llvm-project/llvm/test/tools/llvm-lto/thinlto.ll

; Test combined function index generation for ThinLTO via llvm-lto.
; RUN: llvm-as -function-summary %s -o %t.o
; RUN: llvm-as -function-summary %p/Inputs/thinlto.ll -o %t2.o
; RUN: llvm-lto -thinlto -o %t3 %t.o %t2.o
; RUN: llvm-bcanalyzer -dump %t3.thinlto.bc | FileCheck %s --check-prefix=COMBINED
; RUN: not test -e %t3

; COMBINED: <MODULE_STRTAB_BLOCK
; COMBINED-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto.ll.tmp{{.*}}.o'
; COMBINED-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto.ll.tmp{{.*}}.o'
; COMBINED-NEXT: </MODULE_STRTAB_BLOCK
; COMBINED-NEXT: <FUNCTION_SUMMARY_BLOCK
; COMBINED-NEXT: <COMBINED_ENTRY
; COMBINED-NEXT: <COMBINED_ENTRY
; COMBINED-NEXT: </FUNCTION_SUMMARY_BLOCK
; COMBINED-NEXT: <VALUE_SYMTAB
; Check that the format is: op0=offset, op1=funcguid, where funcguid is
; the lower 64 bits of the function name MD5.
; COMBINED-NEXT: <COMBINED_FNENTRY abbrevid={{[0-9]+}} op0={{[0-9]+}} op1={{-3706093650706652785|-5300342847281564238}}
; COMBINED-NEXT: <COMBINED_FNENTRY abbrevid={{[0-9]+}} op0={{[0-9]+}} op1={{-3706093650706652785|-5300342847281564238}}
; COMBINED-NEXT: </VALUE_SYMTAB

define void @f() {
entry:
  ret void
}