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This commits moves all OpenCL builtins under a top-level 'opencl'
directory, akin to how the CLC builtins are organized. This new
structure aims to better convey the separation of the two layers and
that 'CLC' is not a subset of OpenCL or a libclc target.
In doing so this commit moves the location of the 'lib' directory to
match CLC: libclc/generic/lib/ becomes libclc/opencl/lib/generic/. This
allows us to remove some special casing in CMake and ensure a common
directory structure.
It also tries to better communicate that the OpenCL headers are
libclc-specific OpenCL headers and should not be confused with or used
as standard OpenCL headers. It does so by ensuring includes are of the
form <clc/opencl/*>. It might be that we don't specifically need the
libclc OpenCL headers and we simply could use clang's built-in
declarations, but we can revisit that later.
Aside from the code move, there is some code formatting and updating a
couple of OpenCL builtin includes to use the readily available gentype
helpers. This allows us to remove some '.inc' files.
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This commit bulk updates all '.h', '.cl', '.inc', and '.cpp' files to
add any missing license headers.
The remaining files are generally CMake, SOURCES, scripts, markdown,
etc.
There are still some '.ll' files which may benefit from a license
header. I can't find an example of an LLVM IR file with a license header
in the rest of LLVM, but unlike most other (sub)projects, libclc has
examples of LLVM IR as source files, compiled and built into the
library.
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Using the `__builtin_elementwise_(add|sub)_sat` functions allows us to
directly optimize to the desired intrinsic, and avoid scalarization for
vector types.
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reviewer: Tom Stellard
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 314702
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v2: - use quotes instead of <>
- add include to r600/lib/math/nextafter.c changed
Reviewed-by: Tom Stellard <tom@stellard.net>
Reviewed-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 211576
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llvm-svn: 161311
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llvm-svn: 147756
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