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43 lines
1.2 KiB
LLVM
43 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s >%t1
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; RUN: llvm-lto -o %t2 %t1
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; RUN: llvm-nm %t2 | FileCheck %s -check-prefix=NOEXPORT
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; RUN: llvm-lto -o %t3 -exported-symbol=main %t1
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; RUN: llvm-nm %t3 | FileCheck %s -check-prefix=EXPORT
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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module asm ".text"
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module asm ".align 16, 0x90"
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module asm ".type PR14512, @function"
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module asm "PR14512:.cfi_startproc"
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module asm "ret"
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module asm ".cfi_endproc"
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declare void @PR14512()
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; Without -exported-symbol, main should be eliminated by LTO.
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; With -exported-symbol=main, main should be preserved by LTO.
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define i32 @main(i32 %argc, i8** %argv) {
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; NOEXPORT-NOT: main
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; EXPORT: main
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call void @PR14512()
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ret i32 0
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}
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; RUN: llvm-lto -o %t -dso-symbol=zed1 -dso-symbol=zed2 %t1 -O0
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; RUN: llvm-nm %t | FileCheck %s -check-prefix=ZED1_AND_ZED2
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; ZED1_AND_ZED2: V zed1
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@zed1 = linkonce_odr global i32 42
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define i32* @get_zed1() {
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ret i32* @zed1
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}
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; ZED1_AND_ZED2: r zed2
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@zed2 = linkonce_odr unnamed_addr constant i32 42
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define i32 @useZed2() {
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%x = load i32, i32* @zed2
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ret i32 %x
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}
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