[AArch64 NEON]Fix a assertion failure when disassemble SHLL instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195936 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing pattern for supporting intrinsic function vbsl_f64 with
argument double floating point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195938 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing test case for bsl_f64 support of AArch64 NEON.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195939 91177308-0d34-0410-b5e6-96231b3b80d8
AArch64: The pattern match should check the range of the immediate value.
Or we can generate some illegal instructions.
E.g. shrn2 v0.4s, v1.2d, #35. The legal range should be in [1, 16].


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195941 91177308-0d34-0410-b5e6-96231b3b80d8
Refactor a lot of patchpoint/stackmap related code to simplify and make it
target independent.

Most of the x86 specific stackmap/patchpoint handling was necessitated by the
use of the native address-mode format for frame index operands. PEI has now
been modified to treat stackmap/patchpoint similarly to DEBUG_INFO, allowing
us to use a simple, platform independent register/offset pair for frame
indexes on stackmap/patchpoints.

Notes:
  - Folding is now platform independent and automatically supported.
  - Emiting patchpoints with direct memory references now just involves calling
    the TargetLoweringBase::emitPatchPoint utility method from the target's
    XXXTargetLowering::EmitInstrWithCustomInserter method. (See
    X86TargetLowering for an example).
  - No more ugly platform-specific operand parsers.

This patch shouldn't change the generated output for X86. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195944 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused variable from r195944.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195945 91177308-0d34-0410-b5e6-96231b3b80d8