================
@@ -474,7 +474,7 @@ bool UnwindPlan::PlanValidAtAddress(Address addr) const {
// If the 0th Row of unwind instructions is missing, or if it doesn't provide
// a register to use to find the Canonical Frame Address, this is not a valid
// UnwindPlan.
- const Row *row0 = GetRowForFunctionOffset(0);
+ const Row *row0 = GetRowAtIndex(0);
----------------
labath wrote:
This actually changes code back to the state before I started messing with it
(#127661). In that patch, I changed it to use `GetRowForFunctionOffset` because
I thought it better captures the original intent of the code ("check the value
of CFA at function entry").
I still sort of think that, but now I also think that check is too strict (just
because we don't have a CFA at offset zero, it doesn't mean we won't have it at
some other offset). So this goes back to checking the first row (whatever it's
offset), but I'm also open to other options (checking that *any* row contains
the CFA, or maybe removing the check entirely -- just checking that *a* row
exists)
https://github.com/llvm/llvm-project/pull/135333
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