diff --git a/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn.hpp b/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn.hpp
index fc2b245148..72905ce47a 100644
--- a/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn.hpp
+++ b/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn.hpp
@@ -39,8 +39,8 @@ void device_implicit_gemm_convolution_1_chwn_csrk_khwn(InDesc,
 
     Tensor<T> wei_csrk(make_TensorDescriptor(wei_csrk_desc));
 
-    auto f_reorder_kcsr2csrk = [&](auto k, auto c, auto s, auto r) {
-        wei_csrk(c, s, r, k) = wei_kcsr(k, c, s, r);
+    auto f_reorder_kcsr2csrk = [&](auto k, auto c, auto y, auto x) {
+        wei_csrk(c, y, x, k) = wei_kcsr(k, c, y, x);
     };
 
     make_ParallelTensorFunctor(f_reorder_kcsr2csrk, K, C, Y, X)(
diff --git a/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hpp b/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hpp
index db0cb3aa90..de18deefc6 100644
--- a/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hpp
+++ b/driver/device_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hpp
@@ -41,8 +41,8 @@ void device_implicit_gemm_convolution_1_chwn_csrk_khwn_padded(InDesc,
 
     Tensor<T> wei_csrk(make_TensorDescriptor(wei_csrk_desc));
 
-    auto f_reorder_kcsr2csrk = [&](auto k, auto c, auto s, auto r) {
-        wei_csrk(c, s, r, k) = wei_kcsr(k, c, s, r);
+    auto f_reorder_kcsr2csrk = [&](auto k, auto c, auto y, auto x) {
+        wei_csrk(c, y, x, k) = wei_kcsr(k, c, y, x);
     };
 
     make_ParallelTensorFunctor(f_reorder_kcsr2csrk, K, C, Y, X)(
diff --git a/driver/device_implicit_gemm_convolution_2_chwn_csrk_khwn.hpp b/driver/device_implicit_gemm_convolution_2_chwn_csrk_khwn.hpp
index 88fd5a2dea..db7802902d 100644
--- a/driver/device_implicit_gemm_convolution_2_chwn_csrk_khwn.hpp
+++ b/driver/device_implicit_gemm_convolution_2_chwn_csrk_khwn.hpp
@@ -55,7 +55,7 @@ void device_implicit_gemm_convolution_2_chwn_csrk_khwn(InDesc,
     Tensor<T> wei_csrk(make_TensorDescriptor(wei_csrk_desc));
 
     make_ParallelTensorFunctor(
-        [&](auto k, auto c, auto s, auto r) { wei_csrk(c, s, r, k) = wei_kcsr(k, c, s, r); },
+        [&](auto k, auto c, auto y, auto x) { wei_csrk(c, y, x, k) = wei_kcsr(k, c, y, x); },
         K,
         C,
         Y,
diff --git a/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn.hip.hpp b/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn.hip.hpp
index b5e810cfd5..a6cb6f60e1 100644
--- a/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn.hip.hpp
+++ b/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn.hip.hpp
@@ -204,12 +204,12 @@ gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn(const Float* const __restric
         __syncthreads();
 
         // a series of batched GEMM
-        for(unsigned s = 0; s < Y; ++s)
+        for(unsigned y = 0; y < Y; ++y)
         {
-            for(unsigned r = 0; r < X; ++r)
+            for(unsigned x = 0; x < X; ++x)
             {
-                blockwise_batch_gemm.Run(p_wei_block + wei_csrk_block_desc.Get1dIndex(0, s, r, 0),
-                                         p_in_block + in_chwn_block_desc.Get1dIndex(0, s, r, 0),
+                blockwise_batch_gemm.Run(p_wei_block + wei_csrk_block_desc.Get1dIndex(0, y, x, 0),
+                                         p_in_block + in_chwn_block_desc.Get1dIndex(0, y, x, 0),
                                          p_out_thread,
                                          [](auto& acc, const auto&& v) { acc += v; });
             }
diff --git a/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hip.hpp b/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hip.hpp
index 5f14fc3373..7f6d54143b 100644
--- a/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hip.hpp
+++ b/src/include/gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn_padded.hip.hpp
@@ -245,14 +245,14 @@ __global__ void gridwise_implicit_gemm_convolution_1_chwn_csrk_khwn_padded(
         __syncthreads();
 
