1 files changed, 41 insertions, 0 deletions
diff --git a/third_party/intgemm/test/kernels/unquantize_test.cc b/third_party/intgemm/test/kernels/unquantize_test.cc
new file mode 100644
index 0000000000..edfafa5b2e
--- /dev/null
+++ b/third_party/intgemm/test/kernels/unquantize_test.cc
@@ -0,0 +1,41 @@
+#include "../test.h"
+#include "../../intgemm/aligned.h"
+#include "../../intgemm/kernels.h"
+
+#include <numeric>
+
+namespace intgemm {
+
+template <CPUType CPUType_>
+void kernel_unquantize_test() {
+  if (kCPU < CPUType_)
+    return;
+
+  using input_vec_t = vector_t<CPUType_, int>;
+  using output_vec_t = vector_t<CPUType_, float>;
+
+  AlignedVector<int> input(sizeof(input_vec_t) / sizeof(int));
+  AlignedVector<float> output(sizeof(output_vec_t) / sizeof(float));
+
+  std::iota(input.begin(), input.end(), 0);
+  auto unquant_mult = set1_ps<output_vec_t>(0.5f);
+
+  *output.template as<output_vec_t>() = kernels::unquantize(*input.template as<input_vec_t>(), unquant_mult);
+  for (std::size_t i = 0; i < output.size(); ++i)
+    CHECK(output[i] == i * 0.5f);
+}
+
+template INTGEMM_SSE2 void kernel_unquantize_test<CPUType::SSE2>();
+KERNEL_TEST_CASE("unquantize SSE2") { return kernel_unquantize_test<CPUType::SSE2>(); }
+
+#ifdef INTGEMM_COMPILER_SUPPORTS_AVX2
+template INTGEMM_AVX2 void kernel_unquantize_test<CPUType::AVX2>();
+KERNEL_TEST_CASE("unquantize AVX2") { return kernel_unquantize_test<CPUType::AVX2>(); }
+#endif
+
+#ifdef INTGEMM_COMPILER_SUPPORTS_AVX512BW
+template INTGEMM_AVX512BW void kernel_unquantize_test<CPUType::AVX512BW>();
+KERNEL_TEST_CASE("unquantize AVX512BW") { return kernel_unquantize_test<CPUType::AVX512BW>(); }
+#endif
+
+}