llvm-svn: 168928

llvm-svn: 168927

This enables option cross-referencing and now '--' in option names are no more turned into en dashes.

llvm-svn: 168926

This patch migrates the puts optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

All the simplifiers from simplify-libcalls have now been migrated to
instcombine.  Yay!  Just a few other bits to migrate (prototype attribute
inference and a few statistics) and simplify-libcalls can finally be put
to rest.

llvm-svn: 168925

llvm-svn: 168924

MachOObjectFile owns a MachOObj, but never frees it. Both MachOObjectFile
and MachOObj want to own the MemoryBuffer, though, so we have to be careful
and give them each one of their own.

Thanks to Greg Clayton, Eric Christopher and Michael Spencer for helping
figure out what's going wrong here.

rdar://12561773

llvm-svn: 168923

llvm-svn: 168922

Follow up to 168711: It's safe to base this analysis on the found compare, just return the value for the right predicate.

Thanks to Andy for catching this.

llvm-svn: 168921

llvm-svn: 168920

llvm-svn: 168919

llvm-svn: 168914

[ASan] Simplify check added in r168861. Bail out from module pass early if the module is blacklisted.

llvm-svn: 168913

llvm-svn: 168912

llvm-svn: 168911

llvm-svn: 168910

llvm-svn: 168909

This enables cross-referencing and now '--' in option names are no more turned into en dashes.

llvm-svn: 168906

start up and clean up module passes, now that ASAN and TSAN are fixed the
tests pass

llvm-svn: 168905

llvm-svn: 168904

llvm-svn: 168902

llvm-svn: 168899

llvm-svn: 168897

This patch migrates the fputs optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168893

This patch migrates the fwrite optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168892

This patch migrates the fprintf optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168891

Handle insertelement, extractelement, shufflevector.

llvm-svn: 168889

    
The old version failed on a 3-arg instruction with (-1, 0, 0) shadows (it would
pick the 3rd operand origin irrespective of its shadow).
    
The new version always picks the origin of the rightmost poisoned operand.

llvm-svn: 168887

llvm-svn: 168886

This was found by MSVC10's STL debug mode on a test from the test suite. Sadly
std::is_heap isn't standard so there is no way to assert this without writing
our own heap verify, which looks like overkill to me.

llvm-svn: 168885

llvm-svn: 168884

If we need to split the operand of a VSELECT, it must be the mask operand. We
split the entire VSELECT operand with EXTRACT_SUBVECTOR.

llvm-svn: 168883

Allow targets to prefer TypeSplitVector over TypePromoteInteger when computing the legalization method for vectors

For some targets, it is desirable to prefer scalarizing <N x i1> instead of promoting to a larger legal type, such as <N x i32>.

llvm-svn: 168882

This is a special case of signed relational comparison where result
only depends on the sign of x.

llvm-svn: 168881

This change ensures that shadow memory accesses have the same alignment
as corresponding app memory accesses.

llvm-svn: 168880

    
Rewrite getOriginPtr in a way that lets subsequent optimizations factor out
the common part of Shadow and Origin address calculation. Improves perf by
up to 5%.

llvm-svn: 168879

llvm-svn: 168878

llvm-svn: 168877

This was already done for memmove, where it is required for correctness.
This change improves performance by avoiding copyingthe same memory twice.
Also, the library functions are given __msan_ prefix to prevent instcombine
pass from converting them back to intrinsics.

llvm-svn: 168876

The logic was not changed, only names.

llvm-svn: 168875

llvm-svn: 168874