diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index c836dd5473f3c..2f830d6f941e7 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -138,6 +138,16 @@ pub(crate) unsafe fn create_module<'ll>(
         }
     }
 
+    if llvm_version < (20, 0, 0) {
+        if sess.target.arch == "aarch64" || sess.target.arch.starts_with("arm64") {
+            // LLVM 20 defines three additional address spaces for alternate
+            // pointer kinds used in Windows.
+            // See https://github.com/llvm/llvm-project/pull/111879
+            target_data_layout =
+                target_data_layout.replace("-p270:32:32-p271:32:32-p272:64:64", "");
+        }
+    }
+
     // Ensure the data-layout values hardcoded remain the defaults.
     {
         let tm = crate::back::write::create_informational_target_machine(tcx.sess, false);
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_darwin.rs
index e6ce50a005f7d..adee6f5fe9943 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_darwin.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_darwin.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             mcount: "\u{1}mcount".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios.rs
index 78441ede3337e..efc42b909e4e1 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_macabi.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_macabi.rs
index 857abd21faf68..be503d18bf151 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_macabi.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_macabi.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a12".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_sim.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_sim.rs
index cbc8b7cd95e45..04bbee45cd322 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_sim.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_ios_sim.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos.rs
index f5176d35f809f..fa0bc130e1c79 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos_sim.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos_sim.rs
index d673851414560..428045da49301 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos_sim.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_tvos_sim.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos.rs
index dc5dac4fd8f2e..62d6ffbd34f08 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a16".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos_sim.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos_sim.rs
index e9fe786f65ec5..a66c4f6e96bd1 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos_sim.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_visionos_sim.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a16".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs
index 4f5ce2f12e73c..abd924b5934af 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+v8a,+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos_sim.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos_sim.rs
index 952c98c324fa7..ba85647fddccb 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos_sim.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos_sim.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs b/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs
index 97ce53b2d8fde..58fc703946e5d 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs
@@ -11,7 +11,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             linker: Some("aarch64-kmc-elf-gcc".into()),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs b/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs
index a8ef5544a243e..a021d317cc83a 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs
@@ -13,7 +13,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             max_atomic_width: Some(128),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs
index 1f1cd96632675..6ac69e0f57f3b 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs
@@ -15,7 +15,7 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_gnullvm.rs b/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_gnullvm.rs
index 7a56809dcfc70..8b96f589c74d6 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_gnullvm.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_gnullvm.rs
@@ -15,7 +15,9 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
+                .into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_msvc.rs
index e1133a4ce051c..14ce5edd2f3c3 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_pc_windows_msvc.rs
@@ -14,7 +14,9 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
+                .into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs
index 2ca2f403e1773..dd90161f4408a 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs
index 26a736a271266..df13d52a22365 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs
index 3989cc13fba50..459e888eb9439 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs
@@ -11,7 +11,7 @@ pub(crate) fn target() -> Target {
         },
         pointer_width: 64,
         arch: "aarch64".into(),
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         options: TargetOptions {
             features: "+v8a,+strict-align,+neon,+fp-armv8".into(),
             max_atomic_width: Some(128),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs
index b76f10b8efdfa..699376a7928b4 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs
@@ -18,7 +18,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs
index 96c25af0a7fc0..18711cb399d73 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a,+outline-atomics".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs
index 197ff2d74e5e5..bb65048a56d66 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs
@@ -21,7 +21,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions { mcount: "\u{1}_mcount".into(), ..base },
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs
index 9d5bce053500c..22b3a5f88426d 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs
@@ -13,7 +13,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+reserve-x18".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs
index d1769d1476ccf..0ec76e4b42fd3 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs
index d124f8a3d2974..05fe32734a7e4 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs
@@ -37,7 +37,7 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: opts,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs
index 7933041b584ec..d6b77ffd091a9 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs
@@ -32,7 +32,7 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: opts,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_nto_qnx700.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_nto_qnx700.rs
index 6c061112b1667..441ed7cf1535e 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_nto_qnx700.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_nto_qnx700.rs
@@ -22,7 +22,7 @@ pub(crate) fn target() -> Target {
         // i128:128  = 128-bit-integer, minimum_alignment=128, preferred_alignment=128
         // n32:64    = 32 and 64 are native integer widths; Elements of this set are considered to support most general arithmetic operations efficiently.
