16af973933
This change introduces support for zero flag ELF section groups to LLVM. LLVM already supports COMDAT sections, which in ELF are a special type of ELF section groups. These are generally useful to enable linker GC where you want a group of sections to always travel together, that is to be either retained or discarded as a whole, but without the COMDAT semantics. Other ELF assemblers already support zero flag ELF section groups and this change helps us reach feature parity. Differential Revision: https://reviews.llvm.org/D95851
20 lines
463 B
LLVM
20 lines
463 B
LLVM
; Checks that comdat with noduplicates kind is lowered to a zero-flag ELF
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; section group.
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; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s
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; CHECK: .section .text.f1,"axG",@progbits,f1{{$}}
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; CHECK: .section .text.f2,"axG",@progbits,f1{{$}}
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; CHECK: .section .bss.g1,"aGw",@nobits,f1{{$}}
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$f1 = comdat noduplicates
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define void @f1() comdat {
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unreachable
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}
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define hidden void @f2() comdat($f1) {
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unreachable
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}
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@g1 = global i32 0, comdat($f1)
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