rustc_codegen_llvm/llvm/
enzyme_ffi.rs

1#![allow(non_camel_case_types)]
2#![expect(dead_code)]
3
4use libc::{c_char, c_uint};
5
6use super::MetadataKindId;
7use super::ffi::{AttributeKind, BasicBlock, Metadata, Module, Type, Value};
8use crate::llvm::Bool;
9
10#[link(name = "llvm-wrapper", kind = "static")]
11unsafe extern "C" {
12    // Enzyme
13    pub(crate) safe fn LLVMRustHasMetadata(I: &Value, KindID: MetadataKindId) -> bool;
14    pub(crate) fn LLVMRustEraseInstUntilInclusive(BB: &BasicBlock, I: &Value);
15    pub(crate) fn LLVMRustGetLastInstruction<'a>(BB: &BasicBlock) -> Option<&'a Value>;
16    pub(crate) fn LLVMRustDIGetInstMetadata(I: &Value) -> Option<&Metadata>;
17    pub(crate) fn LLVMRustEraseInstFromParent(V: &Value);
18    pub(crate) fn LLVMRustGetTerminator<'a>(B: &BasicBlock) -> &'a Value;
19    pub(crate) fn LLVMRustVerifyFunction(V: &Value, action: LLVMRustVerifierFailureAction) -> Bool;
20    pub(crate) fn LLVMRustHasAttributeAtIndex(V: &Value, i: c_uint, Kind: AttributeKind) -> bool;
21    pub(crate) fn LLVMRustGetArrayNumElements(Ty: &Type) -> u64;
22    pub(crate) fn LLVMRustHasFnAttribute(
23        F: &Value,
24        Name: *const c_char,
25        NameLen: libc::size_t,
26    ) -> bool;
27    pub(crate) fn LLVMRustRemoveFnAttribute(F: &Value, Name: *const c_char, NameLen: libc::size_t);
28    pub(crate) fn LLVMGetFirstFunction(M: &Module) -> Option<&Value>;
29    pub(crate) fn LLVMGetNextFunction(Fn: &Value) -> Option<&Value>;
30    pub(crate) fn LLVMRustRemoveEnumAttributeAtIndex(
31        Fn: &Value,
32        index: c_uint,
33        kind: AttributeKind,
34    );
35}
36
37unsafe extern "C" {
38    // Enzyme
39    pub(crate) fn LLVMDumpModule(M: &Module);
40    pub(crate) fn LLVMDumpValue(V: &Value);
41    pub(crate) fn LLVMGetFunctionCallConv(F: &Value) -> c_uint;
42    pub(crate) fn LLVMGetReturnType(T: &Type) -> &Type;
43    pub(crate) fn LLVMGetParams(Fnc: &Value, parms: *mut &Value);
44    pub(crate) fn LLVMGetNamedFunction(M: &Module, Name: *const c_char) -> Option<&Value>;
45}
46
47#[repr(C)]
48#[derive(Copy, Clone, PartialEq)]
49pub(crate) enum LLVMRustVerifierFailureAction {
50    LLVMAbortProcessAction = 0,
51    LLVMPrintMessageAction = 1,
52    LLVMReturnStatusAction = 2,
53}
54
55#[cfg(llvm_enzyme)]
56pub(crate) use self::Enzyme_AD::*;
57
58#[cfg(llvm_enzyme)]
59pub(crate) mod Enzyme_AD {
60    use libc::c_void;
61    unsafe extern "C" {
62        pub(crate) fn EnzymeSetCLBool(arg1: *mut ::std::os::raw::c_void, arg2: u8);
63    }
64    unsafe extern "C" {
65        static mut EnzymePrintPerf: c_void;
66        static mut EnzymePrintActivity: c_void;
67        static mut EnzymePrintType: c_void;
68        static mut EnzymePrint: c_void;
69        static mut EnzymeStrictAliasing: c_void;
70        static mut looseTypeAnalysis: c_void;
71        static mut EnzymeInline: c_void;
72        static mut RustTypeRules: c_void;
73    }
74    pub(crate) fn set_print_perf(print: bool) {
75        unsafe {
76            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintPerf), print as u8);
77        }
78    }
79    pub(crate) fn set_print_activity(print: bool) {
80        unsafe {
81            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintActivity), print as u8);
82        }
83    }
84    pub(crate) fn set_print_type(print: bool) {
85        unsafe {
86            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintType), print as u8);
87        }
88    }
89    pub(crate) fn set_print(print: bool) {
90        unsafe {
91            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrint), print as u8);
92        }
93    }
94    pub(crate) fn set_strict_aliasing(strict: bool) {
95        unsafe {
96            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymeStrictAliasing), strict as u8);
97        }
98    }
99    pub(crate) fn set_loose_types(loose: bool) {
100        unsafe {
101            EnzymeSetCLBool(std::ptr::addr_of_mut!(looseTypeAnalysis), loose as u8);
102        }
103    }
104    pub(crate) fn set_inline(val: bool) {
105        unsafe {
106            EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymeInline), val as u8);
107        }
108    }
109    pub(crate) fn set_rust_rules(val: bool) {
110        unsafe {
111            EnzymeSetCLBool(std::ptr::addr_of_mut!(RustTypeRules), val as u8);
112        }
113    }
114}
115
116#[cfg(not(llvm_enzyme))]
117pub(crate) use self::Fallback_AD::*;
118
119#[cfg(not(llvm_enzyme))]
120pub(crate) mod Fallback_AD {
121    #![allow(unused_variables)]
122
123    pub(crate) fn set_inline(val: bool) {
124        unimplemented!()
125    }
126    pub(crate) fn set_print_perf(print: bool) {
127        unimplemented!()
128    }
129    pub(crate) fn set_print_activity(print: bool) {
130        unimplemented!()
131    }
132    pub(crate) fn set_print_type(print: bool) {
133        unimplemented!()
134    }
135    pub(crate) fn set_print(print: bool) {
136        unimplemented!()
137    }
138    pub(crate) fn set_strict_aliasing(strict: bool) {
139        unimplemented!()
140    }
141    pub(crate) fn set_loose_types(loose: bool) {
142        unimplemented!()
143    }
144    pub(crate) fn set_rust_rules(val: bool) {
145        unimplemented!()
146    }
147}
rustc_codegen_llvm/llvm/enzyme_ffi.rs

rustc_codegen_llvm/llvm/
enzyme_ffi.rs
