1 ; This test ensures that we drop the preempted copy of @f/@g from %t2.bc from their
2 ; comdats after making it available_externally. If not we would get a
3 ; verification error. g_internal/g_private are changed to available_externally
4 ; as well since it is in the same comdat of g.
5 ; RUN: opt -module-summary %s -o %t1.bc
6 ; RUN: opt -module-summary %p/Inputs/linkonce_resolution_comdat.ll -o %t2.bc
7 ; RUN: llvm-lto -thinlto-action=run -disable-thinlto-funcattrs=0 %t1.bc %t2.bc -exported-symbol=f -exported-symbol=g -exported-symbol=h -thinlto-save-temps=%t3.
9 ; RUN: llvm-dis %t3.0.3.imported.bc -o - | FileCheck %s --check-prefix=IMPORT1
10 ; RUN: llvm-dis %t3.1.3.imported.bc -o - | FileCheck %s --check-prefix=IMPORT2
11 ; Copy from first module is prevailing and converted to weak_odr, copy
12 ; from second module is preempted and converted to available_externally and
13 ; removed from comdat.
14 ; IMPORT1: @g_private = private global i32 43, comdat($g)
15 ; IMPORT1: define weak_odr i32 @f(ptr %0) unnamed_addr [[ATTR:#[0-9]+]] comdat {
16 ; IMPORT1: define weak_odr i32 @g() unnamed_addr [[ATTR]] comdat {
17 ; IMPORT1: define internal void @g_internal() unnamed_addr comdat($g) {
19 ; IMPORT2: @g_private = available_externally dso_local global i32 41{{$}}
20 ; IMPORT2: define available_externally i32 @f(ptr %0) unnamed_addr [[ATTR:#[0-9]+]] {
21 ; IMPORT2: define available_externally i32 @g() unnamed_addr [[ATTR]] {
22 ; IMPORT2: define available_externally dso_local void @g_internal() unnamed_addr {
24 ; CHECK-DAG: attributes [[ATTR]] = { norecurse nounwind }
26 ; RUN: llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=NM1
30 ; RUN: llvm-nm %t2.bc.thinlto.o | FileCheck %s --check-prefix=NM2
31 ; f() would have been turned into available_externally since it is preempted,
32 ; and inlined into h()
36 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
37 target triple = "x86_64-unknown-linux-gnu"
42 @g_private = private global i32 43, comdat($g)
44 define linkonce_odr i32 @f(ptr) unnamed_addr comdat {
48 define linkonce_odr i32 @g() unnamed_addr comdat {
52 define internal void @g_internal() unnamed_addr comdat($g) {