Rollup merge of #131913 - jieyouxu:only_debug_assertions, r=onur-ozkan

Add `{ignore,needs}-{rustc,std}-debug-assertions` directive support

Add `{ignore,needs}-{rustc,std}-debug-assertions` compiletest directives and retire the old `{ignore,only}-debug` directives. The old `{ignore,only}-debug` directives were ambiguous because you could have std built with debug assertions but rustc not built with debug assertions or vice versa. If we want to support the use case of controlling test run based on if rustc was built with debug assertions, then having `{ignore,only}-debug` will be very confusing.

cc ````@matthiaskrgr````

Closes #123987.

r? bootstrap (or compiler tbh)

src/bootstrap/src/core/build_steps/test.rs

@@ -1938,9 +1938,13 @@ fn run(self, builder: &Builder<'_>) {
 
         cmd.arg("--json");
 
-        if builder.config.rust_debug_assertions_std {
-            cmd.arg("--with-debug-assertions");
-        };
+        if builder.config.rustc_debug_assertions {
+            cmd.arg("--with-rustc-debug-assertions");
+        }
+
+        if builder.config.std_debug_assertions {
+            cmd.arg("--with-std-debug-assertions");
+        }
 
         let mut llvm_components_passed = false;
         let mut copts_passed = false;

src/bootstrap/src/core/builder/cargo.rs

@@ -833,9 +833,9 @@ fn cargo(
         cargo.env(
             profile_var("DEBUG_ASSERTIONS"),
             if mode == Mode::Std {
-                self.config.rust_debug_assertions_std.to_string()
+                self.config.std_debug_assertions.to_string()
             } else {
-                self.config.rust_debug_assertions.to_string()
+                self.config.rustc_debug_assertions.to_string()
             },
         );
         cargo.env(

src/bootstrap/src/core/config/config.rs

@@ -263,8 +263,10 @@ pub struct Config {
     pub rust_optimize: RustOptimize,
     pub rust_codegen_units: Option<u32>,
     pub rust_codegen_units_std: Option<u32>,
-    pub rust_debug_assertions: bool,
-    pub rust_debug_assertions_std: bool,
+
+    pub rustc_debug_assertions: bool,
+    pub std_debug_assertions: bool,
+
     pub rust_overflow_checks: bool,
     pub rust_overflow_checks_std: bool,
     pub rust_debug_logging: bool,
@@ -1115,9 +1117,9 @@ struct Rust {
         debug: Option<bool> = "debug",
         codegen_units: Option<u32> = "codegen-units",
         codegen_units_std: Option<u32> = "codegen-units-std",
-        debug_assertions: Option<bool> = "debug-assertions",
+        rustc_debug_assertions: Option<bool> = "debug-assertions",
         randomize_layout: Option<bool> = "randomize-layout",
-        debug_assertions_std: Option<bool> = "debug-assertions-std",
+        std_debug_assertions: Option<bool> = "debug-assertions-std",
         overflow_checks: Option<bool> = "overflow-checks",
         overflow_checks_std: Option<bool> = "overflow-checks-std",
         debug_logging: Option<bool> = "debug-logging",
@@ -1652,8 +1654,8 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
         let mut llvm_offload = None;
         let mut llvm_plugins = None;
         let mut debug = None;
-        let mut debug_assertions = None;
-        let mut debug_assertions_std = None;
+        let mut rustc_debug_assertions = None;
+        let mut std_debug_assertions = None;
         let mut overflow_checks = None;
         let mut overflow_checks_std = None;
         let mut debug_logging = None;
@@ -1675,8 +1677,8 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
                 debug: debug_toml,
                 codegen_units,
                 codegen_units_std,
-                debug_assertions: debug_assertions_toml,
-                debug_assertions_std: debug_assertions_std_toml,
+                rustc_debug_assertions: rustc_debug_assertions_toml,
+                std_debug_assertions: std_debug_assertions_toml,
                 overflow_checks: overflow_checks_toml,
                 overflow_checks_std: overflow_checks_std_toml,
                 debug_logging: debug_logging_toml,
@@ -1734,8 +1736,8 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
                 config.download_ci_rustc_commit(download_rustc, config.llvm_assertions);
 
             debug = debug_toml;
-            debug_assertions = debug_assertions_toml;
-            debug_assertions_std = debug_assertions_std_toml;
+            rustc_debug_assertions = rustc_debug_assertions_toml;
+            std_debug_assertions = std_debug_assertions_toml;
             overflow_checks = overflow_checks_toml;
             overflow_checks_std = overflow_checks_std_toml;
             debug_logging = debug_logging_toml;
@@ -2148,14 +2150,13 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
         config.rust_std_features = std_features.unwrap_or(default_std_features);
 
         let default = debug == Some(true);
-        config.rust_debug_assertions = debug_assertions.unwrap_or(default);
-        config.rust_debug_assertions_std =
-            debug_assertions_std.unwrap_or(config.rust_debug_assertions);
+        config.rustc_debug_assertions = rustc_debug_assertions.unwrap_or(default);
+        config.std_debug_assertions = std_debug_assertions.unwrap_or(config.rustc_debug_assertions);
         config.rust_overflow_checks = overflow_checks.unwrap_or(default);
         config.rust_overflow_checks_std =
             overflow_checks_std.unwrap_or(config.rust_overflow_checks);
 
