* Mark libc math shims with always_inline attribute
We want these to always be inlined, so mark them with ... always_inline.
The compiler happened to do the right thing with them previously, but we
shouldn't depend on that.
<rdar://problem/30043258> master-next: IRGen/builtin_math.swift failing because sqrt(4) is not constant folded
* Go back to using static inline implementations of sqrt and remainder now that SR-2089 is resolved.
* Fix typo: sqrt -> squareRoot.
* Added test for constant-folding sqrt with -O.
* Added test case requested by jrose.
* Use intrinsics instead of Libc stubs where we can.
This replaces most of the stubs used for basic operations on these
types with intrinsics, eliminating a level of indirection for fma,
ceil, floor, round, trunc.
square root and remainder still require stubs because there is no
remainder intrinsic and we can't use the square root intrinsic because
its behavior is undefined for negative inputs. A previous commit
apparently either the compiler annotates static inline stubs wrong
or the SIL verifier can't handle them, so that change was backed out.
* Explicitly CHECK-NOT @llvm.sqrt instead of looking for @sqrt.
This reverts commit 999885fc8d.
This breaks the stdlib serialization tests:
Assertion failed: (!hasSharedVisibility(F->getLinkage()) && "external declaration of SILFunction with shared visibility is not " "allowed"), function visitSILFunction, file /s/sptr/swift/lib/SIL/SILVerifier.cpp, line 3267.
Implemented SE-0113 + residual SE-0067 operations.
- adds `rounded` and `round` to `FloatingPoint`, from SE-0113.
- adds `remainder`, `squareRoot`, and `addingProduct`, from SE-0067.
- adds basic test coverage for all of the above.
- provides a default implementation of `nextDown` on `FloatingPoint`.
This was a typo in the commit. Unfortunately, we dont have any tests for the
cygwin target, so this wasnt caught. The alternate code path is for the MSVC
code path which is under development via cross-compilation.
Windows uses `unsigned int` for `__SIZE_TYPE__` on the 32-bit targets and `long
long unsigned int` for 64-bit targets. Reflect this for the `__swift_size_t`
type definition.
This patch is for libswiftCore.lib, linking with the library set of Visual Studio 2015. Clang with the option -fms-extension is used to build this port.
This is the approved subpatch of a large patch.
This is a purely mechanical change replacing the attributes with the reserved
spelling. Compilers are to not error when they encounter a reserved spelling
for an attribute which they do not support.
This adds an Android target for the stdlib. It is also the first
example of cross-compiling outside of Darwin.
Mailing list discussions:
1. https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20151207/000171.html
2. https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20151214/000492.html
The Android variant of Swift may be built using the following `build-script`
invocation:
```
$ utils/build-script \
-R \ # Build in ReleaseAssert mode.
--android \ # Build for Android.
--android-ndk ~/android-ndk-r10e \ # Path to an Android NDK.
--android-ndk-version 21 \
--android-icu-uc ~/libicu-android/armeabi-v7a/libicuuc.so \
--android-icu-uc-include ~/libicu-android/armeabi-v7a/icu/source/common \
--android-icu-i18n ~/libicu-android/armeabi-v7a/libicui18n.so \
--android-icu-i18n-include ~/libicu-android/armeabi-v7a/icu/source/i18n/
```
Android builds have the following dependencies, as can be seen in
the build script invocation:
1. An Android NDK of version 21 or greater, available to download
here: http://developer.android.com/ndk/downloads/index.html.
2. A libicu compatible with android-armv7.
...and explicitly mark symbols we export, either for use by executables or for runtime-stdlib interaction. Until the stdlib supports resilience we have to allow programs to link to these SPI symbols.
* Switch to calling `putchar_unlocked()` instead of `putchar()` for
actual printing. We're already locking stdout with `flockfile()`, so
there's no need for the redundant lock that `putchar()` uses.
* Add an explicit lock to the output stream in `dump()`. This means the
entire dump is printed with the lock held, which will prevent the
output of `dump()` from mixing with prints on other threads.
* Use `_debugPrint_unlocked()` instead of `debugPrint()` in
`_adHocPrint()`. The output stream is already locked while this
function is executing. Rename the function to `_adHocPrint_unlocked()`
to make this explicit.
* Use `targetStream.write()` and `_print_unlocked()` instead of
`print()` in `_dumpObject()`. This removes the redundant locking, and
also eliminates the creation of intermediate strings. Rename the
function to `_dumpObject_unlocked()` to make this explicit.
* Use `targetStream.write()`, `_print_unlocked()`, and
`_debugPrint_unlocked()` in `_dumpSuperclass()`. This removes the
redundant locking, and also eliminates the creation of intermediate
strings. Rename the function to `_dumpSuperclass_unlocked()` to make
this explicit.
* Use `_debugPrint_unlocked()` instead of `debugPrint()` in
`String.init(reflecting:)`. This shouldn't really make much of a
difference but it matches the usage of `_print_unlocked()` in
`String.init(_:)`.
The net result is that all printing is still covered under locks like
before, but stdout is never recursively locked. This should result in
slightly faster printing. In addition, `dump()` is now covered under a
single lock so it can't mix its output with prints from other threads.
