Add HIP.gitignore

HIP.gitignore

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+# HIP.gitignore
+# GitHub gitignore template for AMD HIP (ROCm) projects
+#
+# Reference:
+#   Official AMD ROCm HIP .gitignore: https://github.com/ROCm/hip/blob/amd-staging/.gitignore
+
+# 1. Build directories and files
+/build/                          # common build directory
+/CMakeFiles/                     # CMake internal files
+/CMakeCache.txt                  # CMake cache file
+/Makefile                        # autogenerated Makefile
+/cmake_install.cmake             # install script
+/install_manifest.txt            # install manifest list
+*.ninja-dep                      # Ninja dependency files
+*.ninja_log                      # Ninja log files
+meson-logs/                      # Meson log directory
+
+# 2. Compilation outputs and intermediates
+*.o                              # object files
+*.obj                            # Windows object files
+*.so                             # shared libraries
+*.a                              # static librarie
+*.d                              # dependency files
+*.gch                            # precompiled headers
+*.ii                             # preprocessed output
+*.ii.cpp                         # C++ preprocessed output
+*.out                            # generic executable outputs
+*.exe                            # Windows executables
+
+# 3. HIP/ROCm specific binaries and intermediates
+*.hsaco                          # ROCm compiled binary
+*.s                              # assembly output
+*.kernels.cpp                    # autogenerated kernel sources
+*.hip.cpp.*                      # hipcc intermediate outputs
+
+# 4. Official sample binaries and tutorial outputs
+bin/hipInfo                      # sample binary
+bin/hipBusBandwidth              # sample binary
+bin/hipDispatchLatency           # sample binary
+bin/hipify-clang                 # sample tool
+samples/**/*.out                 # tutorial outputs
+samples/**/*.code                # ISA/code dumps
+samples/**/*.hsaco               # compiled binaries
+samples/**/*.co                  # kernel code outputs
+
+# 5. Tags, logs and test outputs
+tags                             # ctags index
+*.log                            # log files
+/tests_output/                   # custom test output directory
+/samples_output/                 # custom sample output directory