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1# REQUIRES: asserts2# RUN: llc -run-pass arm-cp-islands %s -o - | FileCheck %s3#4# This is a reduced test made to expose a bug in5# ARMConstantIslandPass in Thumb1 mode, see PR36658.6 7# Verify optimized JT code uses TBB instructions.8# CHECK-LABEL: bb.7.entry:9# CHECK: tTBB_JT $pc, killed $r2, %jump-table.1, 010# CHECK-LABEL: bb.8:11# CHECK: JUMPTABLE_TBB 0, %jump-table.1, 4412 13# CHECK-LABEL: bb.11.entry:14# CHECK: $r1 = tMOVSr $r0, implicit-def dead $cpsr15# CHECK: tTBB_JT $pc, killed $r2, %jump-table.0, 116# CHECK-LABEL: bb.12:17# CHECK: JUMPTABLE_TBB 1, %jump-table.0, 4418 19--- |20 ; ModuleID = 'PR36658.ll'21 source_filename = "PR36658.ll"22 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"23 target triple = "thumbv5e-none-linux-gnueabi"24 25 declare i32 @foo1(...)26 27 declare i32 @foo2(i32)28 29 declare i32 @foo3(ptr)30 31 ; Function Attrs: nounwind optsize32 define internal fastcc i32 @foo4(ptr nocapture %ignore_ptr) #0 {33 entry:34 %call = tail call i32 @foo3(ptr undef)35 switch i32 %call, label %sw.epilog [36 i32 120, label %sw.bb37 i32 48, label %sw.bb7338 i32 49, label %sw.bb7339 i32 50, label %sw.bb7340 i32 51, label %sw.bb7341 i32 52, label %sw.bb7342 i32 53, label %sw.bb7343 i32 54, label %sw.bb7344 i32 55, label %sw.bb7345 i32 92, label %cleanup46 i32 39, label %cleanup47 i32 34, label %cleanup48 i32 10, label %sw.bb9149 i32 110, label %sw.bb9350 i32 116, label %sw.bb9451 i32 114, label %sw.bb9552 i32 102, label %sw.bb9653 i32 98, label %sw.bb9754 i32 97, label %sw.bb9855 i32 118, label %sw.bb10656 i32 101, label %sw.bb10757 i32 69, label %sw.bb10758 i32 63, label %cleanup59 ]60 61 sw.bb: ; preds = %entry62 br label %while.cond63 64 while.cond: ; preds = %while.cond, %sw.bb65 %call5 = tail call i32 @foo3(ptr null)66 br label %while.cond67 68 sw.bb73: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry69 %0 = and i32 %call, -870 %1 = icmp eq i32 %0, 4871 br i1 %1, label %while.body83.preheader, label %while.end8872 73 while.body83.preheader: ; preds = %sw.bb7374 br label %while.body8375 76 while.body83: ; preds = %while.body83.preheader, %while.body8377 %call87 = tail call i32 @foo3(ptr null)78 br label %while.body8379 80 while.end88: ; preds = %sw.bb7381 %call89 = tail call i32 @foo2(i32 %call)82 unreachable83 84 sw.bb91: ; preds = %entry85 store i32 1, ptr %ignore_ptr, align 486 br label %cleanup87 88 sw.bb93: ; preds = %entry89 br label %cleanup90 91 sw.bb94: ; preds = %entry92 br label %cleanup93 94 sw.bb95: ; preds = %entry95 br label %cleanup96 97 sw.bb96: ; preds = %entry98 br label %cleanup99 100 sw.bb97: ; preds = %entry101 br label %cleanup102 103 sw.bb98: ; preds = %entry104 br label %cleanup105 106 sw.bb106: ; preds = %entry107 br label %cleanup108 109 sw.bb107: ; preds = %entry, %entry110 br i1 undef, label %cleanup, label %if.then109111 112 if.then109: ; preds = %sw.bb107113 %call110 = tail call i32 @foo1(ptr undef, i32 %call)114 unreachable115 116 sw.epilog: ; preds = %entry117 %call.off = add i32 %call, -32118 unreachable119 120 cleanup: ; preds = %sw.bb107, %sw.bb106, %sw.bb98, %sw.bb97, %sw.bb96, %sw.bb95, %sw.bb94, %sw.bb93, %sw.bb91, %entry, %entry, %entry, %entry121 %retval.0 = phi i32 [ 11, %sw.bb106 ], [ 7, %sw.bb98 ], [ 8, %sw.bb97 ], [ 12, %sw.bb96 ], [ 13, %sw.bb95 ], [ 9, %sw.bb94 ], [ 10, %sw.bb93 ], [ 0, %sw.bb91 ], [ %call, %entry ], [ %call, %entry ], [ %call, %entry ], [ 27, %sw.bb107 ], [ %call, %entry ]122 ret i32 %retval.0123 }124 125 ; Function Attrs: nounwind126 declare void @llvm.stackprotector(ptr, ptr) #1127 128 attributes #0 = { nounwind optsize }129 attributes #1 = { nounwind }130 131...132---133name: foo4134alignment: 2135tracksRegLiveness: true136liveins:137 - { reg: '$r0' }138frameInfo:139 stackSize: 8140 maxAlignment: 4141 adjustsStack: true142 hasCalls: true143 maxCallFrameSize: 0144stack:145 - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: default,146 callee-saved-register: '$lr', callee-saved-restored: false }147 - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: default,148 callee-saved-register: '$r4' }149jumpTable:150 kind: inline151 entries:152 - id: 0153 blocks: [ '%bb.28', '%bb.26', '%bb.26', '%bb.26', '%bb.26',154 '%bb.24', '%bb.23', '%bb.26', '%bb.26', '%bb.12',155 '%bb.22' ]156 - id: 1157 blocks: [ '%bb.19', '%bb.26', '%bb.26', '%bb.26', '%bb.21',158 '%bb.26', '%bb.20', '%bb.26', '%bb.25', '%bb.26',159 '%bb.15' ]160body: |161 bb.0.entry:162 successors: %bb.1(0x42c8590b), %bb.9(0x3d37a6f5)163 liveins: $r0, $r4, $lr164 165 frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp166 frame-setup CFI_INSTRUCTION def_cfa_offset 8167 frame-setup CFI_INSTRUCTION offset $lr, -4168 frame-setup CFI_INSTRUCTION offset $r4, -8169 $r4 = tMOVSr $r0, implicit-def dead $cpsr170 tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit undef $r0, implicit-def $sp, implicit-def $r0171 $r1 = tMOVSr $r0, implicit-def dead $cpsr172 tCMPi8 $r0, 68, 14, $noreg, implicit-def $cpsr173 tBcc %bb.9, 12, killed $cpsr174 175 bb.1.entry:176 successors: %bb.2(0x20000000), %bb.7(0x60000000)177 liveins: $r0, $r1, $r4178 179 tCMPi8 renamable $r1, 47, 14, $noreg, implicit-def $cpsr180 tBcc %bb.2, 13, killed $cpsr181 182 bb.7.entry:183 successors: %bb.16(0x71c71c72), %bb.8(0x0e38e38e)184 liveins: $r0, $r1185 186 $r2 = tMOVSr $r1, implicit-def dead $cpsr187 renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 48, 14, $noreg188 tCMPi8 killed renamable $r2, 8, 14, $noreg, implicit-def $cpsr189 tBcc %bb.8, 2, killed $cpsr190 191 bb.16.sw.bb73:192 successors: %bb.17(0x7fffffff), %bb.18(0x00000001)193 liveins: $r0, $r1194 195 renamable $r2, dead $cpsr = tMOVi8 7, 14, $noreg196 renamable $r1, dead $cpsr = tBIC killed renamable $r1, killed renamable $r2, 14, $noreg197 tCMPi8 killed renamable $r1, 48, 14, $noreg, implicit-def $cpsr198 tBcc %bb.18, 1, killed $cpsr199 200 bb.17.while.body83:201 renamable $r0, dead $cpsr = tMOVi8 0, 14, $noreg202 tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0203 tB %bb.17, 14, $noreg204 205 bb.9.entry:206 successors: %bb.10(0x45d1745d), %bb.29(0x3a2e8ba3)207 liveins: $r0, $r1208 209 $r2 = tMOVSr $r1, implicit-def dead $cpsr210 renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 92, 14, $noreg211 tCMPi8 renamable $r2, 10, 14, $noreg, implicit-def $cpsr212 tBcc %bb.29, 9, killed $cpsr213 214 bb.10.entry:215 successors: %bb.11(0x15555555), %bb.14(0x6aaaaaab)216 liveins: $r0, $r1217 218 $r2 = tMOVSr $r1, implicit-def dead $cpsr219 renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 110, 14, $noreg220 tCMPi8 renamable $r2, 10, 14, $noreg, implicit-def $cpsr221 tBcc %bb.11, 8, killed $cpsr222 223 bb.14.entry:224 successors: %bb.19(0x1999999a), %bb.26(0x00000000), %bb.21(0x1999999a), %bb.20(0x1999999a), %bb.25(0x1999999a), %bb.15(0x1999999a)225 liveins: $r2226 227 renamable $r0, dead $cpsr = tLSLri killed renamable $r2, 2, 14, $noreg228 renamable $r1 = tLEApcrelJT %jump-table.1, 14, $noreg229 renamable $r0 = tLDRr killed renamable $r1, killed renamable $r0, 14, $noreg :: (load (s32) from jump-table)230 tBR_JTr killed renamable $r0, %jump-table.1231 232 bb.19.sw.bb93:233 renamable $r1, dead $cpsr = tMOVi8 10, 14, $noreg234 tB %bb.28, 14, $noreg235 