| ; 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 !DIExpression()), !dbg !14 |
| %0 = load i32, 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 !DIExpression()), !dbg !16 |
| %0 = load i32, 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 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo") |
| !2 = !{} |
| !3 = !{!4, !9} |
| !4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2) |
| !5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{!8, !8} |
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !9 = !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: i32 (i32)* @bar, variables: !2) |
| !10 = !{i32 2, !"Dwarf Version", i32 4} |
| !11 = !{i32 1, !"Debug Info Version", i32 3} |
| !12 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"} |
| !13 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 1, arg: 1, scope: !4, file: !5, type: !8) |
| !14 = !DILocation(line: 1, scope: !4) |
| !15 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 2, arg: 1, scope: !9, file: !5, type: !8) |
| !16 = !DILocation(line: 2, scope: !9) |