Groundwork for C string length tracking. Currently only handles the length of constant string literals, which is not too helpful, and only calls to strlen() are checked.

llvm-svn: 109480

A good start on ecma regex's.  Maybe even feature complete, not sure yet.  Also an unrelated fix to is_constructible thanks to Daniel Krugler.

llvm-svn: 109479

that the values they refer to aren't being deleted underneath them.

Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.

llvm-svn: 109478

trying to do replaceUsesOfWith on a constant,
which doesn't work.  Turns out we don't need to
do anything for constants.

llvm-svn: 109477

it returns a list of functions as a SymbolContextList.

Rewrote the clients of SymbolContext to use this
SymbolContextList.

Rewrote some of the providers of the data to SymbolContext
to make them respect preferences as to whether the list
should be cleared first; propagated that change out.

ClangExpressionDeclMap and ClangASTSource use this new
function list to properly generate function definitions -
even for functions that don't have a prototype in the
debug information.

llvm-svn: 109476

of the usual consistency checks used to determine when a precompiled
header is incompatible with the translation unit it's being loaded
into.

Enable this option when loading a precompiled preamble, because the
preamble loader will be performing all of this checking itself. Enable
the preamble-based test now that it's working.

This option is also useful for debugging Clang's PCH
(<rdar://problem/7532213>).

llvm-svn: 109475

- Stop reading in (and thus deserializing) every declaration in the TU when creating a dependent PCH.
- Switch the storage of a decl context's lexical declarations to a blob containing the IDs instead of a record. This is the only sane way of supporting update records later on.

llvm-svn: 109474

llvm-svn: 109473

llvm-svn: 109472

llvm-svn: 109471

its absolute path on disk. Also, introduce a fun test for the
precompiled preamble, which almost works...

llvm-svn: 109470

rewrite instructions for live range splitting.

Still work in progress.

llvm-svn: 109469

llvm-svn: 109468

if it hs side-effect to matchgcc's behaviour.
Addresses radar 8172109.

llvm-svn: 109467

llvm-svn: 109464

I knew this code duplication would bite me.

llvm-svn: 109463

llvm-svn: 109462

llvm-svn: 109458

llvm-svn: 109456

frame state after running a function.  This
caused nondeterministic crashes in the expression
evaluation code.

llvm-svn: 109454

llvm-svn: 109452

exception handling.  Also fix an extra underscore typo in one instance of
"__ARM_EABI__".  Radar 8236264.

llvm-svn: 109451

llvm-svn: 109450

The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling.

llvm-svn: 109449

llvm-svn: 109448

llvm-svn: 109447

reparsing an ASTUnit. When saving a preamble, create a buffer larger
than the actual file we're working with but fill everything from the
end of the preamble to the end of the file with spaces (so the lexer
will quickly skip them). When we load the file, create a buffer of the
same size, filling it with the file and then spaces. Then, instruct
the lexer to start lexing after the preamble, therefore continuing the
parse from the spot where the preamble left off.

It's now possible to perform a simple preamble build + parse (+
reparse) with ASTUnit. However, one has to disable a bunch of checking
in the PCH reader to do so. That part isn't committed; it will likely
be handled with some other kind of flag (e.g., -fno-validate-pch).

As part of this, fix some issues with null termination of the memory
buffers created for the preamble; we were trying to explicitly
NULL-terminate them, even though they were also getting implicitly
NULL terminated, leading to excess warnings about NULL characters in
source files.

llvm-svn: 109445

llvm-svn: 109443

to deleting it.

llvm-svn: 109441

llvm-svn: 109440

llvm-svn: 109438

Also, don't link in all the clang libraries statically.

llvm-svn: 109436

llvm-svn: 109435

we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

llvm-svn: 109434

llvm-svn: 109433

llvm-svn: 109431

llvm-svn: 109430

llvm-svn: 109429

string argument type checking.

llvm-svn: 109428

llvm-svn: 109427