over a phi node by applying it to each operand may be wrong if the
operation and the phi node are mutually interdependent (the testcase
has a simple example of this). So only do this transform if it would
be correct to perform the operation in each predecessor of the block
containing the phi, i.e. if the other operands all dominate the phi.
This should fix the FFMPEG snow.c regression reported by İsmail Dönmez.
llvm-svn: 119347
assignment to volatiles in C. This in effect reverts some of mjs's
work in and around r72572. Basically, the C++ standard is quite
clear, except that it lies about volatile behavior approximating
C's, whereas the C standard is almost actively misleading.
llvm-svn: 119344
include_next when not hosted or unavailable. This follows the pattern in
stdint.h and allows these headers to work even in a freestanding configuration
without a standard library.
llvm-svn: 119343
producing warnings.
This feels really fragile, and I've not audited all other argument index-based
warnings. I suspect we'll grow this bug on another warning eventually. It might
be nice to adjust the argument indices when building up the attribute AST node,
as we already have to remember about the 'this' argument within that code to
produce correct errors.
llvm-svn: 119340
argument indexes. This handles the offsets in a consistent manner for all of
the attributes which I saw working with these concepts. I've also added tests
for the attribute that motivated this: nonnull.
I consolidated the tests for format attributes into one file, and fleshed them
out a bit to trigger more of the warning cases. Also improved the quality of
some of the diagnostics that occur with invalid argument indices.
The only really questionable change here is supporting the implicit this
argument for the ownership attribute. I'm not sure it's really a sensible
concept there, but implemented the logic for consistency.
llvm-svn: 119339
for the backing of generated USRs. This optmizes
for the case when a client generates a sequence
of USRs in sequence, disposing of them soon
after generating them. By using a string buffer,
we recycle malloc'ed memory instead of constantly
malloc'ing and copying strings.
llvm-svn: 119338
but to wrap both an ASTUnit and a "string pool"
that will be used for fast USR generation.
This requires a bunch of mechanical changes, as
there was a ton of code that assumed that CXTranslationUnit
and ASTUnit* were the same.
Along with this change, introduce CXStringBuf,
which provides an llvm::SmallVector<char> backing
for repeatedly generating CXStrings without a huge
amount of malloc() traffic. This requires making
some changes to the representation of CXString
by renaming a few fields (but keeping the size
of the object the same).
llvm-svn: 119337
- Add a new Kind of ProgramPoint: PostInitializer.
- Still use GRStmtNodeBuilder. But special handling PostInitializer in
GRStmtNodeBuilder::GenerateAutoTransition().
- Someday we should clean up the interface of GRStmtNodeBuilder.
llvm-svn: 119335
in more situations. In particular, for code like
template<class T> void Fn() { T* x; delete x; }
getDestroyedType() will now return T rather than T*, as it would
before this change. On the other hand, for code like this:
template<class T> void Fn() { T x; delete x; }
getDestroyedType() will return an empty QualType(), since it doesn't
know what the actual destroyed type would be. Previously, it would
return T.
OKed by rjmccall
llvm-svn: 119334
ReadThread stuff into the main Process class (out of the Process Plugins).
This has the (intended) side effect of disabling the command line tool
from reading input/commands while the process is running (the input is
directed to the running process rather than to the command interpreter).
llvm-svn: 119329
we're using the stack pointer to define the CFA again. Makes unwinds
while sitting at the 'ret' instruction work, assuming we have accurate
function address bounds.
llvm-svn: 119327
'db', 'ib', 'da') instead of having that mode as a separate field in the
instruction. It's more convenient for the asm parser and much more readable for
humans.
<rdar://problem/8654088>
llvm-svn: 119310
The live range of a register defined by an early clobber starts at the use slot,
not the def slot.
Except when it is an early clobber tied to a use operand. Then it starts at the
def slot like a standard def.
llvm-svn: 119305
Argyrios Kyrtzidis