Commit Graph

2 Commits

Author SHA1 Message Date
Josh Soref
644c18ca9b Spelling stdlib (#42444)
* spelling: against

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: algorithmic

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: alignment

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: anything

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: architectural

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: architecture

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: are

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: artificial

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: aside

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: available

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: being

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: bidirectional

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: characters

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: circular

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: compatibility

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: compiled

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: correctly

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: covers

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: declaration

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: dependencies

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: descriptor

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: dictionaries

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: dynamic

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: greater

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: hierarchy

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: immortal

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: initialize

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: initializes

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: iterable

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: message

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: minimum

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: multiple

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: originally

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: simplified

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* spelling: sophisticated

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: trivia

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: wasn't

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
2022-04-19 14:02:43 -07:00
Kuba (Brecka) Mracek
7e33575c6b Re-import LLVMSupport from llvm-project and enforce header includes only being used from the Swift fork when building stdlib (#40173)
* Enforce using headers from Swift's LLVMSupport fork and not llvm-project when building stdlib

* [LLVMSupport] Re-import LLVMSupport .cpp and .h files from 9ff3a9759b7c2f146e7f46e4aebc60453c577c5a from apple/llvm-project

Done via the following commands, while having llvm-project checked out at 9ff3a9759b7c2f146e7f46e4aebc60453c577c5a, a
commit on the stable/20210726 branch of apple/llvm-project, <9ff3a9759b>:

for i in swift/stdlib/public/LLVMSupport/*.cpp ; do cp llvm-project/llvm/lib/Support/$(basename $i) $i ; done
for i in swift/stdlib/include/llvm/ADT/*.h; do cp llvm-project/llvm/include/llvm/ADT/$(basename $i) $i ; done
for i in swift/stdlib/include/llvm/Support/*.h; do cp llvm-project/llvm/include/llvm/Support/$(basename $i) $i ; done
cp llvm-project/llvm/include/llvm/ADT/ScopeExit.h swift/stdlib/include/llvm/ADT/ScopeExit.h
cp llvm-project/llvm/include/llvm/ADT/Twine.h swift/stdlib/include/llvm/ADT/Twine.h
cp llvm-project/llvm/include/llvm/Support/raw_ostream.h swift/stdlib/include/llvm/Support/raw_ostream.h

* [LLVMSupport] Re-namespace the LLVMSupport fork after re-forking by re-applying b72788c27a

More precisely:

1) git cherry-pick b72788c27a
2) manually resolve the conflict in AlignOf.h by keeping the HEAD's version of the chunk and discarding the cherry-pick's change
3) git add AlignOf.h
4) git status | grep "deleted by us" | awk '{print($4)}' | xargs git rm
5) git cherry-pick --continue

Original namespacing commit message:

> This adds the `__swift::__runtime` inline namespace to the LLVMSupport
> interfaces.  This avoids an ODR violation when LLVM and Swift are in the
> same address space.  It also will aid in the process of pruning the
> LLVMSupport library by ensuring that accidental leakage of the llvm
> namespace does not allow us to remove symbols which we rely on.

* [LLVMSupport] Re-apply "pruning" on re-forked LLVMSupport from bb102707ed

This re-applies the "pruning" commit from bb102707ed, which did the following:
- Remove many whole files,
- Remove "epoch tracking" and "reverse iteration" support from ADT containers
- Remove "ABI break checking" support from STLExtras
- Remove float parsing functions from StringExtras.h
- Remove APInt/APSInt dependencies from StringRef.h + StringRef.cpp (edit distance, int parsing)
- Remove some variants of error handling and dependency of dbgs() from ErrorHandling.h and ErrorHandling.cpp

We don't need to do the whole-file-removal step, because that's already done, but the rest is re-applied by doing:

1) git cherry-pick bb102707ed
2) manually resolving conflict in ADT/DenseMap.h by keeping HEAD's version of the chunk and removing epoch tracking from it
3) manually resolving conflict in ADT/STLExtras.h by keeping HEAD's version of the chunk and removing ABI check checking from it
4) manually resolving conflict in ADT/StringExtras.h by deleting the whole chunk (removing APInt/APSInt dependent functions)
5) manually resolving conflict in ErrorHandling.cpp by force-applying the cherry-pick's version (removing write() calls and OOM callback)
6) manually resolving the three conflicts in CMakeLists.txt files by keeping HEAD's version completely
7) git add stdlib/include/llvm/{ADT/StringSwitch.h,ADT/Twine.h,Support/raw_ostream.h}

Original commit description:

> Reduce LLVMSupport to the subset required for the runtime.  This reduces
> the TCB and the overheads of the runtime.  The inline namespace's
> preservation ensures that ODR violations do not occur.

* [LLVMSupport] Re-apply all post-import modifications on LLVMSupport that the Swift's fork has

Since the previous commits re-imported "vanilla" versions of LLVMSupport, we need to re-apply all modifications that the Swift's fork has made since the last import. More precisely:

1) git diff 7b70120440cd39d67a595a7d0ea4e828ecc6ee44..origin/main -- stdlib/include/llvm stdlib/public/LLVMSupport | git apply -3 --exclude "stdlib/include/llvm/Support/DataTypes.h" --exclude "stdlib/include/llvm/Config/llvm-config.h.cmake"
2) manually resolve conflict in STLExtras.h by applying the "__swift::__runtime" prefix to HEAD's version
3) manually resolve conflicts in StringSwitch.h by keeping HEAD's version (removing the Unicode BOM marker at the beginning of the file, keeping LLVM's version of the string functions)
4) manually resolve conflict in SwapByteOrder.h by adding the `defined(__wasi__)` part into the #if

* [LLVMSupport] Drop remaining dependencies on APSInt.h, Error.h, DataTypes.h and STLForwardCompat.h

Most cases can drop the #includes without any changes, in some cases there are
straighforward replacements (climits, cstdint). For STLForwardCompat.h, we need
to bring in parts of STLForwardCompat.h from llvm-project.

* [LLVMSupport] Remove raw_ostream.h and drop dependencies to it from the runtime

* [LLVMSupport] Simplify error reporting in SmallVector and avoid using std::string when producing fatal errors messages

Co-authored-by: Saleem Abdulrasool <compnerd@compnerd.org>
2021-12-02 17:21:51 -08:00