2017-06-17 04:51:42 +08:00
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# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t1.obj
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# RUN: llvm-mc -triple=x86_64-windows-msvc %S/Inputs/associative-comdat-2.s -filetype=obj -o %t2.obj
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2017-06-17 04:47:19 +08:00
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# RUN: lld-link -entry:main %t1.obj %t2.obj -out:%t.gc.exe
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# RUN: llvm-readobj -sections %t.gc.exe | FileCheck %s
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# RUN: lld-link -entry:main %t1.obj %t2.obj -opt:noref -out:%t.nogc.exe
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# RUN: llvm-readobj -sections %t.nogc.exe | FileCheck %s
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# CHECK: Sections [
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# CHECK: Section {
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# CHECK: Number: 1
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# CHECK-LABEL: Name: .data (2E 64 61 74 61 00 00 00)
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# CHECK-NEXT: VirtualSize: 0x4
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# CHECK: Section {
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# CHECK-LABEL: Name: .rdata (2E 72 64 61 74 61 00 00)
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# This is the critical check to show that only *one* definition of
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# foo_assoc was retained. This *must* be 8, not 16.
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# CHECK-NEXT: VirtualSize: 0x8
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.text
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.def main;
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.scl 2;
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.type 32;
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.endef
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.globl main # -- Begin function main
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.p2align 4, 0x90
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main: # @main
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# BB#0:
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movl foo(%rip), %eax
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retq
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# -- End function
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# Defines foo and foo_assoc globals. foo is comdat, and foo_assoc is comdat
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# associative with it. foo_assoc should be discarded iff foo is discarded,
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# either by linker GC or normal comdat merging.
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.section .rdata,"dr",associative,foo
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.p2align 3
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.quad foo
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.section .data,"dw",discard,foo
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.globl foo # @foo
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.p2align 2
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foo:
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.long 42
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