[Backport to 16][OCLToSPIRV] Translate floating-point atomic_compare_exchange as integer (#2668) #2679
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…exchange as integer (KhronosGroup#2668) OpenCL spec supports atomic_float/atomic_double type for atomic_compare_exchange* functions. However, value and return type in OpAtomicCompareExchange in SPIR-V spec must be integer type. Therefore, in OCLToSPIRV translation we need to translate floating-point type to corresponding integer variant that has the same type size. Floating-point value is bitcasted so that bits remain the same. (cherry picked from commit e554401)
MrSidims
approved these changes
Aug 26, 2024
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OpenCL spec supports atomic_float/atomic_double type for atomic_compare_exchange* functions. However, value and return type in OpAtomicCompareExchange in SPIR-V spec must be integer type. Therefore, in OCLToSPIRV translation we need to translate floating-point type to corresponding integer variant that has the same type size. Floating-point value is bitcasted so that bits remain the same.
(cherry picked from commit e554401)