RUN: not llvm-dwp %p/../Inputs/duplicate/c.dwo %p/../Inputs/duplicate/c.dwo -o %t 2>&1 \
RUN:   | FileCheck --check-prefix=CHECK %s

RUN: not llvm-dwp %p/../Inputs/duplicate/c.dwo %p/../Inputs/duplicate/bc.dwp -o %t 2>&1 \
RUN:   | FileCheck --check-prefix=CHECK --check-prefix=DWP2 %s

RUN: not llvm-dwp %p/../Inputs/duplicate/ac.dwp %p/../Inputs/duplicate/c.dwo -o %t 2>&1 \
RUN:   | FileCheck --check-prefix=CHECK --check-prefix=DWP1 %s

RUN: not llvm-dwp %p/../Inputs/duplicate/ac.dwp %p/../Inputs/duplicate/bc.dwp -o %t 2>&1 \
RUN:   | FileCheck --check-prefix=CHECK --check-prefix=DWP1 --check-prefix=DWP2 %s

Build from a, b, and c.c all containing a single void() func by the name of the file.

CHECK: Duplicate DWO ID ({{.*}}) in 'c.c'
DWP1-SAME: (from '{{.*}}ac.dwp')
CHECK-SAME: and 'c.c'
DWP2-SAME: (from '{{.*}}bc.dwp')