This reverts commit r193255 and instead creates an lto_bool_t typedef
that points to bool, _Bool, or unsigned char depending on what is
available.  Only recent versions of MSVC provide a stdbool.h header.

Reviewers: rafael.espindola

Differential Revision: http://llvm-reviews.chandlerc.com/D2019

llvm-svn: 193377

llvm-svn: 193370

llvm-svn: 193350

llvm-svn: 193344

LLVM optimizers may widen accesses to packed structures that overflow the structure itself, but should be in bounds up to the alignment of the object

llvm-svn: 193317

llvm-svn: 193315

llvm-svn: 193312

This was a fundamental flaw in llvm-cov where it treated the values in
the GCDA files as block counts instead of edge counts. This created
incorrect line counts when branching was present. Instead, the edge
counts should be summed to obtain the correct block count.

The fix was tested using custom test files as well as single source
files from the test-suite directory. The behaviour can be verified by
reading the GCOV documentation that describes the GCDA spec ("ARC_COUNTS
gives the counter values for those arcs that are instrumented") and the
header description provided by GCOVProfiling.cpp ("instruments the code
that runs to records (sic) the edges between blocks that run and emit a
complementary "gcda" file on exit").

llvm-svn: 193299

Patch co-developed with Yaron Keren.

llvm-svn: 193291

llvm-svn: 193273

There are a few motivations for this:
- Using a map allows for checking if line is in map. This differentiates
  unexecutable lines (such as comments) from unexecuted logical lines of
  code. "#####" is now outputted in this case, in line with gcov.
- Source files are no longer read in twice: once when storing the line
  counts, and once when outputting the data.
- Greatly simplifies the function FileInfo::addLineCount().

llvm-svn: 193264

FIXME: I don't think it'd be smart.
llvm-svn: 193256

llvm-svn: 193255

llvm-svn: 193253

 Major steps include:
 1). introduces a not-addr-taken bit-field in GlobalVariable
 2). GlobalOpt pass sets "not-address-taken" if it proves a global varirable 
    dosen't have its address taken.
 3). AA use this info for disambiguation. 

llvm-svn: 193251

Pacifies GCC's -Wstrict-prototypes.

llvm-svn: 193249

llvm-svn: 193247

For some targets, it is useful to be able to look at the original
type of an argument without having to dig through the original IR.

This also fixes a bug in SelectionDAGBuilder where InputArg.PartOffset
was not taking into account the offset of structure elements.

Patch by: Justin Holewinski

Tom Stellard:
  - Changed the type of ArgVT to EVT, so it can store non-simple types
    like v3i32.

llvm-svn: 193214

Line counts in llvm-cov are read in as 64-bit integers but were being truncated
to 32-bit in collectLineCounts(), which caused overflow for large counts.
This patch fixes all counts to be uint64_t.

Patch by Yuchen Wu!

llvm-svn: 193172

llvm-svn: 193165

VTList has a long life cycle through the module and getVTList is frequently called. In current getVTList, sequential search over a std::vector is used, this is inefficient in big module.
This patch use FoldingSet to implement hashing mechanism when searching.

Reviewer: Nadav Rotem
Test    : Pass unit tests & LNT test suite

llvm-svn: 193150

Differential Revision: http://llvm-reviews.chandlerc.com/D1963

llvm-svn: 193149

- Replaced tabs with proper padding
- print() takes two arguments, which are the GCNO and GCDA filenames
- Files are listed at the top of output, appended by line 0
- Stripped strings of trailing \0s
- Removed last two lines of whitespace in output

Patch by Yuchen Wu!

llvm-svn: 193148

llvm-svn: 193133

llvm-svn: 193117

llvm-svn: 193113

llvm-svn: 193112

llvm-svn: 193097

llvm-svn: 193094

This allows various variables to be more self-documenting and easier to
debug by being of specific types without overlapping enum values.

Precommit review by Eric Christopher.

llvm-svn: 193091

When a linkonce_odr value that is on the dso list is not unnamed_addr
we can still look to see if anything is actually using its address. If
not, it is safe to hide it.

This patch implements that by moving GlobalStatus to Transforms/Utils
and using it in Internalize.

llvm-svn: 193090

The second parameter of the SLD intrinsic is the number of columns (GPR) to 
slide left the source array.

llvm-svn: 193076

llvm-svn: 193004

This is another (final?) stab at making us able to parse our own asm output
on Windows.

Symbols on Windows often contain @'s and ?'s in their names. Our asm parser
didn't like this. ?'s were not allowed, and @'s were intepreted as trying to
reference PLT/GOT/etc.

We can't just add quotes around the bad names, since e.g. for MinGW, we use gas
to assemble, and it doesn't like quotes in some places (notably in .def
directives).

This commit makes us allow ?'s in symbol names, and @'s in symbol names for MS
assembly.

Differential Revision: http://llvm-reviews.chandlerc.com/D1978

llvm-svn: 193000

There are targets that support i128 sized scalars but cannot emit
instructions that modify them directly.  The proper thing to do is to
emit a libcall.

This fixes PR17481.

llvm-svn: 192957

llvm-svn: 192954

llvm-svn: 192952

All of the Core API functions have versions which accept explicit context, in
addition to ones which work on global context. This commit adds functions
which accept explicit context to the Target API for consistency.

Patch by Peter Zotov

Differential Revision: http://llvm-reviews.chandlerc.com/D1912

llvm-svn: 192913

class.  The instruction class includes the signed saturating doubling
multiply-add long, signed saturating doubling multiply-subtract long, and
the signed saturating doubling multiply long instructions.

llvm-svn: 192908

llvm-svn: 192895