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[rocRAND] Update HIP vector accesses in rocrand #126

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Merged
umfranzw merged 1 commit into from
Jun 2, 2025
Merged

[rocRAND] Update HIP vector accesses in rocrand #126

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26 changes: 26 additions & 0 deletions projects/rocrand/library/include/rocrand/rocrand_common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,32 @@
#define ROCRAND_DEPRECATED(msg)
#endif

// This is an accessor macro for HIP vector types (eg. int2, float4, etc.).
// Prior to HIP 7.0, individual elements could be accessed through the
// data member:
//
// int2 vec;
// vec.data[0] = 1;
//
// Beginning with HIP 7.0, the data member is hidden, and individual
// elements must be accessed like this:
//
// int2 vec;
// vec[0] = 1;
//
// You can use the macro like this:
//
// int2 vec;
// ROCRAND_HIPVEC_ACCESS(vec)[0];
//
#if defined(__HIP_PLATFORM_AMD__)
#if HIP_VERSION_MAJOR < 7
#define ROCRAND_HIPVEC_ACCESS(x) x.data
#else
#define ROCRAND_HIPVEC_ACCESS(x) x
#endif
#endif

namespace rocrand_device {
namespace detail {

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2 changes: 1 addition & 1 deletion projects/rocrand/library/include/rocrand/rocrand_philox4x32_10.h
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Expand Up @@ -172,7 +172,7 @@ class philox4x32_10_engine
__forceinline__ __device__ __host__ unsigned int next()
{
#if defined(__HIP_PLATFORM_AMD__)
unsigned int ret = m_state.result.data[m_state.substate];
unsigned int ret = ROCRAND_HIPVEC_ACCESS(m_state.result)[m_state.substate];
#else
unsigned int ret = (&m_state.result.x)[m_state.substate];
#endif
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2 changes: 1 addition & 1 deletion projects/rocrand/library/include/rocrand/rocrand_threefry2_impl.h
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Expand Up @@ -138,7 +138,7 @@ class threefry_engine2_base
__forceinline__ __device__ __host__ value next()
{
#if defined(__HIP_PLATFORM_AMD__)
value ret = m_state.result.data[m_state.substate];
value ret = ROCRAND_HIPVEC_ACCESS(m_state.result)[m_state.substate];
#else
value ret = (&m_state.result.x)[m_state.substate];
#endif
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2 changes: 1 addition & 1 deletion projects/rocrand/library/include/rocrand/rocrand_threefry4_impl.h
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Expand Up @@ -153,7 +153,7 @@ class threefry_engine4_base
__forceinline__ __device__ __host__ value next()
{
#if defined(__HIP_PLATFORM_AMD__)
value ret = m_state.result.data[m_state.substate];
value ret = ROCRAND_HIPVEC_ACCESS(m_state.result)[m_state.substate];
#else
value ret = (&m_state.result.x)[m_state.substate];
#endif
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