[all-commits] [llvm/llvm-project] 16c287: Reland "[lldb][DWARFExpression] Fix DW_OP_div to u...

[jwnhy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16c2872d7b09eee67dd0c7ef6b5dd3c3724d3cfc
      https://github.com/llvm/llvm-project/commit/16c2872d7b09eee67dd0c7ef6b5dd3c3724d3cfc
  Author: LU Hongyi <hluaw at connect.ust.hk>
  Date:   2023-05-05 (Fri, 05 May 2023)

  Changed paths:
    M lldb/source/Expression/DWARFExpression.cpp
    A lldb/test/Shell/SymbolFile/DWARF/x86/DW_OP_div-with-signed.s

  Log Message:
  -----------
  Reland "[lldb][DWARFExpression] Fix DW_OP_div to use signed division"

This patch resolves an issue where a value
is incorrectly displayed if it is represented
by DW_OP_div.

This issue is caused by lldb evaluating
operands of DW_OP_div as unsigned
and performed unintended unsigned
division.

This issue is resolved by creating two
temporary signed scalar and performing
signed division.

(Addresses GH#61727)

Differential Revision: https://reviews.llvm.org/D147370