Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 0 insertions, 366 deletions

diff --git a/src/test/incremental/thinlto/cgu_invalidated_via_import.rs b/src/test/incremental/thinlto/cgu_invalidated_via_import.rs
deleted file mode 100644
index 5fe435d79..000000000
--- a/src/test/incremental/thinlto/cgu_invalidated_via_import.rs
+++ /dev/null
@@ -1,48 +0,0 @@
-// This test checks that the LTO phase is re-done for CGUs that import something
-// via ThinLTO and that imported thing changes while the definition of the CGU
-// stays untouched.
-
-// revisions: cfail1 cfail2 cfail3
-// compile-flags: -Z query-dep-graph -O
-// build-pass (FIXME(62277): could be check-pass?)
-
-#![feature(rustc_attrs)]
-#![crate_type="rlib"]
-
-#![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-foo",
-                            cfg="cfail2",
-                            kind="no")]
-#![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-foo",
-                            cfg="cfail3",
-                            kind="post-lto")]
-
-#![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-bar",
-                            cfg="cfail2",
-                            kind="pre-lto")]
-#![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-bar",
-                            cfg="cfail3",
-                            kind="post-lto")]
-
-mod foo {
-
-    // Trivial functions like this one are imported very reliably by ThinLTO.
-    #[cfg(cfail1)]
-    pub fn inlined_fn() -> u32 {
-        1234
-    }
-
-    #[cfg(not(cfail1))]
-    pub fn inlined_fn() -> u32 {
-        // See `cgu_keeps_identical_fn.rs` for why this is different
-        // from the other version of this function.
-        12345
-    }
-}
-
-pub mod bar {
-    use foo::inlined_fn;
-
-    pub fn caller() -> u32 {
-        inlined_fn()
-    }
-}
diff --git a/src/test/incremental/thinlto/cgu_invalidated_when_export_added.rs b/src/test/incremental/thinlto/cgu_invalidated_when_export_added.rs
deleted file mode 100644
index 95f3b8ae4..000000000
--- a/src/test/incremental/thinlto/cgu_invalidated_when_export_added.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-// revisions: cfail1 cfail2
-// build-pass
-
-// rust-lang/rust#69798:
-//
-// This is analogous to cgu_invalidated_when_import_added, but it covers a
-// problem uncovered where a change to the *export* set caused a link failure
-// when reusing post-LTO optimized object code.
-
-pub struct Foo {}
-impl Drop for Foo {
-    fn drop(&mut self) {
-        println!("Dropping Foo");
-    }
-}
-#[no_mangle]
-pub extern "C" fn run() {
-    thread_local! { pub static FOO : Foo = Foo { } ; }
-
-    #[cfg(cfail2)]
-    {
-        FOO.with(|_f| ())
-    }
-}
-
-pub fn main() { run() }
diff --git a/src/test/incremental/thinlto/cgu_invalidated_when_export_removed.rs b/src/test/incremental/thinlto/cgu_invalidated_when_export_removed.rs
deleted file mode 100644
index e86ebd354..000000000
--- a/src/test/incremental/thinlto/cgu_invalidated_when_export_removed.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-// revisions: cfail1 cfail2
-// build-pass
-
-// rust-lang/rust#69798:
-//
-// This is analogous to cgu_invalidated_when_export_added, but it covers the
-// other direction. This is analogous to cgu_invalidated_when_import_added: we
-// include it, because it may uncover bugs in variant implementation strategies.
-
-pub struct Foo {}
-impl Drop for Foo {
-    fn drop(&mut self) {
-        println!("Dropping Foo");
-    }
-}
-#[no_mangle]
-pub extern "C" fn run() {
-    thread_local! { pub static FOO : Foo = Foo { } ; }
-
-    #[cfg(cfail1)]
-    {
-        FOO.with(|_f| ())
-    }
-}
-
-pub fn main() { run() }
diff --git a/src/test/incremental/thinlto/cgu_invalidated_when_import_added.rs b/src/test/incremental/thinlto/cgu_invalidated_when_import_added.rs
deleted file mode 100644
index 9c17c8745..000000000
--- a/src/test/incremental/thinlto/cgu_invalidated_when_import_added.rs
+++ /dev/null
@@ -1,62 +0,0 @@
-// revisions: cfail1 cfail2
-// compile-flags: -O -Zhuman-readable-cgu-names -Cllvm-args=-import-instr-limit=10
-// build-pass
-
-// rust-lang/rust#59535:
-//
-// This is analogous to cgu_invalidated_when_import_removed.rs, but it covers
-// the other direction:
-//
-// We start with a call-graph like `[A] -> [B -> D] [C]` (where the letters are
-// functions and the modules are enclosed in `[]`), and add a new call `D <- C`,
-// yielding the new call-graph: `[A] -> [B -> D] <- [C]`
-//
-// The effect of this is that the compiler previously classfied `D` as internal
-// and the import-set of `[A]` to be just `B`. But after adding the `D <- C` call,
-// `D` is no longer classified as internal, and the import-set of `[A]` becomes
-// both `B` and `D`.
