1; REQUIRES: x86 2; RUN: rm -rf %t; split-file %s %t 3 4; RUN: opt %t/f.ll -o %t/f.o 5; RUN: llvm-ar rcs %t/libf.a %t/f.o 6; RUN: llc -filetype=obj %t/q.ll -o %t/q.o 7; RUN: llvm-ar rcs %t/libq.a %t/q.o 8; RUN: llc -filetype=obj %t/m.ll -o %t/m.o 9 10; RUN: %no-fatal-warnings-lld -dylib -lSystem -L%t %t/libf.a %t/m.o -o %t/test.out 2>&1 | FileCheck %s 11 12; We can't read symbols that are set by module asm in the bitcode's symbol table. 13; LTO internalizes `odr` in `f.ll`, and thus the prevailing `odr` remains unresolved. 14; `q.ll` is loaded after LTO is finished during post-processing LC linker options. 15; The unresolved prevailing `odr` is now resolved with `q.ll`. 16 17; CHECK: warning: The pending prevailing symbol(_odr) in the bitcode file({{.*}}libf.a(f.o)) is overridden by a post-processed native object (from native archive): {{.*}}libq.a(q.o) 18 19;--- f.ll 20target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 21target triple = "x86_64-apple-macosx10.15.0" 22 23!0 = !{!"-lq"} 24!llvm.linker.options = !{!0} 25 26define i64 @f() { 27 %1 = call i64 @odr() 28 %2 = call i64 @q() 29 %3 = add i64 %1, %2 30 ret i64 %3 31} 32 33define weak hidden i64 @odr() noinline { 34 ret i64 1 35} 36 37declare i64 @q() 38 39;--- q.ll 40target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 41target triple = "x86_64-apple-macosx10.15.0" 42 43define i64 @q() { 44 %1 = call i64 @odr() 45 ret i64 %1 46} 47 48define linkonce_odr hidden i64 @odr() noinline { 49 ret i64 2 50} 51 52;--- m.ll 53target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 54target triple = "x86_64-apple-macosx10.15.0" 55 56declare i64 @f() 57 58define i64 @m() { 59 %1 = call i64 @f() 60 ret i64 %1 61} 62