1; RUN: opt -S -passes='sroa' -o - %s | FileCheck %s 2; RUN: opt --try-experimental-debuginfo-iterators -S -passes='sroa' -o - %s | FileCheck %s 3 4; SROA should split the alloca in two new ones, each with its own dbg.declare. 5; The original alloca and dbg.declare should be removed. 6 7define void @f1() { 8entry: 9 %0 = alloca [9 x i32] 10 call void @llvm.dbg.declare(metadata ptr %0, metadata !11, metadata !DIExpression()), !dbg !17 11 call void @llvm.memset.p0.i64(ptr align 16 %0, i8 0, i64 36, i1 true) 12 store volatile i32 1, ptr %0 13 ret void 14} 15 16; Function Attrs: nounwind readnone speculatable 17declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 18 19; Function Attrs: argmemonly nounwind 20declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1) #0 21 22attributes #0 = { argmemonly nounwind } 23attributes #1 = { nounwind readnone speculatable } 24 25!llvm.dbg.cu = !{!0} 26!llvm.module.flags = !{!3, !4, !5} 27!llvm.ident = !{!6} 28 29!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 30!1 = !DIFile(filename: "foo.c", directory: "/bar") 31!2 = !{} 32!3 = !{i32 2, !"Dwarf Version", i32 4} 33!4 = !{i32 2, !"Debug Info Version", i32 3} 34!5 = !{i32 1, !"wchar_size", i32 4} 35!6 = !{!"clang version 6.0.0"} 36!7 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !10) 37!8 = !DISubroutineType(types: !9) 38!9 = !{null} 39!10 = !{!11} 40!11 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 3, type: !12) 41!12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 288, elements: !15) 42!13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !14) 43!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 44!15 = !{!16} 45!16 = !DISubrange(count: 9) 46!17 = !DILocation(line: 3, column: 18, scope: !7) 47 48; CHECK-NOT: = alloca [9 x i32] 49; CHECK-NOT: #dbg_declare(ptr 50 51; CHECK: %[[VAR1:.*]] = alloca i32 52; CHECK-NEXT: %[[VAR2:.*]] = alloca [8 x i32] 53; CHECK-NEXT: #dbg_declare(ptr %[[VAR1]] 54; CHECK-NEXT: #dbg_declare(ptr %[[VAR2]] 55 56; CHECK-NOT: = alloca [9 x i32] 57; CHECK-NOT: #dbg_declare(ptr 58 59