diff --git a/llvm/test/ThinLTO/X86/visibility-elf.ll b/llvm/test/ThinLTO/X86/visibility-elf.ll new file mode 100644 --- /dev/null +++ b/llvm/test/ThinLTO/X86/visibility-elf.ll @@ -0,0 +1,123 @@ +; 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 -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,protected_def_weak_def,l -r=%ta.bc,protected_def_weak_hidden_def,l \ +; RUN: -r=%ta.bc,protected_def_hidden_ref,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,protected_def_weak_def,pl -r=%tb.bc,protected_def_weak_hidden_def,pl \ +; RUN: -r=%tb.bc,protected_def_hidden_ref,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 + +;--- a.ll +target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-grtev4-linux-gnu" + +; CHECK: @var1 = external 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 i32 @hidden_def_weak_def() +; CHECK: declare void @protected_def_weak_def() +; CHECK: declare hidden void @protected_def_weak_hidden_def() +;; Currently the visibility is not propagated for an unimported function. +; CHECK: declare extern_weak 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 +;; This can be hidden. +; CHECK: define available_externally protected void @protected_def_hidden_ref() !thinlto_src_module !0 + +define weak i32 @hidden_def_weak_def() { +entry: + %0 = load i32, i32* @var2 + ret i32 %0 +} + +define weak void @protected_def_weak_def() { +entry: + ret void +} + +define weak hidden void @protected_def_weak_hidden_def() { +entry: + ret void +} + +declare extern_weak void @not_imported() + +declare void @hidden_def_ref() +declare extern_weak void @hidden_def_weak_ref() +declare hidden void @protected_def_hidden_ref() + +define i32 @main() { +entry: + call void @ext(void ()* bitcast (i32 ()* @hidden_def_weak_def to void ()*)) + call void @ext(void ()* @protected_def_weak_def) + call void @ext(void ()* @protected_def_weak_hidden_def) + call void @ext(void ()* @hidden_def_ref) + call void @ext(void ()* @hidden_def_weak_ref) + call void @ext(void ()* @protected_def_hidden_ref) + call void @ext(void ()* @not_imported) + + ;; Calls ensure the functions are imported. + call i32 @hidden_def_weak_def() + call void @protected_def_weak_def() + call void @protected_def_weak_hidden_def() + call void @hidden_def_ref() + call void @hidden_def_weak_ref() + call void @protected_def_hidden_ref() + ret i32 0 +} + +;--- b.ll +target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-grtev4-linux-gnu" + +@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 protected void @protected_def_weak_def() { +entry: + ret void +} + +define protected void @protected_def_weak_hidden_def() { +entry: + ret void +} + +define hidden void @hidden_def_ref() { +entry: + ret void +} + +define hidden void @hidden_def_weak_ref() { +entry: + ret void +} + +define protected void @protected_def_hidden_ref() { +entry: + ret void +} + +define hidden void @not_imported() { +entry: + ret void +} diff --git a/llvm/test/ThinLTO/X86/visibility-macho.ll b/llvm/test/ThinLTO/X86/visibility-macho.ll new file mode 100644 --- /dev/null +++ b/llvm/test/ThinLTO/X86/visibility-macho.ll @@ -0,0 +1,85 @@ +; 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 -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 + +;--- 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 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 i32 @hidden_def_weak_def() +;; Currently the visibility is not propagated for an unimported function. +; 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 + +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 +}