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llvm-project/llvm/test/MC/WebAssembly/dwarfdump.ll
David Blaikie 40f1593558 DebugInfo: Correct/improve type formatting (pointers to function types especially) 
This does add some extra superfluous whitespace (eg: "int *") intended
to make the Simplified Template Names work easier - this makes the
DIE-based names match more exactly the clang-generated names, so it's
easier to identify cases that don't generate matching names.

(arguably we could change clang to skip that whitespace or add some
fuzzy matching to accommodate differences in certain whitespace - but
this seemed easier and fairly low-impact)
2021-09-03 12:22:28 -07:00

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; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
; RUN: llc -filetype=obj --split-dwarf-file=%t.dwo --split-dwarf-output=%t.dwo %s -o %t.o
; RUN: llvm-dwarfdump %t.dwo | FileCheck %s -check-prefix=SPLIT
; CHECK: .debug_info contents:
; CHECK-NEXT: 0x00000000: Compile Unit: length = 0x0000006e, format = DWARF32, version = 0x0004, abbr_offset = 0x0000, addr_size = 0x04 (next unit at 0x00000072)
; CHECK: 0x0000000b: DW_TAG_compile_unit
; CHECK-NEXT: DW_AT_producer ("clang version 6.0.0 (trunk 315924) (llvm/trunk 315960)")
; CHECK-NEXT: DW_AT_language (DW_LANG_C99)
; CHECK-NEXT: DW_AT_name ("test.c")
; CHECK-NEXT: DW_AT_stmt_list (0x00000000)
; CHECK-NEXT: DW_AT_comp_dir ("/usr/local/google/home/sbc/dev/wasm/simple")
; CHECK-NEXT: DW_AT_GNU_pubnames (true)
; CHECK-NEXT: DW_AT_low_pc (0x00000002)
; CHECK-NEXT: DW_AT_high_pc (0x00000004)
; CHECK: 0x00000026: DW_TAG_variable
; CHECK-NEXT: DW_AT_name ("foo")
; CHECK-NEXT: DW_AT_type (0x00000037 "int *")
; CHECK-NEXT: DW_AT_external (true)
; CHECK-NEXT: DW_AT_decl_file ("/usr/local/google/home/sbc/dev/wasm/simple{{[/\\]}}test.c")
; CHECK-NEXT: DW_AT_decl_line (4)
; CHECK-NEXT: DW_AT_location (DW_OP_addr 0x0)
; CHECK: 0x00000037: DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type (0x0000003c "int")
; CHECK: 0x0000003c: DW_TAG_base_type
; CHECK-NEXT: DW_AT_name ("int")
; CHECK-NEXT: DW_AT_encoding (DW_ATE_signed)
; CHECK-NEXT: DW_AT_byte_size (0x04)
; CHECK: 0x00000043: DW_TAG_variable
; CHECK-NEXT: DW_AT_name ("ptr2")
; CHECK-NEXT: DW_AT_type (0x00000054 "void (*)()")
; CHECK-NEXT: DW_AT_external (true)
; CHECK-NEXT: DW_AT_decl_file ("/usr/local/google/home/sbc/dev/wasm/simple{{[/\\]}}test.c")
; CHECK-NEXT: DW_AT_decl_line (5)
; CHECK-NEXT: DW_AT_location (DW_OP_addr 0x4)
; CHECK: 0x00000054: DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type (0x00000059 "void ()")
; CHECK: 0x00000059: DW_TAG_subroutine_type
; CHECK-NEXT: DW_AT_prototyped (true)
; CHECK: 0x0000005a: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_low_pc (0x00000002)
; CHECK-NEXT: DW_AT_high_pc (0x00000004)
; CHECK-NEXT: DW_AT_frame_base (DW_OP_WASM_location 0x3 0x0, DW_OP_stack_value)
; CHECK-NEXT: DW_AT_name ("f2")
; CHECK-NEXT: DW_AT_decl_file ("/usr/local/google/home/sbc/dev/wasm/simple{{[/\\]}}test.c")
; CHECK-NEXT: DW_AT_decl_line (2)
; CHECK-NEXT: DW_AT_prototyped (true)
; CHECK-NEXT: DW_AT_external (true)
; CHECK: 0x00000071: NULL
; SPLIT: .debug_info.dwo contents:
; SPLIT-NEXT: 0x00000000: Compile Unit: length = 0x0000004c, format = DWARF32, version = 0x0004, abbr_offset = 0x0000, addr_size = 0x04 (next unit at 0x00000050)
