1; RUN: opt -S -mergefunc < %s | FileCheck %s
2
3; Replacments should be totally ordered on the function name.
4; If we don't do this we  can end up with one module defining a thunk for @funA
5; and another module defining a thunk for @funB.
6;
7; The problem with this is that the linker could then choose these two stubs
8; each of the two modules and we end up with two stubs calling each other.
9
10; CHECK-LABEL: define linkonce_odr i32 @funA
11; CHECK-NEXT:    add
12; CHECK:         ret
13
14; CHECK-LABEL: define linkonce_odr i32 @funB
15; CHECK-NEXT:    tail call i32 @funA(i32 %0, i32 %1)
16; CHECK-NEXT:    ret
17
18define linkonce_odr i32 @funB(i32 %x, i32 %y) {
19  %sum = add i32 %x, %y
20  %sum2 = add i32 %x, %sum
21  %sum3 = add i32 %x, %sum2
22  ret i32 %sum3
23}
24
25define linkonce_odr i32 @funA(i32 %x, i32 %y) {
26  %sum = add i32 %x, %y
27  %sum2 = add i32 %x, %sum
28  %sum3 = add i32 %x, %sum2
29  ret i32 %sum3
30}
31