[x64] Emit vmovss when AVX is enabled.

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 10ab568a1bfb38857a39fec2289a7eda96808b52..a00e5fdbeecba4e93cb27709ab4c9821f289e44c 100644
--- a/test/cctest/test-disasm-x64.cc
+++ b/test/cctest/test-disasm-x64.cc
@@ -508,6 +508,8 @@ TEST(DisasmX64) {
       __ vminss(xmm9, xmm1, Operand(rbx, rcx, times_8, 10000));
       __ vmaxss(xmm8, xmm1, xmm2);
       __ vmaxss(xmm9, xmm1, Operand(rbx, rcx, times_1, 10000));
+      __ vmovss(xmm9, Operand(r11, rcx, times_8, -10000));
+      __ vmovss(Operand(rbx, r9, times_4, 10000), xmm1);
       __ vucomiss(xmm9, xmm1);
       __ vucomiss(xmm8, Operand(rbx, rdx, times_2, 10981));