[turbofan] Properly emit vsqrtsd if AVX is enabled.

src/compiler/x64/code-generator-x64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1436 matching lines @@
       break;
     }
     case kSSEFloat64Neg: {
       // TODO(bmeurer): Use RIP relative 128-bit constants.
       __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg);
       __ psllq(kScratchDoubleReg, 63);
       __ xorpd(i.OutputDoubleRegister(), kScratchDoubleReg);
       break;
     }
     case kSSEFloat64Sqrt:
-      ASSEMBLE_SSE_UNOP(sqrtsd);
+      ASSEMBLE_SSE_UNOP(Sqrtsd);
       break;
     case kSSEFloat64Round: {
       CpuFeatureScope sse_scope(masm(), SSE4_1);
       RoundingMode const mode =
           static_cast<RoundingMode>(MiscField::decode(instr->opcode()));
       __ Roundsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), mode);
       break;
     }
     case kSSEFloat64ToFloat32:
       ASSEMBLE_SSE_UNOP(Cvtsd2ss);
@@ skipping 1249 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8