; SPLIT: 0x0000000b: DW_TAG_compile_unit
; SPLIT-NEXT: DW_AT_producer ("clang version 6.0.0 (trunk 315924) (llvm/trunk 315960)")
; SPLIT-NEXT: DW_AT_language (DW_LANG_C99)
; SPLIT-NEXT: DW_AT_name ("test.c")
; SPLIT-NEXT: DW_AT_GNU_dwo_name ("{{.*}}dwarfdump.ll.tmp.dwo")
; SPLIT-NEXT: DW_AT_GNU_dwo_id (0xad3151f12153fa17)
; SPLIT: 0x00000019: DW_TAG_variable
; SPLIT-NEXT: DW_AT_name ("foo")
; SPLIT-NEXT: DW_AT_type (0x00000024 "int *")
; SPLIT-NEXT: DW_AT_external (true)
; SPLIT-NEXT: DW_AT_decl_file (0x01)
; SPLIT-NEXT: DW_AT_decl_line (4)
; SPLIT-NEXT: DW_AT_location (DW_OP_GNU_addr_index 0x0)
; SPLIT: 0x00000024: DW_TAG_pointer_type
; SPLIT-NEXT: DW_AT_type (0x00000029 "int")
; SPLIT: 0x00000029: DW_TAG_base_type
; SPLIT-NEXT: DW_AT_name ("int")
; SPLIT-NEXT: DW_AT_encoding (DW_ATE_signed)
; SPLIT-NEXT: DW_AT_byte_size (0x04)
; SPLIT: 0x0000002d: DW_TAG_variable
; SPLIT-NEXT: DW_AT_name ("ptr2")
; SPLIT-NEXT: DW_AT_type (0x00000038 "void (*)()")
; SPLIT-NEXT: DW_AT_external (true)
; SPLIT-NEXT: DW_AT_decl_file (0x01)
; SPLIT-NEXT: DW_AT_decl_line (5)
; SPLIT-NEXT: DW_AT_location (DW_OP_GNU_addr_index 0x1)
; SPLIT: 0x00000038: DW_TAG_pointer_type
; SPLIT-NEXT: DW_AT_type (0x0000003d "void ()")
; SPLIT: 0x0000003d: DW_TAG_subroutine_type
; SPLIT-NEXT: DW_AT_prototyped (true)
; SPLIT: 0x0000003e: DW_TAG_subprogram
; SPLIT-NEXT: DW_AT_low_pc (indexed (00000002) address = <unresolved>)
; SPLIT-NEXT: DW_AT_high_pc (0x00000002)
; SPLIT-NEXT: DW_AT_frame_base (DW_OP_WASM_location 0x3 0x0, DW_OP_stack_value)
; SPLIT-NEXT: DW_AT_name ("f2")
; SPLIT-NEXT: DW_AT_decl_file (0x01)
; SPLIT-NEXT: DW_AT_decl_line (2)
; SPLIT-NEXT: DW_AT_prototyped (true)
; SPLIT-NEXT: DW_AT_external (true)
; SPLIT: 0x0000004f: NULL
target triple = "wasm32-unknown-unknown"
source_filename = "test.c"
@myextern = external global i32, align 4
@foo = hidden global i32* @myextern, align 4, !dbg !0
@ptr2 = hidden global void ()* @f2, align 4, !dbg !6
; Function Attrs: noinline nounwind optnone
define hidden void @f2() #0 !dbg !17 {
entry:
ret void, !dbg !18
}
attributes #0 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!13, !14, !15}
!llvm.ident = !{!16}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "foo", scope: !2, file: !3, line: 4, type: !11, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 6.0.0 (trunk 315924) (llvm/trunk 315960)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
!3 = !DIFile(filename: "test.c", directory: "/usr/local/google/home/sbc/dev/wasm/simple")
!4 = !{}
!5 = !{!0, !6}
!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
!7 = distinct !DIGlobalVariable(name: "ptr2", scope: !2, file: !3, line: 5, type: !8, isLocal: false, isDefinition: true)
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 32)
!9 = !DISubroutineType(types: !10)
!10 = !{null}
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 32)
!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!13 = !{i32 2, !"Dwarf Version", i32 4}
!14 = !{i32 2, !"Debug Info Version", i32 3}
!15 = !{i32 1, !"wchar_size", i32 4}
!16 = !{!"clang version 6.0.0 (trunk 315924) (llvm/trunk 315960)"}
!17 = distinct !DISubprogram(name: "f2", scope: !3, file: !3, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
!18 = !DILocation(line: 2, column: 16, scope: !17)
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