From 754f488d46fa33387c3dca3b08d3f3ec2fe02d3f Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Sat, 26 Aug 2023 17:42:59 -0700 Subject: Use `preserve_mostcc` for `extern "rust-cold"` As experimentation in 115242 has shown looks better than `coldcc`. And *don't* use a different convention for cold on Windows, because that actually ends up making things worse. cc tracking issue 97544 --- compiler/rustc_codegen_cranelift/src/abi/mod.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'compiler/rustc_codegen_cranelift/src') diff --git a/compiler/rustc_codegen_cranelift/src/abi/mod.rs b/compiler/rustc_codegen_cranelift/src/abi/mod.rs index b7f56a2986c..5d775b9b532 100644 --- a/compiler/rustc_codegen_cranelift/src/abi/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/abi/mod.rs @@ -39,7 +39,7 @@ fn clif_sig_from_fn_abi<'tcx>( pub(crate) fn conv_to_call_conv(sess: &Session, c: Conv, default_call_conv: CallConv) -> CallConv { match c { Conv::Rust | Conv::C => default_call_conv, - Conv::RustCold => CallConv::Cold, + Conv::Cold | Conv::PreserveMost | Conv::PreserveAll => CallConv::Cold, Conv::X86_64SysV => CallConv::SystemV, Conv::X86_64Win64 => CallConv::WindowsFastcall, -- cgit 1.4.1-3-g733a5