[Lldb-commits] [PATCH] D14633: [LLDB][MIPS] Clear bug 25194 - LLDB-Server Assertion raised when single stepping on MIPS

[Sagar Thakur via lldb-commits]

sagar added a comment.

> Admittedly it's a bit unintuitive for an unsigned 32-bit value from a MIPS32 binary to be represented in a 64-bit register as, for example, 0xffffffff80000000 but the debugger shouldn't normally admit to the existence of the extra bits when debugging 32-bit code so the user won't normally see this.


In case of MIPS32 the 0xffffffff value in 32 MSB will always be truncated out of RegisterValue, since SetBytes() will only write lower 4 bytes of the value into RegisterValue. The problem here is that RegisterValue initially contains garbage value. Therefore clearing all bits in RegisterValue before writing actual 32-bit value solves the problem.


Repository:
  rL LLVM

http://reviews.llvm.org/D14633