| ; RUN: llvm-as %s -o %t.o |
| ; RUN: %ld64 -lto_library %llvmshlibdir/libLTO.dylib -dylib -arch x86_64 -macosx_version_min 10.10.0 -o %t.dylib %t.o -save-temps -undefined dynamic_lookup -exported_symbol _c -exported_symbol _b -exported_symbol _GlobLinkonce -lSystem |
| |
| ; RUN: llvm-dis %t.dylib.lto.opt.bc -o - | FileCheck --check-prefix=IR %s |
| ; check that @a is no longer a linkonce_odr definition |
| ; IR-NOT: define linkonce_odr void @a() |
| ; check that @b is appended in llvm.used |
| ; IR: @llvm.compiler.used = appending global [2 x i8*] [i8* bitcast ([1 x i8*]* @GlobLinkonce to i8*), i8* bitcast (void ()* @b to i8*)], section "llvm.metadata" |
| |
| ; RUN: llvm-nm %t.dylib | FileCheck --check-prefix=NM %s |
| ; check that the linker can hide @a but not @b, nor @GlobLinkonce |
| ; NM: S _GlobLinkonce |
| ; NM: t _a |
| ; NM: T _b |
| ; NM: T _c |
| |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.10.0" |
| |
| declare void @external() |
| |
| @GlobLinkonce = linkonce_odr unnamed_addr constant [1 x i8*] [i8* null], align 8 |
| |
| define linkonce_odr void @a() noinline { |
| %use_of_GlobLinkonce = load [1 x i8*], [1 x i8*] *@GlobLinkonce |
| call void @external() |
| ret void |
| } |
| |
| define linkonce_odr void @b() { |
| ret void |
| } |
| |
| define void()* @c() { |
| call void @a() |
| ret void()* @b |
| } |