forked from OSchip/llvm-project
50 lines
1.6 KiB
ArmAsm
50 lines
1.6 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
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# RUN: ld.lld -pie %t.o --icf=all --print-icf-sections -o /dev/null | \
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# RUN: FileCheck --check-prefixes=EXE %s
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# RUN: ld.lld -shared %t.o --icf=all --print-icf-sections -o /dev/null | \
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# RUN: FileCheck --check-prefix=DSO %s --implicit-check-not=removing
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## Definitions are non-preemptible in an executable.
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# EXE: selected section {{.*}}:(.text.h1)
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# EXE-NEXT: removing identical section {{.*}}:(.text.h2)
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# EXE-NEXT: removing identical section {{.*}}:(.text.h3)
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# EXE: selected section {{.*}}:(.text.f1)
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# EXE-NEXT: removing identical section {{.*}}:(.text.f2)
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# EXE-NEXT: selected section {{.*}}:(.text.g1)
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# EXE: removing identical section {{.*}}:(.text.g2)
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# EXE-NEXT: removing identical section {{.*}}:(.text.g3)
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## Definitions are preemptible in a DSO. Only leaf functions can be folded.
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# DSO: selected section {{.*}}:(.text.f1)
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# DSO-NEXT: removing identical section {{.*}}:(.text.f2)
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# DSO-NEXT: selected section {{.*}}:(.text.g1)
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# DSO-NEXT: removing identical section {{.*}}:(.text.g3)
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.globl f1, f2, g1, g2, g3
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.section .text.f1
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f1: ret
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.section .text.f2
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f2: ret
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## In -shared mode, .text.g1 and .text.g2 cannot be folded because f1 and f2 are
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## preemptible and may refer to different functions at runtime.
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.section .text.g1
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g1: jmp f1@plt
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.section .text.g2
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g2: jmp f2@plt
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.section .text.g3
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g3: jmp f1@plt
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## In -shared mode, the sections below cannot be folded because g1, g2 and g3
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## are preemptible and may refer to different functions at runtime.
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.section .text.h1
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jmp g1@plt
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.section .text.h2
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jmp g2@plt
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.section .text.h3
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jmp g3@plt
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