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| author | Scott McMurray <scottmcm@users.noreply.github.com> | 2023-08-26 17:42:59 -0700 |
|---|---|---|
| committer | Scott McMurray <scottmcm@users.noreply.github.com> | 2023-08-26 17:42:59 -0700 |
| commit | 754f488d46fa33387c3dca3b08d3f3ec2fe02d3f (patch) | |
| tree | 0891bfc631224683cc918fe5ab976dfdba4241be /compiler/rustc_codegen_llvm/src/llvm/ffi.rs | |
| parent | 22d41ae90facbffdef9115809e8b6c1f71ebbf7c (diff) | |
| download | rust-754f488d46fa33387c3dca3b08d3f3ec2fe02d3f.tar.gz rust-754f488d46fa33387c3dca3b08d3f3ec2fe02d3f.zip | |
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
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/llvm/ffi.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 84157d1e25c..01cbf7d3b11 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -83,12 +83,17 @@ pub enum LLVMModFlagBehavior { // Consts for the LLVM CallConv type, pre-cast to usize. /// LLVM CallingConv::ID. Should we wrap this? +/// +/// See <https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/IR/CallingConv.h> #[derive(Copy, Clone, PartialEq, Debug)] #[repr(C)] pub enum CallConv { CCallConv = 0, FastCallConv = 8, ColdCallConv = 9, + PreserveMost = 14, + PreserveAll = 15, + Tail = 18, X86StdcallCallConv = 64, X86FastcallCallConv = 65, ArmAapcsCallConv = 67, |