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llvm-mirror/test/CodeGen/ARM/GlobalISel/arm-legalize-load-store.mir
Eli Friedman 50e1810fbf [SelectionDAG] Always preserve offset in MachinePointerInfo
Previously, getWithOffset() would drop the offset if the base was null.
Because of this, MachineMemOperand would return the wrong result from
getAlign() in these cases.  MachineMemOperand stores the alignment of
the pointer without the offset.

A bunch of MIR tests changed because we print the offset now.

Split off from D77687.

Differential Revision: https://reviews.llvm.org/D78049
2020-04-14 15:29:41 -07:00

220 lines
7.2 KiB
YAML

# RUN: llc -mtriple arm-- -run-pass=legalizer %s -o - | FileCheck %s
# RUN: llc -mtriple thumbv7-- -run-pass=legalizer %s -o - | FileCheck %s
--- |
define void @test_legal_loads_stores() { ret void }
define void @test_load_from_stack() { ret void }
define void @test_load_store_64_vfp() #0 { ret void }
define void @test_load_store_64_novfp() #1 { ret void }
define void @test_gep_s32() { ret void }
define void @test_gep_s16() { ret void }
attributes #0 = { "target-features"="+vfp2" }
attributes #1 = { "target-features"="-vfp2sp" }
...
---
name: test_legal_loads_stores
# CHECK-LABEL: name: test_legal_loads_stores
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
- { id: 6, class: _ }
body: |
bb.0:
liveins: $r0
; These are all legal, so we should find them unchanged in the output
; CHECK-DAG: G_STORE {{%[0-9]+}}(s32), %0(p0)
; CHECK-DAG: G_STORE {{%[0-9]+}}(s16), %0(p0)
; CHECK-DAG: G_STORE {{%[0-9]+}}(s8), %0(p0)
; CHECK-DAG: G_STORE {{%[0-9]+}}(s1), %0(p0)
; CHECK-DAG: G_STORE {{%[0-9]+}}(p0), %0(p0)
; CHECK-DAG: {{%[0-9]+}}:_(s32) = G_LOAD %0(p0)
; CHECK-DAG: {{%[0-9]+}}:_(s16) = G_LOAD %0(p0)
; CHECK-DAG: {{%[0-9]+}}:_(s8) = G_LOAD %0(p0)
; CHECK-DAG: {{%[0-9]+}}:_(s1) = G_LOAD %0(p0)
; CHECK-DAG: {{%[0-9]+}}:_(p0) = G_LOAD %0(p0)
%0(p0) = COPY $r0
%2(s32) = G_LOAD %0(p0) :: (load 4)
G_STORE %2(s32), %0(p0) :: (store 4)
%3(s16) = G_LOAD %0(p0) :: (load 2)
G_STORE %3(s16), %0(p0) :: (store 2)
%4(s8) = G_LOAD %0(p0) :: (load 1)
G_STORE %4(s8), %0(p0) :: (store 1)
%5(s1) = G_LOAD %0(p0) :: (load 1)
G_STORE %5(s1), %0(p0) :: (store 1)
%6(p0) = G_LOAD %0(p0) :: (load 4)
G_STORE %6(p0), %0(p0) :: (store 4)
BX_RET 14, $noreg
...
---
name: test_load_from_stack
# CHECK-LABEL: name: test_load_from_stack
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
fixedStack:
- { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false }
- { id: 1, offset: 4, size: 4, alignment: 4, isImmutable: true, isAliased: false }
- { id: 2, offset: 8, size: 4, alignment: 4, isImmutable: true, isAliased: false }
# CHECK: id: [[FRAME_INDEX:[0-9]+]], type: default, offset: 8
body: |
bb.0:
liveins: $r0, $r1, $r2, $r3
; This is legal, so we should find it unchanged in the output
; CHECK: [[FIVREG:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.[[FRAME_INDEX]]
; CHECK: {{%[0-9]+}}:_(s32) = G_LOAD [[FIVREG]](p0) :: (load 4)
%0(p0) = G_FRAME_INDEX %fixed-stack.2
%1(s32) = G_LOAD %0(p0) :: (load 4)
$r0 = COPY %1(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_load_store_64_vfp
# CHECK-LABEL: name: test_load_store_64_vfp
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
body: |
bb.0:
liveins: $r0
; Can't use the VFP support for unaligned operations, we need to use 32-bits
; operations instead.
; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0
; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4, align 1)
; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_PTR_ADD [[ADDR1]], [[OFF]]
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY [[ADDR2]]
; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p0) :: (load 4 + 4, align 1)
; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4, align 1)
; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store 4 + 4, align 1)
%0(p0) = COPY $r0
%1(s64) = G_LOAD %0(p0) :: (load 8, align 1)
G_STORE %1(s64), %0(p0) :: (store 8, align 1)
; For word-aligned we can use VFP operations.
; CHECK: [[V:%[0-9]+]]:_(s64) = G_LOAD %0(p0) :: (load 8, align 4)
; CHECK: G_STORE [[V]](s64), %0(p0) :: (store 8, align 4)
%2(s64) = G_LOAD %0(p0) :: (load 8, align 4)
G_STORE %2(s64), %0(p0) :: (store 8, align 4)
BX_RET 14, $noreg
...
---
name: test_load_store_64_novfp
# CHECK-LABEL: name: test_load_store_64_novfp
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
body: |
bb.0:
liveins: $r0
; When we don't have VFP support, we need to use 32-bit operations.
; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0
; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4, align 1)
; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_PTR_ADD [[ADDR1]], [[OFF]]
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY [[ADDR2]]
; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p0) :: (load 4 + 4, align 1)
; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4, align 1)
; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(p0) = COPY [[ADDR2]]
; CHECK-NEXT: G_STORE [[V2]](s32), [[COPY2]](p0) :: (store 4 + 4, align 1)
%0(p0) = COPY $r0
%1(s64) = G_LOAD %0(p0) :: (load 8, align 1)
G_STORE %1(s64), %0(p0) :: (store 8, align 1)
; CHECK: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4)
; CHECK-NEXT: [[COPY3:%[0-9]+]]:_(p0) = COPY [[ADDR2]]
; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY3]](p0) :: (load 4 + 4)
; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4)
; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store 4 + 4)
%2(s64) = G_LOAD %0(p0) :: (load 8, align 4)
G_STORE %2(s64), %0(p0) :: (store 8, align 4)
BX_RET 14, $noreg
...
---
name: test_gep_s32
# CHECK-LABEL: name: test_gep_s32
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
body: |
bb.0:
liveins: $r0, $r1
%0(p0) = COPY $r0
%1(s32) = COPY $r1
; CHECK: {{%[0-9]+}}:_(p0) = G_PTR_ADD {{%[0-9]+}}, {{%[0-9]+}}(s32)
%2(p0) = G_PTR_ADD %0, %1(s32)
$r0 = COPY %2(p0)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_gep_s16
# CHECK-LABEL: name: test_gep_s16
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
body: |
bb.0:
liveins: $r0
%0(p0) = COPY $r0
%1(s16) = G_LOAD %0(p0) :: (load 2)
; CHECK-NOT: G_PTR_ADD {{%[0-9]+}}, {{%[0-9]+}}(s16)
; CHECK: {{%[0-9]+}}:_(p0) = G_PTR_ADD {{%[0-9]+}}, {{%[0-9]+}}(s32)
; CHECK-NOT: G_PTR_ADD {{%[0-9]+}}, {{%[0-9]+}}(s16)
%2(p0) = G_PTR_ADD %0, %1(s16)
$r0 = COPY %2(p0)
BX_RET 14, $noreg, implicit $r0
...