llvm/test/DebugInfo/X86/dwarfdump-over.ll

   1 ; RUN: llc %s -filetype=obj -o %t.o
   2 ; RUN: llvm-dwarfdump  %t.o | FileCheck %s
   3
   4 ; Test whether DW_OP_over is processed properly.
   5 ; CHECK-LABEL:  DW_TAG_array_type
   6 ; CHECK-LABEL:  DW_TAG_array_type
   7 ; CHECK-NOT: DW_TAG
   8 ; CHECK:     DW_AT_data_location
   9 ; CHECK:     DW_AT_allocated
  10 ; CHECK: DW_TAG_subrange_type
  11 ; CHECK:  DW_AT_lower_bound     (DW_OP_push_object_address, DW_OP_over, DW_OP_constu 0x30, DW_OP_mul, DW_OP_plus_uconst 0x50, DW_OP_plus, DW_OP_deref)
  12 ; CHECK:  DW_AT_upper_bound     (DW_OP_push_object_address, DW_OP_over, DW_OP_constu 0x30, DW_OP_mul, DW_OP_plus_uconst 0x78, DW_OP_plus, DW_OP_deref)
  13 ; CHECK:  DW_AT_byte_stride     (DW_OP_push_object_address, DW_OP_over, DW_OP_constu 0x30, DW_OP_mul, DW_OP_plus_uconst 0x70, DW_OP_plus, DW_OP_deref, DW_OP_lit4, DW_OP_mul)
  14 ; CHECK: DW_TAG_subrange_type
  15 ; CHECK   DW_AT_lower_bound     (DW_OP_push_object_address, DW_OP_plus_uconst 0x80, DW_OP_deref)
  16 ; CHECK   DW_AT_upper_bound     (DW_OP_push_object_address, DW_OP_plus_uconst 0xa8, DW_OP_deref)
  17 ; CHECK   DW_AT_byte_stride     (DW_OP_push_object_address, DW_OP_plus_uconst 0xa0, DW_OP_deref, DW_OP_lit4, DW_OP_mul)
  18 ; CHECK: DW_TAG_subrange_type
  19 ; CHECK   DW_AT_lower_bound     (DW_OP_push_object_address, DW_OP_plus_uconst 0xb0, DW_OP_deref)
  20 ; CHECK   DW_AT_upper_bound     (DW_OP_push_object_address, DW_OP_plus_uconst 0xd8, DW_OP_deref)
  21 ; CHECK   DW_AT_byte_stride     (DW_OP_push_object_address, DW_OP_plus_uconst 0xd0, DW_OP_deref, DW_OP_lit4, DW_OP_mul)
  22
  23 ; Test case is hand written with the help of below Fortran source program.
  24 ; Generated IR is meaning less and goal of it is just to check the
  25 ; processing of DWARF operator DW_OP_over.
  26 ;------------------------------
  27 ;program main
  28 ;integer, allocatable :: arr(:,:,:)
  29 ;allocate(arr(2:20,3:30,4:40))
  30 ;arr(2,3,4)=99
  31 ;print *, arr
  32 ;end program main
  33 ;------------------------------
  34
  35 ; ModuleID = 'over.ll'
  36 source_filename = "allocated.ll"
  37 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  38 target triple = "x86_64-unknown-linux-gnu"
  39
  40 define void @MAIN_() !dbg !5 {
  41 L.entry:
  42   %.Z0655_362 = alloca i32*, align 8
  43   %"arr$sd1_379" = alloca [28 x i64], align 8
  44   call void @llvm.dbg.declare(metadata i32** %.Z0655_362, metadata !8, metadata !DIExpression()), !dbg !11
  45   call void @llvm.dbg.declare(metadata i32** %.Z0655_362, metadata !12, metadata !DIExpression()), !dbg !11
  46   call void @llvm.dbg.declare(metadata [28 x i64]* %"arr$sd1_379", metadata !14, metadata !DIExpression()), !dbg !11
  47   call void @llvm.dbg.declare(metadata [28 x i64]* %"arr$sd1_379", metadata !19, metadata !DIExpression()), !dbg !11
  48   ret void, !dbg !25
  49 }
  50
  51 ; Function Attrs: nounwind readnone speculatable willreturn
  52 declare void @llvm.dbg.declare(metadata, metadata, metadata)
  53
  54 !llvm.module.flags = !{!0, !1}
  55 !llvm.dbg.cu = !{!2}
  56
  57 !0 = !{i32 2, !"Dwarf Version", i32 4}
  58 !1 = !{i32 2, !"Debug Info Version", i32 3}
  59 !2 = distinct !DICompileUnit(language: DW_LANG_Fortran90, file: !3, producer: " F90 Flang 1.5 2017-05-01", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !4, imports: !4)
  60 !3 = !DIFile(filename: "over.f90", directory: "/dir")
  61 !4 = !{}
  62 !5 = distinct !DISubprogram(name: "main", scope: !2, file: !3, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagMainSubprogram, unit: !2)
  63 !6 = !DISubroutineType(cc: DW_CC_program, types: !7)
  64 !7 = !{null}
  65 !8 = distinct !DILocalVariable(scope: !5, file: !3, type: !9, flags: DIFlagArtificial)
  66 !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, align: 64)
  67 !10 = !DIBasicType(name: "integer", size: 32, align: 32, encoding: DW_ATE_signed)
  68 !11 = !DILocation(line: 0, scope: !5)
  69 !12 = distinct !DILocalVariable(scope: !5, file: !3, type: !13, flags: DIFlagArtificial)
  70 !13 = !DIBasicType(name: "logical", size: 32, align: 32, encoding: DW_ATE_boolean)
  71 !14 = distinct !DILocalVariable(name: "descriptor", scope: !5, file: !3, type: !15)
  72 !15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !16, size: 1792, align: 64, elements: !17)
  73 !16 = !DIBasicType(name: "integer*8", size: 64, align: 64, encoding: DW_ATE_signed)
  74 !17 = !{!18}
  75 !18 = !DISubrange(lowerBound: 1, upperBound: 28)
  76 !19 = !DILocalVariable(name: "arr", scope: !5, file: !3, type: !20)
  77 !20 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 32, align: 32, elements: !21, dataLocation: !8, allocated: !12)
  78 !21 = !{!22, !23, !24}
  79 !22 = !DISubrange(lowerBound: !DIExpression(DW_OP_push_object_address, DW_OP_over, DW_OP_constu, 48, DW_OP_mul, DW_OP_plus_uconst, 80, DW_OP_plus, DW_OP_deref), upperBound: !DIExpression(DW_OP_push_object_address, DW_OP_over, DW_OP_constu, 48, DW_OP_mul, DW_OP_plus_uconst, 120, DW_OP_plus, DW_OP_deref), stride: !DIExpression(DW_OP_push_object_address, DW_OP_over, DW_OP_constu, 48, DW_OP_mul, DW_OP_plus_uconst, 112, DW_OP_plus, DW_OP_deref, DW_OP_constu, 4, DW_OP_mul))
  80 !23 = !DISubrange(lowerBound: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 128, DW_OP_deref), upperBound: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 168, DW_OP_deref), stride: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 160, DW_OP_deref, DW_OP_constu, 4, DW_OP_mul))
  81 !24 = !DISubrange(lowerBound: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 176, DW_OP_deref), upperBound: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 216, DW_OP_deref), stride: !DIExpression(DW_OP_push_object_address, DW_OP_plus_uconst, 208, DW_OP_deref, DW_OP_constu, 4, DW_OP_mul))
  82 !25 = !DILocation(line: 6, column: 1, scope: !5)