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-Currently in aocl_gemm, gelu (both tanh and erf based) computation is only supported as a post-op as part of low precision gemm api call (done at micro-kernel level). However gelu computation alone without gemm is required in certain cases for users of aocl_gemm. -In order to support this, two new api's - aocl_gelu_tanh_f32 and aocl_gelu_erf_f32 are introduced as part of aocl_gemm. These api's computes element-wise gelu_tanh and gelu_erf respectively of a matrix/ vector of floats. Both the api's invokes ISA specific vectorized micro- kernels (vectorized only when incx=1), and a cntx based mechanism (similar to lpgemm_cntx) is used to dispatch to the appropriate kernel. AMD-Internal: [CPUPL-3218] Change-Id: Ifebbaf5566d7462288a9a67f479104268b0cc704