Add VCMP{s,sz,d,dz} Instructions to ARM integrated 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 1905 matching lines @@
   Ostream &Str = Func->getContext()->getStrEmit();
   assert(getSrcSize() == 2);
   Str << "\t"
          "vcmp" << getPredicate() << getVecWidthString(getSrc(0)->getType())
       << "\t";
   getSrc(0)->emit(Func);
   Str << ", ";
   getSrc(1)->emit(Func);
 }
 
+void InstARM32Vcmp::emitIAS(const Cfg *Func) const {
+  assert(getSrcSize() == 2);
+  const Operand *Src0 = getSrc(0);
+  Type Ty = Src0->getType();

[Jim Stichnoth, 2016/01/09 01:34:28]

const Type

[Karl, 2016/01/11 16:42:20]

Done.

+  const Operand *Src1 = getSrc(1);
+  const CondARM32::Cond Cond = getPredicate();
+  auto *Asm = Func->getAssembler<ARM32::AssemblerARM32>();
+  if (llvm::isa<OperandARM32FlexFpZero>(Src1)) {
+    switch (Ty) {
+    case IceType_f32:
+      Asm->vcmpsz(Src0, Cond);
+      break;
+    case IceType_f64:
+      Asm->vcmpdz(Src0, Cond);
+      break;
+    default:
+      llvm::report_fatal_error("Vcvt on non floating value");
+    }
+  } else {
+    switch (Ty) {
+    case IceType_f32:
+      Asm->vcmps(Src0, Src1, Cond);
+      break;
+    case IceType_f64:
+      Asm->vcmpd(Src0, Src1, Cond);
+      break;
+    default:
+      llvm::report_fatal_error("Vcvt on non floating value");
+    }
+  }
+  assert(!Asm->needsTextFixup());
+}
+
 void InstARM32Vcmp::dump(const Cfg *Func) const {
   if (!BuildDefs::dump())
     return;
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "vcmp" << getPredicate() << getVecWidthString(getSrc(0)->getType());
   dumpSources(Func);
 }
 
 void InstARM32Vmrs::emit(const Cfg *Func) const {
   if (!BuildDefs::dump())
@@ skipping 306 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