1; RUN: opt -module-summary %s -o %t.o 2; RUN: opt -module-summary %p/Inputs/thinlto_weak_resolution.ll -o %t2.o 3 4; Verify that prevailing weak for linker symbol is kept. 5; Note that gold picks the first copy of a function as the prevailing one, 6; so listing %t.o first is sufficient to ensure that its copies are prevailing. 7; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \ 8; RUN: --plugin-opt=thinlto \ 9; RUN: --plugin-opt=save-temps \ 10; RUN: -shared \ 11; RUN: -o %t3.o %t.o %t2.o 12 13; RUN: llvm-nm %t3.o | FileCheck %s 14; CHECK: weakfunc 15 16; All of the preempted functions should have been eliminated (the plugin will 17; not link them in). 18; RUN: llvm-dis %t2.o.opt.bc -o - | FileCheck --check-prefix=OPT2 %s 19; OPT2-NOT: @ 20 21; RUN: llvm-dis %t.o.opt.bc -o - | FileCheck --check-prefix=OPT %s 22 23target triple = "x86_64-unknown-linux-gnu" 24 25 26define i32 @main() #0 { 27entry: 28 call void @linkonceodralias() 29 call void @linkoncealias() 30 call void @linkonceodrfuncwithalias() 31 call void @linkoncefuncwithalias() 32 call void @linkonceodrfunc() 33 call void @linkoncefunc() 34 call void @weakodrfunc() 35 call void @weakfunc() 36 call void @linkonceodrfuncInSingleModule() 37 ret i32 0 38} 39 40; Alias are resolved 41; OPT: @linkonceodralias = weak_odr alias void (), void ()* @linkonceodrfuncwithalias 42@linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias 43 44; Alias are resolved 45; OPT: @linkoncealias = weak alias void (), void ()* @linkoncefuncwithalias 46@linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias 47 48; Function with an alias are not optimized 49; OPT: define linkonce_odr void @linkonceodrfuncwithalias() 50define linkonce_odr void @linkonceodrfuncwithalias() #0 { 51entry: 52 ret void 53} 54 55; Function with an alias are not optimized 56; OPT: define linkonce void @linkoncefuncwithalias() 57define linkonce void @linkoncefuncwithalias() #0 { 58entry: 59 ret void 60} 61 62; OPT: define weak_odr void @linkonceodrfunc() 63define linkonce_odr void @linkonceodrfunc() #0 { 64entry: 65 ret void 66} 67; OPT: define weak void @linkoncefunc() 68define linkonce void @linkoncefunc() #0 { 69entry: 70 ret void 71} 72; OPT: define weak_odr void @weakodrfunc() 73define weak_odr void @weakodrfunc() #0 { 74entry: 75 ret void 76} 77; OPT: define weak void @weakfunc() 78define weak void @weakfunc() #0 { 79entry: 80 ret void 81} 82 83; OPT: weak_odr void @linkonceodrfuncInSingleModule() 84define linkonce_odr void @linkonceodrfuncInSingleModule() #0 { 85entry: 86 ret void 87} 88