         // a series of batched GEMM
-        for(unsigned s = 0; s < Y; ++s)
+        for(unsigned y = 0; y < Y; ++y)
         {
-            for(unsigned r = 0; r < X; ++r)
+            for(unsigned x = 0; x < X; ++x)
             {
                 auto f_accum = [](auto& acc, const auto&& v) { acc += v; };
 
-                blockwise_batch_gemm.Run(p_wei_block + wei_csrk_block_desc.Get1dIndex(0, s, r, 0),
-                                         p_in_block + in_chwn_block_desc.Get1dIndex(0, s, r, 0),
+                blockwise_batch_gemm.Run(p_wei_block + wei_csrk_block_desc.Get1dIndex(0, y, x, 0),
+                                         p_in_block + in_chwn_block_desc.Get1dIndex(0, y, x, 0),
                                          p_out_thread,
                                          f_accum);
             }
diff --git a/src/include/gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_buffer.hip.hpp b/src/include/gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_buffer.hip.hpp
index eba1d09675..b6498f8175 100644
--- a/src/include/gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_buffer.hip.hpp
+++ b/src/include/gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_buffer.hip.hpp
@@ -275,9 +275,9 @@ __global__ void gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_b
 
         // compute on current data
         //   a series of GEMM
-        for(unsigned s = 0; s < Y; ++s)
+        for(unsigned y = 0; y < Y; ++y)
         {
-            for(unsigned r = 0; r < X; ++r)
+            for(unsigned x = 0; x < X; ++x)
             {
                 auto f_accum = [](auto& acc, const auto&& v) { acc += v; };
 #if 1
@@ -285,8 +285,8 @@ __global__ void gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_b
 #else
                 blockwise_gemm.Run_RegisterDoubleBuffer
 #endif
-                    (p_wei_block_now + wei_csrk_block_desc.Get1dIndex(0, s, r, 0),
-                     p_in_block_now + s * Wi + r,
+                    (p_wei_block_now + wei_csrk_block_desc.Get1dIndex(0, y, x, 0),
+                     p_in_block_now + y * Wi + x,
                      p_out_thread,
                      f_accum);
             }
@@ -305,9 +305,9 @@ __global__ void gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_b
 
         __syncthreads();
 
-        for(unsigned s = 0; s < Y; ++s)
+        for(unsigned y = 0; y < Y; ++y)
         {
-            for(unsigned r = 0; r < X; ++r)
+            for(unsigned x = 0; x < X; ++x)
             {
                 auto f_accum = [](auto& acc, const auto&& v) { acc += v; };
 #if 0
@@ -315,8 +315,8 @@ __global__ void gridwise_implicit_gemm_convolution_2_chwn_csrk_khwn_lds_double_b
 #else
                 blockwise_gemm.Run_RegisterDoubleBuffer
 #endif
-                (p_wei_block_now + wei_csrk_block_desc.Get1dIndex(0, s, r, 0),
-                 p_in_block_now + s * Wi + r,
+                (p_wei_block_now + wei_csrk_block_desc.Get1dIndex(0, y, x, 0),
+                 p_in_block_now + y * Wi + x,
                  p_out_thread,
                  f_accum);
             }
diff --git a/src/include/tensor.hpp b/src/include/tensor.hpp
index 09ac224007..d0c785c16e 100644
--- a/src/include/tensor.hpp
+++ b/src/include/tensor.hpp
@@ -8,16 +8,16 @@
 #include <iostream>
 
 template <class Range>
-std::ostream& LogRange(std::ostream& os, Range&& r, std::string delim)
+std::ostream& LogRange(std::ostream& os, Range&& range, std::string delim)
 {
     bool first = true;
-    for(auto&& x : r)
+    for(auto&& v : range)
     {
         if(first)
             first = false;
         else
             os << delim;
-        os << x;
+        os << v;
     }
     return os;
 }
diff --git a/src/include/threadwise_direct_convolution.hip.hpp b/src/include/threadwise_direct_convolution.hip.hpp
index 04ea7b1506..32d446491b 100644
--- a/src/include/threadwise_direct_convolution.hip.hpp
+++ b/src/include/threadwise_direct_convolution.hip.hpp
@@ -38,16 +38,16 @@ __device__ void threadwise_direct_convolution_1(InDesc,
                 {
                     for(unsigned c = 0; c < wei_desc.GetLength(I1); ++c)
                     {
-                        for(unsigned s = 0; s < wei_desc.GetLength(I2); ++s)
+                        for(unsigned y = 0; y < wei_desc.GetLength(I2); ++y)
                         {
-                            for(unsigned r = 0; r < wei_desc.GetLength(I3); ++r)
+                            for(unsigned x = 0; x < wei_desc.GetLength(I3); ++x)
                             {
-                                const unsigned hi = ho + s;
-                                const unsigned wi = wo + r;
+                                const unsigned hi = ho + y;
+                                const unsigned wi = wo + x;
 
