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37ac8d3622
This commit moves `MDLocation`, finishing off PR21433. There's an
accompanying clang commit for frontend testcases. I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.
This changes the schema for `DebugLoc` and `DILocation` from:
!{i32 3, i32 7, !7, !8}
to:
!MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)
Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226048 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
3.5 KiB
LLVM
76 lines
3.5 KiB
LLVM
; RUN: llc -split-dwarf=Enable -O0 %s -function-sections -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=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=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=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 {
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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 !{!"0x102"}), !dbg !14
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%0 = load 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 {
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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 !{!"0x102"}), !dbg !16
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%0 = load 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 = !{!"0x11\0012\00clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)\000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/z.c] [DW_LANG_C99]
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!1 = !{!"z.c", !"/usr/local/google/home/echristo"}
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!2 = !{}
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!3 = !{!4, !9}
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!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, i32 (i32)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{!8, !8}
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!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = !{!"0x2e\00bar\00bar\00\002\000\001\000\006\00256\000\002", !1, !5, !6, null, i32 (i32)* @bar, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [bar]
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!10 = !{i32 2, !"Dwarf Version", i32 4}
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!11 = !{i32 1, !"Debug Info Version", i32 2}
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!12 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
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!13 = !{!"0x101\00a\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [a] [line 1]
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!14 = !MDLocation(line: 1, scope: !4)
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!15 = !{!"0x101\00b\0016777218\000", !9, !5, !8} ; [ DW_TAG_arg_variable ] [b] [line 2]
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!16 = !MDLocation(line: 2, scope: !9)
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