LLVM 18 x86 data layout update

With https://reviews.llvm.org/D86310 LLVM now has i128 aligned to
16-bytes on x86 based platforms. This will be in LLVM-18. This patch
updates all our spec targets to be 16-byte aligned, and removes the
alignment when speaking to older LLVM.

This results in Rust overaligning things relative to LLVM on older LLVMs.

This alignment change was discussed in rust-lang/compiler-team#683

See #54341 for additional information about why this is happening and
where this will be useful in the future.

This *does not* stabilize `i128`/`u128` for FFI.

51 files changed, 103 insertions, 85 deletions

diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs
index d0d98eb3d62..7f5213431f7 100644
--- a/compiler/rustc_ast/src/ast.rs
+++ b/compiler/rustc_ast/src/ast.rs
@@ -3304,9 +3304,13 @@ mod size_asserts {
     static_assert_size!(Impl, 136);
     static_assert_size!(Item, 136);
     static_assert_size!(ItemKind, 64);
-    static_assert_size!(LitKind, 24);
+    // This can be removed after i128:128 is in the bootstrap compiler's target.
+    #[cfg(not(bootstrap))]
+    static_assert_size!(LitKind, 32);
     static_assert_size!(Local, 72);
-    static_assert_size!(MetaItemLit, 40);
+    // This can be removed after i128:128 is in the bootstrap compiler's target.
+    #[cfg(not(bootstrap))]
+    static_assert_size!(MetaItemLit, 48);
     static_assert_size!(Param, 40);
     static_assert_size!(Pat, 72);
     static_assert_size!(Path, 24);
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index 1d1b6e6148d..f3b2caf9b80 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -145,6 +145,14 @@ pub unsafe fn create_module<'ll>(
                 .replace("-Fi64", "");
         }
     }
+    if llvm_version < (18, 0, 0) {
+        if sess.target.arch == "x86" || sess.target.arch == "x86_64" {
+            // LLVM 18 adjusts i128 to be 128-bit aligned on x86 variants.
+            // Earlier LLVMs leave this as default alignment, so remove it.
+            // See https://reviews.llvm.org/D86310
+            target_data_layout = target_data_layout.replace("-i128:128", "");
+        }
+    }
 
