Add specialization of FoldingSetTrait for std::pair.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210990 91177308-0d34-0410-b5e6-96231b3b80d8
PR20038: DebugInfo missing DIEs for some concrete variables.

I haven't nailed this down entirely, but this is about as small of a
test case as I can seem to construct and adequately demonstrates the
crasher. I'll continue investigating the root cause/fix(es).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210993 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210994 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Report that integer division is expensive.

Divides by weird constants now emit much better code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210995 91177308-0d34-0410-b5e6-96231b3b80d8
Temporarily revert r210953 in an attempt to bring the ARM buildbots
back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210996 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Move division custom lowering out of AMDILISelLowering

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210997 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Move / cleanup more leftover AMDIL stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210998 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Fix assert on vector sdiv

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211000 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Remove a few more things from AMDILISelLowering

Try to keep all the setOperationActions for integer ops
together.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211001 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add a rotr testcase I forgot to add

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211002 91177308-0d34-0410-b5e6-96231b3b80d8
Fix copy paste error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211003 91177308-0d34-0410-b5e6-96231b3b80d8
Canonicalize addrspacecast ConstExpr between different pointer types

As a follow-up to r210375 which canonicalizes addrspacecast
instructions, this patch canonicalizes addrspacecast constant
expressions.

Given clang uses ConstantExpr::getAddrSpaceCast to emit addrspacecast
cosntant expressions, this patch is also a step towards having the
frontend emit canonicalized addrspacecasts.

Piggyback a minor refactor in InstCombineCasts.cpp

Update three affected tests in addrspacecast-alias.ll,
access-non-generic.ll and constant-fold-gep.ll and added one new test in
constant-fold-address-space-pointer.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211004 91177308-0d34-0410-b5e6-96231b3b80d8
ARMEB: Fix trunc store for vector types

Reviewed at http://reviews.llvm.org/D4135



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211010 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][mips64r6] [ls][wd]c2 were re-encoded with 11-bit signed immediates rather than 16-bit in MIPS32r6/MIPS64r6

Summary:
The error message for the invalid.s cases isn't very helpful. It happens because
there is an instruction with a wider immediate that would have matched if the
NotMips32r6 predicate were true. I have some WIP to improve the message but it
affects most error messages for removed/re-encoded instructions on
MIPS32r6/MIPS64r6 and should therefore be a separate commit.

Depens on D4115

Reviewers: zoran.jovanovic, jkolek, vmedic

Reviewed By: vmedic

Differential Revision: http://reviews.llvm.org/D4117

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211012 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Merge most of the big/little endian checks in atomic.ll

Summary:
There is very little difference between the big and little endian cases in
test/CodeGen/Mips/atomic.ll. Merge them together using multiple
FileCheck prefixes.

Depends on D4117

Reviewers: jkolek, zoran.jovanovic, vmedic

Reviewed By: vmedic

Differential Revision: http://reviews.llvm.org/D4118

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211013 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Fix a fencepost error in lowering for llvm.aarch64.neon.uqshl.

Patch by Jiangning Liu!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211014 91177308-0d34-0410-b5e6-96231b3b80d8
Support/ConvertUTF: implement U+FFFD insertion according to the recommendation
given in the Unicode spec

That is, replace every maximal subpart of an ill-formed subsequence with one
U+FFFD.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211015 91177308-0d34-0410-b5e6-96231b3b80d8
Support/ConvertUTF: restore compatibility with MSVC, which only implements C89


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211016 91177308-0d34-0410-b5e6-96231b3b80d8