import rust-1.55.0-1.module+el8.6.0+13130+6081e3bb

2021-12-14 02:51:43 +00:00 · 2021-12-14 02:51:43 +00:00 · 60de010dfe
commit 60de010dfe
parent 9add913223
7 changed files with 1094 additions and 96 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1 +1 @@
-SOURCES/rustc-1.51.0-src.tar.xz
+SOURCES/rustc-1.55.0-src.tar.xz
--- a/.rust.metadata
+++ b/.rust.metadata
@ -1 +1 @@
-3a88f9fa4c3e0ef74ce8396ad80121fd0b6cb349 SOURCES/rustc-1.51.0-src.tar.xz
+3fd8c1e1d44f95621499d245d0be00c4945347fb SOURCES/rustc-1.55.0-src.tar.xz
--- a/SOURCES/0001-Use-lld-provided-by-system-for-wasm.patch
+++ b/SOURCES/0001-Use-lld-provided-by-system-for-wasm.patch
@ -0,0 +1,26 @@
+From 9ac837c237568a6c1c5f0e979fcce208cd9c926a Mon Sep 17 00:00:00 2001
+From: Ivan Mironov <mironov.ivan@gmail.com>
+Date: Sun, 8 Dec 2019 17:23:08 +0500
+Subject: [PATCH] Use lld provided by system for wasm
+
+---
+ compiler/rustc_target/src/spec/wasm_base.rs | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/compiler/rustc_target/src/spec/wasm_base.rs b/compiler/rustc_target/src/spec/wasm_base.rs
+index 4c954a1e567c..15c4f1bda5eb 100644
+--- a/compiler/rustc_target/src/spec/wasm_base.rs
+++ b/compiler/rustc_target/src/spec/wasm_base.rs
+@@ -99,8 +99,7 @@ pub fn options() -> TargetOptions {
+         // arguments just yet
+         limit_rdylib_exports: false,
+ 
+-        // we use the LLD shipped with the Rust toolchain by default
+-        linker: Some("rust-lld".to_owned()),
+        linker: Some("lld".to_owned()),
+         lld_flavor: LldFlavor::Wasm,
+         linker_is_gnu: false,
+ 
+-- 
+2.31.1
+
--- a/SOURCES/rustc-1.51.0-backport-pr81910.patch
+++ b/SOURCES/rustc-1.51.0-backport-pr81910.patch
@ -1,48 +0,0 @@
-From 852684d306cee955ed751f1e8d8eec6adaecff3b Mon Sep 17 00:00:00 2001
-From: Joshua Nelson <jyn514@gmail.com>
-Date: Mon, 8 Feb 2021 22:51:21 -0500
-Subject: [PATCH] Use format string in bootstrap panic instead of a string
- directly
-
-This fixes the following warning when compiling with nightly:
-
-```
-warning: panic message is not a string literal
-    --> src/bootstrap/builder.rs:1515:24
-     |
-1515 |                 panic!(out);
-     |                        ^^^
-     |
-     = note: `#[warn(non_fmt_panic)]` on by default
-     = note: this is no longer accepted in Rust 2021
-help: add a "{}" format string to Display the message
-     |
-1515 |                 panic!("{}", out);
-     |                        ^^^^^
-help: or use std::panic::panic_any instead
-     |
-1515 |                 std::panic::panic_any(out);
-     |                 ^^^^^^^^^^^^^^^^^^^^^^
-```
-
-(cherry picked from commit 31c93397bde772764cda3058e16f9cef61895090)
---
- src/bootstrap/builder.rs | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
-index f1a160250dbe..0f5fcb4af400 100644
--- a/src/bootstrap/builder.rs
-+++ b/src/bootstrap/builder.rs
-@@ -1490,7 +1490,7 @@ pub fn ensure<S: Step>(&'a self, step: S) -> S::Output {
-                 for el in stack.iter().rev() {
-                     out += &format!("\t{:?}\n", el);
-                 }
-                panic!(out);
-+                panic!("{}", out);
-             }
-             if let Some(out) = self.cache.get(&step) {
-                 self.verbose(&format!("{}c {:?}", "  ".repeat(stack.len()), step));
-- 
-2.31.1
-
--- a/SOURCES/rustc-1.55.0-disable-http2.patch
+++ b/SOURCES/rustc-1.55.0-disable-http2.patch
@ -1,6 +1,6 @@
--- rustc-beta-src/Cargo.lock.orig	2021-03-09 10:30:08.626424998 -0800
-+++ rustc-beta-src/Cargo.lock	2021-03-09 10:32:38.096207704 -0800
-@@ -899,7 +899,6 @@
+--- rustc-1.55.0-src/Cargo.lock.orig	2021-09-07 16:33:21.672163689 -0700
+++ rustc-1.55.0-src/Cargo.lock	2021-09-07 16:33:21.673163668 -0700
+@@ -877,7 +877,6 @@
 dependencies = [
  "cc",
  "libc",
@ -8,8 +8,8 @@
  "libz-sys",
  "openssl-sys",
  "pkg-config",
-@@ -1860,16 +1859,6 @@
- ]
+@@ -1907,16 +1906,6 @@
+ checksum = "7fc7aa29613bd6a620df431842069224d8bc9011086b1db4c0e0cd47fa03ec9a"
 
 [[package]]
 -name = "libnghttp2-sys"
@ -25,20 +25,20 @@
 name = "libz-sys"
 version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
--- rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2021-03-05 08:34:15.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.toml	2021-03-09 10:32:38.096207704 -0800
+--- rustc-1.55.0-src/src/tools/cargo/Cargo.toml.orig	2021-09-07 16:33:21.673163668 -0700
+++ rustc-1.55.0-src/src/tools/cargo/Cargo.toml	2021-09-07 16:34:59.637068004 -0700
@@ -25,7 +25,7 @@
+ cargo-util = { path = "crates/cargo-util", version = "0.1.1" }
 crates-io = { path = "crates/crates-io", version = "0.33.0" }
 crossbeam-utils = "0.8"
- crypto-hash = "0.3.1"
-curl = { version = "0.4.23", features = ["http2"] }
-+curl = { version = "0.4.23", features = [] }
- curl-sys = "0.4.22"
- env_logger = "0.8.1"
+-curl = { version = "0.4.38", features = ["http2"] }
+curl = { version = "0.4.38", features = [] }
+ curl-sys = "0.4.45"
+ env_logger = "0.9.0"
 pretty_env_logger = { version = "0.4", optional = true }
--- rustc-beta-src/src/tools/cargo/src/cargo/core/package.rs.orig	2021-03-05 08:34:15.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/src/cargo/core/package.rs	2021-03-09 10:32:38.096207704 -0800
-@@ -412,14 +412,8 @@
+--- rustc-1.55.0-src/src/tools/cargo/src/cargo/core/package.rs.orig	2021-09-06 11:42:51.000000000 -0700
+++ rustc-1.55.0-src/src/tools/cargo/src/cargo/core/package.rs	2021-09-07 16:33:21.674163646 -0700
+@@ -417,14 +417,8 @@
         // Also note that pipelining is disabled as curl authors have indicated
         // that it's buggy, and we've empirically seen that it's buggy with HTTP
         // proxies.
@ -46,7 +46,7 @@
 -        let multiplexing = config.http_config()?.multiplexing.unwrap_or(true);
 -        multi
 -            .pipelining(false, multiplexing)
-            .chain_err(|| "failed to enable multiplexing/pipelining in curl")?;
+-            .with_context(|| "failed to enable multiplexing/pipelining in curl")?;
 -
 -        // let's not flood crates.io with connections
 -        multi.set_max_host_connections(2)?;
@ -55,7 +55,7 @@
 
