This is the first commit of a large series which will add support for the
QPX vector instruction set to the PowerPC backend. This instruction set is
used on the IBM Blue Gene/Q supercomputers.

llvm-svn: 173973

llvm-svn: 173971

This reverts commit r173952

llvm-svn: 173970

Boilerplate is often the hardest part of getting started with these
kinds of things, so throw them a bone.

llvm-svn: 173969

llvm-svn: 173968

llvm-svn: 173966

to printing the default case.  This is a fix for PR15023.

llvm-svn: 173965

llvm-svn: 173963

Use the number of 'slots' in the AttributeSetImpl being 0 to indicate that the AttributeSet is empty.

llvm-svn: 173962

llvm-svn: 173961

llvm-svn: 173960

This caused hangs as we processed the same invalid byte over and over.

<rdar://problem/13115651>

llvm-svn: 173959

Redefine the shallow mode to inline all functions for which we have a
definite definition (ipa=inlining). However, only inline functions that
are up to 4 basic blocks large and cut the max exploded nodes generated
per top level function in half.

This makes shallow faster and allows us to keep inlining small
functions. For example, we would keep inlining wrapper functions and
constructors/destructors.

With the new shallow, it takes 104s to analyze sqlite3, whereas
the deep mode is 658s and previous shallow is 209s.

llvm-svn: 173958

llvm-svn: 173957

llvm-svn: 173956

Thanks Jordan!

llvm-svn: 173955

llvm-svn: 173954

Just makes the code a little cleaner, and easier to reason about.

llvm-svn: 173953

for "#define X X".

This is a pattern that, for example, stdbool.h uses.
rdar://12435773

llvm-svn: 173952

This is faster for the analyzer to process than inlining the constructor
and performing a member-wise copy, and it also solves the problem of
warning when a partially-initialized POD struct is copied.

Before:
  CGPoint p;
  p.x = 0;
  CGPoint p2 = p; <-- assigned value is garbage or undefined

After:
  CGPoint p;
  p.x = 0;
  CGPoint p2 = p; // no-warning

This matches our behavior in C, where we don't see a field-by-field copy.

<rdar://problem/12305288>

llvm-svn: 173951

llvm-svn: 173950

Patch by Laszlo Nagy

llvm-svn: 173949

"ExecutionAction()".

llvm-svn: 173948

The vtable pointer field is not necessarily a pointer and hence cannot be used for validation

llvm-svn: 173947

Given source IR:
call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15
we used to generate 
call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29
!27 = metadata !{null}

With this patch, we will correctly generate
call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28

Looking up %argc.addr in ValueMap will return null, since %argc.addr is already
correctly set up, we can use identity mapping.

llvm-svn: 173946

More details in this thread: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130128/163783.html

Patch by JF Bastien

llvm-svn: 173943

llvm-svn: 173942

llvm-svn: 173941

llvm-svn: 173939

llvm-svn: 173938

llvm-svn: 173937

llvm-svn: 173936

llvm-svn: 173935

llvm-svn: 173934

asan/tsan: manually define FUTEX constants, because <linux/futes.h> header is broken on some linux distributions

llvm-svn: 173933

llvm-svn: 173932

This reimplements r173850 with a better approach:
(1) use a TableGen-generated matcher instead of doing a linear search;
(2) avoid allocations for new strings by converting code points to string
    iterals with TableGen.

llvm-svn: 173931

llvm-svn: 173930

llvm-svn: 173929

And make msan_interface.h C-compatible.

llvm-svn: 173928