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llvm-project/llvm/test/Transforms/GlobalOpt/deaddeclaration.ll

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[GlobalOpt] Dead Eliminate declarations GlobalOpt is already dead-code-eliminating global definitions. With this change it also takes care of declarations. Hopefully this should make it now a strict superset of GlobalDCE. This is important for LTO/ThinLTO as we don't want the linker to see "undefined reference" when it processes the input files: it could prevent proper internalization (or even load an extra file from a static archive, changing the behavior of the program!). llvm-svn: 281653
2016-09-16 04:26:27 +08:00
; RUN: opt < %s -globalopt -S | FileCheck %s
; CHECK-NOT: aa
; CHECK-NOT: bb
declare void @aa()
@bb = external global i8