third_party/llvm-7.0/llvm/test/CodeGen/Mips/mirparser/target-flags-pic.mir

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

# A simple test to show that we can parse the target specific flags: gpoff-hi,
# gpoff-lo, got-call, got-disp.

--- |
  @v = global i32 0, align 4
  @j = external global i32, align 4

  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
    %1 = load i32, i32* @j, align 4
    %add2 = add nsw i32 %add1, %1
    ret i32 %add2
  }

  declare i32 @_Z1gi(i32 signext)
...
---
name:            _Z2k1i
alignment:       3
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr64, preferred-register: '' }
  - { id: 1, class: gpr64, preferred-register: '' }
  - { id: 2, class: gpr64, preferred-register: '' }
  - { id: 3, class: gpr32, preferred-register: '' }
  - { id: 4, class: gpr32, preferred-register: '' }
  - { id: 5, class: gpr32, preferred-register: '' }
  - { id: 6, class: gpr64, preferred-register: '' }
  - { id: 7, class: gpr32, preferred-register: '' }
  - { id: 8, class: gpr32, preferred-register: '' }
  - { id: 9, class: gpr64, preferred-register: '' }
  - { id: 10, class: gpr32, preferred-register: '' }
  - { id: 11, class: gpr32, preferred-register: '' }
  - { id: 12, class: gpr64, preferred-register: '' }
  - { id: 13, class: gpr64, preferred-register: '' }
liveins:
  - { reg: '$a0_64', virtual-reg: '%0' }
  - { reg: '$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:
    liveins: $a0_64, $t9_64

    %12 = LUi64 target-flags(mips-gpoff-hi) @_Z2k1i
    %13 = DADDu %12, $t9_64
    %1 = DADDiu %13, target-flags(mips-gpoff-lo) @_Z2k1i
    %0 = COPY $a0_64
    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    %2 = LD %1, target-flags(mips-got-call) @_Z1gi :: (load 8 from call-entry @_Z1gi)
    $a0_64 = COPY %0
    $gp_64 = COPY %1
    JALR64Pseudo killed %2, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit $gp_64, implicit-def $sp, implicit-def $v0
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
    %3 = COPY $v0
    %4 = COPY %0.sub_32
    %5 = ADDu %3, killed %4
    %6 = LD %1, target-flags(mips-got-disp) @v :: (load 8 from got)
    %7 = LW killed %6, 0 :: (dereferenceable load 4 from @v)
    %8 = ADDu killed %5, killed %7
    %9 = LD %1, target-flags(mips-got-disp) @j :: (load 8 from got)
    %10 = LW killed %9, 0 :: (dereferenceable load 4 from @j)
    %11 = ADDu killed %8, killed %10
    $v0 = COPY %11
    RetRA implicit $v0

...