targets can override generic implementations by adding a file called
OVERRIDES in $(TARGET_DIR)/lib and listing the generic implementations
that it wants to override. For example, to override get_group_id() and
get_global_size() you would add these lines to the OVERRIDES file:
workitem/get_group_id.cl
workitem/get_global_size.cl
llvm-svn: 184982
- First introducing a versioning scheme
- Add --libexecdir, --includedir and --pkgconfigdir and prefill them as well as --prefix
- Build all targets by default
- Create clc.pc and install it in $pkgconfigdir
- Use clang++ instead of c++
- Rename builtins.bc to built_libs/$triple.bc and install them in $libexecdir
- Includes are installed recursively to $includedir
- Finally add $(DESTDIR) for 'make install'
Patch by: Johannes Obermayr
llvm-svn: 184981
Tom Stellard