================ @@ -1056,6 +1056,22 @@ def CC_Intel_OCL_BI : CallingConv<[ CCDelegateTo<CC_X86_32_C> ]>; +def CC_X86_64_Preserve_None : CallingConv<[ + // We don't preserve general registers, so all of them can be used to pass + // arguments except + // - RBP frame pointer ---------------- weiguozhi wrote:
Added a comment to mention that R16-R31 are not used to pass arguments because they are not universally available. https://github.com/llvm/llvm-project/pull/76868 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
