[x64] Implement vpcmpeqd, vpslld, vpsrld AVX instructions.

test/cctest/test-disasm-x64.cc

Index: test/cctest/test-disasm-x64.cc
diff --git a/test/cctest/test-disasm-x64.cc b/test/cctest/test-disasm-x64.cc
index a46eaaa45f321bece182b050f5987e993d31d812..74e1d2212fae3dd808f840e70f532d07af027289 100644
--- a/test/cctest/test-disasm-x64.cc
+++ b/test/cctest/test-disasm-x64.cc
@@ -567,6 +567,11 @@ TEST(DisasmX64) {
       __ vandpd(xmm9, xmm1, Operand(rbx, rcx, times_4, 10000));
       __ vxorpd(xmm0, xmm1, xmm9);
       __ vxorpd(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
+
+      __ vpcmpeqd(xmm0, xmm15, xmm5);
+      __ vpcmpeqd(xmm15, xmm0, Operand(rbx, rcx, times_4, 10000));
+      __ vpsllq(xmm0, xmm15, 21);
+      __ vpsrlq(xmm15, xmm0, 21);
     }
   }