         Ok(PackageSet {
             packages: package_ids
-@@ -592,7 +586,7 @@
+@@ -597,7 +591,7 @@
 macro_rules! try_old_curl {
     ($e:expr, $msg:expr) => {
         let result = $e;
--- a/SOURCES/rustc-1.55.0-llvm-13.patch
+++ b/SOURCES/rustc-1.55.0-llvm-13.patch
@ -0,0 +1,898 @@
+From e84e42e37057d51f68075845c92ad817c1893857 Mon Sep 17 00:00:00 2001
+From: bors <bors@rust-lang.org>
+Date: Sat, 21 Aug 2021 09:25:28 +0000
+Subject: [PATCH] Auto merge of #87570 - nikic:llvm-13, r=nagisa
+
+Upgrade to LLVM 13
+
+Work in progress update to LLVM 13. Main changes:
+
+ * InlineAsm diagnostics reported using SrcMgr diagnostic kind are now handled. Previously these used a separate diag handler.
+ * Codegen tests are updated for additional attributes.
+ * Some data layouts have changed.
+ * Switch `#[used]` attribute from `llvm.used` to `llvm.compiler.used` to avoid SHF_GNU_RETAIN flag introduced in https://reviews.llvm.org/D97448, which appears to trigger a bug in older versions of gold.
+ * Set `LLVM_INCLUDE_TESTS=OFF` to avoid Python 3.6 requirement.
+
+Upstream issues:
+
+ * ~~https://bugs.llvm.org/show_bug.cgi?id=51210 (InlineAsm diagnostic reporting for module asm)~~ Fixed by https://github.com/llvm/llvm-project/commit/1558bb80c01b695ce12642527cbfccf16cf54ece.
+ * ~~https://bugs.llvm.org/show_bug.cgi?id=51476 (Miscompile on AArch64 due to incorrect comparison elimination)~~ Fixed by https://github.com/llvm/llvm-project/commit/81b106584f2baf33e09be2362c35c1bf2f6bfe94.
+ * https://bugs.llvm.org/show_bug.cgi?id=51207 (Can't set custom section flags anymore). Problematic change reverted in our fork, https://reviews.llvm.org/D107216 posted for upstream revert.
+ * https://bugs.llvm.org/show_bug.cgi?id=51211 (Regression in codegen for #83623). This is an optimization regression that we may likely have to eat for this release. The fix for #83623 was based on an incorrect premise, and this needs to be properly addressed in the MergeICmps pass.
+
+The [compile-time impact](https://perf.rust-lang.org/compare.html?start=ef9549b6c0efb7525c9b012148689c8d070f9bc0&end=0983094463497eec22d550dad25576a894687002) is mixed, but quite positive as LLVM upgrades go.
+
+The LLVM 13 final release is scheduled for Sep 21st. The current nightly is scheduled for stable release on Oct 21st.
+
+r? `@ghost`
+
+(cherry picked from commit db002a06ae9154a35d410550bc5132df883d7baa)
+---
+ compiler/rustc_codegen_llvm/src/back/write.rs | 43 +--------
+ compiler/rustc_codegen_llvm/src/base.rs       |  8 +-
+ compiler/rustc_codegen_llvm/src/consts.rs     | 15 ++-
+ compiler/rustc_codegen_llvm/src/context.rs    | 55 ++++++++---
+ compiler/rustc_codegen_llvm/src/lib.rs        |  2 +-
+ .../rustc_codegen_llvm/src/llvm/diagnostic.rs | 94 +++++++++++++++----
+ compiler/rustc_codegen_llvm/src/llvm/ffi.rs   |  7 +-
+ compiler/rustc_codegen_ssa/src/traits/misc.rs |  2 +
+ .../rustc_codegen_ssa/src/traits/statics.rs   | 18 ++--
+ compiler/rustc_feature/src/accepted.rs        |  2 +-
+ .../rustc_llvm/llvm-wrapper/RustWrapper.cpp   | 20 +++-
+ .../src/spec/powerpc64_unknown_linux_gnu.rs   |  2 +-
+ .../src/spec/powerpc64_unknown_linux_musl.rs  |  2 +-
+ .../src/spec/powerpc64_wrs_vxworks.rs         |  2 +-
+ .../src/spec/powerpc64le_unknown_linux_gnu.rs |  2 +-
+ .../spec/powerpc64le_unknown_linux_musl.rs    |  2 +-
+ .../src/spec/wasm32_unknown_emscripten.rs     |  2 +-
+ .../src/spec/wasm32_unknown_unknown.rs        |  2 +-
+ compiler/rustc_target/src/spec/wasm32_wasi.rs |  2 +-
+ .../src/spec/wasm64_unknown_unknown.rs        |  2 +-
+ src/bootstrap/native.rs                       |  1 +
+ src/test/codegen/array-equality.rs            |  4 +-
+ .../codegen/issue-83623-SIMD-PartialEq.rs     | 46 ---------
+ src/test/codegen/repeat-trusted-len.rs        |  2 +-
+ .../coverage-llvmir/Makefile                  |  2 -
+ .../coverage-llvmir/filecheck.testprog.txt    | 18 ++--
+ src/test/ui/llvm-asm/issue-69092.rs           |  4 +-
+ src/test/ui/llvm-asm/issue-69092.stderr       |  4 +-
+ 29 files changed, 200 insertions(+), 167 deletions(-)
+ delete mode 100644 src/test/codegen/issue-83623-SIMD-PartialEq.rs
+
+diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs
+index 5b4a187a1d56..791604a18273 100644
+--- a/compiler/rustc_codegen_llvm/src/back/write.rs
+++ b/compiler/rustc_codegen_llvm/src/back/write.rs
+@@ -296,39 +296,8 @@ fn report_inline_asm(
+     }
+     let (cgcx, _) = *(user as *const (&CodegenContext<LlvmCodegenBackend>, &Handler));
+ 
+-    // Recover the post-substitution assembly code from LLVM for better
+-    // diagnostics.
+-    let mut have_source = false;
+-    let mut buffer = String::new();
+-    let mut level = llvm::DiagnosticLevel::Error;
+-    let mut loc = 0;
+-    let mut ranges = [0; 8];
+-    let mut num_ranges = ranges.len() / 2;
+-    let msg = llvm::build_string(|msg| {
+-        buffer = llvm::build_string(|buffer| {
+-            have_source = llvm::LLVMRustUnpackSMDiagnostic(
+-                diag,
+-                msg,
+-                buffer,
+-                &mut level,
+-                &mut loc,
+-                ranges.as_mut_ptr(),
+-                &mut num_ranges,
+-            );
+-        })
+-        .expect("non-UTF8 inline asm");
+-    })
+-    .expect("non-UTF8 SMDiagnostic");
+-
+-    let source = have_source.then(|| {
+-        let mut spans = vec![InnerSpan::new(loc as usize, loc as usize)];
+-        for i in 0..num_ranges {
+-            spans.push(InnerSpan::new(ranges[i * 2] as usize, ranges[i * 2 + 1] as usize));
+-        }
+-        (buffer, spans)
+-    });
+-
+-    report_inline_asm(cgcx, msg, level, cookie, source);
+    let smdiag = llvm::diagnostic::SrcMgrDiagnostic::unpack(diag);
+    report_inline_asm(cgcx, smdiag.message, smdiag.level, cookie, smdiag.source);
+ }
+ 
+ unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void) {
+@@ -339,13 +308,7 @@ fn report_inline_asm(
+ 
+     match llvm::diagnostic::Diagnostic::unpack(info) {
+         llvm::diagnostic::InlineAsm(inline) => {
+-            report_inline_asm(
+-                cgcx,
+-                llvm::twine_to_string(inline.message),
+-                inline.level,
+-                inline.cookie,
+-                None,
+-            );
+            report_inline_asm(cgcx, inline.message, inline.level, inline.cookie, inline.source);
+         }
+ 
+         llvm::diagnostic::Optimization(opt) => {
+diff --git a/compiler/rustc_codegen_llvm/src/base.rs b/compiler/rustc_codegen_llvm/src/base.rs
+index cc3cbea4def5..a6bdbd11899d 100644
+--- a/compiler/rustc_codegen_llvm/src/base.rs
+++ b/compiler/rustc_codegen_llvm/src/base.rs
+@@ -157,16 +157,18 @@ fn module_codegen(tcx: TyCtxt<'_>, cgu_name: Symbol) -> ModuleCodegen<ModuleLlvm
+             }
+ 
+             // Finalize code coverage by injecting the coverage map. Note, the coverage map will
+-            // also be added to the `llvm.used` variable, created next.
+            // also be added to the `llvm.compiler.used` variable, created next.
+             if cx.sess().instrument_coverage() {
+                 cx.coverageinfo_finalize();
+             }
+ 
+-            // Create the llvm.used variable
+-            // This variable has type [N x i8*] and is stored in the llvm.metadata section
+            // Create the llvm.used and llvm.compiler.used variables.
+             if !cx.used_statics().borrow().is_empty() {
+                 cx.create_used_variable()
+             }
+            if !cx.compiler_used_statics().borrow().is_empty() {
+                cx.create_compiler_used_variable()
+            }
+ 
+             // Finalize debuginfo
+             if cx.sess().opts.debuginfo != DebugInfo::None {
+diff --git a/compiler/rustc_codegen_llvm/src/consts.rs b/compiler/rustc_codegen_llvm/src/consts.rs
+index 3ca295f4a7e8..e1baf95e1d9e 100644
+--- a/compiler/rustc_codegen_llvm/src/consts.rs
+++ b/compiler/rustc_codegen_llvm/src/consts.rs
+@@ -474,7 +474,13 @@ fn codegen_static(&self, def_id: DefId, is_mutable: bool) {
+             }
+ 
+             if attrs.flags.contains(CodegenFnAttrFlags::USED) {
