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1; RUN: split-file %s %t2; RUN: opt -module-summary %t/a.ll -o %ta.bc3; RUN: opt -module-summary %t/b.ll -o %tb.bc4 5;; Test visibility propagation. The prevailing definitions are all from %tb.bc.6; RUN: llvm-lto2 run -save-temps -enable-import-metadata -o %t1.bc %ta.bc %tb.bc \7; RUN: -r=%ta.bc,var1,l -r=%ta.bc,var2,l \8; 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 \9; RUN: -r=%ta.bc,protected_def_hidden_ref,l -r=%ta.bc,not_imported,l -r=%ta.bc,hidden_def_ref,l \10; RUN: -r=%ta.bc,hidden_def_weak_ref,l \11; RUN: -r=%ta.bc,ext, -r=%ta.bc,main,plx \12; RUN: -r=%tb.bc,var1,plx -r=%tb.bc,var2,plx \13; 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 \14; RUN: -r=%tb.bc,protected_def_hidden_ref,pl -r=%tb.bc,not_imported,pl -r=%tb.bc,hidden_def_ref,pl \15; RUN: -r=%tb.bc,hidden_def_weak_ref,pl16; RUN: llvm-dis < %t1.bc.1.3.import.bc | FileCheck %s17 18;; %tb.bc does not import anything, so we just check 1.promote.19; RUN: llvm-dis < %t1.bc.2.1.promote.bc | FileCheck %s --check-prefix=CHECK220 21;--- a.ll22target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"23target triple = "x86_64-unknown-linux-gnu"24 25; CHECK: @var1 = external hidden global i32, align 426; CHECK-NEXT: @var2 = available_externally hidden global i32 1, align 427 28@var1 = weak global i32 1, align 429@var2 = extern_weak global i3230 31declare void @ext(ptr)32 33; CHECK: declare hidden i32 @hidden_def_weak_def()34; CHECK: declare protected void @protected_def_weak_def()35; CHECK: declare hidden void @protected_def_weak_hidden_def()36;; Currently the visibility is not propagated onto an unimported function,37;; because we don't have summaries for declarations.38; CHECK: declare extern_weak void @not_imported()39; CHECK: define available_externally hidden void @hidden_def_ref() !thinlto_src_module !0 !thinlto_src_file !140; CHECK: define available_externally hidden void @hidden_def_weak_ref() !thinlto_src_module !0 !thinlto_src_file !141;; This can be hidden, but we cannot communicate the declaration's visibility42;; to other modules because declarations don't have summaries, and the IRLinker43;; overrides it when importing the protected def.44; CHECK: define available_externally protected void @protected_def_hidden_ref() !thinlto_src_module !0 !thinlto_src_file !145 46; CHECK2: define hidden i32 @hidden_def_weak_def()47; CHECK2: define protected void @protected_def_weak_def()48; CHECK2: define hidden void @protected_def_weak_hidden_def()49; CHECK2: define hidden void @hidden_def_ref()50; CHECK2: define hidden void @hidden_def_weak_ref()51; CHECK2: define protected void @protected_def_hidden_ref()52; CHECK2: define hidden void @not_imported()53 54define weak i32 @hidden_def_weak_def() {55entry:56 %0 = load i32, ptr @var257 ret i32 %058}59 60define weak void @protected_def_weak_def() {61entry:62 ret void63}64 65define weak hidden void @protected_def_weak_hidden_def() {66entry:67 ret void68}69 70declare extern_weak void @not_imported()71 72declare void @hidden_def_ref()73declare extern_weak void @hidden_def_weak_ref()74declare hidden void @protected_def_hidden_ref()75 76define i32 @main() {77entry:78 call void @ext(ptr @hidden_def_weak_def)79 call void @ext(ptr @protected_def_weak_def)80 call void @ext(ptr @protected_def_weak_hidden_def)81 call void @ext(ptr @hidden_def_ref)82 call void @ext(ptr @hidden_def_weak_ref)83 call void @ext(ptr @protected_def_hidden_ref)84 call void @ext(ptr @not_imported)85 86 ;; Calls ensure the functions are imported.87 call i32 @hidden_def_weak_def()88 call void @protected_def_weak_def()89 call void @protected_def_weak_hidden_def()90 call void @hidden_def_ref()91 call void @hidden_def_weak_ref()92 call void @protected_def_hidden_ref()93 ret i32 094}95 96;--- b.ll97target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"98target triple = "x86_64-unknown-linux-gnu"99 100@var1 = hidden global i32 1, align 4101@var2 = hidden global i32 1, align 4102 103define hidden i32 @hidden_def_weak_def() {104entry:105 %0 = load i32, ptr @var1106 ret i32 %0107}108 109define protected void @protected_def_weak_def() {110entry:111 ret void112}113 114define protected void @protected_def_weak_hidden_def() {115entry:116 ret void117}118 119define hidden void @hidden_def_ref() {120entry:121 ret void122}123 124define hidden void @hidden_def_weak_ref() {125entry:126 ret void127}128 129define protected void @protected_def_hidden_ref() {130entry:131 ret void132}133 134define hidden void @not_imported() {135entry:136 ret void137}138