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Fix union debuginfo test on lldb
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Macro expansions produce code tagged with debug locations that are completely different from the surrounding expressions. This wrecks havoc on debugger's ability the step over source lines.
In order to have a good line stepping behavior in debugger, we overwrite debug locations of macro expansions with that of the outermost expansion site.
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`unboxed_closures`
They are already gated with feature `fn_traits`
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Part of fixes for #34915
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This primarily removes a lot of `sync::Static*` APIs and rejiggers the
associated implementations. While doing this it was discovered that the
`is_poisoned` method can actually result in a data race for the Mutex/RwLock
primitives, so the inner `Cell<bool>` was changed to an `AtomicBool` to prevent
the associated data race. Otherwise the usage/gurantees should be the same
they were before.
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Use lazy iterator in vec/slice gdb pretty printers
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Fix macro call site spans
Fix macro call site spans.
r? @nrc
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debuginfo test
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For legacy reasons (presumably), Windows does not permit files name aux.
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Instead of finding aux-build files in `auxiliary`, we now search for an
`aux` directory relative to the test. So if your test is
`compile-fail/foo.rs`, we would look in `compile-fail/aux`. Similarly,
we ignore the `aux` directory when searching for tets.
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This is a standard "clean out libstd" commit which removes all 1.5-and-before
deprecated functionality as it's now all been deprecated for at least one entire
cycle.
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Closes #28091.
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not actually broken."
This reverts commit 354cf4b56b8e2af67cc68965eb816deec0e79e4b.
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actually broken.
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Closure variables represent the closure environment, not the closure
function, so the identifier used to ensure that the debuginfo is unique
for each kind of closure needs to be based on the closure upvars and not
the function signature.
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Variables for closures hold a tuple of captured variables, and not the
function itself.
Fixes #26484
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Instead of generating pointer debug info, we're currently generating
subroutine debug info.
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We're currently using the actual function type as the return type when
creating the debug info for a function, so we're actually creating
debug info for a function that takes the same parameters, and returns
the actual function type, which is completely wrong.
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LLVM has recently created their 3.7 release branch, and this PR updates us to that point. This should hopefully mean that we're basically compatible with the upcoming 3.7 release. Additionally, there are a number of goodies on this branch.
* This contains a fix for https://llvm.org/bugs/show_bug.cgi?id=23957
which should help us bootstrap farther on 32-bit MSVC targets.
* There is better support for writing multiple flavors of archives, allowing us
to use the built-in LLVM support instead of the system `ar` on all current
platforms of the compiler.
* This LLVM has SafeStack support
* An [optimization patch](https://github.com/rust-lang/llvm/commit/7cf5e26e18f7d2d8db09c83c76dd727535f281ab) by @pcwalton is included.
* A number of other minor test fixes here and there.
Due to problems dealing with the data layout we pass to LLVM, this PR also takes the time to clean up how we specific this. We no longer specify a data layout to LLVM by default and instead take the default for the target from LLVM to pass to the module that we're building. This should be more robust going into the future, and I'm also not sure we know what any of these arcane strings are any more...
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Re-enabling it is tracked in #27089
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It was removed in bba934f19ab26d5afc4f0be923ea699010883906.
Fixes #27059.
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Most of these are old, but some specific messages for specific tests:
* trait-contravariant-self.rs: failed due to a soundess hole:
https://github.com/rust-lang/rust/commit/05e3248a7974f55b64f75a2483b37ff8c001a4ff
* process-detatch: https://github.com/rust-lang/rust/commit/15966c3c1f99810ac81053769651776a67181dae
says "this test is being ignored until signals are implemented" That's
not happening for a long time, and when it is, we'll write tests for
it.
* deep-vector{,2}.rs: "too big for our poor macro infrastructure", and has
been ignored over a year.
* borrowck-nested-calls.rs's FIXME #6268 was closed in favor of
rust-lang/rfcs#811
* issue-15167.rs works properly now
* issue-9737.rs works properly now
* match-var-hygiene.rs works properly now
Addresses a chunk of #3965
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Broken on nightly linux distcheck.
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GDB and LLDB pretty printers have some common functionality
and also access some common information, such as the layout of
standard library types. So far, this information has been
duplicated in the two pretty printing python modules. This
commit introduces a common module used by both debuggers.
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Addresses part of #10381.
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The problem here is that this test doesn't even compile for Android.
See #24958.
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