third_party/llvm-7.0/llvm/test/CodeGen/ARM/GlobalISel/arm-select-globals-static.mir

# RUN: llc -O0 -mtriple arm-linux -relocation-model=static -mattr=+no-movt -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,ELF-NOMOVT
# RUN: llc -O0 -mtriple arm-linux -relocation-model=static -mattr=-no-movt,+v8m -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,ELF-MOVT
# RUN: llc -O0 -mtriple arm-darwin -relocation-model=static -mattr=+no-movt -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,DARWIN-NOMOVT
# RUN: llc -O0 -mtriple arm-darwin -relocation-model=static -mattr=-no-movt,+v8m -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,DARWIN-MOVT
--- |
  @internal_global = internal global i32 42
  define void @test_internal_global() { ret void }

  @external_global = external global i32
  define void @test_external_global() { ret void }
...
---
name:            test_internal_global
# CHECK-LABEL: name: test_internal_global
legalized:       true
regBankSelected: true
selected:        false
# CHECK: selected: true
registers:
  - { id: 0, class: gprb }
  - { id: 1, class: gprb }
# ELF-NOMOVT: constants:
# ELF-NOMOVT: id: 0
# ELF-NOMOVT: value: 'i32* @internal_global'
body:             |
  bb.0:
    %0(p0) = G_GLOBAL_VALUE @internal_global
    ; ELF-MOVT: [[G:%[0-9]+]]:gpr = MOVi32imm @internal_global
    ; ELF-NOMOVT: [[G:%[0-9]+]]:gpr = LDRi12 %const.0, 0, 14, $noreg :: (load 4 from constant-pool)
    ; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOVi32imm @internal_global
    ; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_abs @internal_global

    %1(s32) = G_LOAD %0(p0) :: (load 4 from @internal_global)
    ; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg

    $r0 = COPY %1(s32)
    ; CHECK: $r0 = COPY [[V]]

    BX_RET 14, $noreg, implicit $r0
    ; CHECK: BX_RET 14, $noreg, implicit $r0
...
---
name:            test_external_global
# CHECK-LABEL: name: test_external_global
legalized:       true
regBankSelected: true
selected:        false
# CHECK: selected: true
registers:
  - { id: 0, class: gprb }
  - { id: 1, class: gprb }
# ELF-NOMOVT: constants:
# ELF-NOMOVT: id: 0
# ELF-NOMOVT: value: 'i32* @external_global'
body:             |
  bb.0:
    %0(p0) = G_GLOBAL_VALUE @external_global
    ; ELF-MOVT: [[G:%[0-9]+]]:gpr = MOVi32imm @external_global
    ; ELF-NOMOVT: [[G:%[0-9]+]]:gpr = LDRi12 %const.0, 0, 14, $noreg :: (load 4 from constant-pool)
    ; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOVi32imm @external_global
    ; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_abs @external_global

    %1(s32) = G_LOAD %0(p0) :: (load 4 from @external_global)
    ; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg

    $r0 = COPY %1(s32)
    ; CHECK: $r0 = COPY [[V]]

    BX_RET 14, $noreg, implicit $r0
    ; CHECK: BX_RET 14, $noreg, implicit $r0
...