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