1 ; RUN: opt -module-summary %s -o %t.o 2 ; RUN: opt -module-summary %p/Inputs/thinlto_linkonceresolution.ll -o %t2.o 3 4 ; Ensure the plugin ensures that for ThinLTO the prevailing copy of a 5 ; linkonce symbol is changed to weak to ensure it is not eliminated. 6 ; Note that gold picks the first copy of f() as the prevailing one, 7 ; so listing %t2.o first is sufficient to ensure that this copy is 8 ; preempted. Also, set the import-instr-limit to 0 to prevent f() from 9 ; being imported from %t2.o which hides the problem. 10 ; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \ 11 ; RUN: --plugin-opt=thinlto \ 12 ; RUN: --plugin-opt=-import-instr-limit=0 \ 13 ; RUN: --plugin-opt=save-temps \ 14 ; RUN: -shared \ 15 ; RUN: -o %t3.o %t2.o %t.o 16 ; RUN: llvm-nm %t3.o | FileCheck %s 17 ; RUN: llvm-dis %t.o.opt.bc -o - | FileCheck --check-prefix=OPT %s 18 ; RUN: llvm-dis %t2.o.opt.bc -o - | FileCheck --check-prefix=OPT2 %s 19 20 ; Ensure that f() is defined in resulting object file, and also 21 ; confirm the weak linkage directly in the saved opt bitcode files. 22 ; CHECK-NOT: U f 23 ; OPT: declare hidden void @f() 24 ; OPT2: define weak_odr hidden void @f() 25 26 target triple = "x86_64-unknown-linux-gnu" 27 define i32 @g() { 28 call void @f() 29 ret i32 0 30 } 31 define linkonce_odr hidden void @f() { 32 ret void 33 } 34
