Rollup merge of #142640 - Sa4dUs:ad-intrinsic, r=ZuseZ4

Implement autodiff using intrinsics

This PR aims to move autodiff logic to `autodiff` intrinsic. Allowing us to delete a great part of our frontend code and overall, simplify the compilation pipeline of autodiff functions.

1 files changed, 0 insertions, 26 deletions

diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
index 154ba4fd690..0ea0af0c9af 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
@@ -42,32 +42,6 @@ pub(crate) fn AddFunctionAttributes<'ll>(
     }
 }
 
-pub(crate) fn HasAttributeAtIndex<'ll>(
-    llfn: &'ll Value,
-    idx: AttributePlace,
-    kind: AttributeKind,
-) -> bool {
-    unsafe { LLVMRustHasAttributeAtIndex(llfn, idx.as_uint(), kind) }
-}
-
-pub(crate) fn HasStringAttribute<'ll>(llfn: &'ll Value, name: &str) -> bool {
-    unsafe { LLVMRustHasFnAttribute(llfn, name.as_c_char_ptr(), name.len()) }
-}
-
-pub(crate) fn RemoveStringAttrFromFn<'ll>(llfn: &'ll Value, name: &str) {
-    unsafe { LLVMRustRemoveFnAttribute(llfn, name.as_c_char_ptr(), name.len()) }
-}
-
-pub(crate) fn RemoveRustEnumAttributeAtIndex(
-    llfn: &Value,
-    place: AttributePlace,
-    kind: AttributeKind,
-) {
-    unsafe {
-        LLVMRustRemoveEnumAttributeAtIndex(llfn, place.as_uint(), kind);
-    }
-}
-
 pub(crate) fn AddCallSiteAttributes<'ll>(
     callsite: &'ll Value,
     idx: AttributePlace,