| ; RUN: llc -mtriple=x86_64-apple-darwin %s -o - -filetype=obj | llvm-dwarfdump - | FileCheck %s |
| ; CHECK: 0x00000[[G:.*]]: DW_TAG_variable |
| ; CHECK-NEXT: DW_AT_name ("g") |
| ; CHECK: DW_TAG_array_type |
| ; CHECK-NEXT: DW_AT_type ({{.*}} "int") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_subrange_type |
| ; CHECK-NEXT: DW_AT_type ({{.*}} "__ARRAY_SIZE_TYPE__") |
| ; CHECK-NEXT: DW_AT_count (0x00000[[G]]) |
| ; Test that a VLA referring to a global variable is handled correctly. |
| ; Clang doesn't generate this, but the verifier allows it. |
| source_filename = "/tmp/test.c" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.13.0" |
| |
| @g = common local_unnamed_addr global i32 0, align 4, !dbg !0 |
| |
| define void @f() !dbg !12 { |
| entry: |
| %0 = load i32, ptr @g, align 4, !dbg !22 |
| %1 = zext i32 %0 to i64, !dbg !22 |
| %vla = alloca i32, i64 %1, align 16, !dbg !22 |
| call void @llvm.dbg.declare(metadata ptr %vla, metadata !16, metadata !DIExpression()), !dbg !22 |
| call void @llvm.dbg.value(metadata i32 2, metadata !21, metadata !DIExpression()), !dbg !22 |
| %call = call i32 (ptr, ...) @use(ptr nonnull %vla), !dbg !22 |
| ret void, !dbg !22 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 |
| |
| declare i32 @use(...) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #0 |
| |
| attributes #0 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!7, !8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (trunk 324259) (llvm/trunk 324261)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "/tmp/test.c", directory: "/") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) |
| !7 = !{i32 2, !"Dwarf Version", i32 4} |
| !8 = !{i32 2, !"Debug Info Version", i32 3} |
| !9 = !{i32 1, !"wchar_size", i32 4} |
| !10 = !{i32 7, !"PIC Level", i32 2} |
| !11 = !{!"clang version 7.0.0 (trunk 324259) (llvm/trunk 324261)"} |
| !12 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 3, type: !13, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !2, retainedNodes: !15) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{null} |
| !15 = !{!16, !21} |
| !16 = !DILocalVariable(name: "array", scope: !12, file: !3, line: 4, type: !17) |
| !17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, elements: !19) |
| !18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !19 = !{!20} |
| !20 = !DISubrange(count: !1) |
| !21 = !DILocalVariable(name: "count", scope: !12, file: !3, line: 5, type: !18) |
| !22 = !DILocation(line: 7, column: 1, scope: !12) |