40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=i386-linux-musl -relocation-model=pic -relax-elf-relocations=true | FileCheck --check-prefixes=CHECK,X86 %s
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; RUN: llc < %s -mtriple=x86_64-linux-musl -relocation-model=pic -relax-elf-relocations=true | FileCheck --check-prefixes=CHECK,X64 %s
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;; If GOTPCRELX is disabled, don't use GOT for __tls_get_addr to work around
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;; a ld.bfd bug (binutils PR24784).
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; RUN: llc < %s -mtriple=i386-linux-musl -relocation-model=pic | FileCheck --check-prefixes=CHECK,X86-PLT %s
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; RUN: llc < %s -mtriple=x86_64-linux-musl -relocation-model=pic | FileCheck --check-prefixes=CHECK,X64-PLT %s
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@gd = thread_local global i32 0
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@ld = internal thread_local global i32 0
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define ptr @get_gd() {
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entry:
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; CHECK-LABEL: get_gd:
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; X86: leal gd@TLSGD(%ebx), %eax
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; X86: calll *___tls_get_addr@GOT(%ebx)
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; X86-PLT: calll ___tls_get_addr@PLT
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; X64: leaq gd@TLSGD(%rip), %rdi
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; X64: callq *__tls_get_addr@GOTPCREL(%rip)
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; X64-PLT: callq __tls_get_addr@PLT
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ret ptr @gd
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}
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define ptr @get_ld() {
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; FIXME: This function uses a single thread-local variable, we might want to fall back to general-dynamic.
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; CHECK-LABEL: get_ld:
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; X86: leal ld@TLSLDM(%ebx), %eax
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; X86: calll *___tls_get_addr@GOT(%ebx)
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; X86-PLT: calll ___tls_get_addr@PLT
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; X64: leaq ld@TLSLD(%rip), %rdi
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; X64: callq *__tls_get_addr@GOTPCREL(%rip)
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; X64-PLT: callq __tls_get_addr@PLT
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ret ptr @ld
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}
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!llvm.module.flags = !{!1}
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!1 = !{i32 7, !"RtLibUseGOT", i32 1}
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