diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc
index 5a466e1..6eab302 100644
--- a/compiler/utils/x86/assembler_x86.cc
+++ b/compiler/utils/x86/assembler_x86.cc
@@ -642,39 +642,6 @@
 }
 
 
-void X86Assembler::psrldq(XmmRegister reg, const Immediate& shift_count) {
-  DCHECK(shift_count.is_uint8());
-
-  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  EmitUint8(0x66);
-  EmitUint8(0x0F);
-  EmitUint8(0x73);
-  EmitXmmRegisterOperand(3, reg);
-  EmitUint8(shift_count.value());
-}
-
-
-void X86Assembler::psrlq(XmmRegister reg, const Immediate& shift_count) {
-  DCHECK(shift_count.is_uint8());
-
-  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  EmitUint8(0x66);
-  EmitUint8(0x0F);
-  EmitUint8(0x73);
-  EmitXmmRegisterOperand(2, reg);
-  EmitUint8(shift_count.value());
-}
-
-
-void X86Assembler::punpckldq(XmmRegister dst, XmmRegister src) {
-  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  EmitUint8(0x66);
-  EmitUint8(0x0F);
-  EmitUint8(0x62);
-  EmitXmmRegisterOperand(dst, src);
-}
-
-
 void X86Assembler::addsd(XmmRegister dst, XmmRegister src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF2);
@@ -828,6 +795,51 @@
 }
 
 
+void X86Assembler::paddb(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xFC);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::psubb(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xF8);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::paddw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xFD);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::psubw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xF9);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::pmullw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xD5);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
 void X86Assembler::paddd(XmmRegister dst, XmmRegister src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x66);
@@ -856,6 +868,24 @@
 }
 
 
+void X86Assembler::paddq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xD4);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::psubq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0xFB);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
 void X86Assembler::cvtsi2ss(XmmRegister dst, Register src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF3);
@@ -1186,6 +1216,141 @@
 }
 
 
+void X86Assembler::punpcklbw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x60);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::punpcklwd(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x61);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::punpckldq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x62);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::punpcklqdq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x6C);
+  EmitXmmRegisterOperand(dst, src);
+}
+
+
+void X86Assembler::psllw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::pslld(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psllq(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x73);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psraw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(4, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psrad(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(4, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psrlw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psrld(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psrlq(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x73);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86Assembler::psrldq(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitUint8(0x0F);
+  EmitUint8(0x73);
+  EmitXmmRegisterOperand(3, reg);
+  EmitUint8(shift_count.value());
+}
+
+
 void X86Assembler::fldl(const Address& src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xDD);
diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index 4343e2e..2999599 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -408,14 +408,9 @@
   void movsd(const Address& dst, XmmRegister src);
   void movsd(XmmRegister dst, XmmRegister src);
 
-  void psrlq(XmmRegister reg, const Immediate& shift_count);
-  void punpckldq(XmmRegister dst, XmmRegister src);
-
   void movhpd(XmmRegister dst, const Address& src);
   void movhpd(const Address& dst, XmmRegister src);
 
-  void psrldq(XmmRegister reg, const Immediate& shift_count);
-
   void addsd(XmmRegister dst, XmmRegister src);
   void addsd(XmmRegister dst, const Address& src);
   void subsd(XmmRegister dst, XmmRegister src);
@@ -436,10 +431,20 @@
   void movdqa(const Address& dst, XmmRegister src);  // store aligned
   void movdqu(const Address& dst, XmmRegister src);  // store unaligned
 
-  void paddd(XmmRegister dst, XmmRegister src);  // no addr variant (for now)
+  void paddb(XmmRegister dst, XmmRegister src);  // no addr variant (for now)
+  void psubb(XmmRegister dst, XmmRegister src);
+
+  void paddw(XmmRegister dst, XmmRegister src);
+  void psubw(XmmRegister dst, XmmRegister src);
+  void pmullw(XmmRegister dst, XmmRegister src);
+
+  void paddd(XmmRegister dst, XmmRegister src);
   void psubd(XmmRegister dst, XmmRegister src);
   void pmulld(XmmRegister dst, XmmRegister src);
 
+  void paddq(XmmRegister dst, XmmRegister src);
+  void psubq(XmmRegister dst, XmmRegister src);
+
   void cvtsi2ss(XmmRegister dst, Register src);
   void cvtsi2sd(XmmRegister dst, Register src);
 
@@ -489,6 +494,24 @@
   void shufps(XmmRegister dst, XmmRegister src, const Immediate& imm);
   void pshufd(XmmRegister dst, XmmRegister src, const Immediate& imm);
 
