This makes it possible for runtime implementations to disable
subnormal handling at runtime.
When this flag is enabled, decisions about how to handle subnormals
in the library will be controlled by an external variable called
__CLC_SUBNORMAL_DISABLE.
Function implementations should use these new helpers for querying subnormal
support:
__clc_fp16_subnormals_supported();
__clc_fp32_subnormals_supported();
__clc_fp64_subnormals_supported();
In order for the library to link correctly with this feature,
users will be required to either:
1. Insert this variable into the module (if using the LLVM/Clang C++/C APIs).
2. Pass either subnormal_disable.bc or subnormal_use_default.bc to the
linker. These files are distributed with liblclc and installed to
$(installdir). e.g.:
llvm-link -o kernel-out.bc kernel.bc builtins-nosubnormal.bc subnormal_disable.bc
or
llvm-link -o kernel-out.bc kernel.bc builtins-nosubnormal.bc subnormal_use_default.bc
If you do not supply the --enable-runtime-subnormal then the library
behaves the same as it did before this commit.
In addition to these changes, the patch adds helper functions that
should be used when implementing library functions that need
special handling for denormals:
__clc_fp16_subnormals_supported();
__clc_fp32_subnormals_supported();
__clc_fp64_subnormals_supported();
llvm-svn: 235329
This is a generic implementation which just calls sqrt. Targets should
override this if they want a faster implementation.
v2:
- Alphabetize SOURCES
llvm-svn: 232965
This implementation was ported from the AMD builtin library
and has been tested with piglit, OpenCV, and the ocl conformance tests.
v2:
- Remove unnecessary copyright.
llvm-svn: 232964
We need to reinterpret float/double types as uint/ulong in order to
perform the bitwise operations.
This has been tested with piglit, OpenCV, and the ocl conformance tests.
v2:
- Use vector operations rather than splitting vectors into scalar
components.
Reviewed-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 231373
It has been part of the common functions since 1.0
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 231137
Ported from the libclc/amd-builtins branch
v2: Rename sincos_f_piby4 to __libclc__sincosf_piby4
Add cospi(double) implementation instead of using llvm.cos
Notes:
The sincosD_piby4.h file is mostly the same as the builtin implementation
released by AMD. The inline attribute declaration is changed, and M_PI is
used instead of a constant double. Otherwise, the only difference is that
the header explicitly enables the fp64 pragma.
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Jeroen Ketema <j.ketema@imperial.ac.uk>
CC: Tom Stellard <tom@stellard.net>
CC: Matt Arsenault <Matthew.Arsenault@amd.com>
llvm-svn: 230641
Some functions are implemented using hand-written LLVM IR, and
LLVM assembly format is allowed to change between versions, so we
should require a specific version of LLVM.
llvm-svn: 225041
Including a standard or system header isn't allowed in OpenCL.
The type "size_t" needs to be explicitely defined now.
v2: Use __SIZE_TYPE__ instead of unsigned int.
v3: Define ptrdiff_t and NULL.
Patch-by: Jean-Sébastien Pédron
Reviewed-by: Jeroen Ketema
Reviewed-by: Jan Vesely
llvm-svn: 222235
v2: Fix function declaration
Add range metadata to r600 implementation
v3: change prefix to AMDGPU
Reviewed-by: Tom Stellard <tom@stellard.net>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 219793
This is a simple implementation which just copies data synchronously.
v2:
- Use size_t.
v3:
- Fix possible race condition by splitting the copy among multiple
work items.
llvm-svn: 219008
We were missing the local versions of the atom_* before
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 217911
Uses the algorithm:
tan(x) = sin(x) / sqrt(1-sin^2(x))
An alternative is:
tan(x) = sin(x) / cos(x)
Which produces more verbose bitcode and longer assembly.
Either way, the generated bitcode seems pretty nasty and a more optimized
but still precise-enough solution is welcome.
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 217511
Passes the tests that were submitted to the piglit list
Tested on R600 (Pitcairn)
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 217509
This was previously implemented with a macro and we were using
__builtin_copysign(), which takes double inputs for the float
version of copysign().
