Tidy fixes

src/include/migraphx/hash.hpp

@@ -16,7 +16,7 @@ std::size_t hash_value(const T& v)
 template <class T>
 void hash_combine(std::size_t& seed, const T& v)
 {
-    seed ^= hash_value(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
+    seed ^= hash_value(v) + 0x9e3779b9 + (seed << 6u) + (seed >> 2u);
 }
 
 } // namespace MIGRAPHX_INLINE_NS

src/include/migraphx/value.hpp

@@ -489,7 +489,7 @@ struct hash<migraphx::value>
 {
     using argument_type = migraphx::value;
     using result_type   = std::size_t;
-    result_type operator()(const migraphx::value& x) const noexcept { return x.hash(); }
+    result_type operator()(const migraphx::value& x) const { return x.hash(); }
 };
 
 } // namespace std

src/targets/gpu/device/multinomial.cpp

@@ -75,7 +75,7 @@ void multinomial(hipStream_t stream,
                         auto idx       = output.get_shape().multi(i);
                         auto cdf_begin = cdf.begin() + (idx.front() * class_size);
                         auto cdf_end   = cdf_begin + class_size;
-                        auto sample_iter =
+                        auto* sample_iter =
                             upper_bound(cdf_begin, cdf_end, dist[i] * *(std::prev(cdf_end)));
                         output[i] = std::distance(cdf_begin, sample_iter);
                     });