Implement transcendental cache probing in generated code on ARM....

src/x64/codegen-x64.cc

Index: src/x64/codegen-x64.cc
===================================================================
--- src/x64/codegen-x64.cc	(revision 4842)
+++ src/x64/codegen-x64.cc	(working copy)
@@ -8189,14 +8189,15 @@
   __ movl(rcx, rdx);
   __ movl(rax, rdx);
   __ movl(rdi, rdx);
-  __ sarl(rdx, Immediate(8));
-  __ sarl(rcx, Immediate(16));
-  __ sarl(rax, Immediate(24));
+  __ shrl(rdx, Immediate(8));
+  __ shrl(rcx, Immediate(16));
+  __ shrl(rax, Immediate(24));
   __ xorl(rcx, rdx);
   __ xorl(rax, rdi);
   __ xorl(rcx, rax);
   ASSERT(IsPowerOf2(TranscendentalCache::kCacheSize));
   __ andl(rcx, Immediate(TranscendentalCache::kCacheSize - 1));
+
   // ST[0] == double value.
   // rbx = bits of double value.
   // rcx = TranscendentalCache::hash(double value).