1 files changed, 105 insertions, 0 deletions
diff --git a/mlir/test/mlir-cpu-runner/cblas_interface.cpp b/mlir/test/mlir-cpu-runner/cblas_interface.cpp
new file mode 100644
index 00000000000..5e3a00e7fd1
--- /dev/null
+++ b/mlir/test/mlir-cpu-runner/cblas_interface.cpp
@@ -0,0 +1,105 @@
+//===- cblas_interface.cpp - Simple Blas subset interface -----------------===//
+//
+// Part of the MLIR 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 interface implementation.
+//
+//===----------------------------------------------------------------------===//
+
+#include "include/cblas.h"
+#include <assert.h>
+#include <iostream>
+
+extern "C" void linalg_fill_viewf32_f32(StridedMemRefType<float, 0> *X,
+                                        float f) {
+  X->data[X->offset] = f;
+}
+
+extern "C" void linalg_fill_viewsxf32_f32(StridedMemRefType<float, 1> *X,
+                                          float f) {
+  for (unsigned i = 0; i < X->sizes[0]; ++i)
+    *(X->data + X->offset + i * X->strides[0]) = f;
+}
+
+extern "C" void linalg_fill_viewsxsxf32_f32(StridedMemRefType<float, 2> *X,
+                                            float f) {
+  for (unsigned i = 0; i < X->sizes[0]; ++i)
+    for (unsigned j = 0; j < X->sizes[1]; ++j)
+      *(X->data + X->offset + i * X->strides[0] + j * X->strides[1]) = f;
+}
+
+extern "C" void linalg_copy_viewf32_viewf32(StridedMemRefType<float, 0> *I,
+                                            StridedMemRefType<float, 0> *O) {
+  O->data[O->offset] = I->data[I->offset];
+}
+
+extern "C" void
+linalg_copy_viewsxf32_viewsxf32(StridedMemRefType<float, 1> *I,
+                                StridedMemRefType<float, 1> *O) {
+  if (I->sizes[0] != O->sizes[0]) {
+    std::cerr << "Incompatible strided memrefs\n";
+    printMemRefMetaData(std::cerr, *I);
+    printMemRefMetaData(std::cerr, *O);
+    return;
+  }
+  for (unsigned i = 0; i < I->sizes[0]; ++i)
+    O->data[O->offset + i * O->strides[0]] =
+        I->data[I->offset + i * I->strides[0]];
+}
+
+extern "C" void
+linalg_copy_viewsxsxf32_viewsxsxf32(StridedMemRefType<float, 2> *I,
+                                    StridedMemRefType<float, 2> *O) {
+  if (I->sizes[0] != O->sizes[0] || I->sizes[1] != O->sizes[1]) {
+    std::cerr << "Incompatible strided memrefs\n";
+    printMemRefMetaData(std::cerr, *I);
+    printMemRefMetaData(std::cerr, *O);
+    return;
+  }
+  auto so0 = O->strides[0], so1 = O->strides[1];
+  auto si0 = I->strides[0], si1 = I->strides[1];
+  for (unsigned i = 0; i < I->sizes[0]; ++i)
+    for (unsigned j = 0; j < I->sizes[1]; ++j)
+      O->data[O->offset + i * so0 + j * so1] =
+          I->data[I->offset + i * si0 + j * si1];
+}
+
+extern "C" void
+linalg_dot_viewsxf32_viewsxf32_viewf32(StridedMemRefType<float, 1> *X,
+                                       StridedMemRefType<float, 1> *Y,
+                                       StridedMemRefType<float, 0> *Z) {
+  if (X->strides[0] != 1 || Y->strides[0] != 1 || X->sizes[0] != Y->sizes[0]) {
+    std::cerr << "Incompatible strided memrefs\n";
+    printMemRefMetaData(std::cerr, *X);
+    printMemRefMetaData(std::cerr, *Y);
+    printMemRefMetaData(std::cerr, *Z);
+    return;
+  }
+  Z->data[Z->offset] +=
+      cblas_sdot(X->sizes[0], X->data + X->offset, X->strides[0],
+                 Y->data + Y->offset, Y->strides[0]);
+}
+
+extern "C" void linalg_matmul_viewsxsxf32_viewsxsxf32_viewsxsxf32(
+    StridedMemRefType<float, 2> *A, StridedMemRefType<float, 2> *B,
+    StridedMemRefType<float, 2> *C) {
+  if (A->strides[1] != B->strides[1] || A->strides[1] != C->strides[1] ||
+      A->strides[1] != 1 || A->sizes[0] < A->strides[1] ||
+      B->sizes[0] < B->strides[1] || C->sizes[0] < C->strides[1] ||
+      C->sizes[0] != A->sizes[0] || C->sizes[1] != B->sizes[1] ||
+      A->sizes[1] != B->sizes[0]) {
+    printMemRefMetaData(std::cerr, *A);
+    printMemRefMetaData(std::cerr, *B);
+    printMemRefMetaData(std::cerr, *C);
+    return;
+  }
+  cblas_sgemm(CBLAS_ORDER::CblasRowMajor, CBLAS_TRANSPOSE::CblasNoTrans,
+              CBLAS_TRANSPOSE::CblasNoTrans, C->sizes[0], C->sizes[1],
+              A->sizes[1], 1.0f, A->data + A->offset, A->strides[0],
+              B->data + B->offset, B->strides[0], 1.0f, C->data + C->offset,
+              C->strides[0]);
+}