+-                self.add_used_global(g);
+                // The semantics of #[used] in Rust only require the symbol to make it into the
+                // object file. It is explicitly allowed for the linker to strip the symbol if it
+                // is dead. As such, use llvm.compiler.used instead of llvm.used.
+                // Additionally, https://reviews.llvm.org/D97448 in LLVM 13 started emitting unique
+                // sections with SHF_GNU_RETAIN flag for llvm.used symbols, which may trigger bugs
+                // in some versions of the gold linker.
+                self.add_compiler_used_global(g);
+             }
+         }
+     }
+@@ -484,4 +490,11 @@ fn add_used_global(&self, global: &'ll Value) {
+         let cast = unsafe { llvm::LLVMConstPointerCast(global, self.type_i8p()) };
+         self.used_statics.borrow_mut().push(cast);
+     }
+
+    /// Add a global value to a list to be stored in the `llvm.compiler.used` variable,
+    /// an array of i8*.
+    fn add_compiler_used_global(&self, global: &'ll Value) {
+        let cast = unsafe { llvm::LLVMConstPointerCast(global, self.type_i8p()) };
+        self.compiler_used_statics.borrow_mut().push(cast);
+    }
+ }
+diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
+index 59259857b4b0..027fb2b7e00c 100644
+--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
+@@ -74,6 +74,10 @@ pub struct CodegenCx<'ll, 'tcx> {
+     /// See <https://llvm.org/docs/LangRef.html#the-llvm-used-global-variable> for details
+     pub used_statics: RefCell<Vec<&'ll Value>>,
+ 
+    /// Statics that will be placed in the llvm.compiler.used variable
+    /// See <https://llvm.org/docs/LangRef.html#the-llvm-compiler-used-global-variable> for details
+    pub compiler_used_statics: RefCell<Vec<&'ll Value>>,
+
+     pub lltypes: RefCell<FxHashMap<(Ty<'tcx>, Option<VariantIdx>), &'ll Type>>,
+     pub scalar_lltypes: RefCell<FxHashMap<Ty<'tcx>, &'ll Type>>,
+     pub pointee_infos: RefCell<FxHashMap<(Ty<'tcx>, Size), Option<PointeeInfo>>>,
+@@ -101,10 +105,6 @@ fn to_llvm_tls_model(tls_model: TlsModel) -> llvm::ThreadLocalMode {
+     }
+ }
+ 
+-fn strip_powerpc64_vectors(data_layout: String) -> String {
+-    data_layout.replace("-v256:256:256-v512:512:512", "")
+-}
+-
+ pub unsafe fn create_module(
+     tcx: TyCtxt<'_>,
+     llcx: &'ll llvm::Context,
+@@ -116,7 +116,18 @@ pub unsafe fn create_module(
+ 
+     let mut target_data_layout = sess.target.data_layout.clone();
+     if llvm_util::get_version() < (12, 0, 0) && sess.target.arch == "powerpc64" {
+-        target_data_layout = strip_powerpc64_vectors(target_data_layout);
+        target_data_layout = target_data_layout.replace("-v256:256:256-v512:512:512", "");
+    }
+    if llvm_util::get_version() < (13, 0, 0) {
+        if sess.target.arch == "powerpc64" {
+            target_data_layout = target_data_layout.replace("-S128", "");
+        }
+        if sess.target.arch == "wasm32" {
+            target_data_layout = "e-m:e-p:32:32-i64:64-n32:64-S128".to_string();
+        }
+        if sess.target.arch == "wasm64" {
+            target_data_layout = "e-m:e-p:64:64-i64:64-n32:64-S128".to_string();
+        }
+     }
+ 
+     // Ensure the data-layout values hardcoded remain the defaults.
+@@ -304,6 +315,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> {
+             const_globals: Default::default(),
+             statics_to_rauw: RefCell::new(Vec::new()),
+             used_statics: RefCell::new(Vec::new()),
+            compiler_used_statics: RefCell::new(Vec::new()),
+             lltypes: Default::default(),
+             scalar_lltypes: Default::default(),
+             pointee_infos: Default::default(),
+@@ -326,6 +338,18 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> {
+     pub fn coverage_context(&'a self) -> Option<&'a coverageinfo::CrateCoverageContext<'ll, 'tcx>> {
+         self.coverage_cx.as_ref()
+     }
+
+    fn create_used_variable_impl(&self, name: &'static CStr, values: &[&'ll Value]) {
+        let section = cstr!("llvm.metadata");
+        let array = self.const_array(&self.type_ptr_to(self.type_i8()), values);
+
+        unsafe {
+            let g = llvm::LLVMAddGlobal(self.llmod, self.val_ty(array), name.as_ptr());
+            llvm::LLVMSetInitializer(g, array);
+            llvm::LLVMRustSetLinkage(g, llvm::Linkage::AppendingLinkage);
+            llvm::LLVMSetSection(g, section.as_ptr());
+        }
+    }
+ }
+ 
+ impl MiscMethods<'tcx> for CodegenCx<'ll, 'tcx> {
+@@ -416,6 +440,10 @@ fn used_statics(&self) -> &RefCell<Vec<&'ll Value>> {
+         &self.used_statics
+     }
+ 
+    fn compiler_used_statics(&self) -> &RefCell<Vec<&'ll Value>> {
+        &self.compiler_used_statics
+    }
+
+     fn set_frame_pointer_type(&self, llfn: &'ll Value) {
+         attributes::set_frame_pointer_type(self, llfn)
+     }
+@@ -426,17 +454,14 @@ fn apply_target_cpu_attr(&self, llfn: &'ll Value) {
+     }
+ 
+     fn create_used_variable(&self) {
+-        let name = cstr!("llvm.used");
+-        let section = cstr!("llvm.metadata");
+-        let array =
+-            self.const_array(&self.type_ptr_to(self.type_i8()), &*self.used_statics.borrow());
+        self.create_used_variable_impl(cstr!("llvm.used"), &*self.used_statics.borrow());
+    }
+ 
+-        unsafe {
+-            let g = llvm::LLVMAddGlobal(self.llmod, self.val_ty(array), name.as_ptr());
+-            llvm::LLVMSetInitializer(g, array);
+-            llvm::LLVMRustSetLinkage(g, llvm::Linkage::AppendingLinkage);
+-            llvm::LLVMSetSection(g, section.as_ptr());
+-        }
+    fn create_compiler_used_variable(&self) {
+        self.create_used_variable_impl(
+            cstr!("llvm.compiler.used"),
+            &*self.compiler_used_statics.borrow(),
+        );
+     }
+ 
+     fn declare_c_main(&self, fn_type: Self::Type) -> Option<Self::Function> {
+diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs
+index aa4db1622b23..1e6e5252b25d 100644
+--- a/compiler/rustc_codegen_llvm/src/lib.rs
+++ b/compiler/rustc_codegen_llvm/src/lib.rs
+@@ -352,8 +352,8 @@ fn llmod(&self) -> &llvm::Module {
+ impl Drop for ModuleLlvm {
+     fn drop(&mut self) {
+         unsafe {
+-            llvm::LLVMContextDispose(&mut *(self.llcx as *mut _));
+             llvm::LLVMRustDisposeTargetMachine(&mut *(self.tm as *mut _));
+            llvm::LLVMContextDispose(&mut *(self.llcx as *mut _));
+         }
+     }
+ }
+diff --git a/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs b/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs
+index ccd3e42e458f..36aa022d7465 100644
+--- a/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs
+@@ -6,7 +6,8 @@
+ use crate::value::Value;
+ use libc::c_uint;
+ 
+-use super::{DiagnosticInfo, Twine};
+use super::{DiagnosticInfo, SMDiagnostic};
+use rustc_span::InnerSpan;
+ 
+ #[derive(Copy, Clone)]
+ pub enum OptimizationDiagnosticKind {
+@@ -86,36 +87,91 @@ unsafe fn unpack(kind: OptimizationDiagnosticKind, di: &'ll DiagnosticInfo) -> S
+     }
+ }
+ 
+-#[derive(Copy, Clone)]
+-pub struct InlineAsmDiagnostic<'ll> {
+pub struct SrcMgrDiagnostic {
+    pub level: super::DiagnosticLevel,
+    pub message: String,
+    pub source: Option<(String, Vec<InnerSpan>)>,
+}
+
+impl SrcMgrDiagnostic {
+    pub unsafe fn unpack(diag: &SMDiagnostic) -> SrcMgrDiagnostic {
+        // Recover the post-substitution assembly code from LLVM for better
+        // diagnostics.
+        let mut have_source = false;
+        let mut buffer = String::new();
+        let mut level = super::DiagnosticLevel::Error;
+        let mut loc = 0;
+        let mut ranges = [0; 8];
+        let mut num_ranges = ranges.len() / 2;
+        let message = super::build_string(|message| {
+            buffer = super::build_string(|buffer| {
+                have_source = super::LLVMRustUnpackSMDiagnostic(
+                    diag,
+                    message,
+                    buffer,
+                    &mut level,
+                    &mut loc,
+                    ranges.as_mut_ptr(),
