1; Test to check the callgraph in summary 2; RUN: opt -write-relbf-to-summary -module-summary %s -o %t.o 3; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s 4; RUN: llvm-dis -o - %t.o | FileCheck %s --check-prefix=DIS 5; Round trip it through llvm-as 6; RUN: llvm-dis -o - %t.o | llvm-as -write-relbf-to-summary -o - | llvm-dis -o - | FileCheck %s --check-prefix=DIS 7 8; CHECK: <SOURCE_FILENAME 9; CHECK-NEXT: <GLOBALVAR 10; CHECK-NEXT: <FUNCTION 11; "func" 12; CHECK-NEXT: <FUNCTION op0=17 op1=4 13; CHECK: <GLOBALVAL_SUMMARY_BLOCK 14; CHECK-NEXT: <VERSION 15; See if the call to func is registered. 16; CHECK-NEXT: <PERMODULE_RELBF {{.*}} op4=1 {{.*}} op7=256 17; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK> 18; CHECK: <STRTAB_BLOCK 19; CHECK-NEXT: blob data = 'undefinedglobmainfunc{{.*}}' 20 21 22; ModuleID = 'thinlto-function-summary-callgraph.ll' 23target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 24target triple = "x86_64-unknown-linux-gnu" 25 26; Function Attrs: nounwind uwtable 27define i32 @main() #0 { 28entry: 29 call void (...) @func() 30 %u = load i32, i32* @undefinedglob 31 ret i32 %u 32} 33 34declare void @func(...) #1 35@undefinedglob = external global i32 36 37; OLD: Index {{.*}} contains 1 nodes (1 functions, 0 alias, 0 globals) and 1 edges (0 refs and 1 calls) 38 39; DIS: ^0 = module: (path: "{{.*}}", hash: (0, 0, 0, 0, 0)) 40; DIS: ^1 = gv: (name: "func") ; guid = 7289175272376759421 41; DIS: ^2 = gv: (name: "main", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0), insts: 3, calls: ((callee: ^1, relbf: 256)), refs: (^3)))) ; guid = 15822663052811949562 42; DIS: ^3 = gv: (name: "undefinedglob") ; guid = 18036901804029949403 43