arm-select-globals-pic.mir
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# RUN: llc -O0 -mtriple arm-linux -relocation-model=pic -mattr=+no-movt -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,ELF
# RUN: llc -O0 -mtriple arm-linux -relocation-model=pic -mattr=-no-movt,+v8m -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK,ELF
# RUN: llc -O0 -mtriple arm-darwin -relocation-model=pic -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=pic -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 }
@internal_constant = internal constant i32 42
define void @test_internal_constant() { ret void }
@external_constant = external constant i32
define void @test_external_constant() { 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 }
body: |
bb.0:
%0(p0) = G_GLOBAL_VALUE @internal_global
; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOV_ga_pcrel target-flags(arm-nonlazy) @internal_global
; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel target-flags(arm-nonlazy) @internal_global
; ELF: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel @internal_global
%1(s32) = G_LOAD %0(p0) :: (load 4 from @internal_global)
; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg :: (load 4 from @internal_global)
$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 }
body: |
bb.0:
%0(p0) = G_GLOBAL_VALUE @external_global
; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOV_ga_pcrel_ldr target-flags(arm-nonlazy) @external_global :: (load 4 from got)
; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel_ldr target-flags(arm-nonlazy) @external_global :: (load 4 from got)
; ELF: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel_ldr target-flags(arm-got) @external_global :: (load 4 from got)
%1(s32) = G_LOAD %0(p0) :: (load 4 from @external_global)
; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg :: (load 4 from @external_global)
$r0 = COPY %1(s32)
; CHECK: $r0 = COPY [[V]]
BX_RET 14, $noreg, implicit $r0
; CHECK: BX_RET 14, $noreg, implicit $r0
...
---
name: test_internal_constant
# CHECK-LABEL: name: test_internal_constant
legalized: true
regBankSelected: true
selected: false
# CHECK: selected: true
registers:
- { id: 0, class: gprb }
- { id: 1, class: gprb }
body: |
bb.0:
%0(p0) = G_GLOBAL_VALUE @internal_constant
; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOV_ga_pcrel target-flags(arm-nonlazy) @internal_constant
; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel target-flags(arm-nonlazy) @internal_constant
; ELF: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel @internal_constant
%1(s32) = G_LOAD %0(p0) :: (load 4 from @internal_constant)
; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg :: (load 4 from @internal_constant)
$r0 = COPY %1(s32)
; CHECK: $r0 = COPY [[V]]
BX_RET 14, $noreg, implicit $r0
; CHECK: BX_RET 14, $noreg, implicit $r0
...
---
name: test_external_constant
# CHECK-LABEL: name: test_external_constant
legalized: true
regBankSelected: true
selected: false
# CHECK: selected: true
registers:
- { id: 0, class: gprb }
- { id: 1, class: gprb }
body: |
bb.0:
%0(p0) = G_GLOBAL_VALUE @external_constant
; DARWIN-MOVT: [[G:%[0-9]+]]:gpr = MOV_ga_pcrel_ldr target-flags(arm-nonlazy) @external_constant :: (load 4 from got)
; DARWIN-NOMOVT: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel_ldr target-flags(arm-nonlazy) @external_constant :: (load 4 from got)
; ELF: [[G:%[0-9]+]]:gpr = LDRLIT_ga_pcrel_ldr target-flags(arm-got) @external_constant :: (load 4 from got)
%1(s32) = G_LOAD %0(p0) :: (load 4 from @external_constant)
; CHECK: [[V:%[0-9]+]]:gpr = LDRi12 [[G]], 0, 14, $noreg :: (load 4 from @external_constant)
$r0 = COPY %1(s32)
; CHECK: $r0 = COPY [[V]]
BX_RET 14, $noreg, implicit $r0
; CHECK: BX_RET 14, $noreg, implicit $r0
...