Add VSUB{S,D} instructions to the integrated ARM assembler.

src/IceInstARM32.cpp

 //===- subzero/src/IceInstARM32.cpp - ARM32 instruction implementation ----===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 594 matching lines @@
     // TODO(kschimpf) Figure if more cases are needed.
     Asm->setNeedsTextFixup();
     break;
   case IceType_f32:
     Asm->vadds(getDest(), getSrc(0), getSrc(1), CondARM32::AL);
     break;
   case IceType_f64:
     Asm->vaddd(getDest(), getSrc(0), getSrc(1), CondARM32::AL);
     break;
   }
-  if (Asm->needsTextFixup())
-    emitUsingTextFixup(Func);
+  assert(!Asm->needsTextFixup());
+}
+
+template <> void InstARM32Vsub::emitIAS(const Cfg *Func) const {
+  auto *Asm = Func->getAssembler<ARM32::AssemblerARM32>();
+  const Variable *Dest = getDest();
+  switch (Dest->getType()) {
+  default:
+    // TODO(kschimpf) Figure if more cases are needed.
+    Asm->setNeedsTextFixup();
+    break;
+  case IceType_f32:
+    Asm->vsubs(getDest(), getSrc(0), getSrc(1), CondARM32::AL);
+    break;
+  case IceType_f64:
+    Asm->vsubd(getDest(), getSrc(0), getSrc(1), CondARM32::AL);
+    break;
+  }
+  assert(!Asm->needsTextFixup());
 }
 
 InstARM32Call::InstARM32Call(Cfg *Func, Variable *Dest, Operand *CallTarget)
     : InstARM32(Func, InstARM32::Call, 1, Dest) {
   HasSideEffects = true;
   addSource(CallTarget);
 }
 
 InstARM32Label::InstARM32Label(Cfg *Func, TargetARM32 *Target)
     : InstARM32(Func, InstARM32::Label, 0, nullptr),
@@ skipping 1544 matching lines @@
 
 template class InstARM32FourAddrGPR<InstARM32::Mla>;
 template class InstARM32FourAddrGPR<InstARM32::Mls>;
 
 template class InstARM32CmpLike<InstARM32::Cmn>;
 template class InstARM32CmpLike<InstARM32::Cmp>;
 template class InstARM32CmpLike<InstARM32::Tst>;
 
 } // end of namespace ARM32
 } // end of namespace Ice