src/llvm-project/llvm/test/CodeGen/Mips/mirparser/target-flags-static-tls.mir

# RUN: llc -march=mips64 -target-abi n64 -start-before=finalize-isel \
# RUN:     -stop-after=finalize-isel -relocation-model=static  -o /dev/null %s

# A simple test to show that we can parse the target specific flags: highest,
# higher, hi, lo, tprel-lo, tprel-hi, gpoff-hi, gpoff-lo, gottprel.

--- |
  @v = global i32 0, align 4
  @k = thread_local global i32 0, align 4
  @j = external thread_local global i32, align 4
  @__tls_guard = internal thread_local global i1 false, align 1

  declare i32 @_Z1gi(i32 signext)

  declare extern_weak void @_ZTH1j()

  define i32 @_Z2k1i(i32 signext %asd) {
  entry:
    %call = tail call i32 @_Z1gi(i32 signext %asd)
    %add = add nsw i32 %call, %asd
    %0 = load i32, i32* @v, align 4
    %add1 = add nsw i32 %add, %0
    %.b.i.i = load i1, i1* @__tls_guard, align 1
    br i1 %.b.i.i, label %entry._ZTW1k.exit_crit_edge, label %init.i.i

  entry._ZTW1k.exit_crit_edge:
    %.pre = load i32, i32* @k, align 4
    br label %_ZTW1k.exit

  init.i.i:
    store i1 true, i1* @__tls_guard, align 1
    %call.i.i.i = tail call i32 @_Z1gi(i32 signext 3)
    store i32 %call.i.i.i, i32* @k, align 4
    br label %_ZTW1k.exit

  _ZTW1k.exit:
    %1 = phi i32 [ %.pre, %entry._ZTW1k.exit_crit_edge ], [ %call.i.i.i, %init.i.i ]
    %add2 = add nsw i32 %add1, %1
    br i1 icmp ne (void ()* @_ZTH1j, void ()* null), label %2, label %_ZTW1j.exit

  ; <label>:2:
    tail call void @_ZTH1j()
    br label %_ZTW1j.exit

  _ZTW1j.exit:
    %3 = load i32, i32* @j, align 4
    %add3 = add nsw i32 %add2, %3
    ret i32 %add3
  }
...
---
name:            _Z2k1i
alignment:       8
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr32, preferred-register: '' }
  - { id: 1, class: gpr32, preferred-register: '' }
  - { id: 2, class: gpr32, preferred-register: '' }
  - { id: 3, class: gpr32, preferred-register: '' }
  - { id: 4, class: gpr32, preferred-register: '' }
  - { id: 5, class: gpr64, preferred-register: '' }
  - { id: 6, class: gpr32, preferred-register: '' }
  - { id: 7, class: gpr32, preferred-register: '' }
  - { id: 8, class: gpr32, preferred-register: '' }
  - { id: 9, class: gpr64, preferred-register: '' }
  - { id: 10, class: gpr64, preferred-register: '' }
  - { id: 11, class: gpr64, preferred-register: '' }
  - { id: 12, class: gpr64, preferred-register: '' }
  - { id: 13, class: gpr64, preferred-register: '' }
  - { id: 14, class: gpr32, preferred-register: '' }
  - { id: 15, class: gpr64, preferred-register: '' }
  - { id: 16, class: gpr64, preferred-register: '' }
  - { id: 17, class: gpr64, preferred-register: '' }
  - { id: 18, class: gpr64, preferred-register: '' }
  - { id: 19, class: gpr64, preferred-register: '' }
  - { id: 20, class: gpr32, preferred-register: '' }
  - { id: 21, class: gpr64, preferred-register: '' }
  - { id: 22, class: gpr64, preferred-register: '' }
  - { id: 23, class: gpr64, preferred-register: '' }
  - { id: 24, class: gpr64, preferred-register: '' }
  - { id: 25, class: gpr64, preferred-register: '' }
  - { id: 26, class: gpr32, preferred-register: '' }
  - { id: 27, class: gpr64, preferred-register: '' }
  - { id: 28, class: gpr64, preferred-register: '' }
  - { id: 29, class: gpr64, preferred-register: '' }
  - { id: 30, class: gpr64, preferred-register: '' }
  - { id: 31, class: gpr32, preferred-register: '' }
  - { id: 32, class: gpr64, preferred-register: '' }
  - { id: 33, class: gpr64, preferred-register: '' }
  - { id: 34, class: gpr64, preferred-register: '' }
  - { id: 35, class: gpr64, preferred-register: '' }
  - { id: 36, class: gpr64, preferred-register: '' }
  - { id: 37, class: gpr64, preferred-register: '' }
  - { id: 38, class: gpr64, preferred-register: '' }
  - { id: 39, class: gpr64, preferred-register: '' }
  - { id: 40, class: gpr64, preferred-register: '' }
  - { id: 41, class: gpr64, preferred-register: '' }
  - { id: 42, class: gpr64, preferred-register: '' }
  - { id: 43, class: gpr64, preferred-register: '' }
  - { id: 44, class: gpr64, preferred-register: '' }
  - { id: 45, class: gpr64, preferred-register: '' }
  - { id: 46, class: gpr64, preferred-register: '' }
  - { id: 47, class: gpr64, preferred-register: '' }
  - { id: 48, class: gpr32, preferred-register: '' }
  - { id: 49, class: gpr32, preferred-register: '' }
  - { id: 50, class: gpr64, preferred-register: '' }
  - { id: 51, class: gpr64, preferred-register: '' }
liveins:
  - { reg: '$a0_64', virtual-reg: '%5' }
  - { reg: '$t9_64', virtual-reg: '' }
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       0
  offsetAdjustment: 0
  maxAlignment:    1
  adjustsStack:    false
  hasCalls:        true
  stackProtector:  ''
  maxCallFrameSize: 4294967295
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  savePoint:       ''
  restorePoint:    ''
fixedStack:
stack:
constants:
body:             |
  bb.0.entry:
    successors: %bb.1.entry._ZTW1k.exit_crit_edge(0x7fe00000), %bb.2.init.i.i(0x00200000)
    liveins: $a0_64, $t9_64

