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75 lines
3.5 KiB
LLVM
75 lines
3.5 KiB
LLVM
; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -function-sections -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-abbrev %t | FileCheck --check-prefix=FUNCTION-SECTIONS %s
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; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=FUNCTION-SECTIONS-RELOCS %s
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; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-abbrev %t | FileCheck --check-prefix=NO-FUNCTION-SECTIONS %s
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; From:
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; int foo (int a) {
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; return a+1;
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; }
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; int bar (int b) {
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; return b+2;
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; }
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; With function sections enabled make sure that we have a DW_AT_ranges attribute.
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; FUNCTION-SECTIONS: DW_AT_ranges
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; Check that we have a relocation against the .debug_ranges section.
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; FUNCTION-SECTIONS-RELOCS: R_X86_64_32 .debug_ranges 0x0
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; Without function sections enabled make sure that we have no DW_AT_ranges attribute.
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; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
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; NO-FUNCTION-SECTIONS: DW_AT_low_pc DW_FORM_addr
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; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
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; Function Attrs: nounwind uwtable
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define i32 @foo(i32 %a) #0 !dbg !4 {
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entry:
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%a.addr = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !13, metadata !DIExpression()), !dbg !14
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%0 = load i32, i32* %a.addr, align 4, !dbg !14
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%add = add nsw i32 %0, 1, !dbg !14
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ret i32 %add, !dbg !14
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: nounwind uwtable
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define i32 @bar(i32 %b) #0 !dbg !9 {
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entry:
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%b.addr = alloca i32, align 4
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store i32 %b, i32* %b.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !15, metadata !DIExpression()), !dbg !16
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%0 = load i32, i32* %b.addr, align 4, !dbg !16
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%add = add nsw i32 %0, 2, !dbg !16
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ret i32 %add, !dbg !16
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
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!5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !8}
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = distinct !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2)
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!10 = !{i32 2, !"Dwarf Version", i32 4}
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!11 = !{i32 1, !"Debug Info Version", i32 3}
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!12 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
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!13 = !DILocalVariable(name: "a", line: 1, arg: 1, scope: !4, file: !5, type: !8)
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!14 = !DILocation(line: 1, scope: !4)
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!15 = !DILocalVariable(name: "b", line: 2, arg: 1, scope: !9, file: !5, type: !8)
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!16 = !DILocation(line: 2, scope: !9)
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