+                    &mut num_ranges,
+                );
+            })
+            .expect("non-UTF8 inline asm");
+        })
+        .expect("non-UTF8 SMDiagnostic");
+
+        SrcMgrDiagnostic {
+            message,
+            level,
+            source: have_source.then(|| {
+                let mut spans = vec![InnerSpan::new(loc as usize, loc as usize)];
+                for i in 0..num_ranges {
+                    spans.push(InnerSpan::new(ranges[i * 2] as usize, ranges[i * 2 + 1] as usize));
+                }
+                (buffer, spans)
+            }),
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct InlineAsmDiagnostic {
+     pub level: super::DiagnosticLevel,
+     pub cookie: c_uint,
+-    pub message: &'ll Twine,
+-    pub instruction: Option<&'ll Value>,
+    pub message: String,
+    pub source: Option<(String, Vec<InnerSpan>)>,
+ }
+ 
+-impl InlineAsmDiagnostic<'ll> {
+-    unsafe fn unpack(di: &'ll DiagnosticInfo) -> Self {
+impl InlineAsmDiagnostic {
+    unsafe fn unpackInlineAsm(di: &'ll DiagnosticInfo) -> Self {
+         let mut cookie = 0;
+         let mut message = None;
+-        let mut instruction = None;
+         let mut level = super::DiagnosticLevel::Error;
+ 
+-        super::LLVMRustUnpackInlineAsmDiagnostic(
+-            di,
+-            &mut level,
+-            &mut cookie,
+-            &mut message,
+-            &mut instruction,
+-        );
+        super::LLVMRustUnpackInlineAsmDiagnostic(di, &mut level, &mut cookie, &mut message);
+ 
+-        InlineAsmDiagnostic { level, cookie, message: message.unwrap(), instruction }
+        InlineAsmDiagnostic {
+            level,
+            cookie,
+            message: super::twine_to_string(message.unwrap()),
+            source: None,
+        }
+    }
+
+    unsafe fn unpackSrcMgr(di: &'ll DiagnosticInfo) -> Self {
+        let mut cookie = 0;
+        let smdiag = SrcMgrDiagnostic::unpack(super::LLVMRustGetSMDiagnostic(di, &mut cookie));
+        InlineAsmDiagnostic {
+            level: smdiag.level,
+            cookie,
+            message: smdiag.message,
+            source: smdiag.source,
+        }
+     }
+ }
+ 
+ pub enum Diagnostic<'ll> {
+     Optimization(OptimizationDiagnostic<'ll>),
+-    InlineAsm(InlineAsmDiagnostic<'ll>),
+    InlineAsm(InlineAsmDiagnostic),
+     PGO(&'ll DiagnosticInfo),
+     Linker(&'ll DiagnosticInfo),
+     Unsupported(&'ll DiagnosticInfo),
+@@ -130,7 +186,7 @@ pub unsafe fn unpack(di: &'ll DiagnosticInfo) -> Self {
+         let kind = super::LLVMRustGetDiagInfoKind(di);
+ 
+         match kind {
+-            Dk::InlineAsm => InlineAsm(InlineAsmDiagnostic::unpack(di)),
+            Dk::InlineAsm => InlineAsm(InlineAsmDiagnostic::unpackInlineAsm(di)),
+ 
+             Dk::OptimizationRemark => {
+                 Optimization(OptimizationDiagnostic::unpack(OptimizationRemark, di))
+@@ -162,6 +218,8 @@ pub unsafe fn unpack(di: &'ll DiagnosticInfo) -> Self {
+             Dk::Linker => Linker(di),
+             Dk::Unsupported => Unsupported(di),
+ 
+            Dk::SrcMgr => InlineAsm(InlineAsmDiagnostic::unpackSrcMgr(di)),
+
+             _ => UnknownDiagnostic(di),
+         }
+     }
+diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+index 68d566cca095..7d5388b9abb8 100644
+--- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+@@ -490,6 +490,7 @@ pub enum DiagnosticKind {
+     PGOProfile,
+     Linker,
+     Unsupported,
+    SrcMgr,
+ }
+ 
+ /// LLVMRustDiagnosticLevel
+@@ -2258,13 +2259,17 @@ pub fn LLVMRustUnpackInlineAsmDiagnostic(
+         level_out: &mut DiagnosticLevel,
+         cookie_out: &mut c_uint,
+         message_out: &mut Option<&'a Twine>,
+-        instruction_out: &mut Option<&'a Value>,
+     );
+ 
+     #[allow(improper_ctypes)]
+     pub fn LLVMRustWriteDiagnosticInfoToString(DI: &DiagnosticInfo, s: &RustString);
+     pub fn LLVMRustGetDiagInfoKind(DI: &DiagnosticInfo) -> DiagnosticKind;
+ 
+    pub fn LLVMRustGetSMDiagnostic(
+        DI: &'a DiagnosticInfo,
+        cookie_out: &mut c_uint,
+    ) -> &'a SMDiagnostic;
+
+     pub fn LLVMRustSetInlineAsmDiagnosticHandler(
+         C: &Context,
+         H: InlineAsmDiagHandler,
+diff --git a/compiler/rustc_codegen_ssa/src/traits/misc.rs b/compiler/rustc_codegen_ssa/src/traits/misc.rs
+index 46f2adbe5520..4266e42ec2b5 100644
+--- a/compiler/rustc_codegen_ssa/src/traits/misc.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/misc.rs
+@@ -16,9 +16,11 @@ fn vtables(
+     fn sess(&self) -> &Session;
+     fn codegen_unit(&self) -> &'tcx CodegenUnit<'tcx>;
+     fn used_statics(&self) -> &RefCell<Vec<Self::Value>>;
+    fn compiler_used_statics(&self) -> &RefCell<Vec<Self::Value>>;
+     fn set_frame_pointer_type(&self, llfn: Self::Function);
+     fn apply_target_cpu_attr(&self, llfn: Self::Function);
+     fn create_used_variable(&self);
+    fn create_compiler_used_variable(&self);
+     /// Declares the extern "C" main function for the entry point. Returns None if the symbol already exists.
+     fn declare_c_main(&self, fn_type: Self::Type) -> Option<Self::Function>;
+ }
+diff --git a/compiler/rustc_codegen_ssa/src/traits/statics.rs b/compiler/rustc_codegen_ssa/src/traits/statics.rs
+index 817fc02d166a..a2a3cb56c780 100644
+--- a/compiler/rustc_codegen_ssa/src/traits/statics.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/statics.rs
+@@ -6,17 +6,15 @@ pub trait StaticMethods: BackendTypes {
+     fn static_addr_of(&self, cv: Self::Value, align: Align, kind: Option<&str>) -> Self::Value;
+     fn codegen_static(&self, def_id: DefId, is_mutable: bool);
+ 
+-    /// Mark the given global value as "used", to prevent a backend from potentially removing a
+-    /// static variable that may otherwise appear unused.
+-    ///
+-    /// Static variables in Rust can be annotated with the `#[used]` attribute to direct the `rustc`
+-    /// compiler to mark the variable as a "used global".
+-    ///
+-    /// ```no_run
+-    /// #[used]
+-    /// static FOO: u32 = 0;
+-    /// ```
+    /// Mark the given global value as "used", to prevent the compiler and linker from potentially
+    /// removing a static variable that may otherwise appear unused.
+     fn add_used_global(&self, global: Self::Value);
+
+    /// Same as add_used_global(), but only prevent the compiler from potentially removing an
+    /// otherwise unused symbol. The linker is still permitted to drop it.
+    ///
+    /// This corresponds to the semantics of the `#[used]` attribute.
+    fn add_compiler_used_global(&self, global: Self::Value);
+ }
+ 
+ pub trait StaticBuilderMethods: BackendTypes {
+diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs
+index 95504723e7b2..690a6f541ff3 100644
+--- a/compiler/rustc_feature/src/accepted.rs
+++ b/compiler/rustc_feature/src/accepted.rs
+@@ -178,7 +178,7 @@ macro_rules! declare_features {
+     /// Allows annotating functions conforming to `fn(&PanicInfo) -> !` with `#[panic_handler]`.
+     /// This defines the behavior of panics.
+     (accepted, panic_handler, "1.30.0", Some(44489), None),
+-    /// Allows `#[used]` to preserve symbols (see llvm.used).
+    /// Allows `#[used]` to preserve symbols (see llvm.compiler.used).
+     (accepted, used, "1.30.0", Some(40289), None),
+     /// Allows `crate` in paths.
+     (accepted, crate_in_paths, "1.30.0", Some(45477), None),
+diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+index 4cdc8a4155bc..fa47dc9caa0b 100644
+--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+@@ -1114,15 +1114,13 @@ extern "C" void
+ LLVMRustUnpackInlineAsmDiagnostic(LLVMDiagnosticInfoRef DI,
+                                   LLVMRustDiagnosticLevel *LevelOut,
+                                   unsigned *CookieOut,
+-                                  LLVMTwineRef *MessageOut,
+-                                  LLVMValueRef *InstructionOut) {
+                                  LLVMTwineRef *MessageOut) {
+   // Undefined to call this not on an inline assembly diagnostic!
+   llvm::DiagnosticInfoInlineAsm *IA =
