From d88b052d2d9aa8fa012be314bd29d7ae311fc941 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Fri, 25 Nov 2022 23:57:55 +0000 Subject: Naïve optimization of named _split_ multiple return valued when `defer` is never used MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is a naïve optimization but it helps a lot in the general case where callee temporary stack variables are not allocated to represent the named return values by using that specific memory. In the future, try to check if a specific named return value is ever used a `defer` within a procedure or not, or is ever passed to a nested procedure call (e.g. possibly escapes). --- src/llvm_abi.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/llvm_abi.cpp') diff --git a/src/llvm_abi.cpp b/src/llvm_abi.cpp index c35affad5..166fcb3ee 100644 --- a/src/llvm_abi.cpp +++ b/src/llvm_abi.cpp @@ -1426,7 +1426,9 @@ LB_ABI_INFO(lb_get_abi_info_internal) { switch (build_context.metrics.arch) { case TargetArch_amd64: - if (build_context.metrics.os == TargetOs_windows || build_context.metrics.abi == TargetABI_Win64) { + if (build_context.metrics.os == TargetOs_windows) { + return lbAbiAmd64Win64::abi_info(c, arg_types, arg_count, return_type, return_is_defined, return_is_tuple, calling_convention); + } else if (build_context.metrics.abi == TargetABI_Win64) { return lbAbiAmd64Win64::abi_info(c, arg_types, arg_count, return_type, return_is_defined, return_is_tuple, calling_convention); } else if (build_context.metrics.abi == TargetABI_SysV) { return lbAbiAmd64SysV::abi_info(c, arg_types, arg_count, return_type, return_is_defined, return_is_tuple, calling_convention); -- cgit v1.2.3