This reverts accidental commit r195794.

llvm-svn: 195795

llvm-svn: 195794

class name. I think we're no longer using any compilers with
sufficiently broken ICN for this use case, but I'll watch the bots and
introduce a typedef without a reserved name if any yell at me.

llvm-svn: 195793

llvm-svn: 195792

PR1860 - We can't save a list of ExtractElement instructions to CSE because some of these instructions
may be removed and optimized in future iterations. Instead we save a list of basic blocks that we need to CSE.

llvm-svn: 195791

llvm-svn: 195790

instructions.

llvm-svn: 195789

instructions.

llvm-svn: 195788

In signed arithmetic we could end up with an i64 trip count for an i32 phi.
Because it is signed arithmetic we know that this is only defined if the i32
does not wrap. It is therefore safe to truncate the i64 trip count to a i32
value.

Fixes PR18049.

llvm-svn: 195787

There were two identical files named 'min_allocator.h'. Move one of them to /support and delete the other. Then adjust all the tests that used them to include the moved one. No functionality change.

llvm-svn: 195785

inconsistencies that I'll just need to fix myself as I edit things.

llvm-svn: 195784

doxygen comments, make existing comments doxygen comments etc.

Also, switch commented-out debug helpers to #if-0-ed out debug helpers.

No functionality changed.

llvm-svn: 195783

llvm-svn: 195782

The determination of when we are doing constant pools was being made too
early in the asm printer.

llvm-svn: 195781

I'm adding new functionality in the sample profiler. This will
require more data to be kept around for each function, so I moved
the structure SampleProfile that we keep for each function into
a separate class.

There are no functional changes in this patch. It simply provides
a new home where to place all the new data that I need to propagate
weights through edges.

There are some other name and minor edits throughout.

llvm-svn: 195780

- Fix bug in (vsext (vzext x)) -> (vsext x) in SIGN_EXTEND_IN_REG
  lowering where we need to check whether x is a vector type (in-reg
  type) of i8, i16 or i32; otherwise, that optimization is not valid.

llvm-svn: 195779

This patch adds the counter-part to DominatorTree::getDescendants.
It also fixes a couple of comments I noticed out of date in the
DominatorTree class.

llvm-svn: 195778

llvm-svn: 195777

Since type units aren't in the CUMap, use the DwarfUnits list to iterate
over units for tasks such as accelerator table building.

llvm-svn: 195776

llvm-svn: 195775

The current mapping for /section one character options is really bogus.
Map to the correct flags.

llvm-svn: 195774

we generate PHI nodes with multiple entries from the same basic block but
with different values. Enabling CSE on ExtractElement instructions make sure
that all of the RAUWed instructions are the same.

llvm-svn: 195773

Code scanner ran by Sylvestre Ledru got a no_return bug
in DebugInfo.cpp. Adding the return statements that
should be there.

llvm-svn: 195772

1) Don't start external symbolizer subprocess until we actually try to
   symbolize anything.
2) Allow to turn off external symbolizer by providing empty ?SAN_SYMBOLIZER_PATH
   environment variable.

llvm-svn: 195771

llvm-svn: 195770

Short description.

This issue is about case of treating pointers as integers.
We treat pointers as different if they references different address space.
At the same time, we treat pointers equal to integers (with machine address
width). It was a point of false-positive. Consider next case on 32bit machine:

void foo0(i32 addrespace(1)* %p)
void foo1(i32 addrespace(2)* %p)
void foo2(i32 %p)

foo0 != foo1, while
foo1 == foo2 and foo0 == foo2.

As you can see it breaks transitivity. That means that result depends on order
of how functions are presented in module. Next order causes merging of foo0
and foo1: foo2, foo0, foo1
First foo0 will be merged with foo2, foo0 will be erased. Second foo1 will be
merged with foo2.
Depending on order, things could be merged we don't expect to.

The fix:
Forbid to treat any pointer as integer, except for those, who belong to address space 0.

llvm-svn: 195769

On a Release build this takes the testcase in pr18055 from 0m3.892s to 0m1.452s.

llvm-svn: 195768

llvm-svn: 195767

Added _WIN32 guards to new platform features. Using correct SetErrorStringWithFormat within Host when LLDB_DISABLE_POSIX is defined. Also fixed an if defined block.

llvm-svn: 195766

llvm-svn: 195763

Changed non-printable characters in the test to the escaped form. Apparently, not all tools display non-printable characters ;)

llvm-svn: 195761

llvm-svn: 195760

llvm-svn: 195759

review!

llvm-svn: 195757

llvm-svn: 195756

llvm-svn: 195755

llvm-svn: 195754

Sourcery MIPS toolchain.

llvm-svn: 195753

llvm-svn: 195752

toolchain first and check the path existence. If the path does not
exist build and check a path suffix for Code Sourcery toolchain.

llvm-svn: 195751