+  void punpcklbw(XmmRegister dst, XmmRegister src);
+  void punpcklwd(XmmRegister dst, XmmRegister src);
+  void punpckldq(XmmRegister dst, XmmRegister src);
+  void punpcklqdq(XmmRegister dst, XmmRegister src);
+
+  void psllw(XmmRegister reg, const Immediate& shift_count);
+  void pslld(XmmRegister reg, const Immediate& shift_count);
+  void psllq(XmmRegister reg, const Immediate& shift_count);
+
+  void psraw(XmmRegister reg, const Immediate& shift_count);
+  void psrad(XmmRegister reg, const Immediate& shift_count);
+  // no psraq
+
+  void psrlw(XmmRegister reg, const Immediate& shift_count);
+  void psrld(XmmRegister reg, const Immediate& shift_count);
+  void psrlq(XmmRegister reg, const Immediate& shift_count);
+  void psrldq(XmmRegister reg, const Immediate& shift_count);
+
   void flds(const Address& src);
   void fstps(const Address& dst);
   void fsts(const Address& dst);
diff --git a/compiler/utils/x86/assembler_x86_test.cc b/compiler/utils/x86/assembler_x86_test.cc
index c6ab893..a74bea2 100644
--- a/compiler/utils/x86/assembler_x86_test.cc
+++ b/compiler/utils/x86/assembler_x86_test.cc
@@ -122,18 +122,6 @@
   DriverStr(expected, "movntl");
 }
 
-TEST_F(AssemblerX86Test, psrlq) {
-  GetAssembler()->psrlq(x86::XMM0, CreateImmediate(32));
-  const char* expected = "psrlq $0x20, %xmm0\n";
-  DriverStr(expected, "psrlq");
-}
-
-TEST_F(AssemblerX86Test, punpckldq) {
-  GetAssembler()->punpckldq(x86::XMM0, x86::XMM1);
-  const char* expected = "punpckldq %xmm1, %xmm0\n";
-  DriverStr(expected, "punpckldq");
-}
-
 TEST_F(AssemblerX86Test, LoadLongConstant) {
   GetAssembler()->LoadLongConstant(x86::XMM0, 51);
   const char* expected =
@@ -521,6 +509,26 @@
   DriverStr(RepeatFF(&x86::X86Assembler::divpd, "divpd %{reg2}, %{reg1}"), "divpd");
 }
 
+TEST_F(AssemblerX86Test, PAddB) {
+  DriverStr(RepeatFF(&x86::X86Assembler::paddb, "paddb %{reg2}, %{reg1}"), "paddb");
+}
+
+TEST_F(AssemblerX86Test, PSubB) {
+  DriverStr(RepeatFF(&x86::X86Assembler::psubb, "psubb %{reg2}, %{reg1}"), "psubb");
+}
+
+TEST_F(AssemblerX86Test, PAddW) {
+  DriverStr(RepeatFF(&x86::X86Assembler::paddw, "paddw %{reg2}, %{reg1}"), "paddw");
+}
+
+TEST_F(AssemblerX86Test, PSubW) {
+  DriverStr(RepeatFF(&x86::X86Assembler::psubw, "psubw %{reg2}, %{reg1}"), "psubw");
+}
+
+TEST_F(AssemblerX86Test, PMullW) {
+  DriverStr(RepeatFF(&x86::X86Assembler::pmullw, "pmullw %{reg2}, %{reg1}"), "pmullw");
+}
+
 TEST_F(AssemblerX86Test, PAddD) {
   DriverStr(RepeatFF(&x86::X86Assembler::paddd, "paddd %{reg2}, %{reg1}"), "paddd");
 }
@@ -533,6 +541,14 @@
   DriverStr(RepeatFF(&x86::X86Assembler::pmulld, "pmulld %{reg2}, %{reg1}"), "pmulld");
 }
 
+TEST_F(AssemblerX86Test, PAddQ) {
+  DriverStr(RepeatFF(&x86::X86Assembler::paddq, "paddq %{reg2}, %{reg1}"), "paddq");
+}
+
+TEST_F(AssemblerX86Test, PSubQ) {
+  DriverStr(RepeatFF(&x86::X86Assembler::psubq, "psubq %{reg2}, %{reg1}"), "psubq");
+}
+
 TEST_F(AssemblerX86Test, XorPD) {
   DriverStr(RepeatFF(&x86::X86Assembler::xorpd, "xorpd %{reg2}, %{reg1}"), "xorpd");
 }
@@ -581,6 +597,67 @@
   DriverStr(RepeatFFI(&x86::X86Assembler::pshufd, 1, "pshufd ${imm}, %{reg2}, %{reg1}"), "pshufd");
 }
 
