1; RUN: rm -rf %t && split-file %s %t && cd %t 2; RUN: opt -module-summary 1.ll -o 1.bc 3; RUN: opt -module-summary 2.ll -o 2.bc 4; RUN: llvm-lto -thinlto -o 3 1.bc 2.bc 5; RUN: opt -S -passes=function-import -summary-file 3.thinlto.bc 1.bc 2>&1 | FileCheck %s 6 7; CHECK: Function Import: link error: linking module flags 'Error': IDs have conflicting values: 'i32 1' from 2.bc, and 'i32 0' from 1.bc 8 9;--- 1.ll 10target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 11target triple = "x86_64-unknown-linux-gnu" 12 13define i32 @main() { 14entry: 15 call void () @foo() 16 ret i32 0 17} 18 19declare void @foo() 20 21!llvm.module.flags = !{!0} 22!0 = !{i32 1, !"Error", i32 0} 23 24;--- 2.ll 25target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 26target triple = "x86_64-unknown-linux-gnu" 27 28define void @foo() { 29 ret void 30} 31 32!llvm.module.flags = !{!0} 33!0 = !{i32 1, !"Error", i32 1} 34