     // Ensure the data-layout values hardcoded remain the defaults.
     if sess.target.is_builtin {
diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs
index 36f5ba161d5..624ae8c22f9 100644
--- a/compiler/rustc_middle/src/mir/mod.rs
+++ b/compiler/rustc_middle/src/mir/mod.rs
@@ -1672,13 +1672,19 @@ mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;
     // tidy-alphabetical-start
-    static_assert_size!(BasicBlockData<'_>, 136);
+    // This can be removed after i128:128 is in the bootstrap compiler's target.
+    #[cfg(not(bootstrap))]
+    static_assert_size!(BasicBlockData<'_>, 144);
     static_assert_size!(LocalDecl<'_>, 40);
     static_assert_size!(SourceScopeData<'_>, 72);
     static_assert_size!(Statement<'_>, 32);
     static_assert_size!(StatementKind<'_>, 16);
-    static_assert_size!(Terminator<'_>, 104);
-    static_assert_size!(TerminatorKind<'_>, 88);
+    // This can be removed after i128:128 is in the bootstrap compiler's target.
+    #[cfg(not(bootstrap))]
+    static_assert_size!(Terminator<'_>, 112);
+    // This can be removed after i128:128 is in the bootstrap compiler's target.
+    #[cfg(not(bootstrap))]
+    static_assert_size!(TerminatorKind<'_>, 96);
     static_assert_size!(VarDebugInfo<'_>, 88);
     // tidy-alphabetical-end
 }
diff --git a/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs b/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs
index 13f8b6b5a0a..a221538b902 100644
--- a/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs
+++ b/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: ios_sim_llvm_target(arch).into(),
         pointer_width: 32,
         data_layout: "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:128-n8:16:32-S128"
+            i128:128-f64:32:64-f80:128-n8:16:32-S128"
             .into(),
         arch: arch.target_arch(),
         options: TargetOptions { max_atomic_width: Some(64), ..opts("ios", arch) },
diff --git a/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs
index 59069fe4e3a..25617b4436c 100644
--- a/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs
@@ -18,7 +18,7 @@ pub fn target() -> Target {
         llvm_target: macos_llvm_target(Arch::I686).into(),
         pointer_width: 32,
         data_layout: "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:128-n8:16:32-S128"
+            i128:128-f64:32:64-f80:128-n8:16:32-S128"
             .into(),
         arch: arch.target_arch(),
         options: TargetOptions { mcount: "\u{1}mcount".into(), ..base },
diff --git a/compiler/rustc_target/src/spec/targets/i686_linux_android.rs b/compiler/rustc_target/src/spec/targets/i686_linux_android.rs
index 79471040f0d..12ebf0c72f8 100644
--- a/compiler/rustc_target/src/spec/targets/i686_linux_android.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_linux_android.rs
@@ -17,7 +17,7 @@ pub fn target() -> Target {
         llvm_target: "i686-linux-android".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: TargetOptions { supported_sanitizers: SanitizerSet::ADDRESS, ..base },
diff --git a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs
index 8d4a39b5811..11818034414 100644
--- a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs
@@ -19,7 +19,7 @@ pub fn target() -> Target {
         llvm_target: "i686-pc-windows-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            i64:64-f80:32-n8:16:32-a:0:32-S32"
+            i64:64-i128:128-f80:32-n8:16:32-a:0:32-S32"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnullvm.rs b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnullvm.rs
index bb410cd8caf..f4e33b88178 100644
--- a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnullvm.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnullvm.rs
@@ -18,7 +18,7 @@ pub fn target() -> Target {
         llvm_target: "i686-pc-windows-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            i64:64-f80:32-n8:16:32-a:0:32-S32"
+            i64:64-i128:128-f80:32-n8:16:32-a:0:32-S32"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/i686_pc_windows_msvc.rs
index 5abc3017bf8..9f1c8f4676c 100644
--- a/compiler/rustc_target/src/spec/targets/i686_pc_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_pc_windows_msvc.rs
@@ -25,7 +25,7 @@ pub fn target() -> Target {
         llvm_target: "i686-pc-windows-msvc".into(),
         pointer_width: 32,
         data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            i64:64-f80:128-n8:16:32-a:0:32-S32"
+            i64:64-i128:128-f80:128-n8:16:32-a:0:32-S32"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_freebsd.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_freebsd.rs
index 927b2ab877d..d90f481c68c 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_freebsd.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_freebsd.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-freebsd".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_haiku.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_haiku.rs
index bc7fd6fbc68..330a390c981 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_haiku.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_haiku.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-haiku".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_hurd_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_hurd_gnu.rs
index 6884e078c27..c32f7177c1a 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_hurd_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_hurd_gnu.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-hurd-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
index 3b7be48dbbc..9bc38a72f4d 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
@@ -12,7 +12,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-linux-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_musl.rs
index ef58b4fb458..4a82e0986c7 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_musl.rs
@@ -25,7 +25,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-linux-musl".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_netbsd.rs
index 5f3afbe5afd..ea72656607e 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_netbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_netbsd.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-netbsdelf".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: TargetOptions { mcount: "__mcount".into(), ..base },
diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_openbsd.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_openbsd.rs
index f44584a10be..945dc0f8967 100644
--- a/compiler/rustc_target/src/spec/targets/i686_unknown_openbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_openbsd.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-openbsd".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_uwp_windows_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_uwp_windows_gnu.rs
