X87: enable the crankshaft compiler for X87 port.

test/cctest/test-disasm-x87.cc

Index: test/cctest/test-disasm-x87.cc
diff --git a/test/cctest/test-disasm-x87.cc b/test/cctest/test-disasm-x87.cc
index 17c49af6c31fe865b25a81e827c6f3d4858ca710..6cd33e55748dec461d22009b4d22d4a77732d1e8 100644
--- a/test/cctest/test-disasm-x87.cc
+++ b/test/cctest/test-disasm-x87.cc
@@ -349,6 +349,7 @@ TEST(DisasmIa320) {
   __ fprem1();
   __ fincstp();
   __ ftst();
+  __ fxam();
   __ fxch(3);
   __ fld_s(Operand(ebx, ecx, times_4, 10000));
   __ fstp_s(Operand(ebx, ecx, times_4, 10000));
@@ -378,6 +379,12 @@ TEST(DisasmIa320) {
   __ fninit();
   __ nop();
 
+  __ fldcw(Operand(ebx, ecx, times_4, 10000));
+  __ fnstcw(Operand(ebx, ecx, times_4, 10000));
+  __ fadd_d(Operand(ebx, ecx, times_4, 10000));
+  __ fnsave(Operand(ebx, ecx, times_4, 10000));
+  __ frstor(Operand(ebx, ecx, times_4, 10000));
+
   // xchg.
   {
     __ xchg(eax, eax);