1bf46e741SEugene Leviant; RUN: opt -module-summary %s -o %t1.bc 2bf46e741SEugene Leviant; RUN: opt -module-summary %p/Inputs/index-const-prop-define-g.ll -o %t2.bc 3bf46e741SEugene Leviant; RUN: llvm-lto2 run -save-temps %t2.bc -r=%t2.bc,g,pl \ 4bf46e741SEugene Leviant; RUN: %t1.bc -r=%t1.bc,main,plx -r=%t1.bc,foo,pl -r=%t1.bc,g, -o %t3 5bf46e741SEugene Leviant; RUN: llvm-dis %t3.2.3.import.bc -o - | FileCheck %s 6bf46e741SEugene Leviant 7bf46e741SEugene Leviant; Dead globals are converted to declarations by ThinLTO in dropDeadSymbols 8bf46e741SEugene Leviant; If we try to internalize such we'll get a broken module. 9d2ef8c1fSFangrui Song; CHECK: @g = external global i32 10bf46e741SEugene Leviant 117b1d7937SAmy Huangtarget datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 12bf46e741SEugene Levianttarget triple = "x86_64-unknown-linux-gnu" 13bf46e741SEugene Leviant 14bf46e741SEugene Leviant@g = external global i32 15bf46e741SEugene Leviant 16bf46e741SEugene Leviant; We need at least one live symbol to enable dead stripping 17bf46e741SEugene Leviant; Otherwise ModuleSummaryIndex::isGlobalValueLive will always 18bf46e741SEugene Leviant; return true. 19bf46e741SEugene Leviantdefine i32 @main() { 20bf46e741SEugene Leviant ret i32 42 21bf46e741SEugene Leviant} 22bf46e741SEugene Leviant 23bf46e741SEugene Leviantdefine i32 @foo() { 24*d5d3eb16SFangrui Song %v = load i32, ptr @g 25bf46e741SEugene Leviant ret i32 %v 26bf46e741SEugene Leviant} 27