================ @@ -305,9 +305,22 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) mflr 0 std 0, PPC64_OFFS_SRR0(3) // store lr as ssr0 PPC64_STR(1) + PPC64_STR(4) // Save r4 first since it will be used for fixing r2. +#if defined(_AIX) + // The TOC register (r2) was changed by the glue code if unw_getcontext + // is called from a different module. Save the original TOC register + // in the context if this is the case. + mflr 4 ---------------- stephenpeckham wrote:
Not a bit deal, but LR is already in r0. Do you need mflr twice? You could use mr r4,r0. https://github.com/llvm/llvm-project/pull/66549 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
