forked from OSchip/llvm-project
59 lines
1.8 KiB
LLVM
59 lines
1.8 KiB
LLVM
; Function import can promote an internal function to external but not mark it as prevailing.
|
|
; Given that the internal function's attributes would have already propagated to its callers
|
|
; that are part of the import chain there's no need to actually propagate off this copy as
|
|
; propagating the caller performs the same thing.
|
|
; RUN: split-file %s %t
|
|
; RUN: opt -thinlto-bc %t/main.ll -thin-link-bitcode-file=%t1.thinlink.bc -o %t1.bc
|
|
; RUN: opt -thinlto-bc %t/callees.ll -thin-link-bitcode-file=%t2.thinlink.bc -o %t2.bc
|
|
; RUN: llvm-lto2 run -disable-thinlto-funcattrs=0 \
|
|
; RUN: %t1.bc %t2.bc -o %t.o \
|
|
; RUN: -r %t1.bc,caller,l -r %t1.bc,caller_noattr,l -r %t1.bc,importer,px -r %t1.bc,importer_noattr,px \
|
|
; RUN: -r %t2.bc,caller,px -r %t2.bc,caller_noattr,px \
|
|
; RUN: -save-temps
|
|
; RUN: llvm-dis -o - %t.o.1.3.import.bc | FileCheck %s --match-full-lines
|
|
|
|
;--- main.ll
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
declare void @caller()
|
|
declare void @caller_noattr()
|
|
|
|
; CHECK: define void @importer() [[ATTR_PROP:#[0-9]+]] {
|
|
define void @importer() {
|
|
call void @caller()
|
|
ret void
|
|
}
|
|
|
|
; If somehow the caller doesn't get the attributes, we
|
|
; shouldn't propagate from the internal callee.
|
|
; CHECK: define void @importer_noattr() {
|
|
define void @importer_noattr() {
|
|
call void @caller_noattr()
|
|
ret void
|
|
}
|
|
|
|
; CHECK: define available_externally hidden void @callee{{.*}}
|
|
|
|
; CHECK-DAG: attributes [[ATTR_PROP]] = { norecurse nounwind }
|
|
|
|
;--- callees.ll
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
attributes #0 = { nounwind norecurse }
|
|
|
|
define void @caller() #0 {
|
|
call void @callee()
|
|
ret void
|
|
}
|
|
|
|
define void @caller_noattr() {
|
|
call void @callee()
|
|
ret void
|
|
}
|
|
|
|
define internal void @callee() #0 {
|
|
ret void
|
|
}
|