-//
-// We check this case because an early proposed pull request included an
-// assertion that the import-sets monotonically decreased over time, a claim
-// which this test case proves to be false.
-
-fn main() {
-    foo::foo();
-    bar::baz();
-}
-
-mod foo {
-
-    // In cfail1, ThinLTO decides that foo() does not get inlined into main, and
-    // instead bar() gets inlined into foo().
-    // In cfail2, foo() gets inlined into main.
-    pub fn foo(){
-        bar()
-    }
-
-    // This function needs to be big so that it does not get inlined by ThinLTO
-    // but *does* get inlined into foo() when it is declared `internal` in
-    // cfail1 (alone).
-    pub fn bar(){
-        println!("quux1");
-        println!("quux2");
-        println!("quux3");
-        println!("quux4");
-        println!("quux5");
-        println!("quux6");
-        println!("quux7");
-        println!("quux8");
-        println!("quux9");
-    }
-}
-
-mod bar {
-
-    #[inline(never)]
-    pub fn baz() {
-        #[cfg(cfail2)]
-        {
-            crate::foo::bar();
-        }
-    }
-}
diff --git a/src/test/incremental/thinlto/cgu_invalidated_when_import_removed.rs b/src/test/incremental/thinlto/cgu_invalidated_when_import_removed.rs
deleted file mode 100644
index fc53acf75..000000000
--- a/src/test/incremental/thinlto/cgu_invalidated_when_import_removed.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-// revisions: cfail1 cfail2
-// compile-flags: -O -Zhuman-readable-cgu-names -Cllvm-args=-import-instr-limit=10
-// build-pass
-
-// rust-lang/rust#59535:
-//
-// Consider a call-graph like `[A] -> [B -> D] <- [C]` (where the letters are
-// functions and the modules are enclosed in `[]`)
-//
-// In our specific instance, the earlier compilations were inlining the call
-// to`B` into `A`; thus `A` ended up with an external reference to the symbol `D`
-// in its object code, to be resolved at subsequent link time. The LTO import
-// information provided by LLVM for those runs reflected that information: it
-// explicitly says during those runs, `B` definition and `D` declaration were
-// imported into `[A]`.
-//
-// The change between incremental builds was that the call `D <- C` was removed.
-//
-// That change, coupled with other decisions within `rustc`, made the compiler
-// decide to make `D` an internal symbol (since it was no longer accessed from
-// other codegen units, this makes sense locally). And then the definition of
-// `D` was inlined into `B` and `D` itself was eliminated entirely.
-//
-// The current LTO import information reported that `B` alone is imported into
-// `[A]` for the *current compilation*. So when the Rust compiler surveyed the
-// dependence graph, it determined that nothing `[A]` imports changed since the
-// last build (and `[A]` itself has not changed either), so it chooses to reuse
-// the object code generated during the previous compilation.
-//
-// But that previous object code has an unresolved reference to `D`, and that
-// causes a link time failure!
-
-fn main() {
-    foo::foo();
-    bar::baz();
-}
-
-mod foo {
-
-    // In cfail1, foo() gets inlined into main.
-    // In cfail2, ThinLTO decides that foo() does not get inlined into main, and
-    // instead bar() gets inlined into foo(). But faulty logic in our incr.
-    // ThinLTO implementation thought that `main()` is unchanged and thus reused
-    // the object file still containing a call to the now non-existent bar().
-    pub fn foo(){
-        bar()
-    }
-
-    // This function needs to be big so that it does not get inlined by ThinLTO
-    // but *does* get inlined into foo() once it is declared `internal` in
-    // cfail2.