         // S128      = 128 bits are the natural alignment of the stack in bits.
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs
index 31c8daa98b069..0fcf5c34bb0ee 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs
index 6bd8c306abb46..7ff99c574ad82 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs
@@ -15,7 +15,7 @@ pub(crate) fn target() -> Target {
             std: None, // ?
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs
index 4bffef4758d1b..fb8b59f77291a 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs
@@ -15,7 +15,7 @@ pub(crate) fn target() -> Target {
             std: None, // ?
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_trusty.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_trusty.rs
index 69ab992e12ca1..cebd8ff2f6848 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_trusty.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_trusty.rs
@@ -12,7 +12,7 @@ pub(crate) fn target() -> Target {
             std: Some(false),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+neon,+fp-armv8,+reserve-x18".into(),
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_uefi.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_uefi.rs
index bde1ce95b3f98..9656024ddaa1f 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_uefi.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_uefi.rs
@@ -19,7 +19,9 @@ pub(crate) fn target() -> Target {
             std: None, // ?
         },
         pointer_width: 64,
-        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
+                .into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/aarch64_uwp_windows_msvc.rs
index c916aa6b23cfe..3d7c026980807 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_uwp_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_uwp_windows_msvc.rs
@@ -14,7 +14,9 @@ pub(crate) fn target() -> Target {
             std: None, // ?
         },
         pointer_width: 64,
-        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
+                .into(),
         arch: "aarch64".into(),
         options: base,
     }
diff --git a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
index dd5298944e0d1..d5e78d0307606 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch: "aarch64".into(),
         options: TargetOptions {
             features: "+v8a".into(),
diff --git a/compiler/rustc_target/src/spec/targets/arm64_32_apple_watchos.rs b/compiler/rustc_target/src/spec/targets/arm64_32_apple_watchos.rs
index 4f7a1857e76ab..a5a6f772ac840 100644
--- a/compiler/rustc_target/src/spec/targets/arm64_32_apple_watchos.rs
+++ b/compiler/rustc_target/src/spec/targets/arm64_32_apple_watchos.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 32,
-        data_layout: "e-m:o-p:32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32".into(),
         arch,
         options: TargetOptions {
             features: "+v8a,+neon,+fp-armv8,+apple-a7".into(),
diff --git a/compiler/rustc_target/src/spec/targets/arm64e_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/arm64e_apple_darwin.rs
index 04906fb046097..744d95445b8e8 100644
--- a/compiler/rustc_target/src/spec/targets/arm64e_apple_darwin.rs
+++ b/compiler/rustc_target/src/spec/targets/arm64e_apple_darwin.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             mcount: "\u{1}mcount".into(),
diff --git a/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs b/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs
index 3264669c169f0..dace11dae24db 100644
--- a/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs
+++ b/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a12,+v8.3a,+pauth".into(),
diff --git a/compiler/rustc_target/src/spec/targets/arm64e_apple_tvos.rs b/compiler/rustc_target/src/spec/targets/arm64e_apple_tvos.rs
index 4c231cb519c0e..2ccdc76c52e6c 100644
--- a/compiler/rustc_target/src/spec/targets/arm64e_apple_tvos.rs
+++ b/compiler/rustc_target/src/spec/targets/arm64e_apple_tvos.rs
@@ -12,7 +12,8 @@ pub(crate) fn target() -> Target {
             std: Some(true),
         },
         pointer_width: 64,
-        data_layout: "e-m:o-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
+            .into(),
         arch,
         options: TargetOptions {
             features: "+neon,+fp-armv8,+apple-a12,+v8.3a,+pauth".into(),
diff --git a/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs
index a6744b95a3eb7..03c96fbfdb0c3 100644
--- a/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs
+++ b/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs
@@ -18,7 +18,9 @@ pub(crate) fn target() -> Target {
             std: None, // ?
         },
         pointer_width: 64,
-        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
+        data_layout:
+            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
+                .into(),
         arch: "arm64ec".into(),
         options: base,
     }