Handle relocations that don't point to symbols.

In ELF (as in MachO), not all relocations point to symbols. Represent this
properly by using a symbol_iterator instead of a SymbolRef. Update llvm-readobj
ELF's dumper to handle relocatios without symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183284 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "R600: Add a pass that merge Vector Register"

This reverts commit r183279. CodeGen/R600/texture-input-merge.ll was failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183286 91177308-0d34-0410-b5e6-96231b3b80d8
Move BinaryRef to a new include/llvm/Object/YAML.h file.

It will be used for ELF dumping too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183287 91177308-0d34-0410-b5e6-96231b3b80d8
Handle (at least don't crash on) relocations with no symbols.

Should fix the MCJIT tests on PPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183288 91177308-0d34-0410-b5e6-96231b3b80d8
Don't print default values for NumberOfAuxSymbols and AuxiliaryData.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183293 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Make sure to schedule AR register uses and defs in the same clause

Reviewed-by: vljn at ovi.com

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183294 91177308-0d34-0410-b5e6-96231b3b80d8
PR15662: Optimized debug info produces out of order function parameters

When a function is inlined we lazily construct the variables
representing the function's parameters. After that, we add any remaining
unused parameters.

If the function doesn't use all the parameters, or uses them out of
order, then the DWARF would produce them in that order, producing a
parameter order that doesn't match the source.

This fix causes us to always keep the arg variables at the start of the
variable list & in the original order from the source.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183297 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a tblgen subtargetemitter bug, for future Swift support.

This fixes some of the ridiculously complex code for optimizing the
machine model tables that are shared among all processors of a given
target. A9 and Swift both use the "special" feature that maps old
itinerary classes to new machine model defs. They map different
overlapping subsets of instructions, which wasn't handled correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183302 91177308-0d34-0410-b5e6-96231b3b80d8
The GNU/HURD is also using the libc. Therefor, endian.h should be included, not machine/endian.h. See full build log https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-3.3&arch=hurd-i386&ver=1%3A3.3~%2Brc3-1~exp1&stamp=1370358869

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183303 91177308-0d34-0410-b5e6-96231b3b80d8
This is a simple patch that changes RRX and RRXS to accept all registers as operands.
According to the ARM reference manual, RRX(S) have defined encodings for lr, pc and sp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183307 91177308-0d34-0410-b5e6-96231b3b80d8
SubtargetEmitter fix

Don't output data if we are supposed to ignore the record.

Reapply of 183255, I don't think this was causing the tablegen segfault on linux
testers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183311 91177308-0d34-0410-b5e6-96231b3b80d8
ARMInstrInfo: Improve isSwiftFastImmShift

An instruction with less than 3 inputs is trivially a fast immediate shift.

Reapply of 183256, should not have caused the tablegen segfault on linux either.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183314 91177308-0d34-0410-b5e6-96231b3b80d8
ARM sched model: Add divsion, loads, branches, vfp cvt

Add some generic SchedWrites and assign resources for Swift and Cortex A9.

Reapply of r183257. (Removed empty InstRW for division on swift)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183319 91177308-0d34-0410-b5e6-96231b3b80d8
ARM sched model: Add more ALU and CMP instructions

Reapply of 183258.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183321 91177308-0d34-0410-b5e6-96231b3b80d8
Represent symbols with a SymbolIndex,SectionIndex pair.

With this patch we use the SectionIndex directly, instead of counting the
number of symbol tables. This saves a DenseMap lookup every time we want to
find which symbol a relocation refers to.

Also simplify based on the fact that there is at most one SHT_SYMTAB and one
SHT_DYNSYM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183326 91177308-0d34-0410-b5e6-96231b3b80d8
[PATCH] Fix VGATHER* operand constraints

Add earlyclobber constaints to prevent input register being allocated as
the output register because, according to Intel spec [1], "If any pair
of the index, mask, or destination registers are the same, this
instruction results a UD fault."

---
[1] http://software.intel.com/sites/default/files/319433-014.pdf



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183327 91177308-0d34-0410-b5e6-96231b3b80d8
Use IRBuilder instead of ConstantInt methods. It simplifies code a little bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183328 91177308-0d34-0410-b5e6-96231b3b80d8
yaml2obj: add -format=<fmt> to choose input YAML interpretation

See the comment in yaml2obj.cpp for why this is currently needed.
Eventually we can get rid of this, but for now it is needed in order to
make forward progress with adding ELF support, and should be
straightforward to remove later.

Also, preserve the default of COFF, to avoid breaking existing tests.
This policy can easily be changed later though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183332 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] brcond + setgt/setugt instruction selection patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183334 91177308-0d34-0410-b5e6-96231b3b80d8
yaml2obj: split out COFF logic into separate file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183335 91177308-0d34-0410-b5e6-96231b3b80d8