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64bfe5c32d
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: 254336
14 lines
504 B
LLVM
14 lines
504 B
LLVM
; RUN: not llvm-link -S %s %p/Inputs/comdat13.ll -o %t.ll 2>&1 | FileCheck %s
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; In Inputs/comdat13.ll a function not in the $foo comdat (zed) references an
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; internal function in the comdat $foo.
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; We might want to have the verifier reject that, but for now we at least check
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; that the linker produces an error.
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; This is the IR equivalent of the "relocation refers to discarded section" in
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; an ELF linker.
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; CHECK: Declaration points to discarded value
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$foo = comdat any
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@foo = global i8 0, comdat
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