+       static_cast<llvm::DiagnosticInfoInlineAsm *>(unwrap(DI));
+ 
+   *CookieOut = IA->getLocCookie();
+   *MessageOut = wrap(&IA->getMsgStr());
+-  *InstructionOut = wrap(IA->getInstruction());
+ 
+   switch (IA->getSeverity()) {
+     case DS_Error:
+@@ -1165,6 +1163,7 @@ enum class LLVMRustDiagnosticKind {
+   PGOProfile,
+   Linker,
+   Unsupported,
+  SrcMgr,
+ };
+ 
+ static LLVMRustDiagnosticKind toRust(DiagnosticKind Kind) {
+@@ -1193,6 +1192,10 @@ static LLVMRustDiagnosticKind toRust(DiagnosticKind Kind) {
+     return LLVMRustDiagnosticKind::Linker;
+   case DK_Unsupported:
+     return LLVMRustDiagnosticKind::Unsupported;
+#if LLVM_VERSION_GE(13, 0)
+  case DK_SrcMgr:
+    return LLVMRustDiagnosticKind::SrcMgr;
+#endif
+   default:
+     return (Kind >= DK_FirstRemark && Kind <= DK_LastRemark)
+                ? LLVMRustDiagnosticKind::OptimizationRemarkOther
+@@ -1280,6 +1283,17 @@ extern "C" void LLVMRustSetInlineAsmDiagnosticHandler(
+ #endif
+ }
+ 
+extern "C" LLVMSMDiagnosticRef LLVMRustGetSMDiagnostic(
+    LLVMDiagnosticInfoRef DI, unsigned *Cookie) {
+#if LLVM_VERSION_GE(13, 0)
+  llvm::DiagnosticInfoSrcMgr *SM = static_cast<llvm::DiagnosticInfoSrcMgr *>(unwrap(DI));
+  *Cookie = SM->getLocCookie();
+  return wrap(&SM->getSMDiag());
+#else
+  report_fatal_error("Shouldn't get called on older versions");
+#endif
+}
+
+ extern "C" bool LLVMRustUnpackSMDiagnostic(LLVMSMDiagnosticRef DRef,
+                                            RustStringRef MessageOut,
+                                            RustStringRef BufferOut,
+diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
+index 559a1a40868f..f10d4d49bb90 100644
+--- a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
+@@ -14,7 +14,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "powerpc64-unknown-linux-gnu".to_string(),
+         pointer_width: 64,
+-        data_layout: "E-m:e-i64:64-n32:64-v256:256:256-v512:512:512".to_string(),
+        data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".to_string(),
+         arch: "powerpc64".to_string(),
+         options: TargetOptions { endian: Endian::Big, mcount: "_mcount".to_string(), ..base },
+     }
+diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs
+index f1190b159aba..611621727bd1 100644
+--- a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs
+@@ -10,7 +10,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "powerpc64-unknown-linux-musl".to_string(),
+         pointer_width: 64,
+-        data_layout: "E-m:e-i64:64-n32:64-v256:256:256-v512:512:512".to_string(),
+        data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".to_string(),
+         arch: "powerpc64".to_string(),
+         options: TargetOptions { endian: Endian::Big, mcount: "_mcount".to_string(), ..base },
+     }
+diff --git a/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs
+index 3ebc5469e0a8..9c63997ce2f9 100644
+--- a/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs
+@@ -10,7 +10,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "powerpc64-unknown-linux-gnu".to_string(),
+         pointer_width: 64,
+-        data_layout: "E-m:e-i64:64-n32:64-v256:256:256-v512:512:512".to_string(),
+        data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".to_string(),
+         arch: "powerpc64".to_string(),
+         options: TargetOptions { endian: Endian::Big, ..base },
+     }
+diff --git a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs
+index 76f70e474f07..f645eceadfe3 100644
+--- a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs
+++ b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs
+@@ -9,7 +9,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "powerpc64le-unknown-linux-gnu".to_string(),
+         pointer_width: 64,
+-        data_layout: "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512".to_string(),
+        data_layout: "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".to_string(),
+         arch: "powerpc64".to_string(),
+         options: TargetOptions { mcount: "_mcount".to_string(), ..base },
+     }
+diff --git a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs
+index 42c49103b3b4..934371fb2211 100644
+--- a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs
+++ b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs
+@@ -9,7 +9,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "powerpc64le-unknown-linux-musl".to_string(),
+         pointer_width: 64,
+-        data_layout: "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512".to_string(),
+        data_layout: "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".to_string(),
+         arch: "powerpc64".to_string(),
+         options: TargetOptions { mcount: "_mcount".to_string(), ..base },
+     }
+diff --git a/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs b/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs
+index 302139395d31..86b1a7552335 100644
+--- a/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs
+++ b/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs
+@@ -43,7 +43,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "wasm32-unknown-emscripten".to_string(),
+         pointer_width: 32,
+-        data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128".to_string(),
+        data_layout: "e-m:e-p:32:32-i64:64-f128:64-n32:64-S128-ni:1:10:20".to_string(),
+         arch: "wasm32".to_string(),
+         options: opts,
+     }
+diff --git a/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
+index 834c4dbfc05f..134c6803b15d 100644
+--- a/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
+++ b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
+@@ -54,7 +54,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "wasm32-unknown-unknown".to_string(),
+         pointer_width: 32,
+-        data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128".to_string(),
+        data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128-ni:1:10:20".to_string(),
+         arch: "wasm32".to_string(),
+         options,
+     }
+diff --git a/compiler/rustc_target/src/spec/wasm32_wasi.rs b/compiler/rustc_target/src/spec/wasm32_wasi.rs
+index a6b12d2ee8f6..2dab206dc760 100644
+--- a/compiler/rustc_target/src/spec/wasm32_wasi.rs
+++ b/compiler/rustc_target/src/spec/wasm32_wasi.rs
+@@ -109,7 +109,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "wasm32-wasi".to_string(),
+         pointer_width: 32,
+-        data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128".to_string(),
+        data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128-ni:1:10:20".to_string(),
+         arch: "wasm32".to_string(),
+         options,
+     }
+diff --git a/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs b/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs
+index 8bfb229d77f6..fb6526c0e720 100644
+--- a/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs
+++ b/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs
+@@ -32,7 +32,7 @@ pub fn target() -> Target {
+     Target {
+         llvm_target: "wasm64-unknown-unknown".to_string(),
+         pointer_width: 64,
+-        data_layout: "e-m:e-p:64:64-i64:64-n32:64-S128".to_string(),
+        data_layout: "e-m:e-p:64:64-i64:64-n32:64-S128-ni:1:10:20".to_string(),
+         arch: "wasm64".to_string(),
+         options,
+     }
+diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
+index 1be414b29a1a..63a252154b90 100644
+--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
+@@ -174,6 +174,7 @@ fn run(self, builder: &Builder<'_>) -> PathBuf {
+             .define("LLVM_INCLUDE_EXAMPLES", "OFF")
+             .define("LLVM_INCLUDE_DOCS", "OFF")
+             .define("LLVM_INCLUDE_BENCHMARKS", "OFF")
+            .define("LLVM_INCLUDE_TESTS", "OFF")
+             .define("LLVM_ENABLE_TERMINFO", "OFF")
+             .define("LLVM_ENABLE_LIBEDIT", "OFF")
+             .define("LLVM_ENABLE_BINDINGS", "OFF")
+diff --git a/src/test/codegen/array-equality.rs b/src/test/codegen/array-equality.rs
+index 4b60fa4b0bff..fefc232b4904 100644
+--- a/src/test/codegen/array-equality.rs
+++ b/src/test/codegen/array-equality.rs
