[Turbofan] Support 128 bit moves/swaps for x64.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2139513002
Cr-Commit-Position: refs/heads/master@{#37654}

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

@@ -2358,18 +2358,34 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
     } else {
       DCHECK(destination->IsFPStackSlot());
       Operand dst = g.ToOperand(destination);
-      __ Movsd(dst, src);
+      MachineRepresentation rep =
+          LocationOperand::cast(source)->representation();
+      if (rep != MachineRepresentation::kSimd128) {
+        __ Movsd(dst, src);
+      } else {
+        __ Movups(dst, src);
+      }
     }
   } else if (source->IsFPStackSlot()) {
     DCHECK(destination->IsFPRegister() || destination->IsFPStackSlot());
     Operand src = g.ToOperand(source);
+    MachineRepresentation rep = LocationOperand::cast(source)->representation();
     if (destination->IsFPRegister()) {
       XMMRegister dst = g.ToDoubleRegister(destination);
-      __ Movsd(dst, src);
+      if (rep != MachineRepresentation::kSimd128) {
+        __ Movsd(dst, src);
+      } else {
+        __ Movups(dst, src);
+      }
     } else {
       Operand dst = g.ToOperand(destination);
-      __ Movsd(kScratchDoubleReg, src);
-      __ Movsd(dst, kScratchDoubleReg);
+      if (rep != MachineRepresentation::kSimd128) {
+        __ Movsd(kScratchDoubleReg, src);
+        __ Movsd(dst, kScratchDoubleReg);
+      } else {
+        __ Movups(kScratchDoubleReg, src);
+        __ Movups(dst, kScratchDoubleReg);
+      }
     }
   } else {
     UNREACHABLE();
@@ -2401,31 +2417,57 @@ void CodeGenerator::AssembleSwap(InstructionOperand* source,
   } else if ((source->IsStackSlot() && destination->IsStackSlot()) ||
              (source->IsFPStackSlot() && destination->IsFPStackSlot())) {
     // Memory-memory.
-    Register tmp = kScratchRegister;
     Operand src = g.ToOperand(source);
     Operand dst = g.ToOperand(destination);
-    __ movq(tmp, dst);
-    __ pushq(src);
-    frame_access_state()->IncreaseSPDelta(1);
-    src = g.ToOperand(source);
-    __ movq(src, tmp);
-    frame_access_state()->IncreaseSPDelta(-1);
-    dst = g.ToOperand(destination);
-    __ popq(dst);
+    MachineRepresentation rep = LocationOperand::cast(source)->representation();
+    if (rep != MachineRepresentation::kSimd128) {
+      Register tmp = kScratchRegister;
+      __ movq(tmp, dst);
+      __ pushq(src);
+      frame_access_state()->IncreaseSPDelta(1);
+      src = g.ToOperand(source);
+      __ movq(src, tmp);
+      frame_access_state()->IncreaseSPDelta(-1);
+      dst = g.ToOperand(destination);
+      __ popq(dst);
+    } else {
+      // Use the XOR trick to swap without a temporary.
+      __ Movups(kScratchDoubleReg, src);
+      __ Xorps(kScratchDoubleReg, dst);  // scratch contains src ^ dst.
+      __ Movups(src, kScratchDoubleReg);
+      __ Xorps(kScratchDoubleReg, dst);  // scratch contains src.
+      __ Movups(dst, kScratchDoubleReg);
+      __ Xorps(kScratchDoubleReg, src);  // scratch contains dst.
+      __ Movups(src, kScratchDoubleReg);
+    }
   } else if (source->IsFPRegister() && destination->IsFPRegister()) {
     // XMM register-register swap.
     XMMRegister src = g.ToDoubleRegister(source);
     XMMRegister dst = g.ToDoubleRegister(destination);
-    __ Movapd(kScratchDoubleReg, src);
-    __ Movapd(src, dst);
-    __ Movapd(dst, kScratchDoubleReg);
+    MachineRepresentation rep = LocationOperand::cast(source)->representation();
+    if (rep != MachineRepresentation::kSimd128) {
+      __ Movapd(kScratchDoubleReg, src);
+      __ Movapd(src, dst);
+      __ Movapd(dst, kScratchDoubleReg);
+    } else {
+      __ Movups(kScratchDoubleReg, src);
+      __ Movups(src, dst);
+      __ Movups(dst, kScratchDoubleReg);
+    }
   } else if (source->IsFPRegister() && destination->IsFPStackSlot()) {
     // XMM register-memory swap.
     XMMRegister src = g.ToDoubleRegister(source);
     Operand dst = g.ToOperand(destination);
-    __ Movsd(kScratchDoubleReg, src);
-    __ Movsd(src, dst);
-    __ Movsd(dst, kScratchDoubleReg);
+    MachineRepresentation rep = LocationOperand::cast(source)->representation();
+    if (rep != MachineRepresentation::kSimd128) {
+      __ Movsd(kScratchDoubleReg, src);
+      __ Movsd(src, dst);
+      __ Movsd(dst, kScratchDoubleReg);
+    } else {
+      __ Movups(kScratchDoubleReg, src);
+      __ Movups(src, dst);
+      __ Movups(dst, kScratchDoubleReg);
+    }
   } else {
     // No other combinations are possible.
     UNREACHABLE();

src/x64/assembler-x64.cc

@@ -3898,7 +3898,6 @@ void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1,
   emit_sse_operand(dst, src2);
 }
 
-
 void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1,
                     const Operand& src2) {
   DCHECK(IsEnabled(AVX));
@@ -3908,6 +3907,14 @@ void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1,
   emit_sse_operand(dst, src2);
 }
 
