RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o alpha.obj %S/Inputs/alpha.ll
RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o beta.obj %S/Inputs/beta.ll
RUN: lld-link /out:alpha.dll /dll alpha.obj /implib:alpha.lib
RUN: not lld-link /out:beta.dll /dll alpha.obj beta.obj alpha.lib 2>&1 | FileCheck %s -check-prefix CHECK-ALPHA

CHECK-ALPHA: error: duplicate symbol: f in {{.*}}alpha.obj and in alpha.dll

RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o gamma.obj %S/Inputs/gamma.ll
RUN: not lld-link /out:gamma.exe /subsystem:console /entry:mainCRTStartup gamma.obj alpha.lib 2>&1 | FileCheck %s -check-prefix CHECK-GAMMA

CHECK-GAMMA: error: duplicate symbol: __imp_f in {{.*}}gamma.obj and in alpha.dll