pytorch

25fe2798 - Fix signed-unsigned warnings (#36196)

Fix signed-unsigned warnings (#36196) Summary: Otherwise, while bazel spews following multi-line warning for every single caffe2 operator: ``` In file included from ./c10/util/logging_is_google_glog.h:50, from ./c10/util/Logging.h:26, from ./caffe2/core/logging.h:2, from ./caffe2/core/blob.h:13, from ./caffe2/core/operator.h:18, from ./caffe2/sgd/adadelta_op.h:1, from caffe2/sgd/adadelta_op.cc:1: bazel-out/k8-fastbuild/bin/external/com_github_glog/_virtual_includes/glog/glog/logging.h: In instantiation of 'std::string* google::Check_LTImpl(const T1&, const T2&, const char*) [with T1 = int; T2 = long unsigned int; std::string = std::__cxx11::basic_string<char>]': ./caffe2/core/operator.h:192:5: required from 'const T& caffe2::OperatorBase::Input(int, caffe2::DeviceType) [with T = caffe2::Tensor; caffe2::DeviceType = c10::DeviceType]' ./caffe2/core/operator.h:890:48: required from 'const caffe2::Tensor& caffe2::Operator<Context>::Input(int, caffe2::DeviceType) [with Context = caffe2::CPUContext; caffe2::DeviceType = c10::DeviceType]' ./caffe2/sgd/adadelta_op.h:87:5: required from 'bool caffe2::SparseAdadeltaOp<Context>::RunOnDevice() [with Context = caffe2::CPUContext]' ./caffe2/sgd/adadelta_op.h:85:8: required from here bazel-out/k8-fastbuild/bin/external/com_github_glog/_virtual_includes/glog/glog/logging.h:722:32: warning: comparison of integer expressions of different signedness: 'const int' and 'const long unsigned int' [-Wsign-compare] 722 | DEFINE_CHECK_OP_IMPL(Check_LT, < ) | ^ bazel-out/k8-fastbuild/bin/external/com_github_glog/_virtual_includes/glog/glog/logging.h:148:53: note: in definition of macro 'GOOGLE_PREDICT_TRUE' 148 | #define GOOGLE_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1)) | ^ bazel-out/k8-fastbuild/bin/external/com_github_glog/_virtual_includes/glog/glog/logging.h:722:1: note: in expansion of macro 'DEFINE_CHECK_OP_IMPL' 722 | DEFINE_CHECK_OP_IMPL(Check_LT, < ) | ^~~~~~~~~~~~~~~~~~~~ ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/36196 Differential Revision: D20909696 Pulled By: malfet fbshipit-source-id: 16723355f473379ba9da6d3c33bd561b9724800a