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; 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
}
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