My variadics patch, r169588, changed these calls to typically be
bitcasts rather than calls to a supposedly variadic function.
This totally subverted a hack where we intentionally dropped
excess arguments from such calls in order to appease the inliner
and a "warning" from the optimizer.  This patch extends the hack
to also work with bitcasts, as well as teaching it to rewrite
invokes.

llvm-svn: 170034

rdar://12851905

llvm-svn: 170010

We don't handle array destructors correctly yet, but we now apply the same
hack (explicitly destroy the first element, implicitly invalidate the rest)
for multidimensional arrays that we already use for linear arrays.

<rdar://problem/12858542>

llvm-svn: 170000

call sites as tail calls unconditionally.  While it's theoretically true that
this is just an optimization, it's an optimization that we very much want to
happen even at -O0, or else ARC applications become substantially harder to
debug.  See r169796 for the llvm/fast-isel side of things.
rdar://12553082

llvm-svn: 169996

No test case, this is debugging code.

llvm-svn: 169980

is switched of by about 0.8% (tested with int i<N>).

Additionally, this puts computing the diagnostic class into the hot
path more when parsing, in preparation for upcoming optimizations
in this area.

llvm-svn: 169976

clang/lib/Driver/Driver.cpp: Split COMPILER_PATH according to llvm::sys::PathSeparator, that is ';' in Win32 hosts.

Thanks to Bogon Kim!

llvm-svn: 169964

Don't warn about disabled macro expansion if we see the name of a function-like macro which isn't immediately followed by '('. FreeBSD's stdio.h #defines foo(x) to (foo)(x), apparently.

llvm-svn: 169960

even if the directive is inside a declaration.

Fixes rdar://11548788 & http://llvm.org/PR12970

llvm-svn: 169949

llvm-svn: 169947

"ansi-escape-sequences" is easy convenient to exclude win32. Please be patient.

llvm-svn: 169945

llvm-svn: 169923

llvm-svn: 169922

latter is rather a mess to type.

llvm-svn: 169919

llvm-svn: 169917

Add -fslp-vectorize (with -ftree-slp-vectorize as an alias for gcc compatibility)
to provide a way to enable the basic-block vectorization pass. This uses the same
acronym as gcc, superword-level parallelism (SLP), also common in the literature,
to refer to basic-block vectorization.

Nadav suggested this as a follow-up to the adding of -fvectorize.

llvm-svn: 169909

byref variable requires extended layout info. to prevent 
a crash involving arrays declared __block. // rdar://12787751

llvm-svn: 169908

unavailable due to availability attributes. <rdar://problem/12798237>

llvm-svn: 169903

Instead of doing a binary search over the whole diagnostic table (which weighs
a whopping 48k on x86_64), use the existing enums to compute the index in the
table. This avoids loading any unneeded data from the table and avoids littering
CPU caches with it. This code is in a hot path for code with many diagnostics.

1% speedup on -fsyntax-only gcc.c, which emits a lot of warnings.

llvm-svn: 169890

compatibility with gcc.
rdar://12839978 

llvm-svn: 169888

'file' builtin, and fix up a docstring a little.

Hat tip to Sebastian Kreft Carreno at Google for noticing the bug.

llvm-svn: 169887

rdar://12839978 

llvm-svn: 169885

Summary:
A few small coding style changes for StmtDumper, including:
- rename Dump* methods to dump*
- uninline some methods
- comment fixes
- whitespace fixes

Please review and commit if okay.

Reviewers: alexfh

Reviewed By: alexfh

CC: cfe-commits, alexfh, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D190

llvm-svn: 169866

Summary:
Also rename DumpDeclarator() to dumpDecl(). Once Decl dumping is added, these will be the two main methods of the class, so this is just for consistency in naming.

There was a DumpStmt() method already, but there was no point in having it, so I have merged it into VisitStmt(). Similarly, DumpExpr() is merged into VisitExpr().

Reviewers: alexfh

Reviewed By: alexfh

CC: cfe-commits, alexfh

Differential Revision: http://llvm-reviews.chandlerc.com/D156

llvm-svn: 169865

a file or directory, allowing just a stat call if a file descriptor
is not needed.

Doing just 'stat' is faster than 'open/fstat/close'.
This has the effect of cutting down system time for validating the input files of a PCH.

llvm-svn: 169831

This became redundant after we removed the stat cache.

llvm-svn: 169830

entries of the same file.

This can happen because the file was "included" multiple times and is
referenced by multiple SLocEntries.

llvm-svn: 169829

Sorry for my 3rd commit :(

llvm-svn: 169827

clang/test/Driver/debug-options-as.c: Fixup not to use prefix=S. I didn't know "REQUIRES:" would match --check-prefix=S ...

llvm-svn: 169826

It is not set at targetting cygming. See PR12920.

llvm-svn: 169824

llvm/Target/TargetMachine.h will not provide "llvm/TargetTransformInfo.h" any more.

llvm-svn: 169816

We don't want to relax all instructions in

$ clang -c test.s

since most users don't pass -O when using the driver to assemble.

On the other hand, -save-temps should not change the output unnecessary, so in

$ clang -c test.c -save-temps

we should relax all instructions.

llvm-svn: 169815

definition, rather than at the end of the definition of the set of nested
classes. We still defer checking of the user-specified exception specification
to the end of the nesting -- we can't check that until we've parsed the
in-class initializers for non-static data members.

llvm-svn: 169805

inlined.

Fixes a false positive that occurs if a user writes their own
initWithBytesNoCopy:freeWhenDone wrapper.

llvm-svn: 169795

llvm-svn: 169778

llvm-svn: 169775

llvm-svn: 169768

Also, add the -S option.

llvm-svn: 169763

was #import'ed.

llvm-svn: 169761

This prevents the functions generated by that pass from using the red zone.
<rdar://problem/12843084>

llvm-svn: 169755