Add floor, ceil, round (truncate) instructions for ia32, x64 (if SSE4.1) and

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/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 389 matching lines @@
       __ addq(rsp, Immediate(kDoubleSize));
       break;
     }
     case kSSEFloat64Sqrt:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       } else {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputOperand(0));
       }
       break;
+    case kSSEFloat64Floor: {
+      CpuFeatureScope sse_scope(masm(), SSE4_1);
+      __ roundsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
+                 v8::internal::Assembler::kRoundDown);
+      break;
+    }
+    case kSSEFloat64Ceil: {
+      CpuFeatureScope sse_scope(masm(), SSE4_1);
+      __ roundsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
+                 v8::internal::Assembler::kRoundUp);
+      break;
+    }
+    case kSSEFloat64RoundTruncate: {
+      CpuFeatureScope sse_scope(masm(), SSE4_1);
+      __ roundsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
+                 v8::internal::Assembler::kRoundToZero);
+      break;
+    }
     case kSSECvtss2sd:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ cvtss2sd(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       } else {
         __ cvtss2sd(i.OutputDoubleRegister(), i.InputOperand(0));
       }
       break;
     case kSSECvtsd2ss:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ cvtsd2ss(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
@@ skipping 582 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace compiler
 }  // namespace v8