Rustup to rustc 1.59.0-nightly (c5ecc1570 2021-12-15)

build_sysroot/Cargo.lock

@@ -56,7 +56,7 @@ dependencies = [
 
 [[package]]
 name = "compiler_builtins"
-version = "0.1.55"
+version = "0.1.66"
 dependencies = [
  "rustc-std-workspace-core",
 ]
@@ -132,9 +132,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.109"
+version = "0.2.112"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f98a04dce437184842841303488f70d0188c5f51437d2a834dc097eafa909a01"
+checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
 dependencies = [
  "rustc-std-workspace-core",
 ]

build_system/prepare.rs

@@ -92,7 +92,7 @@ fn prepare_sysroot() {
     clone_repo(
         "build_sysroot/compiler-builtins",
         "https://github.com/rust-lang/compiler-builtins.git",
-        "0.1.55",
+        "0.1.66",
     );
     apply_patches("compiler-builtins", Path::new("build_sysroot/compiler-builtins"));
 }

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-12-09"
+channel = "nightly-2021-12-16"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]

scripts/setup_rust_fork.sh

@@ -33,7 +33,7 @@ index d95b5b7f17f..00b6f0e3635 100644
  [dependencies]
  core = { path = "../core" }
 -compiler_builtins = { version = "0.1.40", features = ['rustc-dep-of-std'] }
-+compiler_builtins = { version = "0.1.53", features = ['rustc-dep-of-std', 'no-asm'] }
++compiler_builtins = { version = "0.1.66", features = ['rustc-dep-of-std', 'no-asm'] }
 
  [dev-dependencies]
  rand = "0.7"

src/inline_asm.rs

@@ -317,10 +317,14 @@ impl<'tcx> InlineAssemblyGenerator<'_, 'tcx> {
         let mut new_slot = |x| new_slot_fn(&mut slot_size, x);
 
         // Allocate stack slots for saving clobbered registers
-        let abi_clobber =
-            InlineAsmClobberAbi::parse(self.arch, &self.tcx.sess.target, Symbol::intern("C"))
-                .unwrap()
-                .clobbered_regs();
+        let abi_clobber = InlineAsmClobberAbi::parse(
+            self.arch,
+            |feature| self.tcx.sess.target_features.contains(&Symbol::intern(feature)),
+            &self.tcx.sess.target,
+            Symbol::intern("C"),
+        )
+        .unwrap()
+        .clobbered_regs();
         for (i, reg) in self.registers.iter().enumerate().filter_map(|(i, r)| r.map(|r| (i, r))) {
             let mut need_save = true;
             // If the register overlaps with a register clobbered by function call, then