-        config.rust_debug_logging = debug_logging.unwrap_or(config.rust_debug_assertions);
+        config.rust_debug_logging = debug_logging.unwrap_or(config.rustc_debug_assertions);
 
         let with_defaults = |debuginfo_level_specific: Option<_>| {
             debuginfo_level_specific.or(debuginfo_level).unwrap_or(if debug == Some(true) {
@@ -3075,8 +3076,8 @@ macro_rules! warn {
         debug: _,
         codegen_units: _,
         codegen_units_std: _,
-        debug_assertions: _,
-        debug_assertions_std: _,
+        rustc_debug_assertions: _,
+        std_debug_assertions: _,
         overflow_checks: _,
         overflow_checks_std: _,
         debuginfo_level: _,

src/tools/compiletest/src/common.rs

@@ -236,8 +236,11 @@ pub struct Config {
     /// Run ignored tests
     pub run_ignored: bool,
 
-    /// Whether to run tests with `ignore-debug` header
-    pub with_debug_assertions: bool,
+    /// Whether rustc was built with debug assertions.
+    pub with_rustc_debug_assertions: bool,
+
+    /// Whether std was built with debug assertions.
+    pub with_std_debug_assertions: bool,
 
     /// Only run tests that match these filters
     pub filters: Vec<String>,

src/tools/compiletest/src/directive-list.rs

@@ -46,7 +46,6 @@
     "ignore-coverage-map",
     "ignore-coverage-run",
     "ignore-cross-compile",
-    "ignore-debug",
     "ignore-eabi",
     "ignore-emscripten",
     "ignore-endian-big",
@@ -82,6 +81,7 @@
     "ignore-powerpc",
     "ignore-remote",
     "ignore-riscv64",
+    "ignore-rustc-debug-assertions",
     "ignore-s390x",
     "ignore-sgx",
     "ignore-sparc64",
@@ -89,6 +89,7 @@
     "ignore-stable",
     "ignore-stage1",
     "ignore-stage2",
+    "ignore-std-debug-assertions",
     "ignore-test",
     "ignore-thumb",
     "ignore-thumbv8m.base-none-eabi",
@@ -135,6 +136,7 @@
     "needs-relocation-model-pic",
     "needs-run-enabled",
     "needs-rust-lld",
+    "needs-rustc-debug-assertions",
     "needs-sanitizer-address",
     "needs-sanitizer-cfi",
     "needs-sanitizer-dataflow",
@@ -147,6 +149,7 @@
     "needs-sanitizer-shadow-call-stack",
     "needs-sanitizer-support",
     "needs-sanitizer-thread",
+    "needs-std-debug-assertions",
     "needs-symlink",
     "needs-threads",
     "needs-unwind",

src/tools/compiletest/src/header/cfg.rs

@@ -202,9 +202,14 @@ macro_rules! condition {
         message: "when running tests remotely",
     }
     condition! {
-        name: "debug",
-        condition: config.with_debug_assertions,
-        message: "when running tests with `ignore-debug` header",
+        name: "rustc-debug-assertions",
+        condition: config.with_rustc_debug_assertions,
+        message: "when rustc is built with debug assertions",
+    }
+    condition! {
+        name: "std-debug-assertions",
+        condition: config.with_std_debug_assertions,
+        message: "when std is built with debug assertions",
     }
     condition! {
         name: config.debugger.as_ref().map(|d| d.to_str()),

src/tools/compiletest/src/header/needs.rs

@@ -159,6 +159,16 @@ pub(super) fn handle_needs(
             condition: cache.llvm_zstd,
             ignore_reason: "ignored if LLVM wasn't build with zstd for ELF section compression",
         },
+        Need {
+            name: "needs-rustc-debug-assertions",
+            condition: config.with_rustc_debug_assertions,
+            ignore_reason: "ignored if rustc wasn't built with debug assertions",
+        },
+        Need {
+            name: "needs-std-debug-assertions",
+            condition: config.with_std_debug_assertions,
+            ignore_reason: "ignored if std wasn't built with debug assertions",
+        },
     ];
 
     let (name, comment) = match ln.split_once([':', ' ']) {

src/tools/compiletest/src/header/tests.rs

@@ -74,6 +74,8 @@ struct ConfigBuilder {
     git_hash: bool,
     system_llvm: bool,
     profiler_runtime: bool,
+    rustc_debug_assertions: bool,
+    std_debug_assertions: bool,
 }
 
 impl ConfigBuilder {
@@ -122,6 +124,16 @@ fn profiler_runtime(&mut self, is_available: bool) -> &mut Self {
         self
     }
 
