printf bug

Author: scchan

printf_bug/printf_bug.cpp

@@ -0,0 +1,41 @@
+#include <cstdio>
+#include "hip/hip_runtime.h"
+
+class b {
+public:
+    __host__ __device__
+    b(uint32_t i) : v(i) {
+    }
+    uint32_t v;
+};
+
+class bd: public b {
+public:
+    __host__ __device__
+    bd(uint32_t i) : b(i), bd_v(i + 1000) {
+        printf("%s, %u, %u\n", 
+        __PRETTY_FUNCTION__, v, bd_v);
+    }
+    uint32_t bd_v;
+};
+
+extern "C"
+__global__ void k(void* buffer) {
+    new(buffer) bd(1000);
+}
+
+int main() {
+
+#if 0
+    printf("CPU:\n");
+    bd cpu(1000);
+#endif
+
+    void* buffer{nullptr};
+    hipMalloc(&buffer, sizeof(bd));
+    printf("GPU:\n");
+    k<<<1,1>>>(buffer);
+    hipFree(buffer);
+    return 0;
+}
+