1; Ensure t.a.err is non-empty. 2; RUN: echo foo > %t.a.err 3; RUN: llvm-link %s %S/Inputs/datalayout-a.ll -S -o - 2>>%t.a.err 4; RUN: FileCheck --check-prefix=WARN-A %s < %t.a.err 5 6; RUN: llvm-link %s %S/Inputs/datalayout-b.ll -S -o - 2>%t.b.err 7; RUN: cat %t.b.err | FileCheck --check-prefix=WARN-B %s 8 9target datalayout = "e" 10 11 12; WARN-A-NOT: warning 13 14; WARN-B: warning: Linking two modules of different data layouts: 15