                                 const unsigned in_index = in_desc.Get1dIndex(n, c, hi, wi);
 
-                                const unsigned wei_index = wei_desc.Get1dIndex(k, c, s, r);
+                                const unsigned wei_index = wei_desc.Get1dIndex(k, c, y, x);
 
                                 const unsigned out_index = out_desc.Get1dIndex(n, k, ho, wo);
 
@@ -153,18 +153,18 @@ __device__ void threadwise_direct_convolution_3(InDesc,
 #if 0
     // this verison reused old input data in register, and read new data from LDS
     // loop over vertical direction
-    for(unsigned s = 0; s < wei_desc.GetLength(I2); ++s)
+    for(unsigned y = 0; y < wei_desc.GetLength(I2); ++y)
     {
         // read first input
         threadwise_4d_tensor_copy(in_desc,
-                                  p_in + in_desc.Get1dIndex(0, 0, s, 0),
+                                  p_in + in_desc.Get1dIndex(0, 0, y, 0),
                                   in_reg_desc,
                                   p_in_reg,
                                   in_reg_desc.GetLengths());
 
         // read first 1x1 weight
         threadwise_4d_tensor_copy(wei_desc,
-                                  p_wei + wei_desc.Get1dIndex(0, 0, s, 0),
+                                  p_wei + wei_desc.Get1dIndex(0, 0, y, 0),
                                   wei_reg_desc,
                                   p_wei_reg,
                                   wei_reg_desc.GetLengths());
@@ -174,11 +174,11 @@ __device__ void threadwise_direct_convolution_3(InDesc,
             in_reg_desc, p_in_reg, wei_reg_desc, p_wei_reg, out_desc, p_out);
 
         // loop over horizontal direction
-        for(unsigned r = 1; r < wei_desc.GetLength(I3); ++r)
+        for(unsigned x = 1; x < wei_desc.GetLength(I3); ++x)
         {
             // read new weight
             threadwise_4d_tensor_copy(wei_desc,
-                                      p_wei + wei_desc.Get1dIndex(0, 0, s, r),
+                                      p_wei + wei_desc.Get1dIndex(0, 0, y, x),
                                       wei_reg_desc,
                                       p_wei_reg,
                                       wei_reg_desc.GetLengths());
@@ -189,7 +189,7 @@ __device__ void threadwise_direct_convolution_3(InDesc,
             // read new input
             threadwise_4d_tensor_copy(
                 in_desc,
-                p_in + in_desc.Get1dIndex(0, 0, s, r + in_reg_desc.GetLength(I3) - 1),
+                p_in + in_desc.Get1dIndex(0, 0, y, x + in_reg_desc.GetLength(I3) - 1),
                 in_reg_desc,
                 p_in_reg +
                     in_reg_desc.Get1dIndex(0, 0, 0, in_reg_desc.GetLength(I3) - in_w_new_read),
@@ -203,21 +203,21 @@ __device__ void threadwise_direct_convolution_3(InDesc,
 #elif 1
     // this version read all input from LDS when filter moves
     // loop over vertical direction
-    for(unsigned s = 0; s < wei_desc.GetLength(I2); ++s)
+    for(unsigned y = 0; y < wei_desc.GetLength(I2); ++y)
     {
         // loop over horizontal direction
-        for(unsigned r = 0; r < wei_desc.GetLength(I3); ++r)
+        for(unsigned x = 0; x < wei_desc.GetLength(I3); ++x)
         {
             // read new weight
             threadwise_4d_tensor_copy(wei_desc,
-                                      p_wei + wei_desc.Get1dIndex(0, 0, s, r),
+                                      p_wei + wei_desc.Get1dIndex(0, 0, y, x),
                                       wei_reg_desc,
                                       p_wei_reg,
                                       wei_reg_desc.GetLengths());
 
             // read new input
             threadwise_4d_tensor_copy(in_desc,
-                                      p_in + in_desc.Get1dIndex(0, 0, s, r),
+                                      p_in + in_desc.Get1dIndex(0, 0, y, x),
                                       in_reg_desc,
                                       p_in_reg,
                                       in_reg_desc.GetLengths());