    %50 = LUi64 target-flags(mips-gpoff-hi) @_Z2k1i
    %51 = DADDu %50, $t9_64
    %43 = DADDiu %51, target-flags(mips-gpoff-lo) @_Z2k1i
    %5 = COPY $a0_64
    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    %6 = COPY %5.sub_32
    $a0_64 = COPY %5
    JAL @_Z1gi, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
    %7 = COPY $v0
    %8 = ADDu %7, killed %6
    %9 = LUi64 target-flags(mips-highest) @v
    %10 = DADDiu killed %9, target-flags(mips-higher) @v
    %11 = DSLL killed %10, 16
    %12 = DADDiu killed %11, target-flags(mips-abs-hi) @v
    %13 = DSLL killed %12, 16
    %14 = LW killed %13, target-flags(mips-abs-lo) @v :: (dereferenceable load (s32) from @v)
    %0 = ADDu killed %8, killed %14
    %15 = LUi64 target-flags(mips-tprel-hi) @__tls_guard
    %16 = DADDiu killed %15, target-flags(mips-tprel-lo) @__tls_guard
    %17 = RDHWR64 $hwr29, 0
    $v1_64 = COPY %17
    %18 = COPY $v1_64
    %19 = DADDu %18, killed %16
    %20 = LBu killed %19, 0 :: (dereferenceable load (s8) from @__tls_guard)
    BEQ killed %20, $zero, %bb.2.init.i.i, implicit-def dead $at
    J %bb.1.entry._ZTW1k.exit_crit_edge, implicit-def dead $at

  bb.1.entry._ZTW1k.exit_crit_edge:
    successors: %bb.3._ZTW1k.exit(0x80000000)

    %32 = LUi64 target-flags(mips-tprel-hi) @k
    %33 = DADDiu killed %32, target-flags(mips-tprel-lo) @k
    %34 = RDHWR64 $hwr29, 0
    $v1_64 = COPY %34
    %35 = COPY $v1_64
    %36 = DADDu %35, killed %33
    %1 = LW killed %36, 0 :: (dereferenceable load (s32) from @k)
    J %bb.3._ZTW1k.exit, implicit-def dead $at

  bb.2.init.i.i:
    successors: %bb.3._ZTW1k.exit(0x80000000)

    %21 = LUi64 target-flags(mips-tprel-hi) @__tls_guard
    %22 = DADDiu killed %21, target-flags(mips-tprel-lo) @__tls_guard
    %23 = RDHWR64 $hwr29, 0
    $v1_64 = COPY %23
    %24 = COPY $v1_64
    %25 = DADDu %24, killed %22
    %26 = ADDiu $zero, 1
    SB killed %26, killed %25, 0 :: (store (s8) into @__tls_guard)
    %27 = LUi64 target-flags(mips-tprel-hi) @k
    %28 = DADDiu killed %27, target-flags(mips-tprel-lo) @k
    %29 = DADDu %24, killed %28
    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    %30 = DADDiu $zero_64, 3
    $a0_64 = COPY %30
    JAL @_Z1gi, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
    %31 = COPY $v0
    SW %31, killed %29, 0 :: (store (s32) into @k)
    %2 = COPY %31

  bb.3._ZTW1k.exit:
    successors: %bb.4(0x40000000), %bb.5._ZTW1j.exit(0x40000000)

    %3 = PHI %2, %bb.2.init.i.i, %1, %bb.1.entry._ZTW1k.exit_crit_edge
    %4 = ADDu %0, %3
    %37 = LUi64 target-flags(mips-highest) @_ZTH1j
    %38 = DADDiu killed %37, target-flags(mips-higher) @_ZTH1j
    %39 = DSLL killed %38, 16
    %40 = DADDiu killed %39, target-flags(mips-abs-hi) @_ZTH1j
    %41 = DSLL killed %40, 16
    %42 = DADDiu killed %41, target-flags(mips-abs-lo) @_ZTH1j
    BEQ64 killed %42, $zero_64, %bb.5._ZTW1j.exit, implicit-def dead $at
    J %bb.4, implicit-def dead $at

  bb.4 (%ir-block.2):
    successors: %bb.5._ZTW1j.exit(0x80000000)

    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    JAL @_ZTH1j, csr_n64, implicit-def dead $ra, implicit-def $sp
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp

  bb.5._ZTW1j.exit:
    %44 = RDHWR64 $hwr29, 0
    $v1_64 = COPY %44
    %45 = LD %43, target-flags(mips-gottprel) @j :: (load (s64))
    %46 = COPY $v1_64
    %47 = DADDu %46, killed %45
    %48 = LW killed %47, 0 :: (dereferenceable load (s32) from @j)
    %49 = ADDu %4, killed %48
    $v0 = COPY %49
    RetRA implicit $v0

...