+    fn rustc_debug_assertions(&mut self, is_enabled: bool) -> &mut Self {
+        self.rustc_debug_assertions = is_enabled;
+        self
+    }
+
+    fn std_debug_assertions(&mut self, is_enabled: bool) -> &mut Self {
+        self.std_debug_assertions = is_enabled;
+        self
+    }
+
     fn build(&mut self) -> Config {
         let args = &[
             "compiletest",
@@ -170,6 +182,12 @@ fn build(&mut self) -> Config {
         if self.profiler_runtime {
             args.push("--profiler-runtime".to_owned());
         }
+        if self.rustc_debug_assertions {
+            args.push("--with-rustc-debug-assertions".to_owned());
+        }
+        if self.std_debug_assertions {
+            args.push("--with-std-debug-assertions".to_owned());
+        }
 
         args.push("--rustc-path".to_string());
         // This is a subtle/fragile thing. On rust-lang CI, there is no global
@@ -314,6 +332,32 @@ fn only_target() {
     assert!(!check_ignore(&config, "//@ only-64bit"));
 }
 
+#[test]
+fn rustc_debug_assertions() {
+    let config: Config = cfg().rustc_debug_assertions(false).build();
+
+    assert!(check_ignore(&config, "//@ needs-rustc-debug-assertions"));
+    assert!(!check_ignore(&config, "//@ ignore-rustc-debug-assertions"));
+
+    let config: Config = cfg().rustc_debug_assertions(true).build();
+
+    assert!(!check_ignore(&config, "//@ needs-rustc-debug-assertions"));
+    assert!(check_ignore(&config, "//@ ignore-rustc-debug-assertions"));
+}
+
+#[test]
+fn std_debug_assertions() {
+    let config: Config = cfg().std_debug_assertions(false).build();
+
+    assert!(check_ignore(&config, "//@ needs-std-debug-assertions"));
+    assert!(!check_ignore(&config, "//@ ignore-std-debug-assertions"));
+
+    let config: Config = cfg().std_debug_assertions(true).build();
+
+    assert!(!check_ignore(&config, "//@ needs-std-debug-assertions"));
+    assert!(check_ignore(&config, "//@ ignore-std-debug-assertions"));
+}
+
 #[test]
 fn stage() {
     let config: Config = cfg().stage_id("stage1-x86_64-unknown-linux-gnu").build();

src/tools/compiletest/src/lib.rs

@@ -88,7 +88,8 @@ pub fn parse_config(args: Vec<String>) -> Config {
         .optopt("", "run", "whether to execute run-* tests", "auto | always | never")
         .optflag("", "ignored", "run tests marked as ignored")
         .optflag("", "has-enzyme", "run tests that require enzyme")
-        .optflag("", "with-debug-assertions", "whether to run tests with `ignore-debug` header")
+        .optflag("", "with-rustc-debug-assertions", "whether rustc was built with debug assertions")
+        .optflag("", "with-std-debug-assertions", "whether std was built with debug assertions")
         .optmulti(
             "",
             "skip",
@@ -235,7 +236,8 @@ fn make_absolute(path: PathBuf) -> PathBuf {
 
     let src_base = opt_path(matches, "src-base");
     let run_ignored = matches.opt_present("ignored");
-    let with_debug_assertions = matches.opt_present("with-debug-assertions");
+    let with_rustc_debug_assertions = matches.opt_present("with-rustc-debug-assertions");
+    let with_std_debug_assertions = matches.opt_present("with-std-debug-assertions");
     let mode = matches.opt_str("mode").unwrap().parse().expect("invalid mode");
     let has_html_tidy = if mode == Mode::Rustdoc {
         Command::new("tidy")
@@ -293,7 +295,8 @@ fn make_absolute(path: PathBuf) -> PathBuf {
         suite: matches.opt_str("suite").unwrap(),
         debugger: None,
         run_ignored,
-        with_debug_assertions,
+        with_rustc_debug_assertions,
+        with_std_debug_assertions,
         filters,
         skip: matches.opt_strs("skip"),
         filter_exact: matches.opt_present("exact"),

tests/codegen/binary-heap-peek-mut-pop-no-panic.rs

@@ -1,5 +1,5 @@
 //@ compile-flags: -O
-//@ ignore-debug
+//@ ignore-std-debug-assertions
 #![crate_type = "lib"]
 
 use std::collections::binary_heap::PeekMut;

tests/codegen/mem-replace-big-type.rs

@@ -4,7 +4,8 @@
 // known to be `1` after inlining).
 
