1 ; RUN: llc < %s -mtriple=arm-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android 2 ; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux 3 4 ; We used to crash with filetype=obj 5 ; RUN: llc < %s -mtriple=arm-linux-androideabi -filetype=obj 6 ; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -filetype=obj 7 8 9 ; Just to prevent the alloca from being optimized away 10 declare void @dummy_use(i32*, i32) 11 12 define void @test_basic() #0 { 13 %mem = alloca i32, i32 10 14 call void @dummy_use (i32* %mem, i32 10) 15 ret void 16 17 ; ARM-linux: test_basic: 18 19 ; ARM-linux: push {r4, r5} 20 ; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3 21 ; ARM-linux-NEXT: mov r5, sp 22 ; ARM-linux-NEXT: ldr r4, [r4, #4] 23 ; ARM-linux-NEXT: cmp r4, r5 24 ; ARM-linux-NEXT: blo .LBB0_2 25 26 ; ARM-linux: mov r4, #48 27 ; ARM-linux-NEXT: mov r5, #0 28 ; ARM-linux-NEXT: stmdb sp!, {lr} 29 ; ARM-linux-NEXT: bl __morestack 30 ; ARM-linux-NEXT: ldm sp!, {lr} 31 ; ARM-linux-NEXT: pop {r4, r5} 32 ; ARM-linux-NEXT: bx lr 33 34 ; ARM-linux: pop {r4, r5} 35 36 ; ARM-android: test_basic: 37 38 ; ARM-android: push {r4, r5} 39 ; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3 40 ; ARM-android-NEXT: mov r5, sp 41 ; ARM-android-NEXT: ldr r4, [r4, #252] 42 ; ARM-android-NEXT: cmp r4, r5 43 ; ARM-android-NEXT: blo .LBB0_2 44 45 ; ARM-android: mov r4, #48 46 ; ARM-android-NEXT: mov r5, #0 47 ; ARM-android-NEXT: stmdb sp!, {lr} 48 ; ARM-android-NEXT: bl __morestack 49 ; ARM-android-NEXT: ldm sp!, {lr} 50 ; ARM-android-NEXT: pop {r4, r5} 51 ; ARM-android-NEXT: bx lr 52 53 ; ARM-android: pop {r4, r5} 54 55 } 56 57 define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { 58 %addend = load i32 , i32 * %closure 59 %result = add i32 %other, %addend 60 %mem = alloca i32, i32 10 61 call void @dummy_use (i32* %mem, i32 10) 62 ret i32 %result 63 64 ; ARM-linux: test_nested: 65 66 ; ARM-linux: push {r4, r5} 67 ; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3 68 ; ARM-linux-NEXT: mov r5, sp 69 ; ARM-linux-NEXT: ldr r4, [r4, #4] 70 ; ARM-linux-NEXT: cmp r4, r5 71 ; ARM-linux-NEXT: blo .LBB1_2 72 73 ; ARM-linux: mov r4, #56 74 ; ARM-linux-NEXT: mov r5, #0 75 ; ARM-linux-NEXT: stmdb sp!, {lr} 76 ; ARM-linux-NEXT: bl __morestack 77 ; ARM-linux-NEXT: ldm sp!, {lr} 78 ; ARM-linux-NEXT: pop {r4, r5} 79 ; ARM-linux-NEXT: bx lr 80 81 ; ARM-linux: pop {r4, r5} 82 83 ; ARM-android: test_nested: 84 85 ; ARM-android: push {r4, r5} 86 ; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3 87 ; ARM-android-NEXT: mov r5, sp 88 ; ARM-android-NEXT: ldr r4, [r4, #252] 89 ; ARM-android-NEXT: cmp r4, r5 90 ; ARM-android-NEXT: blo .LBB1_2 91 92 ; ARM-android: mov r4, #56 93 ; ARM-android-NEXT: mov r5, #0 94 ; ARM-android-NEXT: stmdb sp!, {lr} 95 ; ARM-android-NEXT: bl __morestack 96 ; ARM-android-NEXT: ldm sp!, {lr} 97 ; ARM-android-NEXT: pop {r4, r5} 98 ; ARM-android-NEXT: bx lr 99 100 ; ARM-android: pop {r4, r5} 101 102 } 103 104 define void @test_large() #0 { 105 %mem = alloca i32, i32 10000 106 call void @dummy_use (i32* %mem, i32 0) 107 ret void 108 109 ; ARM-linux: test_large: 110 111 ; ARM-linux: push {r4, r5} 112 ; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3 113 ; ARM-linux-NEXT: sub r5, sp, #40192 114 ; ARM-linux-NEXT: ldr r4, [r4, #4] 115 ; ARM-linux-NEXT: cmp r4, r5 116 ; ARM-linux-NEXT: blo .LBB2_2 117 118 ; ARM-linux: mov r4, #40192 119 ; ARM-linux-NEXT: mov r5, #0 120 ; ARM-linux-NEXT: stmdb sp!, {lr} 121 ; ARM-linux-NEXT: bl __morestack 122 ; ARM-linux-NEXT: ldm