1; RUN: rm -rf %t && split-file %s %t 2; RUN: llvm-link %t/1.ll -S -o - | FileCheck %s --check-prefix=CHECK1 3;; The source doesn't have comdat. 4; RUN: llvm-link %t/2.ll -S -o - | FileCheck %s --check-prefix=CHECK2 5 6;; The leader is an alias. 7; RUN: llvm-link %t/3.ll %t/3-aux.ll -S -o - | FileCheck %s 8; RUN: llvm-link %t/3-aux.ll %t/3.ll -S -o - | FileCheck %s 9 10;--- 1.ll 11$c = comdat any 12@a = alias void (), ptr @f 13define internal void @f() comdat($c) { 14 ret void 15} 16 17; CHECK1-DAG: $c = comdat any 18; CHECK1-DAG: @a = alias void (), ptr @f 19; CHECK1-DAG: define internal void @f() comdat($c) 20 21$f2 = comdat largest 22define linkonce_odr void @f2() comdat($f2) { 23 ret void 24} 25define void @f3() comdat($f2) { 26 ret void 27} 28 29; CHECK1-DAG: $f2 = comdat largest 30; CHECK1-DAG: define linkonce_odr void @f2() 31 32;--- 2.ll 33$c = comdat largest 34 35; CHECK2: @c = global i32 0, comdat 36@c = global i32 0, comdat 37 38;--- 3.ll 39target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" 40 41$foo = comdat largest 42@foo = linkonce_odr unnamed_addr constant [1 x ptr] [ptr @bar], comdat($foo) 43 44; CHECK: @foo = alias ptr, getelementptr ([2 x ptr], ptr @some_name, i32 0, i32 1) 45 46declare void @bar() unnamed_addr 47 48;--- 3-aux.ll 49target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" 50 51$foo = comdat largest 52 53@zed = external constant i8 54@some_name = private unnamed_addr constant [2 x ptr] [ptr @zed, ptr @bar], comdat($foo) 55@foo = alias ptr, getelementptr([2 x ptr], ptr @some_name, i32 0, i32 1) 56 57declare void @bar() unnamed_addr 58