From 078b067c0d9dbe1dd42569554b7d9bb967d59f46 Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Thu, 19 Sep 2024 20:26:43 +0900
Subject: [PATCH] Support 128-bit atomics on s390x
---
.../rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs | 2 +-
.../rustc_target/src/spec/targets/s390x_unknown_linux_musl.rs | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
index e0a6c230fd6..71086daaf2c 100644
--- a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
// ABI. Pass the -vector feature string to LLVM to respect this assumption. On LLVM < 16, we
// also strip v128 from the data_layout below to match the older LLVM's expectation.
base.features = "-vector".into();
- base.max_atomic_width = Some(64);
+ base.max_atomic_width = Some(128);
base.min_global_align = Some(16);
base.stack_probes = StackProbeType::Inline;
base.supported_sanitizers =
diff --git a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_musl.rs
index 6aabe9ca519..016ff5abe4c 100644
--- a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_musl.rs
@@ -10,7 +10,7 @@ pub(crate) fn target() -> Target {
// ABI. Pass the -vector feature string to LLVM to respect this assumption. On LLVM < 16, we
// also strip v128 from the data_layout below to match the older LLVM's expectation.
base.features = "-vector".into();
- base.max_atomic_width = Some(64);
+ base.max_atomic_width = Some(128);
base.min_global_align = Some(16);
base.static_position_independent_executables = true;
base.stack_probes = StackProbeType::Inline;