[LLVMbugs] [Bug 22498] New: Debug location for b.vs is dropped at some point.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22498

            Bug ID: 22498
           Summary: Debug location for b.vs is dropped at some point.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: AArch64
          Assignee: unassignedbugs at nondot.org
          Reporter: ahmed.bougacha at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 13819
  --> http://llvm.org/bugs/attachment.cgi?id=13819&action=edit
IR testcase

For the attached IR, I expected a debug location for the branch, at line:col
42:42.  That is:

        .loc    1 21 21 is_stmt 1       ; /path:21:21
        str      w8, [x2]
        .loc    1 42 42 is_stmt 1       ; /path:42:42
        b.vs    LBB0_2

Instead, we get this:

        .loc    1 21 21 is_stmt 1       ; /path:21:21
        str      w8, [x2]
        b.vs    LBB0_2

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