+TEST_F(AssemblerX86Test, Punpcklbw) {
+  DriverStr(RepeatFF(&x86::X86Assembler::punpcklbw, "punpcklbw %{reg2}, %{reg1}"), "punpcklbw");
+}
+
+TEST_F(AssemblerX86Test, Punpcklwd) {
+  DriverStr(RepeatFF(&x86::X86Assembler::punpcklwd, "punpcklwd %{reg2}, %{reg1}"), "punpcklwd");
+}
+
+TEST_F(AssemblerX86Test, Punpckldq) {
+  DriverStr(RepeatFF(&x86::X86Assembler::punpckldq, "punpckldq %{reg2}, %{reg1}"), "punpckldq");
+}
+
+TEST_F(AssemblerX86Test, Punpcklqdq) {
+  DriverStr(RepeatFF(&x86::X86Assembler::punpcklqdq, "punpcklqdq %{reg2}, %{reg1}"), "punpcklqdq");
+}
+
+TEST_F(AssemblerX86Test, psllw) {
+  GetAssembler()->psllw(x86::XMM0, CreateImmediate(16));
+  DriverStr("psllw $0x10, %xmm0\n", "psllwi");
+}
+
+TEST_F(AssemblerX86Test, pslld) {
+  GetAssembler()->pslld(x86::XMM0, CreateImmediate(16));
+  DriverStr("pslld $0x10, %xmm0\n", "pslldi");
+}
+
+TEST_F(AssemblerX86Test, psllq) {
+  GetAssembler()->psllq(x86::XMM0, CreateImmediate(16));
+  DriverStr("psllq $0x10, %xmm0\n", "psllqi");
+}
+
+TEST_F(AssemblerX86Test, psraw) {
+  GetAssembler()->psraw(x86::XMM0, CreateImmediate(16));
+  DriverStr("psraw $0x10, %xmm0\n", "psrawi");
+}
+
+TEST_F(AssemblerX86Test, psrad) {
+  GetAssembler()->psrad(x86::XMM0, CreateImmediate(16));
+  DriverStr("psrad $0x10, %xmm0\n", "psradi");
+}
+
+TEST_F(AssemblerX86Test, psrlw) {
+  GetAssembler()->psrlw(x86::XMM0, CreateImmediate(16));
+  DriverStr("psrlw $0x10, %xmm0\n", "psrlwi");
+}
+
+TEST_F(AssemblerX86Test, psrld) {
+  GetAssembler()->psrld(x86::XMM0, CreateImmediate(16));
+  DriverStr("psrld $0x10, %xmm0\n", "psrldi");
+}
+
+TEST_F(AssemblerX86Test, psrlq) {
+  GetAssembler()->psrlq(x86::XMM0, CreateImmediate(16));
+  DriverStr("psrlq $0x10, %xmm0\n", "psrlqi");
+}
+
+TEST_F(AssemblerX86Test, psrldq) {
+  GetAssembler()->psrldq(x86::XMM0, CreateImmediate(16));
+  DriverStr("psrldq $0x10, %xmm0\n", "psrldqi");
+}
+
 /////////////////
 // Near labels //
 /////////////////
diff --git a/compiler/utils/x86_64/assembler_x86_64.cc b/compiler/utils/x86_64/assembler_x86_64.cc
index b41be80..458204a 100644
--- a/compiler/utils/x86_64/assembler_x86_64.cc
+++ b/compiler/utils/x86_64/assembler_x86_64.cc
@@ -882,6 +882,56 @@
 }
 
 
+void X86_64Assembler::paddb(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xFC);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::psubb(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xF8);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::paddw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xFD);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::psubw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xF9);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::pmullw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xD5);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
 void X86_64Assembler::paddd(XmmRegister dst, XmmRegister src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x66);
@@ -913,6 +963,26 @@
 }
 
 
+void X86_64Assembler::paddq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xD4);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::psubq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0xFB);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
 void X86_64Assembler::cvtsi2ss(XmmRegister dst, CpuRegister src) {
   cvtsi2ss(dst, src, false);
 }
@@ -1354,6 +1424,142 @@
 }
 
