[compiler-rt] [win/asan] GetInstructionSize: Support some more 4 byte instructions. (PR #123709)

[Hans Wennborg via llvm-commits]

================
@@ -829,6 +832,8 @@ static size_t GetInstructionSize(uptr address, size_t* rel_offset = nullptr) {
     case 0x588948:    // 48 89 58 XX : mov QWORD PTR[rax + XX], rbx
     case 0xec8348:    // 48 83 ec XX : sub rsp, XX
     case 0xf88349:    // 49 83 f8 XX : cmp r8, XX
+    case 0x148d4e:    // 4e 8d 14 XX : lea r10, [rcx+r8*XX]
----------------
zmodem wrote:

nit: That last byte doesn't just control the scale (`*XX`) but the base register (`rcx`) and index register (`r8`) as well. Maybe we should write it as `lea r10, [...]`

https://github.com/llvm/llvm-project/pull/123709