PowerPC: Fix encoding of stfsu and stfdu instructions

When testing the asm parser, I noticed wrong encodings for the
above instructions (wrong sub-opcodes).  Note that apparently
the compiler currently never generates pre-inc instructions
for floating point types for some reason ...

Tests will be added together with the asm parser.

llvm-svn: 180607

PowerPC: Fix encoding of rldimi and rldcl instructions

When testing the asm parser, I noticed wrong encodings for the
above instructions (wrong operand name in rldimi, wrong form
and sub-opcode for rldcl).

Tests will be added together with the asm parser.

llvm-svn: 180606

PowerPC: Support PC-relative fixup_ppc_brcond14.

When testing the asm parser, I ran into an error when using a conditional
branch to an external symbol (this doesn't occur in compiler-generated
code) due to missing support in PPCELFObjectWriter::getRelocTypeInner.

llvm-svn: 180605

llvm-svn: 180604

llvm-svn: 180603

llvm-svn: 180602

On a 32 bit build this moves LinkageSpecDecl from 52 to 48 bytes.

llvm-svn: 180601

llvm-svn: 180600

llvm-svn: 180599

llvm-svn: 180598

This already helps SSE2 x86 a lot because it lacks an efficient way to
represent a vector select. The long term goal is to enable the backend to match
a canonicalized pattern into a single instruction (e.g. vabs or pabs).

llvm-svn: 180597

llvm-svn: 180594

LoopVectorizer:  Calculate the number of pointers to disambiguate at runtime based on the numbers of reads and writes.

llvm-svn: 180593

Thanks Chandler!

llvm-svn: 180592

Original commit message:

Fix a case in linkage computation that should check for single line extern "C".

llvm-svn: 180591

Revert "[objc-arc] Added ImpreciseAutoreleaseSet to track autorelease calls that were once autoreleaseRV instructions."

This reverts commit r180222.

I think this might tie in with a different problem which will require a
different approach potentially. I am reverting this in the case I need to go
down that second path.

My apologies for the noise. = /.

llvm-svn: 180590

Updated GettingStarted.rst so that it references utils/git-svn for git-svnup instead of catting it into the documentation itself.

llvm-svn: 180589

llvm-svn: 180588

It makes more sense to have git-svnup here than catting said file in the
documentation (where we should rather point users to this directory).
I included git-svnrevert as an additional gift to the community. I will update
the documentation in a second commit later today.

git-svnrevert takes in a git hash for a commit, looks up the svn revision for
said commit and then creates the normal git revert commit message with the one
liner message, except instead of saying

  Revert "<<<INSERT ONELINER HERE>>>"

  This reverts commit <<<INSERT GITHASH HERE>>>

It says:

  Revert "<<<INSERT ONELINER HERE>>>"

  This reverts commit r<<<INSERT SVN REVISION HERE>>>

so git hashes will not escape into our svn logs (which just look unseemly).

llvm-svn: 180587

Thanks to Bill Wendling for the original testcase.

llvm-svn: 180586

llvm-svn: 180585

Mips have delayslots for certain instructions 
like jumps and branches. These are instructions 
that follow the branch or jump and are executed
before the jump or branch is completed.

Early Mips compilers could not cope with delayslots
and left them up to the assembler. The assembler would
fill the delayslots with the appropriate instruction,
usually just a nop to allow correct runtime behavior.

The default behavior for this is set with .set reorder.
To tell the assembler that you don't want it to mess with
the delayslot one used .set noreorder.

For backwards compatibility we need to support
.set reorder and have it be the default behavior in the 
assembler.

Our support for it is to insert a NOP directly after an
instruction with a delayslot when in .set reorder mode.

Contributer: Vladimir Medic
llvm-svn: 180584

llvm-svn: 180583

llvm-svn: 180582

Patch by Ashok Thirumurthi.

llvm-svn: 180581

patch -n r180198.
When reporting on missing property accessor implementation in
categories, do not report when they are declared in primary class,
class's protocol, or one of it super classes or in of the other
categories. // rdar://13713098

llvm-svn: 180580

llvm-svn: 180579

Pattern has source location by itself. After adding a trivial method to
retrieve it, it's unnecessary to pair a source location for CHECK-NOT patterns.
One thing revised after this is the diagnostic info is more accurate by
pointing to the start of the CHECK-NOT pattern instead of the end of the
CHECK-NOT pattern. E.g. diagnostic message previously looks like

    <stdin>:1:1: error: CHECK-NOT: string occurred!
    test
    ^
    test.txt:1:16: note: CHECK-NOT: pattern specified here
    CHECK-NOT: test
                   ^

is changed to

    <stdin>:1:1: error: CHECK-NOT: string occurred!
    test
    ^
    test.txt:1:12: note: CHECK-NOT: pattern specified here
    CHECK-NOT: test
               ^

llvm-svn: 180578

Expunge all remaining traces and use of live variable information.

llvm-svn: 180577

Reflect this in the cost model. I observed this in MiBench/consumer-lame.

radar://13354716

llvm-svn: 180576

llvm-svn: 180575

llvm-svn: 180574

latency for certain models of the Intel Atom family, by converting
instructions into their equivalent LEA instructions, when it is both
useful and possible to do so.

llvm-svn: 180573

- Adds unique enums for ymm registers to the ABI and the POSIX register context.
- Reworks the register context data structures to support a union of FXSAVE and XSAVE
--- Allows the same code base to deal with the FPU independent of the availability of AVX.
- Determine if AVX is supported by attempting to read XSAVE using ptrace.
--- Support an extended register set for avx registers if available.
- Provide a mechanism to assemble/parse register halves into a single ymm buffer for use with RegisterValue.
--- Reworked Read/WriteRegister routines to read/write/parse ymm registers.

Adds tests for ymm register write with read-back, and expressions involving ymm registers.
- Tests vary depending on the availability of an avx register set.

Thanks to Daniel and Matt for their reviews.

llvm-svn: 180572

When we find a friend declaration we have to skip transparent contexts for doing
lookups, but we should not skip them when inserting the new decl if the lookup
found nothing.

Fixes PR15841.

llvm-svn: 180571

llvm-svn: 180570

Summary:
This is modelled on the Mach-O linker options implementation and should
support a Clang implementation of #pragma comment(lib/linker).

Reviewers: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D724

llvm-svn: 180569

Patch by Kai Nacke. This matches the gnu as output.

llvm-svn: 180568

interpreter.  They are a legacy from when the IR
interpreter didn't work with materialized values
but rather got values directly from
ClangExpressionDeclMap.

Also updated the #includes for IRInterpreter
accordingly.

llvm-svn: 180565

llvm-svn: 180564