Ensure that the SSE2 TranscendentalCache stub calls GC if it runs out of memo...

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
===================================================================
--- src/ia32/code-stubs-ia32.cc	(revision 6087)
+++ src/ia32/code-stubs-ia32.cc	(working copy)
@@ -2624,6 +2624,13 @@
     __ fstp_d(Operand(esp, 0));
     __ movdbl(xmm1, Operand(esp, 0));
     __ add(Operand(esp), Immediate(kDoubleSize));
+    // We return the value in xmm1 without adding it to the cache, but
+    // we cause a scavenging GC so that future allocations will succeed.
+    __ EnterInternalFrame();
+    // Allocate an unused object bigger than a HeapNumber.
+    __ push(Immediate(Smi::FromInt(2 * kDoubleSize)));
+    __ CallRuntimeSaveDoubles(Runtime::kAllocateInNewSpace);
+    __ LeaveInternalFrame();
     __ Ret();
   }