[llvm-bugs] [Bug 38014] New: [debugify] sroa fail

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38014

            Bug ID: 38014
           Summary: [debugify] sroa fail
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: greg.bedwell at sony.com
                CC: anastasis.gramm2 at gmail.com, llvm-bugs at lists.llvm.org,
                    vsk at apple.com
            Blocks: 37953

Created attachment 20506
  --> https://bugs.llvm.org/attachment.cgi?id=20506&action=edit
ll reproducer

$ clang --version
clang version 7.0.0 (trunk 336047) (llvm/trunk 336095)
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: e:\work\upstream-llvm\build-vs2015-native-ninja\bin

$ cat SROA.cpp
void foo() {
  int bar;
  for (;; bar++)
    ;
}

$ clang SROA.cpp -S -emit-llvm -O0 -Xclang -disable-O0-optnone -o SROA.ll

$ opt -disable-output -debugify-each -sroa SROA.ll
ERROR: Instruction with empty DebugLoc in function ?foo@@YAXXZ --  %bar.0 = phi
i32 [ undef, %entry ], [ %inc, %for.inc ]
WARNING: Missing line 1
WARNING: Missing line 4
WARNING: Missing line 6
CheckFunctionDebugify [SROA]: FAIL
CheckFunctionDebugify [Module Verifier]: PASS

$


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=37953
[Bug 37953] [meta] [debugify] fix -check-debugify failures
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