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c91d2e2e94
Summary: MSVC and LLD sort sections ASCII-betically, so we need to use section names that sort between .CRT$XCA (the start) and .CRT$XCU (the default priority). In the general case, use .CRT$XCT12345 as the section name, and let the linker sort the zero-padded digits. Users with low priorities typically want to initialize as early as possible, so use .CRT$XCA00199 for prioties less than 200. This number is arbitrary. Implements PR38552. Reviewers: majnemer, mstorsjo Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D51820 llvm-svn: 341727
60 lines
1.7 KiB
LLVM
60 lines
1.7 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Check that we come up with appropriate section names that link.exe sorts
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; well.
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; CHECK: .section .CRT$XCA00042,"dr"
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; CHECK: .p2align 3
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; CHECK: .quad f
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; CHECK: .section .CRT$XCT12345,"dr"
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; CHECK: .p2align 3
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; CHECK: .quad g
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; CHECK: .section .CRT$XCT23456,"dr",associative,h
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; CHECK: .p2align 3
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; CHECK: .quad init_h
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.14.26433"
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$h = comdat any
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@h = linkonce_odr global i8 55, comdat, align 1
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@str0 = private dso_local unnamed_addr constant [6 x i8] c"later\00", align 1
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@str1 = private dso_local unnamed_addr constant [6 x i8] c"first\00", align 1
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@str2 = private dso_local unnamed_addr constant [5 x i8] c"main\00", align 1
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@llvm.global_ctors = appending global [3 x { i32, void ()*, i8* }] [
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{ i32, void ()*, i8* } { i32 12345, void ()* @g, i8* null },
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{ i32, void ()*, i8* } { i32 42, void ()* @f, i8* null },
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{ i32, void ()*, i8* } { i32 23456, void ()* @init_h, i8* @h }
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]
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declare dso_local i32 @puts(i8* nocapture readonly) local_unnamed_addr
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define dso_local void @g() {
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entry:
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%call = tail call i32 @puts(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @str0, i64 0, i64 0))
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ret void
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}
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define dso_local void @f() {
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entry:
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%call = tail call i32 @puts(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @str1, i64 0, i64 0))
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ret void
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}
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define dso_local void @init_h() {
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entry:
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store i8 42, i8* @h
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ret void
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}
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; Function Attrs: nounwind uwtable
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define dso_local i32 @main() local_unnamed_addr {
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entry:
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%call = tail call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str2, i64 0, i64 0))
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ret i32 0
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}
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