This is a simple question but is there an efficient way to get the value directly from a bitcast instruction?
<result> = bitcast <ty> <value> to <ty2>
For example, if i have
0x3d61238 %key = alloca [16 x i8], align 16
0x3d612a8 %plain_text = alloca [64 x i8], align 16
0x3d61318 %key1 = bitcast [16 x i8]* %key to i8*
The way i am using is processing all opcodes in %key1, and go back to find %key along the def-use chain. But is there a better way for doing this?
Thanks very much!
If you want to look through bitcasts and other no-op pointer type changes, use Value::stripPointerCasts.