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

llvm-svn: 154953

llvm-svn: 154951

llvm-svn: 154948

llvm-svn: 154944

llvm-svn: 154936

Patch by Vladimir Medic. 

llvm-svn: 154935

llvm-svn: 154930

llvm-svn: 154927

This made the test fail with -mcpu=generic (when building on a non-x86 host).

llvm-svn: 154926

llvm-svn: 154921

llvm-svn: 154916

llvm-svn: 154915

This isn't right either, reverting for now.

llvm-svn: 154910

llvm-svn: 154908

llvm-svn: 154907

llvm-svn: 154905

for the life of me remember why I wrote it this way, but I can't see any good
reason for it now. This patch replaces the custom linked list with an ilist.

This change should preserve the existing numberings exactly, so no generated code
should change (if it does, file a bug!).

llvm-svn: 154904

llvm-svn: 154895

re-done by wiser souls.

llvm-svn: 154894

llvm-svn: 154892

about what folks should expect w.r.t. the new algorithm.

llvm-svn: 154891

llvm-svn: 154889

instructions with writebacks. And add test a case for all opcodes handed by
DecodeVLD2DupInstruction() in ARMDisassembler.cpp .

llvm-svn: 154884

temporarily XFAIL this test until post RA
live-ins is properly enabled.

llvm-svn: 154882

llvm-svn: 154881

llvm-svn: 154879

llvm-svn: 154878

llvm-svn: 154877

rdar://11252521

llvm-svn: 154875

during Post RA scheduling in X86,
until the X86 target is changed to properly set up
post RA liveness.

llvm-svn: 154874

llvm-svn: 154872

llvm-svn: 154870

the MCJIT execution engine.

The GDB JIT debugging integration support works by registering a loaded
object image with a pre-defined function that GDB will monitor if GDB
is attached. GDB integration support is implemented for ELF only at this
time. This integration requires GDB version 7.0 or newer.

Patch by Andy Kaylor!

 

llvm-svn: 154868

both fallthrough and a conditional branch target the same successor.
Gracefully delete the conditional branch and introduce any unconditional
branch needed to reach the actual successor. This fixes memory
corruption in 2009-06-15-RegScavengerAssert.ll and possibly other tests.

Also, while I'm here fix a latent bug I spotted by inspection. I never
applied the same fundamental fix to this fallthrough successor finding
logic that I did to the logic used when there are no conditional
branches. As a consequence it would have selected landing pads had they
be aligned in just the right way here. I don't have a test case as
I spotted this by inspection, and the previous time I found this
required have of TableGen's source code to produce it. =/ I hate backend
bugs. ;]

Thanks to Jim Grosbach for helping me reason through this and reviewing
the fix.

llvm-svn: 154867

A trailing comma means no argument at all (i.e., as if the comma were not
present), not an empty argument to the invokee.

rdar://11252521

llvm-svn: 154863

rdar://11252521

llvm-svn: 154862

Add an extra test to ldr_post with an immediate increment.

llvm-svn: 154859