llvm-svn: 160599

llvm-svn: 160598

Test case will be added later when long branch patch is checked in.

llvm-svn: 160597

baby steps toward fixing some problems with inbound GEPs that overflow, as discussed 2 months ago or so.
Make sure we do not emit index computations with NSW flags so that we dont get an undef value if the GEP overflows

llvm-svn: 160589

move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place.
No functionality change.

llvm-svn: 160587

Remove unused private member variables uncovered by the recent changes to clang's -Wunused-private-field.

llvm-svn: 160583

llvm-svn: 160576

LiveRangeEdit::foldAsLoad() can eliminate a register by folding a load
into its only use. Only do that when the load is safe to move, and it
won't extend any live ranges.

This fixes PR13414.

llvm-svn: 160575

CI's name, and then used the StringRef pointing at its old name. I'm
fixing it by storing the name in a std::string, and hoisting the
renaming logic to happen always. This is nicer anyways as it will allow
the upgraded IR to have the same names as the input IR in more cases.

Another bug found by AddressSanitizer. Woot.

llvm-svn: 160572

PHIElimination splits critical edges when it predicts it can resolve
interference and eliminate copies. It doesn't split the edge if the
interference wouldn't be resolved anyway because the phi-use register is
live in the critical edge anyway.

Teach PHIElimination to split loop exiting edges with interference, even
if it wouldn't resolve the interference. This removes the necessary
copies from the loop, which is still an improvement from injecting the
copies into the loop.

The test case demonstrates the improvement. Before:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  movl  %esi, %eax
  je  LBB0_1

After:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  je  LBB0_1

  movl  %esi, %eax

llvm-svn: 160571

llvm-svn: 160567

color.

llvm-svn: 160559

llvm-svn: 160558

llvm-svn: 160557

subprocesses.

llvm-svn: 160556

GetBestDestForJumpOnUndef() assumes there is at least 1 successor, which isn't
true if the block ends in an indirect branch with no successors. Fix this by
bailing out earlier in this case.

llvm-svn: 160546

[asan] make sure that the crash callbacks do not get merged (Chandler's idea: insert an empty InlineAsm). Change the order in which the new BBs are inserted: the slow path BB is insert between old BBs, the crash BB is inserted at the end. Don't create an empty BB (introduced by recent commits). Update the test. The experimental code that does manual crash callback merge will most likely be deleted later. 

llvm-svn: 160544

Don't use implicit register operands to calculate L-bit for AVX instructions. Needed because super reg defs and kills are added as implicit operands on 128-bit instructions. Fixes PR13349. Patch by Jose Fonseca.

llvm-svn: 160543

Make RegisterOperand a subclass of DAGOperand so that RegisterOperands can be passed into multiclasses that take DAGOperands as multiclass parameters.

llvm-svn: 160540

llvm-svn: 160532

llvm-svn: 160531

memory. This makes clang play nice with leak checkers.

llvm-svn: 160529

llvm-svn: 160525

Atom buildbot will auto-detect Atom.

llvm-svn: 160521

processor.

Patches by Tyler Nowicki, Andy Zhang, and Preston Gurd!

llvm-svn: 160520

This fixes a bunch of make check failures of the form:

Unknown Architecture Version.
UNREACHABLE executed at ../lib/Target/Hexagon/HexagonSubtarget.cpp:60!

llvm-svn: 160518

It is optimal at least up to 7 bits (I've tested all such cases)
This change to truncate() allows a little simplification to the multiplication code,
and it also makes multiplication optimal :)

llvm-svn: 160512

llvm-svn: 160507

test/DebugInfo/dwarfdump-test.test: Tweak expressions for Win32 to match backslashes. They are still odd, though.

For example, Paths are printed on Win32 as below;

/tmp/dbginfo\def2.cc:4:0
/tmp/dbginfo\include\decl2.h:1:0
/tmp/include\decl.h:5:0

llvm-svn: 160505

No functionality change.

llvm-svn: 160501

llvm-svn: 160500

(instead of basenames) from DWARF. Use this behavior in llvm-dwarfdump tool.

Reviewed by Benjamin Kramer.

llvm-svn: 160496

llvm-svn: 160493

llvm-svn: 160483

llvm-svn: 160482

llvm-svn: 160480

llvm-svn: 160479

llvm-svn: 160478

llvm-svn: 160477

llvm-svn: 160476