+@@ -29,7 +29,7 @@
+     // CHECK-NEXT: start:
+     // CHECK-NEXT: bitcast
+     // CHECK-NEXT: bitcast
+-    // CHECK-NEXT: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(i8* nonnull dereferenceable(18) %{{.+}}, i8* nonnull dereferenceable(18) %{{.+}}, i64 18)
+    // CHECK-NEXT: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(i8* {{.*}} dereferenceable(18) %{{.+}}, i8* {{.*}} dereferenceable(18) %{{.+}}, i64 18)
+     // CHECK-NEXT: %[[EQ:.+]] = icmp eq i32 %[[CMP]], 0
+     // CHECK-NEXT: ret i1 %[[EQ]]
+     a == b
+@@ -41,7 +41,7 @@
+     // CHECK-NEXT: start:
+     // CHECK-NEXT: bitcast
+     // CHECK-NEXT: bitcast
+-    // CHECK-NEXT: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(i8* nonnull dereferenceable(2468) %{{.+}}, i8* nonnull dereferenceable(2468) %{{.+}}, i64 2468)
+    // CHECK-NEXT: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(i8* {{.*}} dereferenceable(2468) %{{.+}}, i8* {{.*}} dereferenceable(2468) %{{.+}}, i64 2468)
+     // CHECK-NEXT: %[[EQ:.+]] = icmp eq i32 %[[CMP]], 0
+     // CHECK-NEXT: ret i1 %[[EQ]]
+     a == b
+diff --git a/src/test/codegen/issue-83623-SIMD-PartialEq.rs b/src/test/codegen/issue-83623-SIMD-PartialEq.rs
+deleted file mode 100644
+index b22b7f52402d..000000000000
+--- a/src/test/codegen/issue-83623-SIMD-PartialEq.rs
+++ /dev/null
+@@ -1,46 +0,0 @@
+-// This test checks that jumps generated by logical operators can be optimized away
+-
+-// compile-flags: -Copt-level=3
+-// only-64bit
+-
+-#![crate_type="lib"]
+-
+-pub struct Blueprint {
+-    pub fuel_tank_size: u32,
+-    pub payload: u32,
+-    pub wheel_diameter: u32,
+-    pub wheel_width: u32,
+-    pub storage: u32,
+-}
+-
+-// && chains should not prevent SIMD optimizations for primitives
+-impl PartialEq for Blueprint{
+-    fn eq(&self, other: &Self)->bool{
+-       // CHECK-NOT: call{{.*}}bcmp
+-       // CHECK-NOT: call{{.*}}memcmp
+-       // CHECK-NOT: br {{.*}}
+-       self.fuel_tank_size == other.fuel_tank_size
+-            && self.payload == other.payload
+-            && self.wheel_diameter == other.wheel_diameter
+-            && self.wheel_width == other.wheel_width
+-            && self.storage == other.storage
+-    }
+-}
+-
+-#[derive(PartialEq)]
+-pub struct Blueprint2 {
+-    pub fuel_tank_size: u32,
+-    pub payload: u32,
+-    pub wheel_diameter: u32,
+-    pub wheel_width: u32,
+-    pub storage: u32,
+-}
+-
+-// Derived PartialEq should not generate jumps and should use SIMD
+-#[no_mangle]
+-pub fn partial_eq_should_not_jump(a: &Blueprint2, b:&Blueprint2)->bool{
+-    // CHECK-NOT: call{{.*}}bcmp
+-    // CHECK-NOT: call{{.*}}memcmp
+-    // CHECK-NOT: br {{.*}}
+-    a==b
+-}
+diff --git a/src/test/codegen/repeat-trusted-len.rs b/src/test/codegen/repeat-trusted-len.rs
+index 9e904fc82ab4..cb2d0ef809af 100644
+--- a/src/test/codegen/repeat-trusted-len.rs
+++ b/src/test/codegen/repeat-trusted-len.rs
+@@ -8,6 +8,6 @@
+ // CHECK-LABEL: @repeat_take_collect
+ #[no_mangle]
+ pub fn repeat_take_collect() -> Vec<u8> {
+-// CHECK: call void @llvm.memset.p0i8.i{{[0-9]+}}(i8* {{(nonnull )?}}align 1{{.*}} %{{[0-9]+}}, i8 42, i{{[0-9]+}} 100000, i1 false)
+// CHECK: call void @llvm.memset.p0i8.i{{[0-9]+}}(i8* {{.*}}align 1{{.*}} %{{[0-9]+}}, i8 42, i{{[0-9]+}} 100000, i1 false)
+     iter::repeat(42).take(100000).collect()
+ }
+diff --git a/src/test/run-make-fulldeps/coverage-llvmir/Makefile b/src/test/run-make-fulldeps/coverage-llvmir/Makefile
+index 7d9121ee2f83..1ff1ffcc4b0b 100644
+--- a/src/test/run-make-fulldeps/coverage-llvmir/Makefile
+++ b/src/test/run-make-fulldeps/coverage-llvmir/Makefile
+@@ -22,7 +22,6 @@ DEFINE_INTERNAL=define internal
+ ifdef IS_WINDOWS
+ 	LLVM_FILECHECK_OPTIONS=\
+ 		-check-prefixes=CHECK,WINDOWS \
+-		-DPRIVATE_GLOBAL='internal global' \
+ 		-DDEFINE_INTERNAL='$(DEFINE_INTERNAL)' \
+ 		-DCOMDAT_IF_SUPPORTED='$(COMDAT_IF_SUPPORTED)' \
+ 		-DINSTR_PROF_DATA='.lprfd$$M' \
+@@ -36,7 +35,6 @@ ifdef IS_WINDOWS
+ else
+ 	LLVM_FILECHECK_OPTIONS=\
+ 		-check-prefixes=CHECK \
+-		-DPRIVATE_GLOBAL='private global' \
+ 		-DDEFINE_INTERNAL='$(DEFINE_INTERNAL)' \
+ 		-DCOMDAT_IF_SUPPORTED='$(COMDAT_IF_SUPPORTED)' \
+ 		-DINSTR_PROF_DATA='$(DATA_SECTION_PREFIX)__llvm_prf_data$(INSTR_PROF_DATA_SUFFIX)' \
+diff --git a/src/test/run-make-fulldeps/coverage-llvmir/filecheck.testprog.txt b/src/test/run-make-fulldeps/coverage-llvmir/filecheck.testprog.txt
+index a312ec48e849..8e5f21046877 100644
+--- a/src/test/run-make-fulldeps/coverage-llvmir/filecheck.testprog.txt
+++ b/src/test/run-make-fulldeps/coverage-llvmir/filecheck.testprog.txt
+@@ -11,27 +11,25 @@ CHECK-SAME:   section "[[INSTR_PROF_COVMAP]]", align 8
+ 
+ WINDOWS:      @__llvm_profile_runtime = external global i32
+ 
+-CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = [[PRIVATE_GLOBAL]]
+-CHECK-SAME:   section "[[INSTR_PROF_CNTS]]", align 8
+CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = {{private|internal}} global
+CHECK-SAME:   section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
+ 
+-CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = [[PRIVATE_GLOBAL]]
+CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = {{private|internal}} global
+ CHECK-SAME:   @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called,
+-CHECK-SAME:   section "[[INSTR_PROF_DATA]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
+ 
+-CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog4main = [[PRIVATE_GLOBAL]]
+-CHECK-SAME:   section "[[INSTR_PROF_CNTS]]", align 8
+CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog4main = {{private|internal}} global
+CHECK-SAME:   section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
+ 
+-CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog4main = [[PRIVATE_GLOBAL]]
+CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog4main = {{private|internal}} global
+ CHECK-SAME:   @__profc__R{{[a-zA-Z0-9_]+}}testprog4main,
+-CHECK-SAME:   section "[[INSTR_PROF_DATA]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
+ 
+ CHECK:        @__llvm_prf_nm = private constant
+ CHECK-SAME:   section "[[INSTR_PROF_NAME]]", align 1
+ 
+ CHECK:        @llvm.used = appending global
+ CHECK-SAME:   i8* bitcast ({ {{.*}} }* @__llvm_coverage_mapping to i8*)
+-WINDOWS-SAME: i8* bitcast (i32 ()* @__llvm_profile_runtime_user to i8*)
+-CHECK-SAME:   i8* bitcast ({ {{.*}} }* @__profd__R{{[a-zA-Z0-9_]*}}testprog4main to i8*)
+ CHECK-SAME:   i8* getelementptr inbounds ({{.*}}* @__llvm_prf_nm, i32 0, i32 0)
+ CHECK-SAME:   section "llvm.metadata"
+ 
+diff --git a/src/test/ui/llvm-asm/issue-69092.rs b/src/test/ui/llvm-asm/issue-69092.rs
+index 96c019b760e9..8260e7204686 100644
+--- a/src/test/ui/llvm-asm/issue-69092.rs
+++ b/src/test/ui/llvm-asm/issue-69092.rs
+@@ -1,10 +1,12 @@
+ // build-fail
+ // ignore-emscripten no asm! support
+// The error message differs slightly between LLVM versions
+// min-llvm-version: 13.0
+ // Regression test for #69092
+ 
+ #![feature(llvm_asm)]
+ 
+ fn main() {
+     unsafe { llvm_asm!(".ascii \"Xen\0\""); }
+-    //~^ ERROR: expected string in '.ascii' directive
+    //~^ ERROR: expected string
+ }
+diff --git a/src/test/ui/llvm-asm/issue-69092.stderr b/src/test/ui/llvm-asm/issue-69092.stderr
+index 2ca86cf7c1b9..9bce1c0b346f 100644
+--- a/src/test/ui/llvm-asm/issue-69092.stderr
+++ b/src/test/ui/llvm-asm/issue-69092.stderr
+@@ -1,5 +1,5 @@
+-error: expected string in '.ascii' directive
+-  --> $DIR/issue-69092.rs:8:14
+error: expected string
+  --> $DIR/issue-69092.rs:10:14
+    |
+ LL |     unsafe { llvm_asm!(".ascii \"Xen\0\""); }
+    |              ^
+-- 
+2.33.0
+
--- a/SPECS/rust.spec
+++ b/SPECS/rust.spec
@ -10,19 +10,32 @@
 # e.g. 1.10.0 wants rustc: 1.9.0-2016-05-24
 # or nightly wants some beta-YYYY-MM-DD
 # Note that cargo matches the program version here, not its crate version.
-%global bootstrap_rust 1.50.0
-%global bootstrap_cargo 1.50.0
-%global bootstrap_channel 1.50.0
-%global bootstrap_date 2021-02-11
+%global bootstrap_rust 1.54.0
+%global bootstrap_cargo 1.54.0
+%global bootstrap_channel 1.54.0
+%global bootstrap_date 2021-07-29