sp!, {lr} 123 ; ARM-linux-NEXT: pop {r4, r5} 124 ; ARM-linux-NEXT: bx lr 125 126 ; ARM-linux: pop {r4, r5} 127 128 ; ARM-android: test_large: 129 130 ; ARM-android: push {r4, r5} 131 ; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3 132 ; ARM-android-NEXT: sub r5, sp, #40192 133 ; ARM-android-NEXT: ldr r4, [r4, #252] 134 ; ARM-android-NEXT: cmp r4, r5 135 ; ARM-android-NEXT: blo .LBB2_2 136 137 ; ARM-android: mov r4, #40192 138 ; ARM-android-NEXT: mov r5, #0 139 ; ARM-android-NEXT: stmdb sp!, {lr} 140 ; ARM-android-NEXT: bl __morestack 141 ; ARM-android-NEXT: ldm sp!, {lr} 142 ; ARM-android-NEXT: pop {r4, r5} 143 ; ARM-android-NEXT: bx lr 144 145 ; ARM-android: pop {r4, r5} 146 147 } 148 149 define fastcc void @test_fastcc() #0 { 150 %mem = alloca i32, i32 10 151 call void @dummy_use (i32* %mem, i32 10) 152 ret void 153 154 ; ARM-linux: test_fastcc: 155 156 ; ARM-linux: push {r4, r5} 157 ; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3 158 ; ARM-linux-NEXT: mov r5, sp 159 ; ARM-linux-NEXT: ldr r4, [r4, #4] 160 ; ARM-linux-NEXT: cmp r4, r5 161 ; ARM-linux-NEXT: blo .LBB3_2 162 163 ; ARM-linux: mov r4, #48 164 ; ARM-linux-NEXT: mov r5, #0 165 ; ARM-linux-NEXT: stmdb sp!, {lr} 166 ; ARM-linux-NEXT: bl __morestack 167 ; ARM-linux-NEXT: ldm sp!, {lr} 168 ; ARM-linux-NEXT: pop {r4, r5} 169 ; ARM-linux-NEXT: bx lr 170 171 ; ARM-linux: pop {r4, r5} 172 173 ; ARM-android: test_fastcc: 174 175 ; ARM-android: push {r4, r5} 176 ; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3 177 ; ARM-android-NEXT: mov r5, sp 178 ; ARM-android-NEXT: ldr r4, [r4, #252] 179 ; ARM-android-NEXT: cmp r4, r5 180 ; ARM-android-NEXT: blo .LBB3_2 181 182 ; ARM-android: mov r4, #48 183 ; ARM-android-NEXT: mov r5, #0 184 ; ARM-android-NEXT: stmdb sp!, {lr} 185 ; ARM-android-NEXT: bl __morestack 186 ; ARM-android-NEXT: ldm sp!, {lr} 187 ; ARM-android-NEXT: pop {r4, r5} 188 ; ARM-android-NEXT: bx lr 189 190 ; ARM-android: pop {r4, r5} 191 192 } 193 194 define fastcc void @test_fastcc_large() #0 { 195 %mem = alloca i32, i32 10000 196 call void @dummy_use (i32* %mem, i32 0) 197 ret void 198 199 ; ARM-linux: test_fastcc_large: 200 201 ; ARM-linux: push {r4, r5} 202 ; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3 203 ; ARM-linux-NEXT: sub r5, sp, #40192 204 ; ARM-linux-NEXT: ldr r4, [r4, #4] 205 ; ARM-linux-NEXT: cmp r4, r5 206 ; ARM-linux-NEXT: blo .LBB4_2 207 208 ; ARM-linux: mov r4, #40192 209 ; ARM-linux-NEXT: mov r5, #0 210 ; ARM-linux-NEXT: stmdb sp!, {lr} 211 ; ARM-linux-NEXT: bl __morestack 212 ; ARM-linux-NEXT: ldm sp!, {lr} 213 ; ARM-linux-NEXT: pop {r4, r5} 214 ; ARM-linux-NEXT: bx lr 215 216 ; ARM-linux: pop {r4, r5} 217 218 ; ARM-android: test_fastcc_large: 219 220 ; ARM-android: push {r4, r5} 221 ; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3 222 ; ARM-android-NEXT: sub r5, sp, #40192 223 ; ARM-android-NEXT: ldr r4, [r4, #252] 224 ; ARM-android-NEXT: cmp r4, r5 225 ; ARM-android-NEXT: blo .LBB4_2 226 227 ; ARM-android: mov r4, #40192 228 ; ARM-android-NEXT: mov r5, #0 229 ; ARM-android-NEXT: stmdb sp!, {lr} 230 ; ARM-android-NEXT: bl __morestack 231 ; ARM-android-NEXT: ldm sp!, {lr} 232 ; ARM-android-NEXT: pop {r4, r5} 233 ; ARM-android-NEXT: bx lr 234 235 ; ARM-android: pop {r4, r5} 236 237 } 238 239 define void @test_nostack() #0 { 240 ret void 241 242 ; ARM-linux-LABEL: test_nostack: 243 ; ARM-linux-NOT: bl __morestack 244 245 ; ARM-android-LABEL: test_nostack: 246 ; ARM-android-NOT: bl __morestack 247 } 248 249 attributes #0 = { "split-stack" } 250
