8 files changed, 33 insertions, 17 deletions
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs
index f3bdacf6085..95baa95b021 100644
--- a/compiler/rustc_codegen_llvm/src/attributes.rs
+++ b/compiler/rustc_codegen_llvm/src/attributes.rs
@@ -102,10 +102,10 @@ pub fn uwtable_attr(llcx: &llvm::Context) -> &Attribute {
 
 pub fn frame_pointer_type_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
     let mut fp = cx.sess().target.frame_pointer;
+    let opts = &cx.sess().opts;
     // "mcount" function relies on stack pointer.
     // See <https://sourceware.org/binutils/docs/gprof/Implementation.html>.
-    if cx.sess().instrument_mcount() || matches!(cx.sess().opts.cg.force_frame_pointers, Some(true))
-    {
+    if opts.unstable_opts.instrument_mcount || matches!(opts.cg.force_frame_pointers, Some(true)) {
         fp = FramePointer::Always;
     }
     let attr_value = match fp {
@@ -119,7 +119,7 @@ pub fn frame_pointer_type_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attr
 /// Tell LLVM what instrument function to insert.
 #[inline]
 fn instrument_function_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
-    if cx.sess().instrument_mcount() {
+    if cx.sess().opts.unstable_opts.instrument_mcount {
         // Similar to `clang -pg` behavior. Handled by the
         // `post-inline-ee-instrument` LLVM pass.
 
@@ -137,6 +137,14 @@ fn instrument_function_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribu
     }
 }
 
+fn nojumptables_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
+    if !cx.sess().opts.unstable_opts.no_jump_tables {
+        return None;
+    }
+
+    Some(llvm::CreateAttrStringValue(cx.llcx, "no-jump-tables", "true"))
+}
+
 fn probestack_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
     // Currently stack probes seem somewhat incompatible with the address
     // sanitizer and thread sanitizer. With asan we're already protected from
@@ -293,6 +301,7 @@ pub fn from_fn_attrs<'ll, 'tcx>(
     // FIXME: none of these three functions interact with source level attributes.
     to_add.extend(frame_pointer_type_attr(cx));
     to_add.extend(instrument_function_attr(cx));
+    to_add.extend(nojumptables_attr(cx));
     to_add.extend(probestack_attr(cx));
     to_add.extend(stackprotector_attr(cx));
 
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs
index 97d0de47b3a..e23c88b62c1 100644
--- a/compiler/rustc_codegen_llvm/src/back/write.rs
+++ b/compiler/rustc_codegen_llvm/src/back/write.rs
@@ -203,7 +203,7 @@ pub fn target_machine_factory(
         sess.opts.unstable_opts.trap_unreachable.unwrap_or(sess.target.trap_unreachable);
     let emit_stack_size_section = sess.opts.unstable_opts.emit_stack_sizes;
 
-    let asm_comments = sess.asm_comments();
+    let asm_comments = sess.opts.unstable_opts.asm_comments;
     let relax_elf_relocations =
         sess.opts.unstable_opts.relax_elf_relocations.unwrap_or(sess.target.relax_elf_relocations);
 
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index f3bff5d5716..d9ccba07a34 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -280,29 +280,35 @@ pub unsafe fn create_module<'ll>(
     }
 
     if let Some(BranchProtection { bti, pac_ret }) = sess.opts.unstable_opts.branch_protection {
+        let behavior = if llvm_version >= (15, 0, 0) {
+            llvm::LLVMModFlagBehavior::Min
+        } else {
+            llvm::LLVMModFlagBehavior::Error
+        };
+
         if sess.target.arch == "aarch64" {
             llvm::LLVMRustAddModuleFlag(
                 llmod,
-                llvm::LLVMModFlagBehavior::Error,
+                behavior,
                 "branch-target-enforcement\0".as_ptr().cast(),
                 bti.into(),
             );
             llvm::LLVMRustAddModuleFlag(
                 llmod,
-                llvm::LLVMModFlagBehavior::Error,
+                behavior,
                 "sign-return-address\0".as_ptr().cast(),
                 pac_ret.is_some().into(),
             );
             let pac_opts = pac_ret.unwrap_or(PacRet { leaf: false, key: PAuthKey::A });
             llvm::LLVMRustAddModuleFlag(
                 llmod,
-                llvm::LLVMModFlagBehavior::Error,
+                behavior,
                 "sign-return-address-all\0".as_ptr().cast(),
                 pac_opts.leaf.into(),
             );
             llvm::LLVMRustAddModuleFlag(
                 llmod,
-                llvm::LLVMModFlagBehavior::Error,
+                behavior,
                 "sign-return-address-with-bkey\0".as_ptr().cast(),
                 u32::from(pac_opts.key == PAuthKey::B),
             );
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index 86580d05d41..393bf30e9f8 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -30,7 +30,7 @@ use std::ffi::CString;
 /// implementing this Rust version, and though the format documentation is very explicit and
 /// detailed, some undocumented details in Clang's implementation (that may or may not be important)
 /// were also replicated for Rust's Coverage Map.
-pub fn finalize<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {
+pub fn finalize(cx: &CodegenCx<'_, '_>) {
     let tcx = cx.tcx;
 
