1# REQUIRES: x86
2# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t1.obj
3# RUN: llvm-mc -triple=x86_64-windows-msvc %S/Inputs/associative-comdat-2.s -filetype=obj -o %t2.obj
4
5# RUN: lld-link -entry:main %t1.obj %t2.obj -out:%t.gc.exe
6# RUN: llvm-readobj --sections %t.gc.exe | FileCheck %s
7
8# RUN: lld-link -entry:main %t1.obj %t2.obj -opt:noref -out:%t.nogc.exe
9# RUN: llvm-readobj --sections %t.nogc.exe | FileCheck %s
10
11# CHECK: Sections [
12# CHECK:   Section {
13# CHECK:     Number: 2
14# CHECK-LABEL:     Name: .rdata (2E 72 64 61 74 61 00 00)
15#             This is the critical check to show that only *one* definition of
16#             foo_assoc was retained. This *must* be 8, not 16.
17# CHECK-NEXT:     VirtualSize: 0x8
18# CHECK:   Section {
19# CHECK:     Number: 3
20# CHECK-LABEL:     Name: .data (2E 64 61 74 61 00 00 00)
21# CHECK-NEXT:     VirtualSize: 0x4
22
23        .text
24        .def     main;
25        .scl    2;
26        .type   32;
27        .endef
28        .globl  main                    # -- Begin function main
29        .p2align        4, 0x90
30main:                                   # @main
31# BB#0:
32        movl    foo(%rip), %eax
33        retq
34                                        # -- End function
35
36# Defines foo and foo_assoc globals. foo is comdat, and foo_assoc is comdat
37# associative with it. foo_assoc should be discarded iff foo is discarded,
38# either by linker GC or normal comdat merging.
39
40        .section        .rdata,"dr",associative,foo
41        .p2align        3
42        .quad   foo
43
44        .section        .data,"dw",discard,foo
45        .globl  foo                     # @foo
46        .p2align        2
47foo:
48        .long   42
49