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1# REQUIRES: x862 3# RUN: llvm-mc -triple=x86_64-windows-gnu %s -filetype=obj -o %t1.obj4# RUN: llvm-mc -triple=x86_64-windows-gnu %S/Inputs/associative-comdat-mingw-2.s -filetype=obj -o %t2.obj5 6# RUN: lld-link -lldmingw -entry:main %t1.obj %t2.obj -out:%t.gc.exe -verbose7# RUN: llvm-readobj --sections %t.gc.exe | FileCheck %s8 9# CHECK: Sections [10# CHECK: Section {11# CHECK: Number: 212# CHECK-LABEL: Name: .rdata (2E 72 64 61 74 61 00 00)13# This is the critical check to show that only *one* definition of14# .xdata$foo was retained. This *must* be 0x24 (0x4 for the .xdata15# section and 0x20 for the .ctors/.dtors headers/ends).16# Make sure that no other .xdata sections get included, which would17# increase the size here.18# CHECK-NEXT: VirtualSize: 0x2419 20 .text21 .def main;22 .scl 2;23 .type 32;24 .endef25 .globl main26 .p2align 4, 0x9027main:28 call foo29 retq30 31# Defines .text$foo (which has a leader symbol and is referenced like32# normally), and .xdata$foo (which lacks a leader symbol, which normally33# would be declared associative to the symbol foo).34# .xdata$foo should be implicitly treated as associative to foo and brought35# in, while .xdata$bar, implicitly associative to bar, not included, and36# .xdata$baz not included since there's no symbol baz.37 38# GNU binutils ld doesn't do this at all, but always includes all .xdata/.pdata39# comdat sections, even if --gc-sections is used.40 41 .section .xdata$foo,"dr"42 .linkonce discard43 .p2align 344 .long 4245 46 .section .xdata$bar,"dr"47 .linkonce discard48 .p2align 349 .long 4350 51 .section .xdata$baz,"dr"52 .linkonce discard53 .p2align 354 .long 4455 56 .def foo;57 .scl 2;58 .type 32;59 .endef60 .section .text$foo,"xr",discard,foo61 .globl foo62 .p2align 463foo:64 ret65 66 .def bar;67 .scl 2;68 .type 32;69 .endef70 .section .text$bar,"xr",discard,bar71 .globl bar72 .p2align 473bar:74 ret75