REQUIRES: x86
RUN: split-file %s %t.dir && cd %t.dir

RUN: llvm-mc -filetype=obj -triple=x86_64-windows antidep.s -o antidep.obj
RUN: llvm-mc -filetype=obj -triple=x86_64-windows antidep2.s -o antidep2.obj
RUN: llvm-mc -filetype=obj -triple=x86_64-windows weak.s -o weak.obj
RUN: llvm-mc -filetype=obj -triple=x86_64-windows test.s -o test.obj

Check that a regular weak alias overrides an anti-dependency symbol.

RUN: lld-link -dll -noentry -out:out1.dll antidep.obj weak.obj test.obj
RUN: llvm-readobj --hex-dump=.test out1.dll | FileCheck --check-prefix=CHECK2 %s

RUN: lld-link -dll -noentry -out:out2.dll weak.obj antidep.obj test.obj
RUN: llvm-readobj --hex-dump=.test out2.dll | FileCheck --check-prefix=CHECK2 %s

RUN: lld-link -dll -noentry -out:out3.dll antidep.obj weak.obj test.obj -lld-allow-duplicate-weak
RUN: llvm-readobj --hex-dump=.test out3.dll | FileCheck --check-prefix=CHECK2 %s

RUN: lld-link -dll -noentry -out:out4.dll weak.obj antidep.obj test.obj -lld-allow-duplicate-weak
RUN: llvm-readobj --hex-dump=.test out4.dll | FileCheck --check-prefix=CHECK2 %s

When an anti-dependency symbol is duplicated, the first definition takes precedence over subsequent ones.

RUN: lld-link -dll -noentry -out:out5.dll antidep.obj antidep2.obj test.obj
RUN: llvm-readobj --hex-dump=.test out5.dll | FileCheck --check-prefix=CHECK1 %s

RUN: lld-link -dll -noentry -out:out6.dll antidep2.obj antidep.obj test.obj
RUN: llvm-readobj --hex-dump=.test out6.dll | FileCheck --check-prefix=CHECK2 %s

CHECK1: 01000000
CHECK2: 02000000

#--- antidep.s
     .weak_anti_dep sym
.set sym,target1

#--- antidep2.s
     .weak_anti_dep sym
.set sym,target2

#--- weak.s
     .weak sym
.set sym,target2

#--- test.s
     .section .target,"dr"
     .globl target1
.set target1,1
     .globl target2
.set target2,2

     .section .test,"dr"
     .long sym