index ec211a710eb..0830033dc23 100644
--- a/compiler/rustc_target/src/spec/targets/i686_uwp_windows_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_uwp_windows_gnu.rs
@@ -18,7 +18,7 @@ pub fn target() -> Target {
         llvm_target: "i686-pc-windows-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            i64:64-f80:32-n8:16:32-a:0:32-S32"
+            i64:64-i128:128-f80:32-n8:16:32-a:0:32-S32"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/i686_uwp_windows_msvc.rs
index 7cca2fc6b9f..534dd6ee54f 100644
--- a/compiler/rustc_target/src/spec/targets/i686_uwp_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_uwp_windows_msvc.rs
@@ -9,7 +9,7 @@ pub fn target() -> Target {
         llvm_target: "i686-pc-windows-msvc".into(),
         pointer_width: 32,
         data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            i64:64-f80:128-n8:16:32-a:0:32-S32"
+            i64:64-i128:128-f80:128-n8:16:32-a:0:32-S32"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
index ee501c5165e..30c2295e402 100644
--- a/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
@@ -11,7 +11,7 @@ pub fn target() -> Target {
         llvm_target: "i686-unknown-linux-gnu".into(),
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
-            f64:32:64-f80:32-n8:16:32-S128"
+            i128:128-f64:32:64-f80:32-n8:16:32-S128"
             .into(),
         arch: "x86".into(),
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs
index 59df3937ea6..356c6721868 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs
@@ -17,8 +17,8 @@ pub fn target() -> Target {
         // correctly, we do too.
         llvm_target: macos_llvm_target(arch).into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { mcount: "\u{1}mcount".into(), ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs
index d0e2ac44a2a..55165ea4ec6 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs
@@ -9,8 +9,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: ios_sim_llvm_target(arch).into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { max_atomic_width: Some(128), ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs
index 8ef4b88b8b1..ff21e489333 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios_macabi.rs
@@ -12,8 +12,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: llvm_target.into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { max_atomic_width: Some(128), ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs
index 17efd437f2f..20b01612553 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_tvos.rs
@@ -6,8 +6,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: tvos_sim_llvm_target(arch).into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { max_atomic_width: Some(128), ..opts("tvos", arch) },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs
index b1f72ee2f21..806a58e980b 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_watchos_sim.rs
@@ -6,8 +6,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: watchos_sim_llvm_target(arch).into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { max_atomic_width: Some(128), ..opts("watchos", arch) },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_fortanix_unknown_sgx.rs b/compiler/rustc_target/src/spec/targets/x86_64_fortanix_unknown_sgx.rs
index f4117edc3ff..c38a1a08536 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_fortanix_unknown_sgx.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_fortanix_unknown_sgx.rs
@@ -75,8 +75,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-elf".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: opts,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_linux_android.rs b/compiler/rustc_target/src/spec/targets/x86_64_linux_android.rs
index 0e6d41abc9b..30b1ee73630 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_linux_android.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_linux_android.rs
@@ -16,8 +16,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-linux-android".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: TargetOptions { supported_sanitizers: SanitizerSet::ADDRESS, ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_pc_nto_qnx710.rs b/compiler/rustc_target/src/spec/targets/x86_64_pc_nto_qnx710.rs
index 93aec4c425a..0ef01597399 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_pc_nto_qnx710.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_pc_nto_qnx710.rs
@@ -4,8 +4,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-unknown".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: TargetOptions {
             cpu: "x86-64".into(),
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_pc_solaris.rs b/compiler/rustc_target/src/spec/targets/x86_64_pc_solaris.rs
index f15ad8dda63..ade4dd6d431 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_pc_solaris.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_pc_solaris.rs
@@ -13,8 +13,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-solaris".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnu.rs b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnu.rs
index 6d3e0727051..9e964d248bf 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnu.rs
@@ -16,8 +16,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-windows-gnu".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnullvm.rs b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnullvm.rs
index a56ebfa585e..1facf9450cd 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnullvm.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnullvm.rs
@@ -11,8 +11,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-windows-gnu".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_msvc.rs
index 3a4da91c244..357261073a8 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_pc_windows_msvc.rs
@@ -10,8 +10,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-windows-msvc".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unikraft_linux_musl.rs b/compiler/rustc_target/src/spec/targets/x86_64_unikraft_linux_musl.rs
index e6159fca3ae..6c9d1147548 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unikraft_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unikraft_linux_musl.rs
@@ -5,8 +5,8 @@ pub fn target() -> Target {
         llvm_target: "x86_64-unknown-linux-musl".into(),
         pointer_width: 64,
         arch: "x86_64".into(),
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         options: TargetOptions {
             cpu: "x86-64".into(),
             plt_by_default: false,
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_dragonfly.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_dragonfly.rs
index 80adb8fa2d9..ce682bb8005 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_dragonfly.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_dragonfly.rs
