134 lines
7.4 KiB
LLVM
134 lines
7.4 KiB
LLVM
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; RUN: llc -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o - -minimize-addr-in-v5=Ranges \
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; RUN: | llvm-dwarfdump -debug-info -debug-addr -debug-rnglists -v - \
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; RUN: | FileCheck --implicit-check-not=DW_TAG --implicit-check-not=NULL --implicit-check-not=DW_AT_low_pc --implicit-check-not=DW_AT_high_pc --implicit-check-not=DW_AT_ranges %s
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; Generated from the following source. f4 is used to put a hole in the CU
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; ranges while keeping f2 and f4 in the same section (as opposed to
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; -ffunction-sections, which would produce CU ranges, but each function would
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; be in a different section, so unable to share addresses). The call to f1 at
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; the start of f3 ensures the range for the inlined subroutine doesn't share
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; the starting address with f3 (so it can be improved by using a rnglist to
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; allow it to share an address it wouldn't already be sharing).
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; Without f6 being in another section, technically we could use a non-zero CU
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; low_pc that could act as a base address for all the addresses in the CU & avoid
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; the need for these forced rnglists - we don't do that currently, but f6 ensures
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; that this test will remain meaningful even if that improvement is made in the
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; future. (implementing that would require detecting that all the addresses in
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; the CU ranges are in the same section, then picking the lowest such address as
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; the base address to make all other addresses relative to)
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; void f1();
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; __attribute__((always_inline)) inline void f2() {
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; f1();
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; }
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; void f3() {
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; f1();
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; f2();
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; }
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; __attribute__((nodebug)) void f4() {
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; }
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; void f5() {
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; }
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; __attribute__((section(".other"))) void f6() {
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; }
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; CHECK-LABEL: .debug_info contents:
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; CHECK: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x2) rangelist = [[CU_RANGE:.*]]
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_AT_name {{.*}} "f2"
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_AT_low_pc [DW_FORM_addrx] (indexed (00000000) address = 0x0000000000000000 ".text")
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; CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000010)
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x0) rangelist = [[INL_RANGE:.*]]
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; CHECK: NULL
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x1) rangelist = [[F5_RANGE:.*]]
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_AT_low_pc [DW_FORM_addrx] (indexed (00000001) address = 0x0000000000000000 ".other")
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; CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000006)
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; CHECK: NULL
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; CHECK-LABEL: .debug_addr contents:
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; CHECK: 0x00000000: Address table
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; CHECK-NEXT: Addrs: [
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; CHECK-NEXT: 0x0000000000000000
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; CHECK-NEXT: 0x0000000000000000
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; CHECK-NEXT: ]
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; CHECK-LABEL: .debug_rnglists contents:
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; CHECK: 0x00000000: range list header: {{.*}}, offset_entry_count = 0x00000003
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; CHECK: ranges:
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; CHECK-NEXT: [[INL_RANGE]]: [DW_RLE_base_addressx]: 0x0000000000000000
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; CHECK-NEXT: [DW_RLE_offset_pair ]
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; CHECK-NEXT: [DW_RLE_end_of_list ]
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; CHECK-NEXT: [[F5_RANGE]]: [DW_RLE_base_addressx]: 0x0000000000000000
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; CHECK-NEXT: [DW_RLE_offset_pair ]
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; CHECK-NEXT: [DW_RLE_end_of_list ]
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; CHECK-NEXT: [[CU_RANGE]]: [DW_RLE_base_addressx]: 0x0000000000000000
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; CHECK-NEXT: [DW_RLE_offset_pair ]
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; CHECK-NEXT: [DW_RLE_offset_pair ]
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; CHECK-NEXT: [DW_RLE_startx_length]: 0x0000000000000001
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; CHECK-NEXT: [DW_RLE_end_of_list ]
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; Function Attrs: noinline optnone uwtable mustprogress
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define dso_local void @_Z2f3v() #0 !dbg !7 {
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entry:
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call void @_Z2f1v(), !dbg !10
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call void @_Z2f1v(), !dbg !11
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ret void, !dbg !14
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}
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declare dso_local void @_Z2f1v() #1
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; Function Attrs: noinline nounwind optnone uwtable mustprogress
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define dso_local void @_Z2f4v() #2 {
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entry:
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ret void
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}
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; Function Attrs: noinline nounwind optnone uwtable mustprogress
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define dso_local void @_Z2f5v() #2 !dbg !15 {
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entry:
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ret void, !dbg !16
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}
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; Function Attrs: noinline nounwind optnone uwtable mustprogress
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define dso_local void @_Z2f6v() #2 section ".other" !dbg !17 {
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entry:
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ret void, !dbg !18
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}
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attributes #0 = { noinline optnone uwtable mustprogress "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { noinline nounwind optnone uwtable mustprogress "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 12.0.0 (git@github.com:llvm/llvm-project.git 79afdd7d36b814942ec7f2f577d0443f6aecc939)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "ranges_always.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch", checksumkind: CSK_MD5, checksum: "25fb47763043609a0aac0ab69baa803d")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 5}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 12.0.0 (git@github.com:llvm/llvm-project.git 79afdd7d36b814942ec7f2f577d0443f6aecc939)"}
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!7 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !DILocation(line: 6, column: 3, scope: !7)
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!11 = !DILocation(line: 3, column: 3, scope: !12, inlinedAt: !13)
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!12 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!13 = distinct !DILocation(line: 7, column: 3, scope: !7)
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!14 = !DILocation(line: 8, column: 1, scope: !7)
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!15 = distinct !DISubprogram(name: "f5", linkageName: "_Z2f5v", scope: !1, file: !1, line: 11, type: !8, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!16 = !DILocation(line: 12, column: 1, scope: !15)
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!17 = distinct !DISubprogram(name: "f6", linkageName: "_Z2f6v", scope: !1, file: !1, line: 13, type: !8, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!18 = !DILocation(line: 14, column: 1, scope: !17)
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