AArch64/ARM64: produce correct relocation for conditional branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206391 91177308-0d34-0410-b5e6-96231b3b80d8
AArch64/ARM64: port some NEON tests to ARM64

These ones used completely different sets of intrinsics, so the only way to do
it is create a separate ARM64 copy and change them all.

Other than that, CodeGen was straightforward, no deficiencies detected here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206392 91177308-0d34-0410-b5e6-96231b3b80d8
ARM64: silence sign-comparison warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206393 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Add initial support for NaN2008 in the back-end.

This is so that EF_MIPS_NAN2008 is set if we are using IEEE 754-2008
NaN encoding (-mnan=2008). This patch also adds support for parsing
'.nan legacy' and '.nan 2008' assembly directives. The handling of
these directives should match GAS' behaviour i.e., the last directive
in use sets the ELF header bit (EF_MIPS_NAN2008).

Differential Revision: http://reviews.llvm.org/D3346


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206396 91177308-0d34-0410-b5e6-96231b3b80d8