LiveIntervalUpdate validators weren't recorded after the calls to std::for_each.  Turns out std::for_each doesn't update the variable passed in for the functor but instead copy constructs a new one.

llvm-svn: 155041

llvm-svn: 155040

StringMap iterators are not deterministic, and that's more important
here than speed or memory.

llvm-svn: 155039

llvm-svn: 155038

llvm-svn: 155037

Same color scheme as clang uses. The colors are only enabled if the output is a tty.

llvm-svn: 155035

llvm-svn: 155034

llvm-svn: 155032

llvm-svn: 155031

llvm-svn: 155030

llvm-svn: 155027

llvm-svn: 155026

llvm-svn: 155025

llvm-svn: 155024

llvm-svn: 155016

llvm-svn: 155015

That way we get source line number information from the diagnostics.

llvm-svn: 155014

llvm-svn: 155013

llvm-svn: 155012

llvm-svn: 155010

llvm-svn: 155009

llvm-svn: 155004

Fix the bahavior of the disassembler when decoding unpredictable mrs instructions on ARM. Now the diasassembler emmits warnings instead of errors.

llvm-svn: 155002

Added support for unpredictable mcrr/mcrr2/mrrc/mrrc2 ARM instruction in the disassembler. Since the upredicability conditions are complex, C++ code was added to handle them.

llvm-svn: 155001

Fixed decoding for the ARM cdp2 instruction. The restriction on the coprocessor number was removed for this instruction.

llvm-svn: 155000

Add suport for unpredicatble cases of the cmp, tst, teq and cmnz ARM instructions in the disassembler.

llvm-svn: 154999

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

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: 154985

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

llvm-svn: 154971

Fixes build on MSVC

llvm-svn: 154970

llvm-svn: 154967

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

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