1;; The constructor alias example is reduced from 2;; 3;; template <typename T> 4;; struct A { A() {} virtual ~A() {} }; 5;; template struct A<void>; 6;; ptr foo() { return new A<void>; } 7;; 8;; clang -c -fpic -O1 -flto=thin a.cc && cp a.o b.o && ld.lld -shared a.o b.so 9 10; RUN: opt -module-summary %s -o %t1.bc 11; RUN: cp %t1.bc %t2.bc 12; RUN: llvm-lto2 run %t1.bc %t2.bc -r=%t1.bc,_ZTV1A,pl -r=%t1.bc,_ZN1AD0Ev,pl -r=%t1.bc,_ZN1AD1Ev,pl -r=%t1.bc,_ZN1AD2Ev,pl -r=%t1.bc,D1_a,pl -r=%t1.bc,D1_a_a,pl \ 13; RUN: -r=%t2.bc,_ZTV1A,l -r=%t2.bc,_ZN1AD0Ev,l -r=%t2.bc,_ZN1AD1Ev,l -r=%t2.bc,_ZN1AD2Ev,l -r=%t2.bc,D1_a,l -r=%t2.bc,D1_a_a,l -o %t3 --save-temps 14; RUN: llvm-dis < %t3.2.1.promote.bc | FileCheck %s 15 16; CHECK: @_ZTV1A = available_externally dso_local unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr @_ZN1AD1Ev, ptr @_ZN1AD0Ev] } 17; CHECK: @D1_a = weak_odr dso_local unnamed_addr alias void (ptr), ptr @_ZN1AD1Ev 18; CHECK: @_ZN1AD1Ev = weak_odr dso_local unnamed_addr alias void (ptr), ptr @_ZN1AD2Ev 19; CHECK: @D1_a_a = weak_odr dso_local unnamed_addr alias void (ptr), ptr @D1_a 20; CHECK: define weak_odr dso_local void @_ZN1AD2Ev(ptr noundef nonnull %0) unnamed_addr comdat($_ZN1AD5Ev) { 21; CHECK: define available_externally dso_local void @_ZN1AD0Ev(ptr noundef nonnull %0) unnamed_addr { 22 23target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 24target triple = "x86_64-unknown-linux-gnu" 25 26$_ZN1AD5Ev = comdat any 27$_ZTV1A = comdat any 28 29@_ZTV1A = weak_odr unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr @_ZN1AD1Ev, ptr @_ZN1AD0Ev] }, comdat 30 31@D1_a = weak_odr unnamed_addr alias void (ptr), ptr @_ZN1AD1Ev 32@_ZN1AD1Ev = weak_odr unnamed_addr alias void (ptr), ptr @_ZN1AD2Ev 33@D1_a_a = weak_odr unnamed_addr alias void (ptr), ptr @D1_a 34 35define weak_odr void @_ZN1AD2Ev(ptr noundef nonnull %0) unnamed_addr comdat($_ZN1AD5Ev) { 36 ret void 37} 38 39define weak_odr void @_ZN1AD0Ev(ptr noundef nonnull %0) unnamed_addr comdat($_ZN1AD5Ev) { 40 call void @D1_a(ptr noundef nonnull %0) 41 call void @D1_a_a(ptr noundef nonnull %0) 42 call void @_ZN1AD1Ev(ptr noundef nonnull %0) 43 ret void 44} 45