 # Only the specified arches will use bootstrap binaries.
 #global bootstrap_arches %%{rust_arches}

+# Define a space-separated list of targets to ship rust-std-static-$triple for
+# cross-compilation. The packages are noarch, but they're not fully
+# reproducible between hosts, so only x86_64 actually builds it.
+#ifarch x86_64
+# FIX: Except on RHEL8 modules, we can't filter a noarch package from shipping
+# on certain arches, namely s390x for its lack of lld. So we need to make it an
+# arch-specific package only for the supported arches.
+%ifnarch s390x
+%if 0%{?fedora} || 0%{?rhel} >= 8
+%global cross_targets wasm32-unknown-unknown
+%endif
+%endif
+
 # Using llvm-static may be helpful as an opt-in, e.g. to aid LLVM rebases.
 %bcond_with llvm_static

 # We can also choose to just use Rust's bundled LLVM, in case the system LLVM
-# is insufficient.  Rust currently requires LLVM 9.0+.
+# is insufficient.  Rust currently requires LLVM 10.0+.
 %bcond_with bundled_llvm

 # Requires stable libgit2 1.1
@ -53,7 +66,7 @@
 %endif

 Name:           rust
-Version:        1.51.0
+Version:        1.55.0
 Release:        1%{?dist}
 Summary:        The Rust Programming Language
 License:        (ASL 2.0 or MIT) and (BSD and MIT)
@ -72,9 +85,11 @@ Source0:        https://static.rust-lang.org/dist/%{rustc_package}.tar.xz
 # https://github.com/rust-lang/rust/issues/80810#issuecomment-781784032
 Patch1:         0001-Revert-Auto-merge-of-79547.patch

-# Fix bootstrap for stage0 rust 1.51
-# https://github.com/rust-lang/rust/pull/81910
-Patch2:         rustc-1.51.0-backport-pr81910.patch
+# By default, rust tries to use "rust-lld" as a linker for WebAssembly.
+Patch2:         0001-Use-lld-provided-by-system-for-wasm.patch
+
+# Backport support for LLVM 13, https://github.com/rust-lang/rust/pull/87570
+Patch3:         rustc-1.55.0-llvm-13.patch

 ### RHEL-specific patches below ###

@ -83,7 +98,7 @@ Patch100:       rustc-1.48.0-disable-libssh2.patch

 # libcurl on RHEL7 doesn't have http2, but since cargo requests it, curl-sys
 # will try to build it statically -- instead we turn off the feature.
-Patch101:       rustc-1.51.0-disable-http2.patch
+Patch101:       rustc-1.55.0-disable-http2.patch

 # kernel rh1410097 causes too-small stacks for PIE.
 # (affects RHEL6 kernels when building for RHEL7)
@ -169,15 +184,11 @@ BuildRequires:  pkgconfig(libssh2) >= 1.6.0
 BuildRequires:  %{python}

 %if %with bundled_llvm
-BuildRequires:  cmake3 >= 3.4.3
-Provides:       bundled(llvm) = 11.0.1
+BuildRequires:  cmake3 >= 3.13.4
+Provides:       bundled(llvm) = 12.0.1
 %else
 BuildRequires:  cmake >= 2.8.11
 %if 0%{?epel} == 7
-%global llvm llvm9.0
-%endif
-%if 0%{?fedora} >= 34
-# we're not ready for llvm-12 yet
 %global llvm llvm11
 %endif
 %if %defined llvm
@ -186,7 +197,7 @@ BuildRequires:  cmake >= 2.8.11
 %global llvm llvm
 %global llvm_root %{_prefix}
 %endif
-BuildRequires:  %{llvm}-devel >= 9.0
+BuildRequires:  %{llvm}-devel >= 10.0
 %if %with llvm_static
 BuildRequires:  %{llvm}-static
 BuildRequires:  libffi-devel
@ -211,6 +222,14 @@ Requires:       %{name}-std-static%{?_isa} = %{version}-%{release}
 # https://github.com/rust-lang/rust/issues/11937
 Requires:       /usr/bin/cc

+%if 0%{?epel} == 7
+%global devtoolset_name devtoolset-9
+BuildRequires:  %{devtoolset_name}-gcc
+BuildRequires:  %{devtoolset_name}-gcc-c++
+%global __cc /opt/rh/%{devtoolset_name}/root/usr/bin/gcc
+%global __cxx /opt/rh/%{devtoolset_name}/root/usr/bin/g++
+%endif
+
 # ALL Rust libraries are private, because they don't keep an ABI.
 %global _privatelibs lib(.*-[[:xdigit:]]{16}*|rustc.*)[.]so.*
 %global __provides_exclude ^(%{_privatelibs})$
@ -239,6 +258,19 @@ Requires:       /usr/bin/cc
 %endif
 %endif

+# We're going to override --libdir when configuring to get rustlib into a
+# common path, but we'll fix the shared libraries during install.
+%global common_libdir %{_prefix}/lib
+%global rustlibdir %{common_libdir}/rustlib
+
+%if %defined cross_targets
+# brp-strip-static-archive breaks the archive index for wasm
+%global __os_install_post \
+%__os_install_post \
+find '%{buildroot}%{rustlibdir}' -type f -path '*/wasm*/lib/*.rlib' -print -exec '%{llvm_root}/bin/llvm-ranlib' '{}' ';' \
+%{nil}
+%endif
+
 %description
 Rust is a systems programming language that runs blazingly fast, prevents
 segfaults, and guarantees thread safety.
@ -253,6 +285,33 @@ Summary:        Standard library for Rust
 This package includes the standard libraries for building applications
 written in Rust.

