| ; RUN: opt -module-summary %s -o %t.o |
| ; RUN: opt -module-summary %p/Inputs/thinlto_linkonceresolution.ll -o %t2.o |
| |
| ; Ensure the plugin ensures that for ThinLTO the prevailing copy of a |
| ; linkonce symbol is changed to weak to ensure it is not eliminated. |
| ; Note that gold picks the first copy of f() as the prevailing one, |
| ; so listing %t2.o first is sufficient to ensure that this copy is |
| ; preempted. Also, set the import-instr-limit to 0 to prevent f() from |
| ; being imported from %t2.o which hides the problem. |
| ; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \ |
| ; RUN: --plugin-opt=thinlto \ |
| ; RUN: --plugin-opt=-import-instr-limit=0 \ |
| ; RUN: --plugin-opt=save-temps \ |
| ; RUN: -shared \ |
| ; RUN: -o %t3.o %t2.o %t.o |
| ; RUN: llvm-nm %t3.o | FileCheck %s |
| ; RUN: llvm-dis %t.o.4.opt.bc -o - | FileCheck --check-prefix=OPT %s |
| ; RUN: llvm-dis %t2.o.4.opt.bc -o - | FileCheck --check-prefix=OPT2 %s |
| |
| ; Ensure that f() is defined in resulting object file, and also |
| ; confirm the weak linkage directly in the saved opt bitcode files. |
| ; CHECK-NOT: U f |
| ; OPT-NOT: @f() |
| ; OPT2: define weak_odr hidden void @f() |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| define i32 @g() { |
| call void @f() |
| ret i32 0 |
| } |
| define linkonce_odr hidden void @f() { |
| ret void |
| } |