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1# RUN: llc %s -start-after=arm-mve-vpt-opts -stop-after=arm-prera-ldst-opt -o - | FileCheck %s2# CHECK: %5:rgpr = t2MOVCCr %3, killed %4, 0 /* CC::eq */, $cpsr, debug-location !143# CHECK-NEXT: DBG_VALUE 0, $noreg, !10, !DIExpression(), debug-location !144# CHECK-NEXT: DBG_VALUE 1, $noreg, !10, !DIExpression(), debug-location !145# CHECK-NEXT: DBG_VALUE_LIST !10, !DIExpression(), $noreg, $noreg, debug-location !146# CHECK-NEXT: DBG_VALUE $noreg, $noreg, !10, !DIExpression(), debug-location !147# CHECK-NEXT: %0:rgpr = t2LDRi12 %5, 0, 14 /* CC::al */, $noreg, debug-location !14 :: (load (s32) from %ir..backtrace_user.ctl_default, align 8)8# CHECK-NEXT: %6:rgpr = t2LDRi12 %5, 4, 14 /* CC::al */, $noreg, debug-location !14 :: (load (s32) from %ir.btc_user_copy)9# CHECK-NEXT: %2:gpr = t2LDRi12 %5, 8, 14 /* CC::al */, $noreg, debug-location !14 :: (load (s32) from %ir.btc_user_copy_context, align 8)10# CHECK-NEXT: DBG_VALUE %2, $noreg, !10, !DIExpression(), debug-location !1411# CHECK-NEXT: %7:rgpr = t2ANDrr %6, %0, 14 /* CC::al */, $noreg, def $cpsr12# CHECK-NEXT: %8:rgpr = t2ANDrr %6, %0, 14 /* CC::al */, $noreg, def $cpsr13# CHECK-NEXT: %9:rgpr = t2ANDrr %6, %0, 14 /* CC::al */, $noreg, def $cpsr14# CHECK-NEXT: %10:rgpr = t2ANDrr %6, %0, 14 /* CC::al */, $noreg, def $cpsr15 16# This test specifically checks if a DBG_VALUE_LIST that is succeeded by a DBG_VALUE can be properly undefed and the DBG_VALUE is the one that is moved. Assuming both instructions describe the same local variable. 17 18--- |19 target triple = "thumbv7k-apple-watchos8.0.0"20 %struct.backtrace_control = type {}21 @backtrace_user.ctl_default = internal unnamed_addr constant %struct.backtrace_control zeroinitializer, !dbg !022 define i32 @backtrace_user(ptr nocapture noundef writeonly %bt, i32 noundef %max_frames, ptr noundef readonly %ctl_in, ptr nocapture noundef readnone %info_out) local_unnamed_addr #0 !dbg !2 {entry:23 %tobool.not = icmp eq ptr %ctl_in, null, !dbg !9524 %.backtrace_user.ctl_default = select i1 %tobool.not, ptr @backtrace_user.ctl_default, ptr %ctl_in, !dbg !9525 %btc_user_copy = getelementptr inbounds %struct.backtrace_control, ptr %.backtrace_user.ctl_default, !dbg !9526 %btc_user_copy_context = getelementptr inbounds %struct.backtrace_control, ptr %.backtrace_user.ctl_default, !dbg !9527 ret i32 undef, !dbg !9528 }29 !llvm.module.flags = !{!88, !93}30 !llvm.dbg.cu = !{!32}31 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())32 !1 = distinct !DIGlobalVariable(type: !11, isDefinition: true)33 !2 = distinct !DISubprogram(unit: !32, retainedNodes: !38)34 !3 = !DIFile(filename: "backtrace.pp.c", directory: "/Users/shubham/Development/Delta")35 !11 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !12)36 !12 = distinct !DICompositeType(tag: DW_TAG_member, offset: 32)37 !32 = distinct !DICompileUnit(language: DW_LANG_C11, file: !33, sdk: "MacOSX13.0.sdk")38 !33 = !DIFile(filename: "/Users/shubham/Development/Delta/backtrace.pp.c", directory: "/Users/shubham/Development/Delta")39 !38 = !{!60, !85}40 !60 = !DILocalVariable(scope: !2, type: !62)41 !62 = distinct !DICompositeType(tag: DW_TAG_union_type, size: 128)42 !85 = !DILabel(scope: !2, name: "out", file: !3, line: 102)43 !88 = !{i32 2, !"Debug Info Version", i32 3}44 !93 = !{i32 7, !"frame-pointer", i32 1}45 !95 = !DILocation(line: 5, column: 10, scope: !2)46name: backtrace_user47registers:48 - {id: 0, class: rgpr, }49 - {id: 1, class: gpr, }50 - {id: 2, class: gpr, }51body: |52 bb.0.entry:53 %10:rgpr = COPY $r254 %13:rgpr = t2MOV_ga_pcrel target-flags(arm-nonlazy) @backtrace_user.ctl_default, debug-location !9555 %15:rgpr = t2MOVCCr %10, killed %13, 0 /* CC::eq */, $cpsr, debug-location !9556 DBG_VALUE 0, $noreg, !60, !DIExpression(), debug-location !9557 %0:rgpr = t2LDRi12 %15, 0, 14 /* CC::al */, $noreg, debug-location !95 :: (load (s32) from %ir..backtrace_user.ctl_default, align 8)58 DBG_VALUE 1, $noreg, !60, !DIExpression(), debug-location !9559 %16:rgpr = t2LDRi12 %15, 4, 14 /* CC::al */, $noreg, debug-location !95 :: (load (s32) from %ir.btc_user_copy)60 DBG_VALUE_LIST !60, !DIExpression(), %16, %0, debug-location !9561 %2:gpr = t2LDRi12 %15, 8, 14 /* CC::al */, $noreg, debug-location !95 :: (load (s32) from %ir.btc_user_copy_context, align 8)62 DBG_VALUE %2, $noreg, !60, !DIExpression(), debug-location !9563 %31:rgpr = t2ANDrr %16, %0, 14 /* CC::al */, $noreg, def $cpsr64 %32:rgpr = t2ANDrr %16, %0, 14 /* CC::al */, $noreg, def $cpsr65 %33:rgpr = t2ANDrr %16, %0, 14 /* CC::al */, $noreg, def $cpsr66 %34:rgpr = t2ANDrr %16, %0, 14 /* CC::al */, $noreg, def $cpsr67