Auto merge of #131511 - matthiaskrgr:rollup-56qr0e5, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #130308 (codegen_ssa: consolidate tied target checks)
 - #130538 (Stabilize const `{slice,array}::from_mut`)
 - #130741 (rustc_target: Add sme-b16b16 as an explicit aarch64 target feature)
 - #131033 (Precise capturing in traits)
 - #131442 (Match std `RUSTFLAGS` for host and target for `mir-opt` test suite to fix double std build/rebuilds)
 - #131470 (add test infra to explicitely test rustc with autodiff/enzyme disabled)
 - #131475 (Compiler & its UI tests: Rename remaining occurrences of "object safe" to "dyn compatible" )
 - #131493 (Avoid redundant sysroot additions to `PATH` when linking)
 - #131509 (Update .mailmap)

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 7 insertions, 0 deletions

diff --git a/src/tools/compiletest/src/command-list.rs b/src/tools/compiletest/src/command-list.rs
index 88e1bb56fe9..4d57907f26f 100644
--- a/src/tools/compiletest/src/command-list.rs
+++ b/src/tools/compiletest/src/command-list.rs
@@ -49,6 +49,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "ignore-eabi",
     "ignore-emscripten",
     "ignore-endian-big",
+    "ignore-enzyme",
     "ignore-freebsd",
     "ignore-fuchsia",
     "ignore-gdb",
diff --git a/src/tools/compiletest/src/header/cfg.rs b/src/tools/compiletest/src/header/cfg.rs
index 6e351aa27b9..b9314f0abbb 100644
--- a/src/tools/compiletest/src/header/cfg.rs
+++ b/src/tools/compiletest/src/header/cfg.rs
@@ -166,6 +166,12 @@ pub(super) fn parse_cfg_name_directive<'a>(
         message: "when the target vendor is Apple"
     }
 
+    condition! {
+        name: "enzyme",
+        condition: config.has_enzyme,
+        message: "when rustc is built with LLVM Enzyme"
+    }
+
     // Technically the locally built compiler uses the "dev" channel rather than the "nightly"
     // channel, even though most people don't know or won't care about it. To avoid confusion, we
     // treat the "dev" channel as the "nightly" channel when processing the directive.