1 ; RUN: llvm-link %s %S/Inputs/alias.ll -S -o - | FileCheck --check-prefix=C1 %s 2 ; RUN: llvm-link %S/Inputs/alias.ll %s -S -o - | FileCheck --check-prefix=C2 %s 3 4 ; FIXME: 5 ; The C1 direction is incorrect. 6 ; When moving an alias to an existing module and we want to discard the aliasee 7 ; (the C2 case), the IRMover knows to copy the aliasee as internal. 8 ; When moving a replacement to an aliasee to a module that has an alias (C1), 9 ; a replace all uses with blindly changes the alias. 10 ; The C1 case doesn't happen when using a system linker with a plugin because 11 ; the linker does full symbol resolution first. 12 ; Given that this is a problem only with llvm-link and its 1 module at a time 13 ; linking, it should probably learn to changes the aliases in the destination 14 ; before using the IRMover. 15 16 @foo = weak global i32 0 17 ; C1-DAG: @foo = alias i32, i32* @zed 18 ; C2-DAG: @foo = alias i32, i32* @zed 19 20 @bar = alias i32, i32* @foo 21 ; C1-DAG: @bar = alias i32, i32* @foo 22 23 ; C2-DAG: @foo.1 = internal global i32 0 24 ; C2-DAG: @bar = alias i32, i32* @foo.1 25 26 @foo2 = weak global i32 0 27 ; C1-DAG: @foo2 = alias i16, bitcast (i32* @zed to i16*) 28 ; C2-DAG: @foo2 = alias i16, bitcast (i32* @zed to i16*) 29 30 @bar2 = alias i32, i32* @foo2 31 ; C1-DAG: @bar2 = alias i32, bitcast (i16* @foo2 to i32*) 32 33 ; C2-DAG: @foo2.2 = internal global i32 0 34 ; C2-DAG: @bar2 = alias i32, i32* @foo2.2 35 36 ; C1-DAG: @zed = global i32 42 37 ; C2-DAG: @zed = global i32 42 38