+%if %defined cross_targets
+%{lua: do
+  for triple in string.gmatch(rpm.expand("%{cross_targets}"), "%S+") do
+    local requires = rpm.expand("Requires: rust = %{version}-%{release}")
+    if string.sub(triple, 1, 4) == "wasm" then
+      requires = requires .. "\nRequires: lld >= 8.0"
+    end
+    local subs = {
+      triple = triple,
+      requires = requires,
+    }
+    local s = string.gsub([[
+%package std-static-{{triple}}
+Summary:        Standard library for Rust
+# FIX: we can't be noarch while excluding s390x for lack of lld
+# BuildArch:      noarch
+{{requires}}
+
+%description std-static-{{triple}}
+This package includes the standard libraries for building applications
+written in Rust for the {{triple}} target.
+]], "{{(%w+)}}", subs)
+    print(s)
+  end
+end}
+%endif
+

 %package debugger-common
 Summary:        Common debugger pretty printers for Rust
@ -411,6 +470,7 @@ test -f '%{local_rust_root}/bin/rustc'

 %patch1 -p1
 %patch2 -p1
+%patch3 -p1

 %if %with disabled_libssh2
 %patch100 -p1
@ -496,11 +556,6 @@ find -name '*.rs' -type f -perm /111 -exec chmod -v -x '{}' '+'
 %build
 export %{rust_env}

-# We're going to override --libdir when configuring to get rustlib into a
-# common path, but we'll fix the shared libraries during install.
-%global common_libdir %{_prefix}/lib
-%global rustlibdir %{common_libdir}/rustlib
-
 %ifarch %{arm} %{ix86} s390x
 # full debuginfo is exhausting memory; just do libstd for now
 # https://github.com/rust-lang/rust/issues/45854
@ -515,13 +570,6 @@ export %{rust_env}
 %define enable_debuginfo --debuginfo-level=2
 %endif

-# We want the best optimization for std, but it caused problems for rpm-ostree
-# on ppc64le to have all of the compiler_builtins in a single object:
-# https://bugzilla.redhat.com/show_bug.cgi?id=1713090
-%ifnarch %{power64}
-%define codegen_units_std --set rust.codegen-units-std=1
-%endif
-
 # Some builders have relatively little memory for their CPU count.
 # At least 2GB per CPU is a good rule of thumb for building rustc.
 ncpus=$(/usr/bin/getconf _NPROCESSORS_ONLN)
@ -533,6 +581,9 @@ fi
 %configure --disable-option-checking \
  --libdir=%{common_libdir} \
  --build=%{rust_triple} --host=%{rust_triple} --target=%{rust_triple} \
+  --set target.%{rust_triple}.linker=%{__cc} \
+  --set target.%{rust_triple}.cc=%{__cc} \
+  --set target.%{rust_triple}.cxx=%{__cxx} \
  --python=%{python} \
  --local-rust-root=%{local_rust_root} \
  %{!?with_bundled_llvm: --llvm-root=%{llvm_root} \
@ -540,6 +591,7 @@ fi
    %{!?with_llvm_static: --enable-llvm-link-shared } } \
  --disable-rpath \
  %{enable_debuginfo} \
+  --set rust.codegen-units-std=1 \
  --enable-extended \
  --tools=analysis,cargo,clippy,rls,rustfmt,src \
  --enable-vendor \
@ -551,12 +603,26 @@ fi
 %{python} ./x.py build -j "$ncpus" --stage 2
 %{python} ./x.py doc --stage 2

+%if %defined cross_targets
+for triple in %{cross_targets}; do
+  %{python} ./x.py build --stage 2 --target=$triple std
+done
+%endif

 %install
 export %{rust_env}

 DESTDIR=%{buildroot} %{python} ./x.py install

+%if %defined cross_targets
+for triple in %{cross_targets}; do
+  DESTDIR=%{buildroot} %{python} ./x.py install --target=$triple std
+done
+%endif
+
+# These are transient files used by x.py dist and install
+rm -rf ./build/dist/ ./build/tmp/
+
 # Make sure the shared libraries are in the proper libdir
 %if "%{_libdir}" != "%{common_libdir}"
 mkdir -p %{buildroot}%{_libdir}
@ -627,9 +693,20 @@ rm -f %{buildroot}%{rustlibdir}/%{rust_triple}/bin/rust-ll*
 %check
 export %{rust_env}

+# Sanity-check the installed binaries, debuginfo-stripped and all.
+%{buildroot}%{_bindir}/cargo new build/hello-world
+env RUSTC=%{buildroot}%{_bindir}/rustc \
+    LD_LIBRARY_PATH="%{buildroot}%{_libdir}:$LD_LIBRARY_PATH" \
+    %{buildroot}%{_bindir}/cargo run --manifest-path build/hello-world/Cargo.toml
+
 # The results are not stable on koji, so mask errors and just log it.
+# Some of the larger test artifacts are manually cleaned to save space.
 %{python} ./x.py test --no-fail-fast --stage 2 || :
+rm -rf "./build/%{rust_triple}/test/"
+
 %{python} ./x.py test --no-fail-fast --stage 2 cargo || :
+rm -rf "./build/%{rust_triple}/stage2-tools/%{rust_triple}/cit/"
+
 %{python} ./x.py test --no-fail-fast --stage 2 clippy || :
 %{python} ./x.py test --no-fail-fast --stage 2 rls || :
 %{python} ./x.py test --no-fail-fast --stage 2 rustfmt || :
@ -659,6 +736,26 @@ export %{rust_env}
 %{rustlibdir}/%{rust_triple}/lib/*.rlib


+%if %defined cross_targets
+%{lua: do
+  for triple in string.gmatch(rpm.expand("%{cross_targets}"), "%S+") do
+    local subs = {
+      triple = triple,
+      rustlibdir = rpm.expand("%{rustlibdir}"),
+    }
+    local s = string.gsub([[
+%files std-static-{{triple}}
+%dir {{rustlibdir}}
+%dir {{rustlibdir}}/{{triple}}
+%dir {{rustlibdir}}/{{triple}}/lib
+{{rustlibdir}}/{{triple}}/lib/*.rlib
+]], "{{(%w+)}}", subs)
+    print(s)
+  end
+end}
+%endif
+
+
 %files debugger-common
 %dir %{rustlibdir}
 %dir %{rustlibdir}/etc
@ -689,6 +786,7 @@ export %{rust_env}
 %{_docdir}/%{name}/html/*.png
 %{_docdir}/%{name}/html/*.svg
 %{_docdir}/%{name}/html/*.woff
+%{_docdir}/%{name}/html/*.woff2
 %license %{_docdir}/%{name}/html/*.txt
 %license %{_docdir}/%{name}/html/*.md

@ -741,6 +839,30 @@ export %{rust_env}


 %changelog
+* Fri Oct 29 2021 Josh Stone <jistone@redhat.com> - 1.55.0-1
+- Update to 1.55.0.
+- Backport support for LLVM 13.
+
+* Tue Aug 17 2021 Josh Stone <jistone@redhat.com> - 1.54.0-2
+- Make std-static-wasm* arch-specific to avoid s390x.
+
+* Thu Jul 29 2021 Josh Stone <jistone@redhat.com> - 1.54.0-1
+- Update to 1.54.0.
+
+* Tue Jul 20 2021 Josh Stone <jistone@redhat.com> - 1.53.0-2
+- Use llvm-ranlib to fix wasm archives.
+
+* Mon Jun 21 2021 Josh Stone <jistone@redhat.com> - 1.53.0-1
+- Update to 1.53.0.
+
+* Tue Jun 15 2021 Josh Stone <jistone@redhat.com> - 1.52.1-2
+- Set rust.codegen-units-std=1 for all targets again.
+- Add rust-std-static-wasm32-unknown-unknown.
+
+* Tue May 25 2021 Josh Stone <jistone@redhat.com> - 1.52.1-1
+- Update to 1.52.1. Includes security fixes for CVE-2020-36323,
+  CVE-2021-28876, CVE-2021-28878, CVE-2021-28879, and CVE-2021-31162.
+
 * Mon May 24 2021 Josh Stone <jistone@redhat.com> - 1.51.0-1
 - Update to 1.51.0. Update to 1.51.0. Includes security fixes for
  CVE-2021-28875 and CVE-2021-28877.