1# RUN: llc -mtriple arm-- -run-pass=legalizer %s -o - | FileCheck %s 2# RUN: llc -mtriple thumbv7-- -run-pass=legalizer %s -o - | FileCheck %s 3--- | 4 define void @test_legal_loads_stores() { ret void } 5 define void @test_load_store_s1() { ret void } 6 define void @test_load_from_stack() { ret void } 7 8 define void @test_load_store_64_vfp() #0 { ret void } 9 define void @test_load_store_64_novfp() #1 { ret void } 10 11 define void @test_gep_s32() { ret void } 12 13 attributes #0 = { "target-features"="+vfp2" } 14 attributes #1 = { "target-features"="-vfp2sp" } 15... 16--- 17name: test_legal_loads_stores 18# CHECK-LABEL: name: test_legal_loads_stores 19legalized: false 20# CHECK: legalized: true 21regBankSelected: false 22selected: false 23tracksRegLiveness: true 24registers: 25 - { id: 0, class: _ } 26 - { id: 1, class: _ } 27 - { id: 2, class: _ } 28 - { id: 3, class: _ } 29 - { id: 4, class: _ } 30 - { id: 5, class: _ } 31 - { id: 6, class: _ } 32body: | 33 bb.0: 34 liveins: $r0 35 36 ; These are all legal, so we should find them unchanged in the output 37 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s32), %0(p0) :: (store (s32)) 38 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s16), %0(p0) :: (store (s16)) 39 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s8), %0(p0) :: (store (s8)) 40 ; CHECK-DAG: G_STORE {{%[0-9]+}}(p0), %0(p0) 41 ; CHECK-DAG: {{%[0-9]+}}:_(s32) = G_LOAD %0(p0) :: (load (s32)) 42 ; CHECK-DAG: {{%[0-9]+}}:_(s16) = G_LOAD %0(p0) :: (load (s16)) 43 ; CHECK-DAG: {{%[0-9]+}}:_(s8) = G_LOAD %0(p0) :: (load (s8)) 44 ; CHECK-DAG: {{%[0-9]+}}:_(p0) = G_LOAD %0(p0) :: (load (p0)) 45 %0(p0) = COPY $r0 46 %2(s32) = G_LOAD %0(p0) :: (load (s32)) 47 G_STORE %2(s32), %0(p0) :: (store (s32)) 48 %3(s16) = G_LOAD %0(p0) :: (load (s16)) 49 G_STORE %3(s16), %0(p0) :: (store (s16)) 50 %4(s8) = G_LOAD %0(p0) :: (load (s8)) 51 G_STORE %4(s8), %0(p0) :: (store (s8)) 52 %6(p0) = G_LOAD %0(p0) :: (load (p0)) 53 G_STORE %6(p0), %0(p0) :: (store (p0)) 54 BX_RET 14, $noreg 55... 56 57--- 58name: test_load_store_s1 59legalized: false 60# CHECK: legalized: true 61regBankSelected: false 62selected: false 63tracksRegLiveness: true 64body: | 65 bb.0: 66 liveins: $r0 67 68 ; CHECK: [[LD:%[0-9]+]]:_(s8) = G_LOAD %0(p0) :: (load (s8)) 69 ; CHECK: [[ASSERTZ:%[0-9]+]]:_(s8) = G_ASSERT_ZEXT [[LD]], 1 70 ; CHECK: [[ONE:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 71 ; CHECK: [[EXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ASSERTZ]] 72 ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[EXT]], [[ONE]] 73 ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[AND]] 74 ; CHECK: G_STORE [[TRUNC]](s8), {{%[0-9]+}}(p0) :: (store (s8)) 75 %0:_(p0) = COPY $r0 76 %5:_(s1) = G_LOAD %0(p0) :: (load (s1)) 77 G_STORE %5(s1), %0(p0) :: (store (s1)) 78 BX_RET 14, $noreg 79... 80--- 81name: test_load_from_stack 82# CHECK-LABEL: name: test_load_from_stack 83legalized: false 84# CHECK: legalized: true 85regBankSelected: false 86selected: false 87tracksRegLiveness: true 88registers: 89 - { id: 0, class: _ } 90 - { id: 1, class: _ } 91 - { id: 2, class: _ } 92 - { id: 3, class: _ } 93fixedStack: 94 - { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false } 95 - { id: 1, offset: 4, size: 4, alignment: 4, isImmutable: true, isAliased: false } 96 - { id: 2, offset: 8, size: 4, alignment: 4, isImmutable: true, isAliased: false } 97 # CHECK: id: [[FRAME_INDEX:[0-9]+]], type: default, offset: 8 98body: | 99 bb.0: 100 liveins: $r0, $r1, $r2, $r3 101 102 ; This is legal, so we should find it unchanged in the output 103 ; CHECK: [[FIVREG:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.[[FRAME_INDEX]] 104 ; CHECK: {{%[0-9]+}}:_(s32) = G_LOAD [[FIVREG]](p0) :: (load (s32)) 105 %0(p0) = G_FRAME_INDEX %fixed-stack.2 106 %1(s32) = G_LOAD %0(p0) :: (load (s32)) 107 $r0 = COPY %1(s32) 108 BX_RET 14, $noreg, implicit $r0 109... 