| ; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t |
| ; RUN: llvm-dwarfdump -v %t | FileCheck %s |
| ; RUN: llvm-objdump -h %t | FileCheck --check-prefix=HDR %s |
| |
| ; RUN: llc -dwarf-version=5 -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t |
| ; RUN: llvm-dwarfdump -v %t | FileCheck --check-prefix=V5RNGLISTS %s |
| |
| ; RUN: llc -O0 %s -mtriple=x86_64-unknown-linux-gnu -stop-after=livedebugvalues -o - | FileCheck --check-prefix=CHECK-MIR %s |
| |
| ; LiveDebugValues should produce DBG_VALUEs for variable "b" in successive |
| ; blocks once we recognize that it is spilled. |
| ; CHECK-MIR: ![[BDIVAR:[0-9]+]] = !DILocalVariable(name: "b" |
| ; CHECK-MIR: DBG_VALUE $rsp, 0, ![[BDIVAR]], !DIExpression(DW_OP_constu, 24, DW_OP_minus) |
| ; CHECK-MIR-LABEL: bb.6.for.inc13: |
| ; CHECK-MIR: DBG_VALUE $rsp, 0, ![[BDIVAR]], !DIExpression(DW_OP_constu, 24, DW_OP_minus) |
| ; CHECK-MIR-LABEL: bb.7.for.inc16: |
| ; CHECK-MIR: DBG_VALUE $rsp, 0, ![[BDIVAR]], !DIExpression(DW_OP_constu, 24, DW_OP_minus) |
| |
| |
| ; CHECK: .debug_info contents: |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK-NEXT: DW_AT_stmt_list |
| ; CHECK-NEXT: DW_AT_comp_dir |
| ; CHECK-NEXT: DW_AT_GNU_dwo_name |
| ; CHECK-NEXT: DW_AT_GNU_dwo_id |
| ; CHECK-NEXT: DW_AT_GNU_ranges_base |
| ; CHECK-NEXT: DW_AT_low_pc |
| ; CHECK-NEXT: DW_AT_high_pc |
| ; CHECK-NEXT: DW_AT_GNU_addr_base [DW_FORM_sec_offset] (0x00000000) |
| |
| ; CHECK: .debug_info.dwo contents: |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata] (1) |
| ; CHECK-NEXT: DW_AT_name {{.*}} "p") |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[A:0x[0-9a-z]*]]: |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[E:0x[0-9a-z]*]]: |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[B:0x[0-9a-z]*]]: |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[D:0x[0-9a-z]*]]: |
| ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000 |
| ; CHECK-NOT: .debug_loc contents: |
| ; CHECK-NOT: Beginning address offset |
| ; CHECK: .debug_loc.dwo contents: |
| |
| ; Don't assume these locations are entirely correct - feel free to update them |
| ; if they've changed due to a bugfix, change in register allocation, etc. |
| |
| ; CHECK: [[A]]: |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000001, 0x00000011): DW_OP_consts +0, DW_OP_stack_value |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000002, 0x0000000b): DW_OP_reg0 RAX |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000003, 0x00000012): DW_OP_breg7 RSP-4 |
| ; CHECK-NEXT: DW_LLE_end_of_list () |
| ; CHECK: [[E]]: |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000004, 0x0000000b): DW_OP_reg0 RAX |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000005, 0x0000005a): DW_OP_breg7 RSP-36 |
| ; CHECK-NEXT: DW_LLE_end_of_list () |
| ; CHECK: [[B]]: |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000006, 0x0000000b): DW_OP_reg0 RAX |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000007, 0x00000042): DW_OP_breg7 RSP-24 |
| ; CHECK-NEXT: DW_LLE_end_of_list () |
| ; CHECK: [[D]]: |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000008, 0x0000000b): DW_OP_reg0 RAX |
| ; CHECK-NEXT: DW_LLE_startx_length (0x00000009, 0x0000002a): DW_OP_breg7 RSP-12 |
| ; CHECK-NEXT: DW_LLE_end_of_list () |
| |
| ; Make sure we don't produce any relocations in any .dwo section (though in particular, debug_info.dwo) |
| ; HDR-NOT: .rela.{{.*}}.dwo |
| |
| ; Make sure we have enough stuff in the debug_addr to cover the address indexes |
| ; (9 is the last index in debug_loc.dwo, making 10 entries of 8 bytes each, |
| ; 10 * 8 == 80 base 10 == 50 base 16) |
| |
