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The language reference says that: "If a symbol appears in the @llvm.used list, then the compiler, assembler, and linker are required to treat the symbol as if there is a reference to the symbol that it cannot see" Since even the linker cannot see the reference, we must assume that the reference can be using the symbol table. For example, a user can add __attribute__((used)) to a debug helper function like dump and use it from a debugger. llvm-svn: 187103
21 lines
421 B
LLVM
21 lines
421 B
LLVM
; RUN: opt < %s -internalize -S | FileCheck %s
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@llvm.used = appending global [1 x void ()*] [void ()* @f], section "llvm.metadata"
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@llvm.compiler.used = appending global [1 x void ()*] [void ()* @g], section "llvm.metadata"
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; CHECK: define void @f()
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define void @f() {
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ret void
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}
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; CHECK: define internal void @g()
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define void @g() {
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ret void
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}
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; CHECK: define internal void @h()
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define void @h() {
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ret void
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}
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