; RUN: llc -split-dwarf=Enable -O0 %s -function-sections -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t ; RUN: llvm-dwarfdump -debug-dump=abbrev %t | FileCheck --check-prefix=FUNCTION-SECTIONS %s ; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=FUNCTION-SECTIONS-RELOCS %s ; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t ; RUN: llvm-dwarfdump -debug-dump=abbrev %t | FileCheck --check-prefix=NO-FUNCTION-SECTIONS %s ; From: ; int foo (int a) { ; return a+1; ; } ; int bar (int b) { ; return b+2; ; } ; With function sections enabled make sure that we have a DW_AT_ranges attribute. ; FUNCTION-SECTIONS: DW_AT_ranges ; Check that we have a relocation against the .debug_ranges section. ; FUNCTION-SECTIONS-RELOCS: R_X86_64_32 .debug_ranges 0x0 ; Without function sections enabled make sure that we have no DW_AT_ranges attribute. ; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges ; NO-FUNCTION-SECTIONS: DW_AT_low_pc DW_FORM_addr ; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges ; Function Attrs: nounwind uwtable define i32 @foo(i32 %a) #0 { entry: %a.addr = alloca i32, align 4 store i32 %a, i32* %a.addr, align 4 call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !13, metadata !{metadata !"0x102"}), !dbg !14 %0 = load i32* %a.addr, align 4, !dbg !14 %add = add nsw i32 %0, 1, !dbg !14 ret i32 %add, !dbg !14 } ; Function Attrs: nounwind readnone declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 ; Function Attrs: nounwind uwtable define i32 @bar(i32 %b) #0 { entry: %b.addr = alloca i32, align 4 store i32 %b, i32* %b.addr, align 4 call void @llvm.dbg.declare(metadata !{i32* %b.addr}, metadata !15, metadata !{metadata !"0x102"}), !dbg !16 %0 = load i32* %b.addr, align 4, !dbg !16 %add = add nsw i32 %0, 2, !dbg !16 ret i32 %add, !dbg !16 } 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" } attributes #1 = { nounwind readnone } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!10, !11} !llvm.ident = !{!12} !0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)\000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/z.c] [DW_LANG_C99] !1 = metadata !{metadata !"z.c", metadata !"/usr/local/google/home/echristo"} !2 = metadata !{} !3 = metadata !{metadata !4, metadata !9} !4 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, i32 (i32)* @foo, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo] !5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c] !6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] !7 = metadata !{metadata !8, metadata !8} !8 = metadata !{metadata !"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] !9 = metadata !{metadata !"0x2e\00bar\00bar\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, i32 (i32)* @bar, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [bar] !10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} !11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2} !12 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"} !13 = metadata !{metadata !"0x101\00a\0016777217\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ] [a] [line 1] !14 = metadata !{i32 1, i32 0, metadata !4, null} !15 = metadata !{metadata !"0x101\00b\0016777218\000", metadata !9, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ] [b] [line 2] !16 = metadata !{i32 2, i32 0, metadata !9, null}