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llvm-project/llvm/test/Linker/comdat11.ll

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Bring r254336 back: The difference is that now we don't error on out-of-comdat access to internal global values. We copy them instead. This seems to match the expectation of COFF linkers (see pr25686). Original message: Start deciding earlier what to link. A traditional linker is roughly split in symbol resolution and "copying stuff". The two tasks are badly mixed in lib/Linker. This starts splitting them apart. With this patch there are no direct call to linkGlobalValueBody or linkGlobalValueProto. Everything is linked via WapValue. This also includes a few fixes: * A GV goes undefined if the comdat is dropped (comdat11.ll). * We error if an internal GV goes undefined (comdat13.ll). * We don't link an unused comdat. The first two match the behavior of an ELF linker. The second one is equivalent to running globaldce on the input. llvm-svn: 254418
2015-12-01 23:19:48 +08:00
; RUN: llvm-link -S %s %p/Inputs/comdat11.ll -o - | FileCheck %s
$foo = comdat any
@foo = global i8 0, comdat
; CHECK: @foo = global i8 0, comdat
; CHECK: define void @zed() {
; CHECK: call void @bar()
; CHECK: ret void
; CHECK: }
; CHECK: declare void @bar()