| ; RUN: split-file %s %t |
| ; RUN: opt -module-summary %t/a.ll -o %ta.bc |
| ; RUN: opt -module-summary %t/b.ll -o %tb.bc |
| |
| ;; Test visibility propagation. The prevailing definitions are all from %tb.bc. |
| ; RUN: llvm-lto2 run -save-temps -enable-import-metadata -o %t1.bc %ta.bc %tb.bc \ |
| ; RUN: -r=%ta.bc,_var1,l -r=%ta.bc,_var2,l \ |
| ; RUN: -r=%ta.bc,_hidden_def_weak_def,l -r=%ta.bc,_not_imported,l -r=%ta.bc,_hidden_def_ref,l \ |
| ; RUN: -r=%ta.bc,_hidden_def_weak_ref,l \ |
| ; RUN: -r=%ta.bc,_ext, -r=%ta.bc,_main,plx \ |
| ; RUN: -r=%tb.bc,_var1,plx -r=%tb.bc,_var2,plx \ |
| ; RUN: -r=%tb.bc,_hidden_def_weak_def,pl -r=%tb.bc,_not_imported,pl -r=%tb.bc,_hidden_def_ref,pl \ |
| ; RUN: -r=%tb.bc,_hidden_def_weak_ref,pl |
| ; RUN: llvm-dis < %t1.bc.1.3.import.bc | FileCheck %s |
| ; RUN: llvm-dis < %t1.bc.2.1.promote.bc | FileCheck %s --check-prefix=CHECK2 |
| |
| ;--- a.ll |
| target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.15.0" |
| |
| ; CHECK: @var1 = external hidden global i32, align 4 |
| ; CHECK-NEXT: @var2 = available_externally hidden global i32 1, align 4 |
| |
| @var1 = weak global i32 1, align 4 |
| @var2 = extern_weak global i32 |
| |
| declare void @ext(void ()*) |
| |
| ; CHECK: declare hidden i32 @hidden_def_weak_def() |
| ;; Currently the visibility is not propagated onto an unimported function, |
| ;; because we don't have summaries for declarations. |
| ; CHECK: declare extern_weak dso_local void @not_imported() |
| ; CHECK: define available_externally hidden void @hidden_def_ref() !thinlto_src_module !0 |
| ; CHECK: define available_externally hidden void @hidden_def_weak_ref() !thinlto_src_module !0 |
| |
| ; CHECK2: define hidden i32 @hidden_def_weak_def() |
| ; CHECK2: define hidden void @hidden_def_ref() |
| ; CHECK2: define hidden void @hidden_def_weak_ref() |
| ; CHECK2: define hidden void @not_imported() |
| |
| define weak i32 @hidden_def_weak_def() { |
| entry: |
| %0 = load i32, i32* @var2 |
| ret i32 %0 |
| } |
| |
| declare extern_weak void @not_imported() |
| |
| declare void @hidden_def_ref() |
| declare extern_weak void @hidden_def_weak_ref() |
| |
| define i32 @main() { |
| entry: |
| call void @ext(void ()* bitcast (i32 ()* @hidden_def_weak_def to void ()*)) |
| call void @ext(void ()* @hidden_def_ref) |
| call void @ext(void ()* @hidden_def_weak_ref) |
| call void @ext(void ()* @not_imported) |
| |
| ;; Calls ensure the functions are imported. |
| call i32 @hidden_def_weak_def() |
| call void @hidden_def_ref() |
| call void @hidden_def_weak_ref() |
| ret i32 0 |
| } |
| |
| ;--- b.ll |
| target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.15.0" |
| |
| @var1 = hidden global i32 1, align 4 |
| @var2 = hidden global i32 1, align 4 |
| |
| define hidden i32 @hidden_def_weak_def() { |
| entry: |
| %0 = load i32, i32* @var1 |
| ret i32 %0 |
| } |
| |
| define hidden void @hidden_def_ref() { |
| entry: |
| ret void |
| } |
| |
| define hidden void @hidden_def_weak_ref() { |
| entry: |
| ret void |
| } |
| |
| define hidden void @not_imported() { |
| entry: |
| ret void |
| } |