-OPTFLAG(GSHARED ,24, "gshared", "Share generics")
-OPTFLAG(SIMD ,25, "simd", "Simd intrinsics")
+OPTFLAG(GSHAREDVT,24, "gsharedvt", "Generic sharing for valuetypes")
+OPTFLAG (GSHARED, 25, "gshared", "Generic Sharing")
+OPTFLAG(SIMD ,26, "simd", "Simd intrinsics")
+OPTFLAG(UNSAFE ,27, "unsafe", "Remove bound checks and perform other dangerous changes")
+OPTFLAG(ALIAS_ANALYSIS ,28, "alias-analysis", "Alias analysis of locals")