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_from_stack() { ret void } 6 7 define void @test_load_store_64_vfp() #0 { ret void } 8 define void @test_load_store_64_novfp() #1 { ret void } 9 10 define void @test_gep_s32() { ret void } 11 define void @test_gep_s16() { ret void } 12 13 attributes #0 = { "target-features"="+vfp2" } 14 attributes #1 = { "target-features"="-vfp2d16sp" } 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) 38 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s16), %0(p0) 39 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s8), %0(p0) 40 ; CHECK-DAG: G_STORE {{%[0-9]+}}(s1), %0(p0) 41 ; CHECK-DAG: G_STORE {{%[0-9]+}}(p0), %0(p0) 42 ; CHECK-DAG: {{%[0-9]+}}:_(s32) = G_LOAD %0(p0) 43 ; CHECK-DAG: {{%[0-9]+}}:_(s16) = G_LOAD %0(p0) 44 ; CHECK-DAG: {{%[0-9]+}}:_(s8) = G_LOAD %0(p0) 45 ; CHECK-DAG: {{%[0-9]+}}:_(s1) = G_LOAD %0(p0) 46 ; CHECK-DAG: {{%[0-9]+}}:_(p0) = G_LOAD %0(p0) 47 %0(p0) = COPY $r0 48 %2(s32) = G_LOAD %0(p0) :: (load 4) 49 G_STORE %2(s32), %0(p0) :: (store 4) 50 %3(s16) = G_LOAD %0(p0) :: (load 2) 51 G_STORE %3(s16), %0(p0) :: (store 2) 52 %4(s8) = G_LOAD %0(p0) :: (load 1) 53 G_STORE %4(s8), %0(p0) :: (store 1) 54 %5(s1) = G_LOAD %0(p0) :: (load 1) 55 G_STORE %5(s1), %0(p0) :: (store 1) 56 %6(p0) = G_LOAD %0(p0) :: (load 4) 57 G_STORE %6(p0), %0(p0) :: (store 4) 58 BX_RET 14, $noreg 59... 60--- 61name: test_load_from_stack 62# CHECK-LABEL: name: test_load_from_stack 63legalized: false 64# CHECK: legalized: true 65regBankSelected: false 66selected: false 67tracksRegLiveness: true 68registers: 69 - { id: 0, class: _ } 70 - { id: 1, class: _ } 71 - { id: 2, class: _ } 72 - { id: 3, class: _ } 73fixedStack: 74 - { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false } 75 - { id: 1, offset: 4, size: 4, alignment: 4, isImmutable: true, isAliased: false } 76 - { id: 2, offset: 8, size: 4, alignment: 4, isImmutable: true, isAliased: false } 77 # CHECK: id: [[FRAME_INDEX:[0-9]+]], type: default, offset: 8 78body: | 79 bb.0: 80 liveins: $r0, $r1, $r2, $r3 81 82 ; This is legal, so we should find it unchanged in the output 83 ; CHECK: [[FIVREG:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.[[FRAME_INDEX]] 84 ; CHECK: {{%[0-9]+}}:_(s32) = G_LOAD [[FIVREG]](p0) :: (load 4) 85 %0(p0) = G_FRAME_INDEX %fixed-stack.2 86 %1(s32) = G_LOAD %0(p0) :: (load 4) 87 $r0 = COPY %1(s32) 88 BX_RET 14, $noreg, implicit $r0 89... 90--- 91name: test_load_store_64_vfp 92# CHECK-LABEL: name: test_load_store_64_vfp 93legalized: false 94# CHECK: legalized: true 95regBankSelected: false 96selected: false 97tracksRegLiveness: true 98registers: 99 - { id: 0, class: _ } 100 - { id: 1, class: _ } 101 - { id: 2, class: _ } 102body: | 103 bb.0: 104 liveins: $r0 105 106 ; Can't use the VFP support for unaligned operations, we need to use 32-bits 107 ; operations instead. 108 ; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0 109 ; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4, align 1) 110 ; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4 111 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 112 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[ADDR2]](p0) :: (load 4, align 1) 113 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4, align 1) 114 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 115 ; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store 4, align 1) 116 %0(p0) = COPY $r0 117 %1(s64) = G_LOAD %0(p0) :: (load 8, align 1) 118 G_STORE %1(s64), %0(p0) :: (store 8, align 1) 119 120 ; For word-aligned we can use VFP operations. 