Patch by Stephen Checkoway.

llvm-svn: 192827

Aliases now have their own section where we document which linkages they can
have.

llvm-svn: 192825

This should fix the ATOM buildbot failing on break-avx-dep.ll.

llvm-svn: 192824

This patch fixes a small mistake in MCDataAtom::addData() where it doesn't ever
call remap():

-  if (Data.size() > Begin - End - 1)
+  if (Data.size() > End + 1 - Begin)
     remap(Begin, End + 1);

This is currently not visible because of another bug is the disassembler, so
the patch includes a unit test.

Patch by Stephen Checkoway.

llvm-svn: 192823

Like LLVMDumpModule but returns the string (that needs to be freed
with LLVMDisposeMessage) instead of printing it to stderr.

Differential Revision: http://llvm-reviews.chandlerc.com/D1941

llvm-svn: 192821

radar://15231682

Reapply r192799,
  http://lab.llvm.org:8011/builders/lldb-x86_64-debian-clang/builds/8226
showed that the bot is still broken even with this out.

llvm-svn: 192820

This speculatively reverts commit 192799. It might have broken a linux buildbot.

llvm-svn: 192816

We were calling llvm_unreachable() when failing to optimize the
branch into if case.  However, it is still possible for us
to structurize the CFG by duplicating blocks even if this optimization
fails.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 192813

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 192812

llvm-svn: 192810

Patch by Dmitry Stogov

llvm-svn: 192809

llvm-svn: 192806

llvm-svn: 192805

Before this patch we would assert when building llvm as multiple shared
libraries (cmake's BUILD_SHARED_LIBS). The problem was the line

if (T.AsmStreamerCtorFn == Target::createDefaultAsmStreamer)

which returns false because of -fvisibility-inlines-hidden. It is easy
to fix just this one case, but I decided to try to also make the
registration more strict. It looks like the old logic for ignoring
followup registration was just a temporary hack that outlived its
usefulness.

This patch converts the ifs to asserts, fixes the few cases that were
registering twice and makes sure all the asserts compare with null.

Thanks for Joerg for reporting the problem and reviewing the patch.

llvm-svn: 192803

value and unsigned saturating accumulate of signed value instructions.

llvm-svn: 192800

radar://15231682

llvm-svn: 192799

llvm-svn: 192796

This happens e.g. with <2 x i64> -1 on x86_32. It cannot be generated directly
because i64 is illegal. It would be nice if getNOT would handle this
transparently, but I don't see a way to generate a legal constant there right
now. Fixes PR17487.

llvm-svn: 192795

Summary:
Given a global array G[N], which is declared in this CU and has static initializer
avoid instrumenting accesses like G[i], where 'i' is a constant and 0<=i<N.
Also add a bit of stats.

This eliminates ~1% of instrumentations on SPEC2006
and also partially helps when asan is being run together with coverage.

Reviewers: samsonov

Reviewed By: samsonov

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1947

llvm-svn: 192794

The input to an RxSBG operation can be narrower as long as the upper bits
are don't care.  This fixes a FIXME added in r192783.

llvm-svn: 192790

Destroying the codegen also frees the path of the created object. Copy the
path to a std::string.

llvm-svn: 192787

We previously used the default expansion to SELECT_CC, which in turn would
expand to "LHI; BRC; LHI".  In most cases it's better to use an IPM-based
sequence instead.

llvm-svn: 192784

This is really an extension of the current (shl (shr ...)) -> shl optimization.
The main difference is that certain upper bits must also not be demanded.

The motivating examples are the first two in the testcase, which occur
in llvmpipe output.

llvm-svn: 192783

llvm-svn: 192781

This deletes the Module ivar instead of having the LTO code generater do it. It
also sets the pointer to 'NULL', so that if it's used again it will abort
quickly.

llvm-svn: 192778

GNU AS didn't like quotes in symbol names.

    Error: junk at end of line, first unrecognized character is `"'

        .def "@feat.00";
        "@feat.00" = 1

Reproduced on Cygwin's 2.23.52.20130309 and mingw32's 2.20.1.20100303.

llvm-svn: 192775

llvm-svn: 192773

Introduce subtype_reverse_iterator to maintain
the numbering assigned during the recursive type walk.

llvm-svn: 192770

The magic bytes should not include the trailing NUL byte.

llvm-svn: 192769

llvm-svn: 192767

llvm-svn: 192764

1) Make sure we emit static member variables by checking
at the end of createGlobalVariableDIE rather than piecemeal
in the function.
(As a note, createGlobalVariableDIE needs rewriting.)

2) Make sure we use the definition rather than declaration DIE
for two things: a) determining linkage for gnu pubnames, and b)
as the address of the DIE for global variables.
(As a note, createGlobalVariableDIE really needs rewriting.)

Adjust the testcase to make sure we're checking the correct DIEs.

llvm-svn: 192761

We had a MCAsmInfoCOFF, but no common class for all the ELF MCAsmInfos before.

llvm-svn: 192760

llvm-svn: 192759

Because of win32 mangling, we produce symbol and section names with
funny characters in them, most notably @ characters.

MC would choke on trying to parse its own assembly output. This patch addresses
that by:

- Making @ trigger quoting of symbol names
- Also quote section names in the same way
- Just parse section names like other identifiers (to allow for quotes)
- Don't assume @ signifies a symbol variant if it is in a string.

Differential Revision: http://llvm-reviews.chandlerc.com/D1945

llvm-svn: 192758

No functionality change, but exposes the API so that codegen can use it too.

Patch by Katya Romanova.

llvm-svn: 192757

llvm-svn: 192756

llvm-svn: 192755

llvm-svn: 192754

Patch by Yaron Keren

llvm-svn: 192753