 
+void X86_64Assembler::punpcklbw(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0x60);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::punpcklwd(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0x61);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::punpckldq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0x62);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::punpcklqdq(XmmRegister dst, XmmRegister src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex32(dst, src);
+  EmitUint8(0x0F);
+  EmitUint8(0x6C);
+  EmitXmmRegisterOperand(dst.LowBits(), src);
+}
+
+
+void X86_64Assembler::psllw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::pslld(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psllq(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x73);
+  EmitXmmRegisterOperand(6, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psraw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(4, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psrad(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(4, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psrlw(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x71);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psrld(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x72);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
+void X86_64Assembler::psrlq(XmmRegister reg, const Immediate& shift_count) {
+  DCHECK(shift_count.is_uint8());
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x66);
+  EmitOptionalRex(false, false, false, false, reg.NeedsRex());
+  EmitUint8(0x0F);
+  EmitUint8(0x73);
+  EmitXmmRegisterOperand(2, reg);
+  EmitUint8(shift_count.value());
+}
+
+
 void X86_64Assembler::fldl(const Address& src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xDD);
diff --git a/compiler/utils/x86_64/assembler_x86_64.h b/compiler/utils/x86_64/assembler_x86_64.h
index 43ea12a..0dc11d8 100644
--- a/compiler/utils/x86_64/assembler_x86_64.h
+++ b/compiler/utils/x86_64/assembler_x86_64.h
@@ -452,10 +452,20 @@
   void movdqa(const Address& dst, XmmRegister src);  // store aligned
   void movdqu(const Address& dst, XmmRegister src);  // store unaligned
 
-  void paddd(XmmRegister dst, XmmRegister src);  // no addr variant (for now)
+  void paddb(XmmRegister dst, XmmRegister src);  // no addr variant (for now)
+  void psubb(XmmRegister dst, XmmRegister src);
+
+  void paddw(XmmRegister dst, XmmRegister src);
+  void psubw(XmmRegister dst, XmmRegister src);
+  void pmullw(XmmRegister dst, XmmRegister src);
+
+  void paddd(XmmRegister dst, XmmRegister src);
   void psubd(XmmRegister dst, XmmRegister src);
   void pmulld(XmmRegister dst, XmmRegister src);
 
+  void paddq(XmmRegister dst, XmmRegister src);
+  void psubq(XmmRegister dst, XmmRegister src);
+
   void cvtsi2ss(XmmRegister dst, CpuRegister src);  // Note: this is the r/m32 version.
   void cvtsi2ss(XmmRegister dst, CpuRegister src, bool is64bit);
   void cvtsi2ss(XmmRegister dst, const Address& src, bool is64bit);
@@ -512,6 +522,23 @@
   void shufps(XmmRegister dst, XmmRegister src, const Immediate& imm);
   void pshufd(XmmRegister dst, XmmRegister src, const Immediate& imm);
 
+  void punpcklbw(XmmRegister dst, XmmRegister src);
+  void punpcklwd(XmmRegister dst, XmmRegister src);
+  void punpckldq(XmmRegister dst, XmmRegister src);
+  void punpcklqdq(XmmRegister dst, XmmRegister src);
+
+  void psllw(XmmRegister reg, const Immediate& shift_count);
+  void pslld(XmmRegister reg, const Immediate& shift_count);
+  void psllq(XmmRegister reg, const Immediate& shift_count);
+
+  void psraw(XmmRegister reg, const Immediate& shift_count);
+  void psrad(XmmRegister reg, const Immediate& shift_count);
+  // no psraq
+
+  void psrlw(XmmRegister reg, const Immediate& shift_count);
+  void psrld(XmmRegister reg, const Immediate& shift_count);
+  void psrlq(XmmRegister reg, const Immediate& shift_count);
+
   void flds(const Address& src);
   void fstps(const Address& dst);
   void fsts(const Address& dst);
diff --git a/compiler/utils/x86_64/assembler_x86_64_test.cc b/compiler/utils/x86_64/assembler_x86_64_test.cc
index aeb1911..fe94497 100644
--- a/compiler/utils/x86_64/assembler_x86_64_test.cc
+++ b/compiler/utils/x86_64/assembler_x86_64_test.cc
@@ -1128,6 +1128,26 @@
   DriverStr(RepeatFF(&x86_64::X86_64Assembler::divpd, "divpd %{reg2}, %{reg1}"), "divpd");
 }
 
+TEST_F(AssemblerX86_64Test, Paddb) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::paddb, "paddb %{reg2}, %{reg1}"), "paddb");
+}
+
+TEST_F(AssemblerX86_64Test, Psubb) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::psubb, "psubb %{reg2}, %{reg1}"), "psubb");
+}
+
+TEST_F(AssemblerX86_64Test, Paddw) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::paddw, "paddw %{reg2}, %{reg1}"), "paddw");
+}
+
+TEST_F(AssemblerX86_64Test, Psubw) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::psubw, "psubw %{reg2}, %{reg1}"), "psubw");
+}
+
+TEST_F(AssemblerX86_64Test, Pmullw) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::pmullw, "pmullw %{reg2}, %{reg1}"), "pmullw");
+}
+
 TEST_F(AssemblerX86_64Test, Paddd) {
   DriverStr(RepeatFF(&x86_64::X86_64Assembler::paddd, "paddd %{reg2}, %{reg1}"), "paddd");
 }
@@ -1140,6 +1160,14 @@
   DriverStr(RepeatFF(&x86_64::X86_64Assembler::pmulld, "pmulld %{reg2}, %{reg1}"), "pmulld");
 }
 
