Worked on stabilizing the GCC test suite for the PowerPC 64-bit Little Endian (PPC64le) architecture within the rust-lang/gcc repository, focusing on compiler testing and debugging using C. Addressed a persistent issue in the vsx-builtin-7 test by disabling Identical Code Folding through the -fno-ipa-icf flag, ensuring that distinct functions were not erroneously merged and that test expectations remained accurate. This targeted fix improved the reliability of cross-architecture continuous integration workflows and enhanced documentation and traceability for PowerPC test processes. The work demonstrated a deep understanding of GCC internals and contributed to more stable automated testing environments.