diff options
| author | Joel Wejdenstål <joel.wejdenstal@gmail.com> | 2025-07-25 21:21:42 +0200 |
|---|---|---|
| committer | Joel Wejdenstål <joel.wejdenstal@gmail.com> | 2025-07-26 01:02:29 +0200 |
| commit | a448837045326d7c33059dc3aa2d1d87529dcf3d (patch) | |
| tree | 8b14dc9670550379eb0fe6cfdcc31aeeae73f27b /compiler/rustc_codegen_llvm/src/llvm/ffi.rs | |
| parent | 430d6eddfc6a455ca4a0137c0822a982cccd3b2b (diff) | |
| download | rust-a448837045326d7c33059dc3aa2d1d87529dcf3d.tar.gz rust-a448837045326d7c33059dc3aa2d1d87529dcf3d.zip | |
Implement support for explicit tail calls in the MIR block builders and the LLVM codegen backend.
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/llvm/ffi.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index edfb29dd1be..9d4bd70549b 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -97,6 +97,16 @@ pub(crate) enum ModuleFlagMergeBehavior { // Consts for the LLVM CallConv type, pre-cast to usize. +#[derive(Copy, Clone, PartialEq, Debug)] +#[repr(C)] +#[allow(dead_code)] +pub(crate) enum TailCallKind { + None = 0, + Tail = 1, + MustTail = 2, + NoTail = 3, +} + /// LLVM CallingConv::ID. Should we wrap this? /// /// See <https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/IR/CallingConv.h> @@ -1186,6 +1196,7 @@ unsafe extern "C" { pub(crate) safe fn LLVMIsGlobalConstant(GlobalVar: &Value) -> Bool; pub(crate) safe fn LLVMSetGlobalConstant(GlobalVar: &Value, IsConstant: Bool); pub(crate) safe fn LLVMSetTailCall(CallInst: &Value, IsTailCall: Bool); + pub(crate) safe fn LLVMRustSetTailCallKind(CallInst: &Value, Kind: TailCallKind); // Operations on attributes pub(crate) fn LLVMCreateStringAttribute( |