| ; HDR: .debug_addr 00000050 |
| ; HDR-NOT: .rela.{{.*}}.dwo |
| |
| ; Check for the existence of a DWARF v5-style range list table in the .debug_rnglists |
| ; section and that the compile unit has a DW_AT_rnglists_base attribute. |
| ; The table should contain at least one rangelist with at least 2 individual ranges. |
| |
| ; V5RNGLISTS: .debug_info contents: |
| ; V5RNGLISTS: DW_TAG_compile_unit |
| ; V5RNGLISTS-NOT: DW_TAG |
| ; V5RNGLISTS: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) |
| ; V5RNGLISTS: .debug_rnglists contents: |
| ; V5RNGLISTS-NEXT: 0x00000000: range list header: length = 0x00000015, format = DWARF32, version = 0x0005, |
| ; V5RNGLISTS-SAME: addr_size = 0x08, seg_size = 0x00, offset_entry_count = 0x00000001 |
| ; V5RNGLISTS-NEXT: offsets: [ |
| ; V5RNGLISTS-NEXT: => 0x00000010 |
| ; V5RNGLISTS-NEXT: ] |
| ; V5RNGLISTS-NEXT: ranges: |
| ; V5RNGLISTS-NEXT: 0x00000010: [DW_RLE_offset_pair]: |
| ; V5RNGLISTS-NEXT: 0x00000013: [DW_RLE_offset_pair]: |
| ; V5RNGLISTS: 0x{{[0-9a-f]+}}: [DW_RLE_end_of_list] |
| |
| ; From the code: |
| |
| ; extern int c; |
| ; static void foo (int p) |
| ; { |
| ; int a, b; |
| ; unsigned int d, e; |
| |
| ; for (a = 0; a < 30; a++) |
| ; for (d = 0; d < 30; d++) |
| ; for (b = 0; b < 30; b++) |
| ; for (e = 0; e < 30; e++) |
| ; { |
| ; int *w = &c; |
| ; *w &= p; |
| ; } |
| ; } |
| |
| ; void |
| ; bar () |
| ; { |
| ; foo (1); |
| ; } |
| |
| ; compiled with: |
| |
| ; clang -g -S -gsplit-dwarf -O1 small.c |
| |
| @c = external dso_local global i32 |
| |
| ; Function Attrs: nounwind uwtable |
| define void @bar() #0 !dbg !4 { |
| entry: |
| tail call fastcc void @foo(), !dbg !27 |
| ret void, !dbg !28 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define internal fastcc void @foo() #0 !dbg !8 { |
| entry: |
| tail call void @llvm.dbg.value(metadata i32 1, metadata !13, metadata !DIExpression()), !dbg !30 |
| tail call void @llvm.dbg.value(metadata i32 0, metadata !14, metadata !DIExpression()), !dbg !31 |
| %c.promoted9 = load i32, ptr @c, align 4, !dbg !32, !tbaa !33 |
| br label %for.cond1.preheader, !dbg !31 |
| |
| for.cond1.preheader: ; preds = %for.inc16, %entry |
| %and.lcssa.lcssa.lcssa10 = phi i32 [ %c.promoted9, %entry ], [ %and, %for.inc16 ] |
| %a.08 = phi i32 [ 0, %entry ], [ %inc17, %for.inc16 ] |
| br label %for.cond4.preheader, !dbg !37 |
| |
| for.cond4.preheader: ; preds = %for.inc13, %for.cond1.preheader |
| %and.lcssa.lcssa7 = phi i32 [ %and.lcssa.lcssa.lcssa10, %for.cond1.preheader ], [ %and, %for.inc13 ] |
| %d.06 = phi i32 [ 0, %for.cond1.preheader ], [ %inc14, %for.inc13 ] |
| br label %for.cond7.preheader, !dbg !38 |
| |
| for.cond7.preheader: ; preds = %for.inc10, %for.cond4.preheader |
| %and.lcssa5 = phi i32 [ %and.lcssa.lcssa7, %for.cond4.preheader ], [ %and, %for.inc10 ] |
| %b.03 = phi i32 [ 0, %for.cond4.preheader ], [ %inc11, %for.inc10 ] |
| br label %for.body9, !dbg !39 |
| |
| for.body9: ; preds = %for.body9, %for.cond7.preheader |
| %and2 = phi i32 [ %and.lcssa5, %for.cond7.preheader ], [ %and, %for.body9 ], !dbg !40 |
| %e.01 = phi i32 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ] |
| tail call void @llvm.dbg.value(metadata ptr @c, metadata !19, metadata !DIExpression()), !dbg !40 |
| %and = and i32 %and2, 1, !dbg !32 |
| %inc = add i32 %e.01, 1, !dbg !39 |
| tail call void @llvm.dbg.value(metadata i32 %inc, metadata !18, metadata !DIExpression()), !dbg !42 |
| %exitcond = icmp eq i32 %inc, 30, !dbg !39 |
| br i1 %exitcond, label %for.inc10, label %for.body9, !dbg !39 |
| |
| for.inc10: ; preds = %for.body9 |
| %inc11 = add nsw i32 %b.03, 1, !dbg !38 |