     // Ensure the installed version of LLVM supports at least Coverage Map
@@ -284,7 +284,7 @@ fn save_function_record(
 /// "code coverage dead code cgu" during the partitioning process. This prevents us from generating
 /// code regions for the same function more than once which can lead to linker errors regarding
 /// duplicate symbols.
-fn add_unused_functions<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) {
+fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
     assert!(cx.codegen_unit.is_code_coverage_dead_code_cgu());
 
     let tcx = cx.tcx;
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
index a9e3dcf4cb3..48e3a812e4f 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
@@ -111,7 +111,7 @@ macro_rules! return_if_di_node_created_in_meantime {
 
 /// Extract size and alignment from a TyAndLayout.
 #[inline]
-fn size_and_align_of<'tcx>(ty_and_layout: TyAndLayout<'tcx>) -> (Size, Align) {
+fn size_and_align_of(ty_and_layout: TyAndLayout<'_>) -> (Size, Align) {
     (ty_and_layout.size, ty_and_layout.align.abi)
 }
 
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index 907517bf6ce..1ce48f82e1c 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -567,7 +567,7 @@ fn codegen_msvc_try<'ll>(
         // module.
         //
         // When modifying, make sure that the type_name string exactly matches
-        // the one used in src/libpanic_unwind/seh.rs.
+        // the one used in library/panic_unwind/src/seh.rs.
         let type_info_vtable = bx.declare_global("??_7type_info@@6B@", bx.type_i8p());
         let type_name = bx.const_bytes(b"rust_panic\0");
         let type_info =
diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
index e61dbe8b8fc..8b4861962b2 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
@@ -79,6 +79,7 @@ pub enum LLVMModFlagBehavior {
     Append = 5,
     AppendUnique = 6,
     Max = 7,
+    Min = 8,
 }
 
 // Consts for the LLVM CallConv type, pre-cast to usize.
@@ -2389,11 +2390,11 @@ extern "C" {
 
     pub fn LLVMRustSetDataLayoutFromTargetMachine<'a>(M: &'a Module, TM: &'a TargetMachine);
 
-    pub fn LLVMRustBuildOperandBundleDef<'a>(
+    pub fn LLVMRustBuildOperandBundleDef(
         Name: *const c_char,
-        Inputs: *const &'a Value,
+        Inputs: *const &'_ Value,
         NumInputs: c_uint,
-    ) -> &'a mut OperandBundleDef<'a>;
+    ) -> &mut OperandBundleDef<'_>;
     pub fn LLVMRustFreeOperandBundleDef<'a>(Bundle: &'a mut OperandBundleDef<'a>);
 
     pub fn LLVMRustPositionBuilderAtStart<'a>(B: &Builder<'a>, BB: &'a BasicBlock);
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 2fa602520dc..79b243f73d1 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -81,10 +81,10 @@ unsafe fn configure_llvm(sess: &Session) {
         };
         // Set the llvm "program name" to make usage and invalid argument messages more clear.
         add("rustc -Cllvm-args=\"...\" with", true);
-        if sess.time_llvm_passes() {
+        if sess.opts.unstable_opts.time_llvm_passes {
             add("-time-passes", false);
         }
-        if sess.print_llvm_passes() {
+        if sess.opts.unstable_opts.print_llvm_passes {
             add("-debug-pass=Structure", false);
         }
         if sess.target.generate_arange_section