DenseMap's hash function uses slightly more entropy and reduces hash collisions
significantly.  I also experimented with Hashing.h, but it didn't gave a lot of
improvement while being much more expensive to compute.

llvm-svn: 154996

backend flags in TargetOptions.h into their own class in r145714.

llvm-svn: 154993

llvm-svn: 154992

llvm-svn: 154990

at the command line.

llvm-svn: 154989

If the loop contains invoke instructions, whose unwind edge escapes the loop,
then don't try to unswitch the loop. Doing so may cause the unwind edge to be
split, which not only is non-trivial but doesn't preserve loop simplify
information.

Fixes PR12573

llvm-svn: 154987

llvm-svn: 154986

llvm-svn: 154985

Added an iOS local debugging optimization when reading the __LINKEDIT section data for files in the dyld shared cache.

llvm-svn: 154984

This introduces a threshold of 200 IV Users, which is very
conservative but should be sufficient to avoid serious compile time
sink or stack overflow. The llvm test-suite with LTO never exceeds 190
users per loop.

The bug doesn't relate to a specific type of loop. Checking in an
arbitrary giant loop as a unit test would be silly.

Fixes rdar://11262507.

llvm-svn: 154983

Follow up to r154924: check that we are in a static CMethodDecl to enable the Microsoft bug emulation regarding access to protected member during PTM creation. Not just any static function.

llvm-svn: 154982

llvm-svn: 154981

Unprintable source in diagnostics is transformed to a printable form and then
displayed with reversed colors if possible. Unprintable characters are
displayed as <U+NNNN> while bytes that do not represent valid characters are
shown as <XX>.

Column adjustments to diagnostic carets, highlighted ranges, and fixups are
made both for characters escaped as above and for characters which are
printable but take up more than a single column.

llvm-svn: 154980

Find and allows users to use the cached SDK's that might be in "~/Library/Developer/Xcode/iOS DeviceSupport".
Also enabled PlatformRemoteiOS to select an SDK using the build number in case you have mutliple 5.0 SDKs installed:

(lldb) platform select remote-ios --build 11C123

llvm-svn: 154978

llvm-svn: 154975

llvm-svn: 154974

Objective-C methods, and Objective-C properties.

llvm-svn: 154972

llvm-svn: 154971

Fixes build on MSVC

llvm-svn: 154970

explicit.

llvm-svn: 154969

llvm-svn: 154967

Update the way SDK directories are found so we are not reliant on the old "Latest" symlinks in the DeviceSupport directory.

llvm-svn: 154966

llvm-svn: 154965

llvm-svn: 154962

also fix SimplifyLibCalls to use TLI rather than compile-time conditionals to enable optimizations on floor, ceil, round, rint, and nearbyint

llvm-svn: 154960

llvm-svn: 154959

for the original Decl, for debugging purposes.

llvm-svn: 154957

and explicit specializations of function templates appropriately.

llvm-svn: 154956

transformation:

(X op C1) ^ C2 --> (X op C1) & ~C2 iff (C1&C2) == C2

should be done.  

This change has been tested:
 Using a debug+asserts build:
   on the specific test case that brought this bug to light
   make check-all
   lnt nt
   using this clang to build a release version of clang
 Using the release+asserts clang-with-clang build:
   on the specific test case that brought this bug to light
   make check-all
   lnt nt

Checking in because Evan wants it checked in.  Test case forthcoming after
scrubbing.

llvm-svn: 154955

llvm-svn: 154953

llvm-svn: 154952

llvm-svn: 154951

This reverts commit e9a3b76ba589a8a884e978273beaed0d97cf9861.

Revert "fix display of source lines with null characters"

This reverts commit 70712b276e40bbe11e5063dfc7e82ce3209929cd.

llvm-svn: 154950

llvm-svn: 154949

llvm-svn: 154948

llvm-svn: 154947

Unprintable source in diagnostics is transformed to a printable form and then
displayed with reversed colors if possible. Unprintable characters are
displayed as <U+NNNN> while bytes that do not represent valid characters are
shown as <XX>.

Column adjustments to diagnostic carets, highlighted ranges, and fixups are
made both for characters escaped as above and for characters which are
printable but take up more than a single column.

llvm-svn: 154946

llvm-svn: 154944

functionality change.

llvm-svn: 154940

block meta-data of block literals declared inside
of extern "C" functions.
// rdar://1131490

llvm-svn: 154939