| ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=4 --basic-block-sections=none -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s |
| ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=4 --basic-block-sections=all -filetype=obj -o - | llvm-dwarfdump - | FileCheck --check-prefix=SECTIONS %s |
| ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=5 --basic-block-sections=none -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s |
| ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=5 --basic-block-sections=all -filetype=obj -o - | llvm-dwarfdump - | FileCheck --check-prefix=SECTIONS %s |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NEXT: DW_AT_low_pc |
| ; CHECK-NEXT: DW_AT_high_pc |
| ; CHECK: DW_TAG_variable |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NEXT: DW_AT_location |
| ; CHECK-NEXT: DW_OP_consts +0, DW_OP_stack_value |
| ; CHECK-NEXT: DW_OP_consts +7, DW_OP_stack_value |
| ; CHECK-NEXT: DW_OP_consts +8, DW_OP_stack_value |
| ; CHECK-NEXT: DW_AT_name ("i") |
| |
| ; SECTIONS: DW_TAG_subprogram |
| ; SECTIONS-NEXT: DW_AT_ranges |
| ; SECTIONS: DW_TAG_variable |
| ; SECTIONS: DW_TAG_variable |
| ; SECTIONS-NEXT: DW_AT_location |
| ; SECTIONS-NEXT: DW_OP_consts +0, DW_OP_stack_value |
| ; SECTIONS-NEXT: DW_OP_consts +7, DW_OP_stack_value |
| ; SECTIONS-NEXT: DW_OP_consts +7, DW_OP_stack_value |
| ; SECTIONS-NEXT: DW_OP_consts +8, DW_OP_stack_value |
| ; SECTIONS-NEXT: DW_AT_name ("i") |
| |
| ; void f1(int *); |
| ; void f2(int); |
| ; extern bool b; |
| ; int test() { |
| ; // i is not a const throughout the whole scope and |
| ; // should *not* use DW_AT_const_value. The scope |
| ; // creates basic block sections and should use |
| ; // DW_AT_ranges. |
| ; int i = 0; |
| ; int j = 10; |
| ; { |
| ; i = 7; |
| ; if (b) |
| ; f1(&j); |
| ; } |
| ; i = 8; |
| ; f2(i); |
| ; return j; |
| ; } |
| ; clang++ -S scoped_section.cc -g -O2 -emit-llvm |
| |
| |
| @b = external local_unnamed_addr global i8, align 1 |
| |
| ; Function Attrs: mustprogress uwtable |
| define dso_local noundef i32 @_Z4testv() local_unnamed_addr #0 !dbg !10 { |
| entry: |
| %j = alloca i32, align 4, !DIAssignID !17 |
| #dbg_assign(i1 undef, !16, !DIExpression(), !17, ptr %j, !DIExpression(), !18) |
| #dbg_value(i32 0, !15, !DIExpression(), !18) |
| call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %j) #3, !dbg !19 |
| store i32 10, ptr %j, align 4, !dbg !20, !tbaa !21, !DIAssignID !25 |
| #dbg_assign(i32 10, !16, !DIExpression(), !25, ptr %j, !DIExpression(), !18) |
| #dbg_value(i32 7, !15, !DIExpression(), !18) |
| %0 = load i8, ptr @b, align 1, !dbg !26, !tbaa !29, !range !31, !noundef !32 |
| %loadedv = trunc nuw i8 %0 to i1, !dbg !26 |
| br i1 %loadedv, label %if.then, label %if.end, !dbg !33 |
| |
| if.then: ; preds = %entry |
| call void @_Z2f1Pi(ptr noundef nonnull %j), !dbg !34 |
| br label %if.end, !dbg !34 |
| |
| if.end: ; preds = %if.then, %entry |
| #dbg_value(i32 8, !15, !DIExpression(), !18) |
| call void @_Z2f2i(i32 noundef 8), !dbg !35 |
| %1 = load i32, ptr %j, align 4, !dbg !36, !tbaa !21 |
| call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %j) #3, !dbg !37 |
| ret i32 %1, !dbg !38 |
| } |
| |
| ; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) |
| declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1 |
| |
| declare !dbg !39 void @_Z2f1Pi(ptr noundef) local_unnamed_addr #2 |
| |
| declare !dbg !43 void @_Z2f2i(i32 noundef) local_unnamed_addr #2 |
| |
| ; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) |
| declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1 |
| |
| attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) } |
| attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8} |
| !llvm.ident = !{!9} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 20.0.0git (git@github.com:tmsri/llvm-project.git 11a50269e82b6dce49249c5cbe3a989b06f0848f)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "scoped_section.cc", directory: "", checksumkind: CSK_MD5, checksum: "9dda8d16c16edf7724c901692e07587c") |
| !2 = !{i32 7, !"Dwarf Version", i32 5} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"wchar_size", i32 4} |
| !5 = !{i32 8, !"PIC Level", i32 2} |
| !6 = !{i32 7, !"PIE Level", i32 2} |
| !7 = !{i32 7, !"uwtable", i32 2} |
| !8 = !{i32 7, !"debug-info-assignment-tracking", i1 true} |
| !9 = !{!"clang version 20.0.0git (git@github.com:tmsri/llvm-project.git 11a50269e82b6dce49249c5cbe3a989b06f0848f)"} |
| !10 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !14) |
| !11 = !DISubroutineType(types: !12) |
| !12 = !{!13} |
| !13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !14 = !{!15, !16} |
| !15 = !DILocalVariable(name: "i", scope: !10, file: !1, line: 7, type: !13) |
| !16 = !DILocalVariable(name: "j", scope: !10, file: !1, line: 8, type: !13) |
| !17 = distinct !DIAssignID() |
| !18 = !DILocation(line: 0, scope: !10) |
| !19 = !DILocation(line: 8, column: 5, scope: !10) |
| !20 = !DILocation(line: 8, column: 9, scope: !10) |
| !21 = !{!22, !22, i64 0} |
| !22 = !{!"int", !23, i64 0} |
| !23 = !{!"omnipotent char", !24, i64 0} |
| !24 = !{!"Simple C++ TBAA"} |
| !25 = distinct !DIAssignID() |
| !26 = !DILocation(line: 11, column: 11, scope: !27) |
| !27 = distinct !DILexicalBlock(scope: !28, file: !1, line: 11, column: 11) |
| !28 = distinct !DILexicalBlock(scope: !10, file: !1, line: 9, column: 5) |
| !29 = !{!30, !30, i64 0} |
| !30 = !{!"bool", !23, i64 0} |
| !31 = !{i8 0, i8 2} |
| !32 = !{} |
| !33 = !DILocation(line: 11, column: 11, scope: !28) |
| !34 = !DILocation(line: 12, column: 9, scope: !27) |
| !35 = !DILocation(line: 15, column: 5, scope: !10) |
| !36 = !DILocation(line: 16, column: 12, scope: !10) |
| !37 = !DILocation(line: 17, column: 1, scope: !10) |
| !38 = !DILocation(line: 16, column: 5, scope: !10) |
| !39 = !DISubprogram(name: "f1", linkageName: "_Z2f1Pi", scope: !1, file: !1, line: 1, type: !40, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) |
| !40 = !DISubroutineType(types: !41) |
| !41 = !{null, !42} |
| !42 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64) |
| !43 = !DISubprogram(name: "f2", linkageName: "_Z2f2i", scope: !1, file: !1, line: 2, type: !44, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) |
| !44 = !DISubroutineType(types: !45) |
| !45 = !{null, !13} |
