diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/attributes.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/attributes.rs | 50 |
1 files changed, 21 insertions, 29 deletions
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index 3d7afa17bdf..e8c42d16733 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -407,30 +407,28 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( // Do not set sanitizer attributes for naked functions. to_add.extend(sanitize_attrs(cx, codegen_fn_attrs.no_sanitize)); - if llvm_util::get_version() >= (19, 0, 0) { - // For non-naked functions, set branch protection attributes on aarch64. - if let Some(BranchProtection { bti, pac_ret }) = - cx.sess().opts.unstable_opts.branch_protection - { - assert!(cx.sess().target.arch == "aarch64"); - if bti { - to_add.push(llvm::CreateAttrString(cx.llcx, "branch-target-enforcement")); - } - if let Some(PacRet { leaf, pc, key }) = pac_ret { - if pc { - to_add.push(llvm::CreateAttrString(cx.llcx, "branch-protection-pauth-lr")); - } - to_add.push(llvm::CreateAttrStringValue( - cx.llcx, - "sign-return-address", - if leaf { "all" } else { "non-leaf" }, - )); - to_add.push(llvm::CreateAttrStringValue( - cx.llcx, - "sign-return-address-key", - if key == PAuthKey::A { "a_key" } else { "b_key" }, - )); + // For non-naked functions, set branch protection attributes on aarch64. + if let Some(BranchProtection { bti, pac_ret }) = + cx.sess().opts.unstable_opts.branch_protection + { + assert!(cx.sess().target.arch == "aarch64"); + if bti { + to_add.push(llvm::CreateAttrString(cx.llcx, "branch-target-enforcement")); + } + if let Some(PacRet { leaf, pc, key }) = pac_ret { + if pc { + to_add.push(llvm::CreateAttrString(cx.llcx, "branch-protection-pauth-lr")); } + to_add.push(llvm::CreateAttrStringValue( + cx.llcx, + "sign-return-address", + if leaf { "all" } else { "non-leaf" }, + )); + to_add.push(llvm::CreateAttrStringValue( + cx.llcx, + "sign-return-address-key", + if key == PAuthKey::A { "a_key" } else { "b_key" }, + )); } } } @@ -510,12 +508,6 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( InstructionSetAttr::ArmA32 => "-thumb-mode".to_string(), InstructionSetAttr::ArmT32 => "+thumb-mode".to_string(), })) - // HACK: LLVM versions 19+ do not have the FPMR feature and treat it as always enabled - // It only exists as a feature in LLVM 18, cannot be passed down for any other version - .chain(match &*cx.tcx.sess.target.arch { - "aarch64" if llvm_util::get_version().0 == 18 => vec!["+fpmr".to_string()], - _ => vec![], - }) .collect::<Vec<String>>(); if cx.tcx.sess.target.is_like_wasm { |