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Added support for cl_ext_float_atomics in CBasicTestFetchAdd with atomic_half (#2350)

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Related to https://github.com/KhronosGroup/OpenCL-CTS/issues/2142,
according to the work plan, extending CBasicTestFetchAdd with support
for atomic_half.

I wasn't able to test that PR completely due to missing
`CL_DEVICE_LOCAL_FP_ATOMIC_ADD_EXT`/`CL_DEVICE_GLOBAL_FP_ATOMIC_ADD_EXT`
capabilities for atomic_half. I appreciate reviewers' attention, thanks.
This commit is contained in:
Marcin Hajder
2025-10-22 16:01:48 +02:00
committed by GitHub
parent 79d98433cc
commit 62972418c3
2 changed files with 123 additions and 15 deletions
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13
test_conformance/c11_atomics/host_atomics.h
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@@ -99,7 +99,16 @@ template <typename AtomicType, typename CorrespondingType>
CorrespondingType host_atomic_fetch_add(volatile AtomicType *a, CorrespondingType c,
TExplicitMemoryOrderType order)
{
if constexpr (
if constexpr (std::is_same_v<AtomicType, HOST_ATOMIC_HALF>)
{
static std::mutex mx;
std::lock_guard<std::mutex> lock(mx);
CorrespondingType old_value = *a;
*a = cl_half_from_float((cl_half_to_float(*a) + cl_half_to_float(c)),
gHalfRoundingMode);
return old_value;
}
else if constexpr (
std::is_same_v<
AtomicType,
HOST_ATOMIC_FLOAT> || std::is_same_v<AtomicType, HOST_ATOMIC_DOUBLE>)
@@ -112,7 +121,7 @@ CorrespondingType host_atomic_fetch_add(volatile AtomicType *a, CorrespondingTyp
}
else
{
#if defined( _MSC_VER ) || (defined( __INTEL_COMPILER ) && defined(WIN32))
#if defined(_MSC_VER) || (defined(__INTEL_COMPILER) && defined(WIN32))
return InterlockedExchangeAdd(a, c);
#elif defined(__GNUC__)
return __sync_fetch_and_add(a, c);