; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs --version 5
; RUN: opt -p mergefunc -S %s | FileCheck %s

; FIXME: Should not be merged with @call_mdtuple_arg_not_equal_2.
define i64 @call_mdtuple_arg_not_equal_1() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !0)
  ret i64 %r
}

define i64 @call_mdtuple_arg_not_equal_2() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !1)
  ret i64 %r
}

define i64 @call_mdtuple_arg_with_cycle_equal_1() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !2)
  ret i64 %r
}

define i64 @call_mdtuple_arg_with_cycle_equal_2() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !3)
  ret i64 %r
}

; FIXME: Should not be merged with @call_mdtuple_arg_with_cycle_not_equal_2.
define i64 @call_mdtuple_arg_with_cycle_not_equal_1() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !3)
  ret i64 %r
}

define i64 @call_mdtuple_arg_with_cycle_not_equal_2() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !4)
  ret i64 %r
}

define i64 @call_mdtuple_arg_equal_1() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !5)
  ret i64 %r
}

define i64 @call_mdtuple_arg_equal_2() {
  %r = call i64 @llvm.read_volatile_register.i64(metadata !6)
  ret i64 %r
}

declare i64 @llvm.read_volatile_register.i64(metadata)

!0 = !{!"foo"}
!1 = !{!"bar"}

!2 = distinct !{!2, !"foo"}
!3 = distinct !{!3, !"foo"}

!4 = distinct !{!4, !"bar"}

!5 = !{!"foo", i64 10}
!6 = !{!"foo", i64 10}
; CHECK-LABEL: define i64 @call_mdtuple_arg_with_cycle_equal_1() {
; CHECK-NEXT:    [[R:%.*]] = call i64 @llvm.read_volatile_register.i64(metadata [[META0:![0-9]+]])
; CHECK-NEXT:    ret i64 [[R]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_with_cycle_equal_2() {
; CHECK-NEXT:    [[R:%.*]] = call i64 @llvm.read_volatile_register.i64(metadata [[META1:![0-9]+]])
; CHECK-NEXT:    ret i64 [[R]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_with_cycle_not_equal_1() {
; CHECK-NEXT:    [[R:%.*]] = call i64 @llvm.read_volatile_register.i64(metadata [[META1]])
; CHECK-NEXT:    ret i64 [[R]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_with_cycle_not_equal_2() {
; CHECK-NEXT:    [[R:%.*]] = call i64 @llvm.read_volatile_register.i64(metadata [[META2:![0-9]+]])
; CHECK-NEXT:    ret i64 [[R]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_equal_1() {
; CHECK-NEXT:    [[R:%.*]] = call i64 @llvm.read_volatile_register.i64(metadata [[META3:![0-9]+]])
; CHECK-NEXT:    ret i64 [[R]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_not_equal_2() {
; CHECK-NEXT:    [[TMP1:%.*]] = tail call i64 @call_mdtuple_arg_equal_1()
; CHECK-NEXT:    ret i64 [[TMP1]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_not_equal_1() {
; CHECK-NEXT:    [[TMP1:%.*]] = tail call i64 @call_mdtuple_arg_equal_1()
; CHECK-NEXT:    ret i64 [[TMP1]]
;
;
; CHECK-LABEL: define i64 @call_mdtuple_arg_equal_2() {
; CHECK-NEXT:    [[TMP1:%.*]] = tail call i64 @call_mdtuple_arg_equal_1()
; CHECK-NEXT:    ret i64 [[TMP1]]
;
;.
; CHECK: [[META0]] = distinct !{[[META0]], !"foo"}
; CHECK: [[META1]] = distinct !{[[META1]], !"foo"}
; CHECK: [[META2]] = distinct !{[[META2]], !"bar"}
; CHECK: [[META3]] = !{!"foo", i64 10}
;.