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TheRock/compiler/amd-llvm/llvm/test/LTO/Resolution/X86/not-prevailing-weak-aliasee.ll
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LLVM

; Test to ensure that non-prevailing weak aliasee is kept as a weak definition
; when the alias is not dead.
; RUN: opt -module-summary %s -o %t1.bc
; RUN: llvm-lto2 run %t1.bc \
; RUN: -r=%t1.bc,__a,lx \
; RUN: -r=%t1.bc,__b,l \
; RUN: -r=%t1.bc,a,plx \
; RUN: -r=%t1.bc,b,pl \
; RUN: -o %t2.o -save-temps
; Check that __a is kept as a weak def. __b can be dropped since its alias is
; not live and will also be dropped.
; RUN: llvm-dis %t2.o.1.1.promote.bc -o - | FileCheck %s
; CHECK: define weak hidden void @__a
; CHECK: declare hidden void @__b
; CHECK: declare void @b
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@a = hidden alias void (), ptr @__a
define weak hidden void @__a() {
entry:
ret void
}
@b = hidden alias void (), ptr @__b
define weak hidden void @__b() {
entry:
ret void
}