llvm-svn: 159720

159509 and 159479 are reverted. It would be really nice to be able to run
just the coalescer :-(

llvm-svn: 159715

llvm-svn: 159707

Optimized diff operation: implemented the case when LHS and RHS subsets contains single numbers only.

llvm-svn: 159704

  IntegersSubsetMapping
  - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement
    if possible.

llvm-svn: 159703

llvm-svn: 159701

from IfConversion.cc), and fix some spelling and grammar in the surrounding
prose.

llvm-svn: 159699

Implement the TII hooks needed by EarlyIfConversion to create cmov
instructions and estimate their latency.

Early if-conversion is still not enabled by default.

llvm-svn: 159695

This pass performs if-conversion on SSA form machine code by
speculatively executing both sides of the branch and using a cmov
instruction to select the result. This can help lower the number of
branch mispredictions on architectures like x86 that don't have
predicable instructions.

The current implementation is very aggressive, and causes regressions on
mosts tests. It needs good heuristics that have yet to be implemented.

llvm-svn: 159694

Thanks Duncan for the idea

llvm-svn: 159687

These give quite a bit more information about the DebugInfo and makes it more
readable.

llvm-svn: 159680

(LLVM optimizers cannot do this optimization by themselves)

llvm-svn: 159668

Unfortunately this change requires the cache map to hold WeakVHs instead

llvm-svn: 159667

llvm-svn: 159666

llvm-svn: 159661

  IntegersSubsetMapping
  Added new methods
  - add(self& RHS, SuccessorClass *S)
  - detachCase
  - removeCase
  - findSuccessor
  - getCases
  - getCaseSingleNumber
  - isOverlapped
  

llvm-svn: 159660

  IntegersSubsetMapping
  - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement
    if possible.

llvm-svn: 159659

Optimized diff operation: implemented the case when LHS and RHS subsets contains single numbers only.

llvm-svn: 159658

llvm-svn: 159657

some, and allows the routine to be inlined into common callers. The
various bits that hit this code in their hotpath seem slightly lower on
the profile, but I can't really measure a performance improvement as
everything seems to still be bottlenecked on likely cache misses. =/

llvm-svn: 159648

llvm-svn: 159647

llvm-svn: 159646

llvm-svn: 159645

Add aliases for pblendvb, blendvpd, and blendvps instructions with the implicit xmm0 operand specified. Fixes PR13252.

llvm-svn: 159644

llvm-svn: 159643

llvm-svn: 159642

  - execute_external should be;
    - Not on Win32.
    - Using bash.
    In reverse, "execute_internal" shoud be (Win32 && !bash).

  - lit.getBashPath() behaves differently before and after tweaking $PATH.

I will add a few explanations there later.

llvm-svn: 159641

It fixes failure in test/MC/MachO/gen-dwarf.s on Win32 w/o bash.

llvm-svn: 159640

llvm-svn: 159639

llvm-svn: 159638

llvm-svn: 159637

llvm-svn: 159636

   
    inlineasm-cnstrnt-bad-r-1.ll is NOT supposed to fail, so it was removed.    This resulted in the removal of a negative test (inlineasm-cnstrnt-bad-r-1.ll)
    

llvm-svn: 159625

it appears to be breaking the bots.

This reverts commit 1b055ce320fa13f6f1ac81670d11b45e01f79876.

llvm-svn: 159619

This reverts commit b2833d9dcba88c6f0520cad760619200adc0442c.

llvm-svn: 159618

llvm-svn: 159617

It appears to have caught a use-after-free introduced as by r159567
and/or friends which call 'addPass' from many more places. The bug in
'addPass' doesn't appear to be new, and was spotted by inspection when
ASan shown a bright light of a stacktrace at these functions.

Hopefully this will fix the ASan failure -- I have no test case other
than running an ASan-built clang over the test suite.

llvm-svn: 159614

llvm-svn: 159611

   
    inlineasm-cnstrnt-bad-r-1.ll is NOT supposed to fail, so it was removed.    This resulted in the removal of a negative test (inlineasm-cnstrnt-bad-r-1.ll)
    

llvm-svn: 159610

llvm-svn: 159599