110--- 111name: test_load_store_64_vfp 112# CHECK-LABEL: name: test_load_store_64_vfp 113legalized: false 114# CHECK: legalized: true 115regBankSelected: false 116selected: false 117tracksRegLiveness: true 118registers: 119 - { id: 0, class: _ } 120 - { id: 1, class: _ } 121 - { id: 2, class: _ } 122body: | 123 bb.0: 124 liveins: $r0 125 126 ; Can't use the VFP support for unaligned operations, we need to use 32-bits 127 ; operations instead. 128 ; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0 129 ; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load (s32), align 1) 130 ; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4 131 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_PTR_ADD [[ADDR1]], [[OFF]] 132 ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY [[ADDR2]] 133 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p0) :: (load (s32) from unknown-address + 4, align 1) 134 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store (s32), align 1) 135 ; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store (s32) into unknown-address + 4, align 1) 136 %0(p0) = COPY $r0 137 %1(s64) = G_LOAD %0(p0) :: (load (s64), align 1) 138 G_STORE %1(s64), %0(p0) :: (store (s64), align 1) 139 140 ; For word-aligned we can use VFP operations. 141 ; CHECK: [[V:%[0-9]+]]:_(s64) = G_LOAD %0(p0) :: (load (s64), align 4) 142 ; CHECK: G_STORE [[V]](s64), %0(p0) :: (store (s64), align 4) 143 %2(s64) = G_LOAD %0(p0) :: (load (s64), align 4) 144 G_STORE %2(s64), %0(p0) :: (store (s64), align 4) 145 146 BX_RET 14, $noreg 147... 148--- 149name: test_load_store_64_novfp 150# CHECK-LABEL: name: test_load_store_64_novfp 151legalized: false 152# CHECK: legalized: true 153regBankSelected: false 154selected: false 155tracksRegLiveness: true 156registers: 157 - { id: 0, class: _ } 158 - { id: 1, class: _ } 159 - { id: 2, class: _ } 160body: | 161 bb.0: 162 liveins: $r0 163 164 ; When we don't have VFP support, we need to use 32-bit operations. 165 ; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0 166 ; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load (s32), align 1) 167 ; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4 168 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_PTR_ADD [[ADDR1]], [[OFF]] 169 ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY [[ADDR2]] 170 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p0) :: (load (s32) from unknown-address + 4, align 1) 171 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store (s32), align 1) 172 ; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(p0) = COPY [[ADDR2]] 173 ; CHECK-NEXT: G_STORE [[V2]](s32), [[COPY2]](p0) :: (store (s32) into unknown-address + 4, align 1) 174 %0(p0) = COPY $r0 175 %1(s64) = G_LOAD %0(p0) :: (load (s64), align 1) 176 G_STORE %1(s64), %0(p0) :: (store (s64), align 1) 177 178 ; CHECK: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load (s32)) 179 ; CHECK-NEXT: [[COPY3:%[0-9]+]]:_(p0) = COPY [[ADDR2]] 180 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[COPY3]](p0) :: (load (s32) from unknown-address + 4) 181 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store (s32)) 182 ; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store (s32) into unknown-address + 4) 183 %2(s64) = G_LOAD %0(p0) :: (load (s64), align 4) 184 G_STORE %2(s64), %0(p0) :: (store (s64), align 4) 185 186 BX_RET 14, $noreg 187... 188--- 189name: test_gep_s32 190# CHECK-LABEL: name: test_gep_s32 191legalized: false 192# CHECK: legalized: true 193regBankSelected: false 194selected: false 195tracksRegLiveness: true 196registers: 197 - { id: 0, class: _ } 198 - { id: 1, class: _ } 199 - { id: 2, class: _ } 200body: | 201 bb.0: 202 liveins: $r0, $r1 203 204 %0(p0) = COPY $r0 205 %1(s32) = COPY $r1 206 207 ; CHECK: {{%[0-9]+}}:_(p0) = G_PTR_ADD {{%[0-9]+}}, {{%[0-9]+}}(s32) 208 %2(p0) = G_PTR_ADD %0, %1(s32) 209 210 $r0 = COPY %2(p0) 211 BX_RET 14, $noreg, implicit $r0 212... 213