OPTFLAG(SSAPRE ,19, "ssapre", "SSA based Partial Redundancy Elimination")
OPTFLAG(EXCEPTION,20, "exception", "Optimize exception catch blocks")
OPTFLAG(SSA ,21, "ssa", "Use plain SSA form")
-OPTFLAG(TREEPROP ,22, "treeprop", "Tree propagation")
OPTFLAG(SSE2 ,23, "sse2", "SSE2 instructions on x86")
+OPTFLAG(GSHARED ,24, "gshared", "Share generics")
+OPTFLAG(SIMD ,25, "simd", "Simd intrinsics")
+OPTFLAG(UNSAFE ,26, "unsafe", "Remove bound checks and perform other dangerous changes")