236 bb.15.while.cond:237 renamable $r0, dead $cpsr = tMOVi8 0, 14, $noreg238 tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0239 tB %bb.15, 14, $noreg240 241 bb.29.entry:242 successors: %bb.28(0x1999999a), %bb.26(0x00000000), %bb.24(0x1999999a), %bb.23(0x1999999a), %bb.12(0x1999999a), %bb.22(0x1999999a)243 liveins: $r0, $r2244 245 renamable $r1, dead $cpsr = tLSLri killed renamable $r2, 2, 14, $noreg246 renamable $r2 = tLEApcrelJT %jump-table.0, 14, $noreg247 renamable $r2 = tLDRr killed renamable $r2, killed renamable $r1, 14, $noreg :: (load (s32) from jump-table)248 $r1 = tMOVSr $r0, implicit-def dead $cpsr249 tBR_JTr killed renamable $r2, %jump-table.0250 251 bb.24.sw.bb98:252 renamable $r1, dead $cpsr = tMOVi8 7, 14, $noreg253 tB %bb.28, 14, $noreg254 255 bb.2.entry:256 successors: %bb.27(0x2aaaaaab), %bb.3(0x55555555)257 liveins: $r0, $r1, $r4258 259 tCMPi8 renamable $r1, 10, 14, $noreg, implicit-def $cpsr260 tBcc %bb.27, 0, killed $cpsr261 262 bb.3.entry:263 successors: %bb.4, %bb.5264 liveins: $r0, $r1265 266 tCMPi8 renamable $r1, 34, 14, $noreg, implicit-def $cpsr267 tBcc %bb.5, 1, killed $cpsr268 269 bb.4:270 liveins: $r0271 272 $r1 = tMOVSr killed $r0, implicit-def dead $cpsr273 tB %bb.28, 14, $noreg274 275 bb.25.sw.bb106:276 renamable $r1, dead $cpsr = tMOVi8 11, 14, $noreg277 tB %bb.28, 14, $noreg278 279 bb.23.sw.bb97:280 renamable $r1, dead $cpsr = tMOVi8 8, 14, $noreg281 tB %bb.28, 14, $noreg282 283 bb.27.sw.bb91:284 liveins: $r4285 286 renamable $r0, dead $cpsr = tMOVi8 1, 14, $noreg287 tSTRi killed renamable $r0, killed renamable $r4, 0, 14, $noreg :: (store (s32) into %ir.ignore_ptr)288 renamable $r1, dead $cpsr = tMOVi8 0, 14, $noreg289 tB %bb.28, 14, $noreg290 291 bb.21.sw.bb95:292 renamable $r1, dead $cpsr = tMOVi8 13, 14, $noreg293 tB %bb.28, 14, $noreg294 295 bb.20.sw.bb94:296 renamable $r1, dead $cpsr = tMOVi8 9, 14, $noreg297 tB %bb.28, 14, $noreg298 299 bb.5.entry:300 liveins: $r0, $r1301 302 tCMPi8 killed renamable $r1, 39, 14, $noreg, implicit-def $cpsr303 tB %bb.6, 14, $noreg304 305 bb.11.entry:306 successors: %bb.12(0x80000000), %bb.26(0x00000000)307 liveins: $r0, $r1308 309 tCMPi8 killed renamable $r1, 69, 14, $noreg, implicit-def $cpsr310 tBcc %bb.26, 1, killed $cpsr311 312 bb.12.sw.bb107:313 successors: %bb.28(0x7fffffff), %bb.13(0x00000001)314 liveins: $r0315 316 renamable $r1, dead $cpsr = tMOVi8 27, 14, $noreg317 renamable $r2, dead $cpsr = tMOVi8 0, 14, $noreg318 tCMPi8 killed renamable $r2, 0, 14, $noreg, implicit-def $cpsr319 tBcc %bb.28, 1, killed $cpsr320 321 bb.13.if.then109:322 successors:323 liveins: $r0324 325 $r1 = tMOVSr killed $r0, implicit-def dead $cpsr326 tBL 14, $noreg, @foo1, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit undef $r0, implicit $r1, implicit-def $sp, implicit-def dead $r0327 328 bb.8.entry:329 liveins: $r0, $r1330 331 tCMPi8 killed renamable $r1, 63, 14, $noreg, implicit-def $cpsr332 333 bb.6.entry:334 successors: %bb.28(0x80000000), %bb.26(0x00000000)335 liveins: $cpsr, $r0336 337 tPUSH 14, $noreg, killed $r0, implicit-def $sp, implicit $sp338 tPOP 14, $noreg, def $r1, implicit-def $sp, implicit $sp339 tBcc %bb.28, 0, killed $cpsr340 341 bb.26.sw.epilog:342 successors:343 344 345 bb.22.sw.bb96:346 renamable $r1, dead $cpsr = tMOVi8 12, 14, $noreg347 348 bb.28.cleanup:349 liveins: $r1350 351 $r0 = tMOVSr killed $r1, implicit-def dead $cpsr352 tPOP_RET 14, $noreg, def $r4, def $pc, implicit-def $sp, implicit $sp, implicit $r0353 354 bb.18.while.end88:355 liveins: $r0356 357 tBL 14, $noreg, @foo2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0358 359...360