We've had a rash of bugs due to inconsistencies between how IRGen and the runtime think types are laid out. Add a '-verify-type-layout' mode to the frontend that causes IRGen to emit a bunch of code that compares its static assumptions against what the runtime value witness does.
Swift SVN r24918
This has been long in coming. We always had it in IRGenOpts (in string form).
We had the version number in LangOpts for availability purposes. We had to
pass IRGenOpts to the ClangImporter to actually create the right target.
Some of our semantic checks tested the current OS by looking at the "os"
target configuration! And we're about to need to serialize the target for
debugging purposes.
Swift SVN r24468
Previously we hardcoded a few important default CPUs, ABIs, and features into
Swift's driver, duplicating work in Clang. Now that we're using Clang's
driver to create the Clang "sub-compiler", we can delegate this work to Clang.
As part of this, I've dropped the options for -target-abi (which was a
frontend-only option anyway) and -target-feature (which was a hidden driver
option and is a frontend-only option in /Clang/). We can revisit this later
if it becomes interesting. I left in -target-cpu, which is now mapped
directly to Clang's -mcpu=.
Swift SVN r22449
We were already effectively doing this everywhere /except/ when building
the standard library (which used -O2), so just use the model we want going
forward.
Swift SVN r20455
optimization/inlining scheme.
It was actually used while building a release version of stdlib, and
effectively disabled safety checks in debug builds.
Swift SVN r19461
Doing so causes the linker to list the framework itself as one of its
dependencies, which confuses tools that depend on the linker's dependency
output.
<rdar://problem/17006845>
Swift SVN r18578
To help with the playground's transition to top level code, hand the -playground frontend flag down to IRGenOptions, so that IRGen knows to emit runtime initializer code for classes and categories into top_level_code rather than an attributed function.
Swift SVN r18479
This option puts a special symbol into the generated object files that other
object files can reference to force the library to be loaded.
The next commit will modify the way we serialize autolinking information so
that importers of this module will always emit a reference to this symbol.
This means the library will be linked into the final binary even if no other
symbols are used (which happens for some of our overlays that just add
category methods to Objective-C classes).
Part of <rdar://problem/16829587>
Swift SVN r17750
which provides the Neon feature. Do all the necessary
plumbing to get this from the driver to the backend.
Also, support -arch arm64, and diagnose bad -arch values
instead of silently ignoring them. It's not clear to me
that we really want to support -arch as an alternative
to -target, but unless we rip it out or establish some
sort of real policy about it, it really ought to do
something approximating the right thing.
It would be nice if we could abstract enough of clang's
driver that we could re-use some of its basic logic about
tool chains and targets instaed of iteratively
rediscovering everything it does that's actually
critically important.
Swift SVN r16447
Finishes the removal of the old "wrapped" module section that was made
unnecessary in r12922/3. Now that we no longer use the old compiler, we
don't need this at all. That also removes the need for SwiftTargetMachine.
No functionality change; this was all dead code.
Swift SVN r14758
Adjusted how this option is handled: it is now set in IRGenOptions. If set,
this prevents the relevant passes from being added at all, instead of making
them no-ops.
Swift SVN r13005
