[ARM] v8.3-a complex number support

New instructions are added to AArch32 and AArch64 to aid
floating-point multiplication and addition of complex numbers, where
the complex numbers are packed in a vector register as a pair of
elements. The Imaginary part of the number is placed in the more
significant element, and the Real part of the number is placed in the
less significant element.

This patch adds assembler for the ARM target.

Differential Revision: https://reviews.llvm.org/D36789

llvm-svn: 314511

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.h b/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
index 86873a3a6cc..7dc311229cc 100644
--- a/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
+++ b/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
@@ -231,6 +231,9 @@ public:
                                   const MCSubtargetInfo &STI, raw_ostream &O);
   void printVectorListFourSpaced(const MCInst *MI, unsigned OpNum,
                                  const MCSubtargetInfo &STI, raw_ostream &O);
+  template<int64_t Angle, int64_t Remainder>
+  void printComplexRotationOp(const MCInst *MI, unsigned OpNum,
+                              const MCSubtargetInfo &STI, raw_ostream &O);
 };
 
 } // end namespace llvm