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