1; RUN: opt -module-summary %s -o %t1.bc 2; RUN: opt -module-summary %p/Inputs/index-const-prop-define-g.ll -o %t2.bc 3; RUN: llvm-lto2 run -save-temps %t2.bc -r=%t2.bc,g,pl \ 4; RUN: %t1.bc -r=%t1.bc,main,plx -r=%t1.bc,foo,pl -r=%t1.bc,g, -o %t3 5; RUN: llvm-dis %t3.2.3.import.bc -o - | FileCheck %s 6 7; Dead globals are converted to declarations by ThinLTO in dropDeadSymbols 8; If we try to internalize such we'll get a broken module. 9; CHECK: @g = external global i32 10 11target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 12target triple = "x86_64-unknown-linux-gnu" 13 14@g = external global i32 15 16; We need at least one live symbol to enable dead stripping 17; Otherwise ModuleSummaryIndex::isGlobalValueLive will always 18; return true. 19define i32 @main() { 20 ret i32 42 21} 22 23define i32 @foo() { 24 %v = load i32, ptr @g 25 ret i32 %v 26} 27