| tail call void @llvm.dbg.value(metadata i32 %inc11, metadata !15, metadata !DIExpression()), !dbg !42 |
| %exitcond11 = icmp eq i32 %inc11, 30, !dbg !38 |
| br i1 %exitcond11, label %for.inc13, label %for.cond7.preheader, !dbg !38 |
| |
| for.inc13: ; preds = %for.inc10 |
| %inc14 = add i32 %d.06, 1, !dbg !37 |
| tail call void @llvm.dbg.value(metadata i32 %inc14, metadata !16, metadata !DIExpression()), !dbg !42 |
| %exitcond12 = icmp eq i32 %inc14, 30, !dbg !37 |
| br i1 %exitcond12, label %for.inc16, label %for.cond4.preheader, !dbg !37 |
| |
| for.inc16: ; preds = %for.inc13 |
| %inc17 = add nsw i32 %a.08, 1, !dbg !31 |
| tail call void @llvm.dbg.value(metadata i32 %inc17, metadata !14, metadata !DIExpression()), !dbg !31 |
| %exitcond13 = icmp eq i32 %inc17, 30, !dbg !31 |
| br i1 %exitcond13, label %for.end18, label %for.cond1.preheader, !dbg !31 |
| |
| for.end18: ; preds = %for.inc16 |
| store i32 %and, ptr @c, align 4, !dbg !32, !tbaa !33 |
| ret void, !dbg !42 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="none" "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 = !{!26, !43} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 191700) (llvm/trunk 191710)", isOptimized: true, splitDebugFilename: "small.dwo", emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "small.c", directory: "/usr/local/google/home/echristo/tmp") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "bar", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 19, file: !1, scope: !5, type: !6, retainedNodes: !2) |
| !5 = !DIFile(filename: "small.c", directory: "/usr/local/google/home/echristo/tmp") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null} |
| !8 = distinct !DISubprogram(name: "foo", line: 2, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !9, retainedNodes: !12) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11} |
| !11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !12 = !{!13, !14, !15, !16, !18, !19} |
| !13 = !DILocalVariable(name: "p", line: 2, arg: 1, scope: !8, file: !5, type: !11) |
| !14 = !DILocalVariable(name: "a", line: 4, scope: !8, file: !5, type: !11) |
| !15 = !DILocalVariable(name: "b", line: 4, scope: !8, file: !5, type: !11) |
| !16 = !DILocalVariable(name: "d", line: 5, scope: !8, file: !5, type: !17) |
| !17 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) |
| !18 = !DILocalVariable(name: "e", line: 5, scope: !8, file: !5, type: !17) |
| !19 = !DILocalVariable(name: "w", line: 12, scope: !20, file: !5, type: !25) |
| !20 = distinct !DILexicalBlock(line: 11, column: 0, file: !1, scope: !21) |
| !21 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !22) |
| !22 = distinct !DILexicalBlock(line: 9, column: 0, file: !1, scope: !23) |
| !23 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !24) |
| !24 = distinct !DILexicalBlock(line: 7, column: 0, file: !1, scope: !8) |
| !25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11) |
| !26 = !{i32 2, !"Dwarf Version", i32 4} |
| !27 = !DILocation(line: 20, scope: !4) |
| !28 = !DILocation(line: 21, scope: !4) |
| !29 = !{i32 1} |
| !30 = !DILocation(line: 2, scope: !8) |
| !31 = !DILocation(line: 7, scope: !24) |
| !32 = !DILocation(line: 13, scope: !20) |
| !33 = !{!34, !34, i64 0} |
| !34 = !{!"int", !35, i64 0} |
| !35 = !{!"omnipotent char", !36, i64 0} |
| !36 = !{!"Simple C/C++ TBAA"} |
| !37 = !DILocation(line: 8, scope: !23) |
| !38 = !DILocation(line: 9, scope: !22) |
| !39 = !DILocation(line: 10, scope: !21) |
| !40 = !DILocation(line: 12, scope: !20) |
| !41 = !{ptr @c} |
| !42 = !DILocation(line: 15, scope: !8) |
| !43 = !{i32 1, !"Debug Info Version", i32 3} |
| !44 = !{i32 0} |