R600/SI: Refactor VOP1 instruction defs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219253 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Refactor VOP2 instruction defs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219254 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Refactor VOPC instruction defs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219255 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Refactor VOP3 instruction defs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219256 91177308-0d34-0410-b5e6-96231b3b80d8
[X86] Fix a bug with fetch_add(INT32_MIN)

Summary:
Fix pr21099

The pseudocode of what we were doing (spread through two functions) was:
if (operand.doesNotFitIn32Bits())
  Opc.initializeWithFoo();
if (operand < 0)
  operand = -operand;
if (operand.doesFitIn8Bits())
  Opc.initializeWithBar();
else if (operand.doesFitIn32Bits())
  Opc.initializeWithBlah();
doStuff(Opc);

So for operand == INT32_MIN, Opc was never initialized because the operand changes
from fitting in 32 bits to not fitting, causing the various bugs/error messages
noted by pr21099.

This patch adds an extra test at the beginning for this case, and an
llvm_unreachable to have better error message if the operand ends up
not fitting in 32-bits at the end.

Test Plan: new test + make check

Reviewers: jfb

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5655

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219257 91177308-0d34-0410-b5e6-96231b3b80d8
[DebugInfo] Pass DWARFSection into DWARFUnitSection constructor (NFC).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219259 91177308-0d34-0410-b5e6-96231b3b80d8
[Support] Add MemoryBuffer::getFileSlice()

mach-o supports "fat" files which are a header/table-of-contents followed by a
concatenation of mach-o files built for different architectures. Currently, 
MemoryBuffer has no easy way to map a subrange (slice) of a file which lld
will need to select a mach-o slice of a fat file. The new function provides 
an easy way to map a slice of a file into a MemoryBuffer. Test case included.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219260 91177308-0d34-0410-b5e6-96231b3b80d8
[DebugInfo] Pass DWARFSection down to DWARFUnit constructor (NFC).

Keep the actual section contents and the relocation map together.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219261 91177308-0d34-0410-b5e6-96231b3b80d8
Have SelectionDAG's subtarget TargetSelectionDAGInfo be set
during init rather than construction time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219262 91177308-0d34-0410-b5e6-96231b3b80d8