928a197d26
See https://groups.google.com/g/generic-abi/c/2X6mR-s2zoc Test that a local signature symbol does not suppress COMDAT deduplication.
31 lines
900 B
ArmAsm
31 lines
900 B
ArmAsm
# REQUIRES: x86
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## COMDAT groups are deduplicated by the name of the signature symbol.
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## The local/global status is not part of the equation.
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
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# RUN: ld.lld %t.o %t.o -o %t
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# RUN: llvm-readelf -s -x .zero -x .comdat %t | FileCheck %s
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# CHECK: Type Bind Vis Ndx Name
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# CHECK-NEXT: NOTYPE LOCAL DEFAULT UND
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# CHECK-NEXT: NOTYPE LOCAL DEFAULT [[#A:]] zero
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# CHECK-NEXT: NOTYPE LOCAL DEFAULT [[#]] comdat
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# CHECK-NEXT: NOTYPE LOCAL DEFAULT [[#A]] zero
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# CHECK-NOT: {{.}}
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## Non-GRP_COMDAT groups are never deduplicated.
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# CHECK: Hex dump of section '.zero':
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# CHECK-NEXT: [[#%x,]] 0202
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## GRP_COMDAT groups are deduplicated.
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# CHECK: Hex dump of section '.comdat':
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# CHECK-NEXT: [[#%x,]] 01 .{{$}}
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.section .zero,"aG",@progbits,zero
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zero:
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.byte 2
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.section .comdat,"aG",@progbits,comdat,comdat
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comdat:
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.byte 1
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