| ; RUN: llvm-link %s %S/Inputs/alias.ll -S -o - | FileCheck --check-prefix=C1 %s |
| ; RUN: llvm-link %S/Inputs/alias.ll %s -S -o - | FileCheck --check-prefix=C2 %s |
| |
| ; FIXME: |
| ; The C1 direction is incorrect. |
| ; When moving an alias to an existing module and we want to discard the aliasee |
| ; (the C2 case), the IRMover knows to copy the aliasee as internal. |
| ; When moving a replacement to an aliasee to a module that has an alias (C1), |
| ; a replace all uses with blindly changes the alias. |
| ; The C1 case doesn't happen when using a system linker with a plugin because |
| ; the linker does full symbol resolution first. |
| ; Given that this is a problem only with llvm-link and its 1 module at a time |
| ; linking, it should probably learn to changes the aliases in the destination |
| ; before using the IRMover. |
| |
| @foo = weak global i32 0 |
| ; C1-DAG: @foo = alias i32, ptr @zed |
| ; C2-DAG: @foo = alias i32, ptr @zed |
| |
| @bar = alias i32, ptr @foo |
| ; C1-DAG: @bar = alias i32, ptr @foo |
| |
| ; C2-DAG: @foo.1 = internal global i32 0 |
| ; C2-DAG: @bar = alias i32, ptr @foo.1 |
| |
| @foo2 = weak global i32 0 |
| ; C1-DAG: @foo2 = alias i16, ptr @zed |
| ; C2-DAG: @foo2 = alias i16, ptr @zed |
| |
| @bar2 = alias i32, ptr @foo2 |
| ; C1-DAG: @bar2 = alias i32, ptr @foo2 |
| |
| ; C2-DAG: @foo2.2 = internal global i32 0 |
| ; C2-DAG: @bar2 = alias i32, ptr @foo2.2 |
| |
| ; C1-DAG: @zed = global i32 42 |
| ; C2-DAG: @zed = global i32 42 |