 //@ compile-flags: -C no-prepopulate-passes -Zinline-mir=no
-//@ ignore-debug: precondition checks in ptr::read make them a bad candidate for MIR inlining
+//@ ignore-std-debug-assertions
+// Reason: precondition checks in ptr::read make them a bad candidate for MIR inlining
 //@ needs-deterministic-layouts
 
 #![crate_type = "lib"]

tests/codegen/mem-replace-simple-type.rs

@@ -1,6 +1,7 @@
 //@ compile-flags: -O -C no-prepopulate-passes
 //@ only-x86_64 (to not worry about usize differing)
-//@ ignore-debug: precondition checks make mem::replace not a candidate for MIR inlining
+//@ ignore-std-debug-assertions
+// Reason: precondition checks make mem::replace not a candidate for MIR inlining
 
 #![crate_type = "lib"]
 

tests/codegen/slice-reverse.rs

@@ -1,6 +1,6 @@
 //@ compile-flags: -O
 //@ only-x86_64
-//@ ignore-debug: debug assertions prevent generating shufflevector
+//@ ignore-std-debug-assertions (debug assertions prevent generating shufflevector)
 
 #![crate_type = "lib"]
 

tests/codegen/vec-in-place.rs

@@ -1,4 +1,4 @@
-//@ ignore-debug: FIXME: checks for call detect scoped noalias metadata
+//@ ignore-std-debug-assertions (FIXME: checks for call detect scoped noalias metadata)
 //@ compile-flags: -O -Z merge-functions=disabled
 #![crate_type = "lib"]
 

tests/codegen/vec-shrink-panik.rs

@@ -1,7 +1,7 @@
 // LLVM 17 realizes double panic is not possible and doesn't generate calls
 // to panic_cannot_unwind.
 //@ compile-flags: -O
-//@ ignore-debug: plain old debug assertions
+//@ ignore-std-debug-assertions (plain old debug assertions)
 //@ needs-unwind
 #![crate_type = "lib"]
 #![feature(shrink_to)]

tests/codegen/vec-with-capacity.rs

@@ -1,5 +1,5 @@
 //@ compile-flags: -O
-//@ ignore-debug
+//@ ignore-std-debug-assertions
 // (with debug assertions turned on, `assert_unchecked` generates a real assertion)
 
 #![crate_type = "lib"]

tests/codegen/vecdeque-drain.rs

@@ -2,7 +2,7 @@
 
 //@ compile-flags: -O
 //@ needs-deterministic-layouts
-//@ ignore-debug: FIXME: checks for call detect scoped noalias metadata
+//@ ignore-std-debug-assertions (FIXME: checks for call detect scoped noalias metadata)
 
 #![crate_type = "lib"]
 

tests/codegen/vecdeque_no_panic.rs

@@ -1,7 +1,7 @@
 // This test checks that `VecDeque::front[_mut]()` and `VecDeque::back[_mut]()` can't panic.
 
 //@ compile-flags: -O
-//@ ignore-debug: plain old debug assertions
+//@ ignore-std-debug-assertions (plain old debug assertions)
 
 #![crate_type = "lib"]
 

tests/mir-opt/pre-codegen/mem_replace.rs

@@ -1,6 +1,7 @@
 // skip-filecheck
 //@ compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2 -Zinline-mir
-//@ ignore-debug: precondition checks on ptr::read/write are under cfg(debug_assertions)
+//@ ignore-std-debug-assertions
+// Reason: precondition checks on ptr::read/write are under cfg(debug_assertions)
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
 #![crate_type = "lib"]

tests/mir-opt/pre-codegen/ptr_offset.rs

@@ -1,6 +1,6 @@
 // skip-filecheck
 //@ compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2 -Zinline-mir
-//@ ignore-debug: precondition checks are under cfg(debug_assertions)
+//@ ignore-std-debug-assertions (precondition checks are under cfg(debug_assertions))
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
 #![crate_type = "lib"]

tests/mir-opt/pre-codegen/slice_iter.rs

@@ -1,7 +1,7 @@
 // skip-filecheck
 //@ compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2
 //@ only-64bit (constants for `None::<&T>` show in the output)
-//@ ignore-debug: precondition checks on ptr::add are under cfg(debug_assertions)
+//@ ignore-std-debug-assertions (precondition checks on ptr::add are under cfg(debug_assertions))
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
 #![crate_type = "lib"]

tests/ui/print_type_sizes/niche-filling.rs

@@ -9,7 +9,7 @@
 //! padding and overall computed sizes can be quite different.
 //!
 //@ compile-flags: -Z print-type-sizes --crate-type lib
-//@ ignore-debug: debug assertions will print more types
+//@ ignore-std-debug-assertions (debug assertions will print more types)
 //@ build-pass
 //@ ignore-pass
 //  ^-- needed because `--pass check` does not emit the output needed.