42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
|
; Test to ensure that ThinLTO sorts the modules before passing to the
|
||
|
|
; final native link based on the linker's determination of which
|
||
|
|
; object within a static library contains the prevailing def of a symbol.
|
||
|
|
|
||
|
|
; First generate bitcode with a module summary index for each file
|
||
|
|
; RUN: opt -module-summary %s -o %t.o
|
||
|
|
; RUN: opt -module-summary %p/Inputs/thinlto_weak_library1.ll -o %t2.o
|
||
|
|
; RUN: opt -module-summary %p/Inputs/thinlto_weak_library2.ll -o %t3.o
|
||
|
|
|
||
|
|
; Although the objects are ordered "%t2.o %t3.o" in the library, the
|
||
|
|
; linker selects %t3.o first since it satisfies a strong reference from
|
||
|
|
; %t.o. It later selects %t2.o based on the strong ref from %t3.o.
|
||
|
|
; Therefore, %t3.o's copy of @f is prevailing, and we need to link
|
||
|
|
; %t3.o before %t2.o in the final native link.
|
||
|
|
; RUN: %gold -plugin %llvmshlibdir/LLVMgold%shlibext \
|
||
|
|
; RUN: --plugin-opt=thinlto \
|
||
|
|
; RUN: --plugin-opt=save-temps \
|
||
|
|
; RUN: -m elf_x86_64 \
|
||
|
|
; RUN: -o %t4 \
|
||
|
|
; RUN: %t.o \
|
||
|
|
; RUN: --start-lib %t2.o %t3.o --end-lib
|
||
|
|
|
||
|
|
; Make sure we completely dropped the definition of the non-prevailing
|
||
|
|
; copy of f() (and didn't simply convert to available_externally, which
|
||
|
|
; would incorrectly enable inlining).
|
||
|
|
; RUN: llvm-dis %t2.o.1.promote.bc -o - | FileCheck %s
|
||
|
|
; CHECK: declare i32 @f()
|
||
|
|
|
||
|
|
; ModuleID = 'thinlto_weak_library.c'
|
||
|
|
source_filename = "thinlto_weak_library.c"
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
|
||
|
|
; Function Attrs: nounwind uwtable
|
||
|
|
define i32 @main() local_unnamed_addr {
|
||
|
|
entry:
|
||
|
|
tail call void (...) @test2()
|
||
|
|
ret i32 0
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @test2(...) local_unnamed_addr
|