Add a utility method to the ia32 macro assembler to move a double immediate into an XMM register.

test/cctest/test-macro-assembler-ia32.cc

Index: test/cctest/test-macro-assembler-ia32.cc
diff --git a/test/cctest/test-macro-assembler-ia32.cc b/test/cctest/test-macro-assembler-ia32.cc
index 6a4cfec492a98b031960b67809b2d0b4e81b331c..3ad52712c49a85f1107984a1a02255e43d48dacd 100644
--- a/test/cctest/test-macro-assembler-ia32.cc
+++ b/test/cctest/test-macro-assembler-ia32.cc
@@ -123,6 +123,23 @@ TEST(LoadAndStoreWithRepresentation) {
   __ j(not_equal, &exit);
 
   // Test 5.
+  if (CpuFeatures::IsSupported(SSE2)) {
+    CpuFeatureScope scope(masm, SSE2);
+    __ mov(eax, Immediate(5));  // Test XMM move immediate.
+    __ Move(xmm0, 0.0);
+    __ Move(xmm1, 0.0);
+    __ ucomisd(xmm0, xmm1);
+    __ j(not_equal, &exit);
+    __ Move(xmm2, 991.01);
+    __ ucomisd(xmm0, xmm2);
+    __ j(equal, &exit);
+    __ Move(xmm0, 991.01);
+    __ ucomisd(xmm0, xmm2);
+    __ j(not_equal, &exit);
+  }
+
+  // Test 6.
+  __ mov(eax, Immediate(6));
   __ Move(edx, Immediate(0));  // Test Move()
   __ cmp(edx, Immediate(0));
   __ j(not_equal, &exit);