[llvm-bugs] [Bug 40887] New: Regression(likely r348320): debug info is a lot more jumpy

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40887

            Bug ID: 40887
           Summary: Regression(likely r348320): debug info is a lot more
                    jumpy
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: jdevlieghere at apple.com, keith.walker at arm.com,
                    llvm-bugs at lists.llvm.org,
                    paul_robinson at playstation.sony.com

We don't have a great repro, but debugging chromium's binaries on iOS got a lot
worse recently.

https://crbug.com/910200 is the upstream report; there's some evidence that
this started after r348320.

Apparently it's difficult to reduce the issue. The folks working on
chromium/ios are not very familiar with llvm, and the people working on llvm
stuff for chromium aren't super familiar with ios. So we don't have a good bug
report, but filing this in the hope that someone says "well of course" and
lands a fix :) Failing that, please walk us through what you need for analyzing
this.

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