[Lldb-commits] [lldb] [llvm] [AArch64][llvm] Tighten SYSP parsing; don't disassemble invalid encodings (PR #182410)

[Jonathan Thackray via lldb-commits]

================
@@ -45,6 +45,22 @@ sysp #4, c2, c1, #0, x0, x1// VTTBR_EL2     3  4  2  1  0
 // CHECK-INST: sysp #4, c2, c1, #0, x0, x1
 // CHECK-ENCODING: encoding: [0x00,0x21,0x4c,0xd5]
 
+sysp #7, c2, c0, #0, x0, x1
----------------
jthackray wrote:

> Can you double check that the ranges are correct?
> op1 could be only between o to 6
> Cn could be only between 8 and 9
> op2 could be only between 0 and 7

When I started this PR, that was true. However, the specs have recently been updated. Let me find the link. I had to explicitly change that code a while back.

https://github.com/llvm/llvm-project/pull/182410