Reviewed-and-Tested-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 217045
v2: use space instead of '=' to make Mac happy
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Jeroen Ketema <j.ketema@imperial.ac.uk>
llvm-svn: 216922
These were missing and caused mad24/mul24 with int3/uint3 arg type to fail
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 216321
This generates bitcode which is indistinguishable from what was
hand-written for int32 types in v[load|store]_impl.ll.
v4: Use vec2+scalar for vec3 load/stores to prevent corruption (per Tom)
v3: Also remove unused generic/lib/shared/v[load|store]_impl.ll
v2: (Per Matt Arsenault) Fix alignment issues with vector load stores
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
CC: Matt Arsenault <Matthew.Arsenault@amd.com>
CC: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 216069
These were present in CL 1.0, just not implemented yet.
v2: Use hex values and fix commit message
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Jeroen Ketema <j.ketema@imperial.ac.uk>
CC: Matt Arsenault <Matthew.Arsenault@amd.com>
llvm-svn: 213321
Vector true is -1, not 1, which means we need to use the relational unary
macro instead of the normal unary builtin one.
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 213316
relational.h includes relational macros for defining functions which need to
return 1 for scalar true and -1 for vector true.
I believe that this is the only place that this behavior is required, so the
macro is placed at its lowest useful level (same directory as it is used in).
This also creates re-usable unary/binary declaration and floatn includes which
should simplify relational builtin declarations.
Mostly patterned off of include/math/[binary_decl|unary_decl|floatn].inc
but with required changes for relational functions.
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 213315
Otherwise the test evaluates to true on OpenCL 1.1 and earlier. Since we
therefore cannot use the CL_VERSION_?_? macros move them to the proper
position in the top-level header.
llvm-svn: 211787
The vector components were mistakenly using () instead of {}, which caused
all but the last vector component to be dropped on the floor.
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Jeroen Ketema <j.ketema@imperial.ac.uk>
llvm-svn: 211733
v2 Changes:
- use __builtin_signbit instead of shifting by hand
- significantly improve vector shuffling
- Works correctly now for signbit(float16) on radeonsi
Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 211696
These are apparently only defined in OpenCL 1.2.
HALF_MAX, HALF_MIN and HALF_EPSILON are currently omitted. Clang does
not seem to support the ‘h’ suffix for half float constants even with
the cl_khr_fp16 extension enabled.
Reviewed-by: Tom Sellard <tom@stellard.net>
llvm-svn: 211579
Add these out-of-order in clc.h so we can use these in other headers.
v2: Take into account the lack of a definition in OpenCL 1.0
Reviewed-by: Tom Stellard <tom@stellard.net>
llvm-svn: 211578
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
v3: change __builtin_nanf() to __builtin_nanf("")
This doesn't work yet, but it was agreed to commit as-is with the logic
that "broken" is better than "completely missing" and this should be
fixed in clang.
v2: use __builtin_inff() and also add nan/huge_val definitions
Signed-off-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 211065
Use separate implementations instead of a macro
to ensure the constant multiplied with is of
higher precision.
v2: Use the correct formula, spotted by Dan Liew <daniel.liew@imperial.ac.uk>
Reviewed-by: Aaron Warty <awatry@gmail.com>
Reviewed-by: Tom Stellard <tom@stellard.net>
llvm-svn: 210891
We use ${DESTDIR} syntax now instead of $(DESTDIR) because that syntax
works both is the shell (at least it does for bash) and for make (at
least it does for GNU Make)
Patch By: Dan Liew
llvm-svn: 200414
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
Some function definitions were using _CLC_DECL, which meant that they
weren't being marked as always_inline.
Reviewed-by and Tested-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 193754
This will prevent LLVM optimization passes from creating illegal uses
of the barrier() intrinsic (e.g. calling barrier() from a conditional
that is not executed by all threads).
llvm-svn: 193753
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
Tom Stellard