@@ -11,8 +11,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-dragonfly".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_freebsd.rs
index fa321035367..6d6940e7891 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_freebsd.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_freebsd.rs
@@ -14,8 +14,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-freebsd".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_fuchsia.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_fuchsia.rs
index 5b19ed1b5ff..50139e5c1d8 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_fuchsia.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_fuchsia.rs
@@ -12,8 +12,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-fuchsia".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_haiku.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_haiku.rs
index 0f927be962b..c00c689f7ef 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_haiku.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_haiku.rs
@@ -13,8 +13,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-haiku".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_hermit.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_hermit.rs
index df191f515bd..fb46848ba8c 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_hermit.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_hermit.rs
@@ -5,8 +5,8 @@ pub fn target() -> Target {
         llvm_target: "x86_64-unknown-hermit".into(),
         pointer_width: 64,
         arch: "x86_64".into(),
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         options: TargetOptions {
             cpu: "x86-64".into(),
             features: "+rdrnd,+rdseed".into(),
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_illumos.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_illumos.rs
index eb2b13cb5c2..3e3f4921322 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_illumos.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_illumos.rs
@@ -13,8 +13,8 @@ pub fn target() -> Target {
         // so we still pass Solaris to it
         llvm_target: "x86_64-pc-solaris".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_l4re_uclibc.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_l4re_uclibc.rs
index 7b86fe738b1..646623668c6 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_l4re_uclibc.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_l4re_uclibc.rs
@@ -10,8 +10,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-l4re-uclibc".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
index bf10f7e5d2d..2296b58f45d 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
@@ -19,8 +19,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-linux-gnu".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_musl.rs
index 8dc5503e336..c71dc65670c 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_musl.rs
@@ -18,8 +18,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-linux-musl".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_ohos.rs
index 35862656aa2..c25105f6e35 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_ohos.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_ohos.rs
@@ -18,8 +18,8 @@ pub fn target() -> Target {
         // LLVM 15 doesn't support OpenHarmony yet, use a linux target instead.
         llvm_target: "x86_64-unknown-linux-musl".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_netbsd.rs
index e2cee0513ba..466498acb0b 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_netbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_netbsd.rs
@@ -19,8 +19,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-netbsd".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: TargetOptions { mcount: "__mcount".into(), ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_none.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_none.rs
index 8f7655d8ccd..ceded7790a6 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_none.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_none.rs
@@ -30,8 +30,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-none-elf".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: opts,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_openbsd.rs
index 1133b50f3d2..b542a569bbd 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_openbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_openbsd.rs
@@ -12,8 +12,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-openbsd".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_redox.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_redox.rs
index c1f57311292..550b7a3d282 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_redox.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_redox.rs
@@ -11,8 +11,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-redox".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_uefi.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_uefi.rs
index 5abfb8162f7..95847e57a0f 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_uefi.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_uefi.rs
@@ -32,8 +32,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-windows".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
 
         options: base,
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_gnu.rs b/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_gnu.rs
index a46d3a0e27b..c2981ddbad6 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_gnu.rs
@@ -15,8 +15,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-windows-gnu".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_msvc.rs
index a3bc27aa065..3f0702c7ad6 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_msvc.rs
@@ -9,8 +9,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-pc-windows-msvc".into(),
         pointer_width: 64,
-        data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
index 765239bdd39..f7a78b48f95 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
@@ -12,8 +12,8 @@ pub fn target() -> Target {
     Target {
         llvm_target: "x86_64-unknown-linux-gnu".into(),
         pointer_width: 64,
-        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: "x86_64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs
index 0c731e369eb..e0e4cb93e31 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64h_apple_darwin.rs
@@ -35,8 +35,8 @@ pub fn target() -> Target {
         // correctly, we do too.
         llvm_target: macos_llvm_target(arch).into(),
         pointer_width: 64,
-        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-            .into(),
+        data_layout:
+            "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
         arch: arch.target_arch(),
         options: TargetOptions { mcount: "\u{1}mcount".into(), ..base },
     }