121 ; CHECK: [[V:%[0-9]+]]:_(s64) = G_LOAD %0(p0) :: (load 8, align 4) 122 ; CHECK: G_STORE [[V]](s64), %0(p0) :: (store 8, align 4) 123 %2(s64) = G_LOAD %0(p0) :: (load 8, align 4) 124 G_STORE %2(s64), %0(p0) :: (store 8, align 4) 125 126 BX_RET 14, $noreg 127... 128--- 129name: test_load_store_64_novfp 130# CHECK-LABEL: name: test_load_store_64_novfp 131legalized: false 132# CHECK: legalized: true 133regBankSelected: false 134selected: false 135tracksRegLiveness: true 136registers: 137 - { id: 0, class: _ } 138 - { id: 1, class: _ } 139 - { id: 2, class: _ } 140body: | 141 bb.0: 142 liveins: $r0 143 144 ; When we don't have VFP support, we need to use 32-bit operations. 145 ; CHECK: [[ADDR1:%[0-9]+]]:_(p0) = COPY $r0 146 ; CHECK-NEXT: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4, align 1) 147 ; CHECK-NEXT: [[OFF:%[0-9]+]]:_(s32) = G_CONSTANT i32 4 148 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 149 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[ADDR2]](p0) :: (load 4, align 1) 150 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4, align 1) 151 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 152 ; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store 4, align 1) 153 %0(p0) = COPY $r0 154 %1(s64) = G_LOAD %0(p0) :: (load 8, align 1) 155 G_STORE %1(s64), %0(p0) :: (store 8, align 1) 156 157 ; CHECK: [[V1:%[0-9]+]]:_(s32) = G_LOAD [[ADDR1]](p0) :: (load 4) 158 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 159 ; CHECK-NEXT: [[V2:%[0-9]+]]:_(s32) = G_LOAD [[ADDR2]](p0) :: (load 4) 160 ; CHECK-NEXT: G_STORE [[V1]](s32), [[ADDR1]](p0) :: (store 4) 161 ; CHECK-NEXT: [[ADDR2:%[0-9]+]]:_(p0) = G_GEP [[ADDR1]], [[OFF]] 162 ; CHECK-NEXT: G_STORE [[V2]](s32), [[ADDR2]](p0) :: (store 4) 163 %2(s64) = G_LOAD %0(p0) :: (load 8, align 4) 164 G_STORE %2(s64), %0(p0) :: (store 8, align 4) 165 166 BX_RET 14, $noreg 167... 168--- 169name: test_gep_s32 170# CHECK-LABEL: name: test_gep_s32 171legalized: false 172# CHECK: legalized: true 173regBankSelected: false 174selected: false 175tracksRegLiveness: true 176registers: 177 - { id: 0, class: _ } 178 - { id: 1, class: _ } 179 - { id: 2, class: _ } 180body: | 181 bb.0: 182 liveins: $r0, $r1 183 184 %0(p0) = COPY $r0 185 %1(s32) = COPY $r1 186 187 ; CHECK: {{%[0-9]+}}:_(p0) = G_GEP {{%[0-9]+}}, {{%[0-9]+}}(s32) 188 %2(p0) = G_GEP %0, %1(s32) 189 190 $r0 = COPY %2(p0) 191 BX_RET 14, $noreg, implicit $r0 192... 193--- 194name: test_gep_s16 195# CHECK-LABEL: name: test_gep_s16 196legalized: false 197# CHECK: legalized: true 198regBankSelected: false 199selected: false 200tracksRegLiveness: true 201registers: 202 - { id: 0, class: _ } 203 - { id: 1, class: _ } 204 - { id: 2, class: _ } 205body: | 206 bb.0: 207 liveins: $r0 208 209 %0(p0) = COPY $r0 210 %1(s16) = G_LOAD %0(p0) :: (load 2) 211 212 ; CHECK-NOT: G_GEP {{%[0-9]+}}, {{%[0-9]+}}(s16) 213 ; CHECK: {{%[0-9]+}}:_(p0) = G_GEP {{%[0-9]+}}, {{%[0-9]+}}(s32) 214 ; CHECK-NOT: G_GEP {{%[0-9]+}}, {{%[0-9]+}}(s16) 215 %2(p0) = G_GEP %0, %1(s16) 216 217 $r0 = COPY %2(p0) 218 BX_RET 14, $noreg, implicit $r0 219... 220