Add VMLA (floating point) 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 623 matching lines @@
 }
 
 template <> void InstARM32Veor::emitIAS(const Cfg *Func) const {
   auto *Asm = Func->getAssembler<ARM32::AssemblerARM32>();
   const Variable *Dest = getDest();
   assert(Dest->getType() == IceType_f64);
   Asm->veord(Dest, getSrc(0), getSrc(1));
   assert(!Asm->needsTextFixup());
 }
 
+template <> void InstARM32Vmla::emitIAS(const Cfg *Func) const {
+  // Note: Dest == getSrc(0) for four address FP instructions.
+  assert(getSrcSize() == 3);
+  auto *Asm = Func->getAssembler<ARM32::AssemblerARM32>();
+  const Variable *Dest = getDest();
+  switch (Dest->getType()) {
+  default:
+    // TODO(kschimpf) Figure out how vector operations apply.
+    Asm->setNeedsTextFixup();
+    break;
+  case IceType_f32:
+    Asm->vmlas(getDest(), getSrc(1), getSrc(2), CondARM32::AL);

[John, 2016/01/26 19:13:15]

perhaps

assert(!Asm->needsTextFixup());

here (and below), and just emitUsingTextFixup() in de default:?

[Karl, 2016/01/26 20:38:39]

Done.

+    break;
+  case IceType_f64:
+    Asm->vmlad(getDest(), getSrc(1), getSrc(2), CondARM32::AL);
+    break;
+  }
+  if (Asm->needsTextFixup())
+    emitUsingTextFixup(Func);
+}
+
 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);
@@ skipping 1649 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