mlir_test_cblas.cpp
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//===- mlir_test_cblas.cpp - Simple Blas subset implementation ------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Simple Blas subset implementation.
//
//===----------------------------------------------------------------------===//
#include "include/mlir_test_cblas.h"
#include <assert.h>
extern "C" float mlir_test_cblas_sdot(const int N, const float *X,
const int incX, const float *Y,
const int incY) {
float res = 0.0f;
for (int i = 0; i < N; ++i)
res += X[i * incX] * Y[i * incY];
return res;
}
extern "C" void mlir_test_cblas_sgemm(
const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA,
const enum CBLAS_TRANSPOSE TransB, const int M, const int N, const int K,
const float alpha, const float *A, const int lda, const float *B,
const int ldb, const float beta, float *C, const int ldc) {
assert(Order == CBLAS_ORDER::CblasRowMajor);
assert(TransA == CBLAS_TRANSPOSE::CblasNoTrans);
assert(TransB == CBLAS_TRANSPOSE::CblasNoTrans);
for (int m = 0; m < M; ++m) {
auto *pA = A + m * lda;
auto *pC = C + m * ldc;
for (int n = 0; n < N; ++n) {
float c = pC[n];
float res = 0.0f;
for (int k = 0; k < K; ++k) {
auto *pB = B + k * ldb;
res += pA[k] * pB[n];
}
pC[n] = alpha * c + beta * res;
}
}
}