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