[llvm-branch-commits] [lldb] Handle backwards branches in UnwindAssemblyInstEmulation (PR #169633)

[David Spickett via llvm-branch-commits]

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@@ -530,19 +534,19 @@ bool UnwindAssemblyInstEmulation::WriteRegister(
   case EmulateInstruction::eContextAbsoluteBranchRegister:
   case EmulateInstruction::eContextRelativeBranchImmediate: {
     if (context.GetInfoType() == EmulateInstruction::eInfoTypeISAAndImmediate &&
-        context.info.ISAAndImmediate.unsigned_data32 > 0) {
+        context.info.ISAAndImmediate.unsigned_data32 != 0) {
       m_branch_offset = context.info.ISAAndImmediate.unsigned_data32;
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DavidSpickett wrote:

Istr Arm having some "genius" way of encoding immediates where in some cases the immediate decodes to more than the field it was stored in. But yeah, easier to change the type than go check all the instructions.

https://github.com/llvm/llvm-project/pull/169633