Convert the internal representation of the Attributes class into a pointer to an
opaque object that's uniqued by and stored in the LLVMContext object. The
Attributes class then becomes a thin wrapper around this opaque
object. Eventually, the internal representation will be expanded to include
attributes that represent code generation options, etc.

llvm-svn: 165917

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

llvm-svn: 165915

fails to return a value, to make debugging this issue easier.

llvm-svn: 165914

a problem with __int128 arithmetic but the runtime was not built with __int128
support.

llvm-svn: 165913

llvm-svn: 165912

llvm-svn: 165911

This reduces the spam make test leaves behind in /tmp. The assert isn't
particularly useful because it's not run with -disable-free (the default when
using the clang driver) but should cover all -cc1 tests.

llvm-svn: 165910

llvm-svn: 165908

Add a basic unit test for ImmutableMap. Found by inspection.

llvm-svn: 165907

llvm-svn: 165905

llvm-svn: 165904

Erasing from the beginning or middle of the vector is expensive, remove_if can
do it in linear time even though it's a bit ugly without lambdas.

No functionality change.

llvm-svn: 165903

llvm-svn: 165902

llvm-svn: 165900

llvm-svn: 165899

Can't follow the intrusive linked list when the element is gone.

llvm-svn: 165898

llvm-svn: 165897

Remove the bitwise AND operators from the Attributes class. Replace it with the equivalent from the builder class.

llvm-svn: 165896

Remove the bitwise assignment OR operator from the Attributes class. Replace it with the equivalent from the builder class.

llvm-svn: 165895

Remove the bitwise OR operator from the Attributes class. Replace it with the equivalent from the builder class.

llvm-svn: 165894

Remove the bitwise XOR operator from the Attributes class. Replace it with the equivalent from the builder class.

llvm-svn: 165893

Remove the bitwise NOT operator from the Attributes class. Replace it with the equivalent from the builder class.

llvm-svn: 165892

llvm-svn: 165891

llvm-svn: 165890

llvm-svn: 165889

llvm-svn: 165888

llvm-svn: 165887

Eli discovered that __noop's sema behavior also needs some love. I filed
PR14081 for that and intend to improve it.

llvm-svn: 165886

llvm-svn: 165885

Use traits_type::to_int_type in basic_streambuf<_CharT, _Traits>::xsputn when calling overflow to correctly handle negative signed character types.  This fixes http://llvm.org/bugs/show_bug.cgi?id=14074.

llvm-svn: 165884

Make the type_info for __shim_type_info visible.  This should address some failing dynamic_casts that a few applications are doing on the type_info hierarchy.

llvm-svn: 165883

Dimitry Andric:  FreeBSD only:  Add the C11 aligned_alloc to <cstdlib> and adjust the inclusion of quick_exit.

llvm-svn: 165882

llvm-svn: 165881

llvm-svn: 165880

llvm-svn: 165879

llvm-svn: 165878

The new coalescer can merge a dead def into an unused lane of an
otherwise live vector register.

Clear the <dead> flag when that happens since the flag refers to the
full virtual register which is still live after the partial dead def.

This fixes PR14079.

llvm-svn: 165877

llvm-svn: 165876

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

llvm-svn: 165875

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

llvm-svn: 165874