MIPS: Fix bug that prevents JALR to JAL optimizations.

TEST=

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/23072023

Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/assembler-mips.cc

@@ -2203,8 +2203,7 @@ void Assembler::set_target_address_at(Address pc, Address target) {
 
   Instr instr3 = instr_at(pc + 2 * kInstrSize);
   uint32_t ipc = reinterpret_cast<uint32_t>(pc + 3 * kInstrSize);
-  bool in_range = (ipc ^ static_cast<uint32_t>(itarget) >>
-                  (kImm26Bits + kImmFieldShift)) == 0;
+  bool in_range = ((ipc ^ itarget) >> (kImm26Bits + kImmFieldShift)) == 0;
   uint32_t target_field =
       static_cast<uint32_t>(itarget & kJumpAddrMask) >> kImmFieldShift;
   bool patched_jump = false;