Refactor the __device__ versions of memset and memcpy to be less awkward i.e. not return nullptr as opposed to the destination pointer (it can only be assumed it was done for maximum confusion) and actually unroll as they claim to. Change all of the {to, from}Symbol functions to use hipModuleGetGlobal, as opposed to hc::accelerator::get_symbol_address which is no longer valid with module based dispatch.

src/hip_memory.cpp

@@ -715,7 +715,10 @@ hipError_t hipMemcpyToSymbol(const void* symbolName, const void *src, size_t cou
 
     hc::accelerator acc = ctx->getDevice()->_acc;
 
-    void *dst = acc.get_symbol_address((const char*) symbolName);
+    hipDeviceptr_t dst = nullptr;
+    size_t byte_cnt = 0u;
+    auto status = hipModuleGetGlobal(
+        &dst, &byte_cnt, 0, static_cast<const char*>(symbolName));
     tprintf(DB_MEM, " symbol '%s' resolved to address:%p\n", symbolName, dst);
 
     if(dst == nullptr)
@@ -750,7 +753,10 @@ hipError_t hipMemcpyFromSymbol(void* dst, const void* symbolName, size_t count,
 
     hc::accelerator acc = ctx->getDevice()->_acc;
 
-    void *src = acc.get_symbol_address((const char*) symbolName);
+    hipDeviceptr_t src = nullptr;
+    size_t byte_cnt = 0u;
+    auto status = hipModuleGetGlobal(
+        &src, &byte_cnt, 0, static_cast<const char*>(symbolName));
     tprintf(DB_MEM, " symbol '%s' resolved to address:%p\n", symbolName, dst);
 
     if(dst == nullptr)
@@ -787,7 +793,10 @@ hipError_t hipMemcpyToSymbolAsync(const void* symbolName, const void *src, size_
 
     hc::accelerator acc = ctx->getDevice()->_acc;
 
-    void *dst = acc.get_symbol_address((const char*) symbolName);
+    hipDeviceptr_t dst = nullptr;
+    size_t byte_cnt = 0u;
+    auto status = hipModuleGetGlobal(
+        &dst, &byte_cnt, 0, static_cast<const char*>(symbolName));
     tprintf(DB_MEM, " symbol '%s' resolved to address:%p\n", symbolName, dst);
 
     if(dst == nullptr)
@@ -825,7 +834,10 @@ hipError_t hipMemcpyFromSymbolAsync(void* dst, const void* symbolName, size_t co
 
     hc::accelerator acc = ctx->getDevice()->_acc;
 
-    void *src = acc.get_symbol_address((const char*) symbolName);
+    hipDeviceptr_t src = nullptr;
+    size_t byte_cnt = 0u;
+    auto status = hipModuleGetGlobal(
+        &src, &byte_cnt, 0, static_cast<const char*>(symbolName));
     tprintf(DB_MEM, " symbol '%s' resolved to address:%p\n", symbolName, src);
 
     if(src == nullptr || dst == nullptr)
@@ -1171,9 +1183,9 @@ namespace
     __global__
     void hip_fill_n(RandomAccessIterator f, N n, T value)
     {
-        const uint32_t grid_dim = hipGridDim_x;
+        const uint32_t grid_dim = gridDim.x * blockDim.x;
 
-        size_t idx = hipBlockIdx_x * block_dim + hipThreadIdx_x;
+        size_t idx = blockIdx.x * block_dim + threadIdx.x;
         while (idx < n) {
             new (&f[idx]) T{value};
             idx += grid_dim;