+void Assembler::vps(byte op, const Operand& dst, XMMRegister src1,
+                    XMMRegister src2) {
+  DCHECK(IsEnabled(AVX));
+  EnsureSpace ensure_space(this);
+  emit_vex_prefix(src2, src1, dst, kL128, kNone, k0F, kWIG);
+  emit(op);
+  emit_sse_operand(src2, dst);
+}
 
 void Assembler::vpd(byte op, XMMRegister dst, XMMRegister src1,
                     XMMRegister src2) {

src/x64/assembler-x64.h

@@ -1531,6 +1531,13 @@ class Assembler : public AssemblerBase {
   void vss(byte op, XMMRegister dst, XMMRegister src1, const Operand& src2);
 
   void vmovaps(XMMRegister dst, XMMRegister src) { vps(0x28, dst, xmm0, src); }
+  void vmovups(XMMRegister dst, XMMRegister src) { vps(0x10, dst, xmm0, src); }
+  void vmovups(XMMRegister dst, const Operand& src) {
+    vps(0x11, dst, xmm0, src);
+  }
+  void vmovups(const Operand& dst, XMMRegister src) {
+    vps(0x11, dst, xmm0, src);
+  }
   void vmovapd(XMMRegister dst, XMMRegister src) { vpd(0x28, dst, xmm0, src); }
   void vmovmskpd(Register dst, XMMRegister src) {
     XMMRegister idst = {dst.code()};
@@ -1539,6 +1546,7 @@ class Assembler : public AssemblerBase {
 
   void vps(byte op, XMMRegister dst, XMMRegister src1, XMMRegister src2);
   void vps(byte op, XMMRegister dst, XMMRegister src1, const Operand& src2);
+  void vps(byte op, const Operand& dst, XMMRegister src1, XMMRegister src2);
   void vpd(byte op, XMMRegister dst, XMMRegister src1, XMMRegister src2);
   void vpd(byte op, XMMRegister dst, XMMRegister src1, const Operand& src2);
 

src/x64/disasm-x64.cc

@@ -1227,6 +1227,15 @@ int DisassemblerX64::AVXInstruction(byte* data) {
     int mod, regop, rm, vvvv = vex_vreg();
     get_modrm(*current, &mod, &regop, &rm);
     switch (opcode) {
+      case 0x10:
+        AppendToBuffer("vmovups %s,", NameOfXMMRegister(regop));
+        current += PrintRightXMMOperand(current);
+        break;
+      case 0x11:
+        AppendToBuffer("vmovups ");
+        current += PrintRightXMMOperand(current);
+        AppendToBuffer(",%s", NameOfXMMRegister(regop));
+        break;
       case 0x28:
         AppendToBuffer("vmovaps %s,", NameOfXMMRegister(regop));
         current += PrintRightXMMOperand(current);

src/x64/macro-assembler-x64.cc

@@ -2718,6 +2718,32 @@ void MacroAssembler::Movaps(XMMRegister dst, XMMRegister src) {
   }
 }
 
+void MacroAssembler::Movups(XMMRegister dst, XMMRegister src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vmovups(dst, src);
+  } else {
+    movups(dst, src);
+  }
+}
+
+void MacroAssembler::Movups(XMMRegister dst, const Operand& src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vmovups(dst, src);
+  } else {
+    movups(dst, src);
+  }
+}
+
+void MacroAssembler::Movups(const Operand& dst, XMMRegister src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vmovups(dst, src);
+  } else {
+    movups(dst, src);
+  }
+}
 
 void MacroAssembler::Movapd(XMMRegister dst, XMMRegister src) {
   if (CpuFeatures::IsSupported(AVX)) {
@@ -2848,6 +2874,23 @@ void MacroAssembler::Movmskpd(Register dst, XMMRegister src) {
   }
 }
 
+void MacroAssembler::Xorps(XMMRegister dst, XMMRegister src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vxorps(dst, kScratchDoubleReg, src);
+  } else {
+    xorps(dst, src);
+  }
+}
+
+void MacroAssembler::Xorps(XMMRegister dst, const Operand& src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vxorps(dst, kScratchDoubleReg, src);
+  } else {
+    xorps(dst, src);
+  }
+}
 
 void MacroAssembler::Roundss(XMMRegister dst, XMMRegister src,
                              RoundingMode mode) {

src/x64/macro-assembler-x64.h

@@ -983,9 +983,15 @@ class MacroAssembler: public Assembler {
   void Movq(Register dst, XMMRegister src);
 
   void Movaps(XMMRegister dst, XMMRegister src);
+  void Movups(XMMRegister dst, XMMRegister src);
+  void Movups(XMMRegister dst, const Operand& src);
+  void Movups(const Operand& dst, XMMRegister src);
   void Movapd(XMMRegister dst, XMMRegister src);
   void Movmskpd(Register dst, XMMRegister src);
 
+  void Xorps(XMMRegister dst, XMMRegister src);
+  void Xorps(XMMRegister dst, const Operand& src);
+
   void Roundss(XMMRegister dst, XMMRegister src, RoundingMode mode);
   void Roundsd(XMMRegister dst, XMMRegister src, RoundingMode mode);
   void Sqrtsd(XMMRegister dst, XMMRegister src);

test/cctest/test-disasm-x64.cc

@@ -599,6 +599,10 @@ TEST(DisasmX64) {
       __ vmovapd(xmm7, xmm0);
       __ vmovmskpd(r9, xmm4);
 
+      __ vmovups(xmm5, xmm1);
+      __ vmovups(xmm5, Operand(rdx, 4));
+      __ vmovups(Operand(rdx, 4), xmm5);
+
       __ vandps(xmm0, xmm9, xmm2);
       __ vandps(xmm9, xmm1, Operand(rbx, rcx, times_4, 10000));
       __ vxorps(xmm0, xmm1, xmm9);