derek.holloway
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89 lines
2.3 KiB
ArmAsm
89 lines
2.3 KiB
ArmAsm
// REQUIRES: x86
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// Checks whether the TLS optimizations match the cases in Chapter 11 of
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// https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-opt-gdie.s -o %tso.o
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// RUN: ld.lld -shared %tso.o -soname=t.so -o %t.so
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// RUN: ld.lld %t.o %t.so -o %t1
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// RUN: llvm-readobj -r %t1 | FileCheck --check-prefix=RELOC %s
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// RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t1 | FileCheck --check-prefix=DISASM %s
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// RELOC: Relocations [
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// RELOC-NEXT: Section {{.*}} .rela.dyn {
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// RELOC-NEXT: 0x202420 R_X86_64_TPOFF64 tlsshared0 0x0
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// RELOC-NEXT: 0x202428 R_X86_64_TPOFF64 tlsshared1 0x0
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// RELOC-NEXT: }
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// RELOC-NEXT: ]
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// DISASM: <_start>:
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// Table 11.5: GD -> IE Code Transition (LP64)
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// DISASM-NEXT: movq %fs:0, %rax
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// DISASM-NEXT: 201309: addq 4368(%rip), %rax
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// DISASM-NEXT: movq %fs:0, %rax
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// DISASM-NEXT: 201319: addq 4360(%rip), %rax
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// Table 11.7: GD -> LE Code Transition (LP64)
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// DISASM-NEXT: movq %fs:0, %rax
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// DISASM-NEXT: leaq -8(%rax), %rax
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// DISASM-NEXT: movq %fs:0, %rax
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// DISASM-NEXT: leaq -4(%rax), %rax
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// Table 11.9: LD -> LE Code Transition (LP64)
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// DISASM-NEXT: movq %fs:0, %rax
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// DISASM-NEXT: movq %fs:0, %rax
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.type tls0,@object
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.section .tbss,"awT",@nobits
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.globl tls0
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.align 4
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tls0:
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.long 0
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.size tls0, 4
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.type tls1,@object
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.globl tls1
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.align 4
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tls1:
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.long 0
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.size tls1, 4
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.section .text
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.globl _start
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_start:
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// Table 11.5: GD -> IE Code Transition (LP64)
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.byte 0x66
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leaq tlsshared0@tlsgd(%rip),%rdi
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.byte 0x66
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rex64
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call *__tls_get_addr@GOTPCREL(%rip)
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.byte 0x66
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leaq tlsshared1@tlsgd(%rip),%rdi
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.byte 0x66
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rex64
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call *__tls_get_addr@GOTPCREL(%rip)
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// Table 11.7: GD -> LE Code Transition (LP64)
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.byte 0x66
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leaq tls0@tlsgd(%rip),%rdi
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.byte 0x66
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rex64
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call *__tls_get_addr@GOTPCREL(%rip)
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.byte 0x66
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leaq tls1@tlsgd(%rip),%rdi
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.byte 0x66
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rex64
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call *__tls_get_addr@GOTPCREL(%rip)
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// Table 11.9: LD -> LE Code Transition (LP64)
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leaq tls0@tlsld(%rip),%rdi
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call *__tls_get_addr@GOTPCREL(%rip)
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leaq tls1@tlsld(%rip),%rdi
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call *__tls_get_addr@GOTPCREL(%rip)
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