+TEST_F(AssemblerX86_64Test, Paddq) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::paddq, "paddq %{reg2}, %{reg1}"), "paddq");
+}
+
+TEST_F(AssemblerX86_64Test, Psubq) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::psubq, "psubq %{reg2}, %{reg1}"), "psubq");
+}
+
 TEST_F(AssemblerX86_64Test, Cvtsi2ss) {
   DriverStr(RepeatFr(&x86_64::X86_64Assembler::cvtsi2ss, "cvtsi2ss %{reg2}, %{reg1}"), "cvtsi2ss");
 }
@@ -1261,6 +1289,78 @@
   DriverStr(RepeatFFI(&x86_64::X86_64Assembler::pshufd, 1, "pshufd ${imm}, %{reg2}, %{reg1}"), "pshufd");
 }
 
+TEST_F(AssemblerX86_64Test, Punpcklbw) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::punpcklbw, "punpcklbw %{reg2}, %{reg1}"), "punpcklbw");
+}
+
+TEST_F(AssemblerX86_64Test, Punpcklwd) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::punpcklwd, "punpcklwd %{reg2}, %{reg1}"), "punpcklwd");
+}
+
+TEST_F(AssemblerX86_64Test, Punpckldq) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::punpckldq, "punpckldq %{reg2}, %{reg1}"), "punpckldq");
+}
+
+TEST_F(AssemblerX86_64Test, Punpcklqdq) {
+  DriverStr(RepeatFF(&x86_64::X86_64Assembler::punpcklqdq, "punpcklqdq %{reg2}, %{reg1}"), "punpcklqdq");
+}
+
+TEST_F(AssemblerX86_64Test, Psllw) {
+  GetAssembler()->psllw(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psllw(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psllw $1, %xmm0\n"
+            "psllw $2, %xmm15\n", "psllwi");
+}
+
+TEST_F(AssemblerX86_64Test, Pslld) {
+  GetAssembler()->pslld(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->pslld(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("pslld $1, %xmm0\n"
+            "pslld $2, %xmm15\n", "pslldi");
+}
+
+TEST_F(AssemblerX86_64Test, Psllq) {
+  GetAssembler()->psllq(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psllq(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psllq $1, %xmm0\n"
+            "psllq $2, %xmm15\n", "psllqi");
+}
+
+TEST_F(AssemblerX86_64Test, Psraw) {
+  GetAssembler()->psraw(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psraw(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psraw $1, %xmm0\n"
+            "psraw $2, %xmm15\n", "psrawi");
+}
+
+TEST_F(AssemblerX86_64Test, Psrad) {
+  GetAssembler()->psrad(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psrad(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psrad $1, %xmm0\n"
+            "psrad $2, %xmm15\n", "psradi");
+}
+
+TEST_F(AssemblerX86_64Test, Psrlw) {
+  GetAssembler()->psrlw(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psrlw(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psrlw $1, %xmm0\n"
+            "psrlw $2, %xmm15\n", "psrlwi");
+}
+
+TEST_F(AssemblerX86_64Test, Psrld) {
+  GetAssembler()->psrld(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psrld(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psrld $1, %xmm0\n"
+            "psrld $2, %xmm15\n", "pslldi");
+}
+
+TEST_F(AssemblerX86_64Test, Psrlq) {
+  GetAssembler()->psrlq(x86_64::XmmRegister(x86_64::XMM0),  x86_64::Immediate(1));
+  GetAssembler()->psrlq(x86_64::XmmRegister(x86_64::XMM15), x86_64::Immediate(2));
+  DriverStr("psrlq $1, %xmm0\n"
+            "psrlq $2, %xmm15\n", "pslrqi");
+}
+
 TEST_F(AssemblerX86_64Test, UcomissAddress) {
   GetAssembler()->ucomiss(x86_64::XmmRegister(x86_64::XMM0), x86_64::Address(
       x86_64::CpuRegister(x86_64::RDI), x86_64::CpuRegister(x86_64::RBX), x86_64::TIMES_4, 12));