-    pub fn bar(){
-        println!("quux1");
-        println!("quux2");
-        println!("quux3");
-        println!("quux4");
-        println!("quux5");
-        println!("quux6");
-        println!("quux7");
-        println!("quux8");
-        println!("quux9");
-    }
-}
-
-mod bar {
-
-    #[inline(never)]
-    pub fn baz() {
-        #[cfg(cfail1)]
-        {
-            crate::foo::bar();
-        }
-    }
-}
diff --git a/src/test/incremental/thinlto/cgu_keeps_identical_fn.rs b/src/test/incremental/thinlto/cgu_keeps_identical_fn.rs
deleted file mode 100644
index 31f329a7f..000000000
--- a/src/test/incremental/thinlto/cgu_keeps_identical_fn.rs
+++ /dev/null
@@ -1,72 +0,0 @@
-// This test is almost identical to `cgu_invalided_via_import`, except that
-// the two versions of `inline_fn` are identical. Neither version of `inlined_fn`
-// ends up with any spans in its LLVM bitecode, so LLVM is able to skip
-// re-building any modules which import 'inlined_fn'
-
-// revisions: cfail1 cfail2 cfail3 cfail4 cfail5 cfail6
-// [cfail4]compile-flags: -Zincremental-relative-spans
-// [cfail5]compile-flags: -Zincremental-relative-spans
-// [cfail6]compile-flags: -Zincremental-relative-spans
-// compile-flags: -Z query-dep-graph -O
-// build-pass (FIXME(62277): could be check-pass?)
-
-#![feature(rustc_attrs)]
-#![crate_type = "rlib"]
-#![rustc_expected_cgu_reuse(module = "cgu_keeps_identical_fn-foo", cfg = "cfail2", kind = "no")]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-foo",
-    cfg = "cfail3",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-foo",
-    cfg = "cfail5",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-foo",
-    cfg = "cfail6",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-bar",
-    cfg = "cfail2",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-bar",
-    cfg = "cfail3",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-bar",
-    cfg = "cfail5",
-    kind = "post-lto"
-)]
-#![rustc_expected_cgu_reuse(
-    module = "cgu_keeps_identical_fn-bar",
-    cfg = "cfail6",
-    kind = "post-lto"
-)]
-
-mod foo {
-
-    // Trivial functions like this one are imported very reliably by ThinLTO.
-    #[cfg(any(cfail1, cfail4))]
-    pub fn inlined_fn() -> u32 {
-        1234
-    }
-
-    #[cfg(not(any(cfail1, cfail4)))]
-    pub fn inlined_fn() -> u32 {
-        1234
-    }
-}
-
-pub mod bar {
-    use foo::inlined_fn;
-
-    pub fn caller() -> u32 {
-        inlined_fn()
-    }
-}
diff --git a/src/test/incremental/thinlto/independent_cgus_dont_affect_each_other.rs b/src/test/incremental/thinlto/independent_cgus_dont_affect_each_other.rs
deleted file mode 100644
index 045f20119..000000000
--- a/src/test/incremental/thinlto/independent_cgus_dont_affect_each_other.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-// This test checks that a change in a CGU does not invalidate an unrelated CGU
-// during incremental ThinLTO.
-
-// revisions: cfail1 cfail2 cfail3
-// compile-flags: -Z query-dep-graph -O
-// build-pass (FIXME(62277): could be check-pass?)
-
-#![feature(rustc_attrs)]
-#![crate_type="rlib"]
-
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-foo",
-                            cfg="cfail2",
-                            kind="no")]
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-foo",
-                            cfg="cfail3",
-                            kind="post-lto")]
-
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar",
-                            cfg="cfail2",
-                            kind="pre-lto")]
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar",
-                            cfg="cfail3",
-                            kind="post-lto")]
-
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz",
-                            cfg="cfail2",
-                            kind="post-lto")]
-#![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz",
-                            cfg="cfail3",
-                            kind="post-lto")]
-mod foo {
-
-    #[cfg(cfail1)]
-    pub fn inlined_fn() -> u32 {
-        1234
-    }
-
-    #[cfg(not(cfail1))]
-    pub fn inlined_fn() -> u32 {
-        // See `cgu_keeps_identical_fn.rs` for why this is different
-        // from the other version of this function.
-        12345
-    }
-}
-
-pub mod bar {
-    use foo::inlined_fn;
-
-    pub fn caller() -> u32 {
-        inlined_fn()
-    }
-}
-
-pub mod baz {
-    pub fn unrelated_to_other_fns() -> u64 {
-        0xbeef
-    }
-}