3924877932
In the textual format, `noduplicates` means no COMDAT/section group deduplication is performed. Therefore, if both sets of sections are retained, and they happen to define strong external symbols with the same names, there will be a duplicate definition linker error. In PE/COFF, the selection kind lowers to `IMAGE_COMDAT_SELECT_NODUPLICATES`. The name describes the corollary instead of the immediate semantics. The name can cause confusion to other binary formats (ELF, wasm) which have implemented/ want to implement the "no deduplication" selection kind. Rename it to be clearer. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D106319
93 lines
2.4 KiB
LLVM
93 lines
2.4 KiB
LLVM
; RUN: llc -mtriple i386-pc-win32 < %s | FileCheck %s
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$f1 = comdat any
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@v1 = global i32 0, comdat($f1)
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define void @f1() comdat($f1) {
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ret void
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}
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$f2 = comdat exactmatch
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@v2 = global i32 0, comdat($f2)
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define void @f2() comdat($f2) {
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ret void
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}
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$f3 = comdat largest
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@v3 = global i32 0, comdat($f3)
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define void @f3() comdat($f3) {
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ret void
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}
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$f4 = comdat nodeduplicate
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@v4 = global i32 0, comdat($f4)
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define void @f4() comdat($f4) {
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ret void
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}
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$f5 = comdat samesize
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@v5 = global i32 0, comdat($f5)
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define void @f5() comdat($f5) {
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ret void
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}
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$f6 = comdat samesize
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@v6 = global i32 0, comdat($f6)
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@f6 = global i32 0, comdat($f6)
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$"\01@f7@0" = comdat any
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define x86_fastcallcc void @"\01@v7@0"() comdat($"\01@f7@0") {
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ret void
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}
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define x86_fastcallcc void @"\01@f7@0"() comdat($"\01@f7@0") {
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ret void
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}
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$f8 = comdat any
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define x86_fastcallcc void @v8() comdat($f8) {
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ret void
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}
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define x86_fastcallcc void @f8() comdat($f8) {
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ret void
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}
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$vftable = comdat largest
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@some_name = private unnamed_addr constant [2 x i8*] zeroinitializer, comdat($vftable)
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@vftable = alias i8*, getelementptr([2 x i8*], [2 x i8*]* @some_name, i32 0, i32 1)
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; CHECK: .section .text,"xr",discard,_f1
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; CHECK: .globl _f1
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; CHECK: .section .text,"xr",same_contents,_f2
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; CHECK: .globl _f2
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; CHECK: .section .text,"xr",largest,_f3
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; CHECK: .globl _f3
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; CHECK: .section .text,"xr",one_only,_f4
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; CHECK: .globl _f4
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; CHECK: .section .text,"xr",same_size,_f5
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; CHECK: .globl _f5
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; CHECK: .section .text,"xr",associative,@f7@0
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; CHECK: .globl @v7@0
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; CHECK: .section .text,"xr",discard,@f7@0
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; CHECK: .globl @f7@0
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; CHECK: .section .text,"xr",associative,@f8@0
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; CHECK: .globl @v8@0
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; CHECK: .section .text,"xr",discard,@f8@0
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; CHECK: .globl @f8@0
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; CHECK: .section .bss,"bw",associative,_f1
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; CHECK: .globl _v1
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; CHECK: .section .bss,"bw",associative,_f2
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; CHECK: .globl _v2
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; CHECK: .section .bss,"bw",associative,_f3
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; CHECK: .globl _v3
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; CHECK: .section .bss,"bw",associative,_f4
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; CHECK: .globl _v4
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; CHECK: .section .bss,"bw",associative,_f5
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; CHECK: .globl _v5
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; CHECK: .section .bss,"bw",associative,_f6
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; CHECK: .globl _v6
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; CHECK: .section .bss,"bw",same_size,_f6
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; CHECK: .globl _f6
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; CHECK: .section .rdata,"dr",largest,_vftable
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; CHECK: .globl _vftable
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; CHECK: .set _vftable, L_some_name+4
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