Make the C++ tests run without SSE2 support.

test/cctest/test-disasm-ia32.cc

 // Copyright 2007-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 343 matching lines @@
   __ fdiv(3);
 
   __ faddp(3);
   __ fsubp(3);
   __ fmulp(3);
   __ fdivp(3);
   __ fcompp();
   __ fwait();
   __ nop();
   {
-    CHECK(CpuFeatures::IsSupported(SSE2));
-    CpuFeatures::Scope fscope(SSE2);
-    __ cvttss2si(edx, Operand(ebx, ecx, times_4, 10000));
-    __ cvtsi2sd(xmm1, Operand(ebx, ecx, times_4, 10000));
-    __ addsd(xmm1, xmm0);
-    __ mulsd(xmm1, xmm0);
-    __ subsd(xmm1, xmm0);
-    __ divsd(xmm1, xmm0);
-    __ movdbl(xmm1, Operand(ebx, ecx, times_4, 10000));
-    __ movdbl(Operand(ebx, ecx, times_4, 10000), xmm1);
-    __ comisd(xmm0, xmm1);
+    if (CpuFeatures::IsSupported(SSE2)) {
+      CpuFeatures::Scope fscope(SSE2);
+      __ cvttss2si(edx, Operand(ebx, ecx, times_4, 10000));
+      __ cvtsi2sd(xmm1, Operand(ebx, ecx, times_4, 10000));
+      __ addsd(xmm1, xmm0);
+      __ mulsd(xmm1, xmm0);
+      __ subsd(xmm1, xmm0);
+      __ divsd(xmm1, xmm0);
+      __ movdbl(xmm1, Operand(ebx, ecx, times_4, 10000));
+      __ movdbl(Operand(ebx, ecx, times_4, 10000), xmm1);
+      __ comisd(xmm0, xmm1);
 
-    // 128 bit move instructions.
-    __ movdqa(xmm0, Operand(ebx, ecx, times_4, 10000));
-    __ movdqa(Operand(ebx, ecx, times_4, 10000), xmm0);
-    __ movdqu(xmm0, Operand(ebx, ecx, times_4, 10000));
-    __ movdqu(Operand(ebx, ecx, times_4, 10000), xmm0);
+      // 128 bit move instructions.
+      __ movdqa(xmm0, Operand(ebx, ecx, times_4, 10000));
+      __ movdqa(Operand(ebx, ecx, times_4, 10000), xmm0);
+      __ movdqu(xmm0, Operand(ebx, ecx, times_4, 10000));
+      __ movdqu(Operand(ebx, ecx, times_4, 10000), xmm0);
+    }
   }
 
   // cmov.
   {
-    CHECK(CpuFeatures::IsSupported(CMOV));
-    CpuFeatures::Scope use_cmov(CMOV);
-    __ cmov(overflow, eax, Operand(eax, 0));
-    __ cmov(no_overflow, eax, Operand(eax, 1));
-    __ cmov(below, eax, Operand(eax, 2));
-    __ cmov(above_equal, eax, Operand(eax, 3));
-    __ cmov(equal, eax, Operand(ebx, 0));
-    __ cmov(not_equal, eax, Operand(ebx, 1));
-    __ cmov(below_equal, eax, Operand(ebx, 2));
-    __ cmov(above, eax, Operand(ebx, 3));
-    __ cmov(sign, eax, Operand(ecx, 0));
-    __ cmov(not_sign, eax, Operand(ecx, 1));
-    __ cmov(parity_even, eax, Operand(ecx, 2));
-    __ cmov(parity_odd, eax, Operand(ecx, 3));
-    __ cmov(less, eax, Operand(edx, 0));
-    __ cmov(greater_equal, eax, Operand(edx, 1));
-    __ cmov(less_equal, eax, Operand(edx, 2));
-    __ cmov(greater, eax, Operand(edx, 3));
+    if (CpuFeatures::IsSupported(CMOV)) {
+      CpuFeatures::Scope use_cmov(CMOV);
+      __ cmov(overflow, eax, Operand(eax, 0));
+      __ cmov(no_overflow, eax, Operand(eax, 1));
+      __ cmov(below, eax, Operand(eax, 2));
+      __ cmov(above_equal, eax, Operand(eax, 3));
+      __ cmov(equal, eax, Operand(ebx, 0));
+      __ cmov(not_equal, eax, Operand(ebx, 1));
+      __ cmov(below_equal, eax, Operand(ebx, 2));
+      __ cmov(above, eax, Operand(ebx, 3));
+      __ cmov(sign, eax, Operand(ecx, 0));
+      __ cmov(not_sign, eax, Operand(ecx, 1));
+      __ cmov(parity_even, eax, Operand(ecx, 2));
+      __ cmov(parity_odd, eax, Operand(ecx, 3));
+      __ cmov(less, eax, Operand(edx, 0));
+      __ cmov(greater_equal, eax, Operand(edx, 1));
+      __ cmov(less_equal, eax, Operand(edx, 2));
+      __ cmov(greater, eax, Operand(edx, 3));
+    }
   }
 
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   Object* code = Heap::CreateCode(desc,
                                   NULL,
                                   Code::ComputeFlags(Code::STUB),
                                   Handle<Object>(Heap::undefined_value()));
   CHECK(code->IsCode());
 #ifdef DEBUG
   Code::cast(code)->Print();
   byte* begin = Code::cast(code)->instruction_start();
   byte* end = begin + Code::cast(code)->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 }
 
 #undef __