1 ; RUN: opt -S -passes='sroa' -o - %s | FileCheck %s
2 ; RUN: opt --try-experimental-debuginfo-iterators -S -passes='sroa' -o - %s | FileCheck %s
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.
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
16 ; Function Attrs: nounwind readnone speculatable
17 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
19 ; Function Attrs: argmemonly nounwind
20 declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1) #0
22 attributes #0 = { argmemonly nounwind }
23 attributes #1 = { nounwind readnone speculatable }
26 !llvm.module.flags = !{!3, !4, !5}
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")
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)
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)
45 !16 = !DISubrange(count: 9)
46 !17 = !DILocation(line: 3, column: 18, scope: !7)
48 ; CHECK-NOT: = alloca [9 x i32]
49 ; CHECK-NOT: #dbg_declare(ptr
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]]
56 ; CHECK-NOT: = alloca [9 x i32]
57 ; CHECK-NOT: #dbg_declare(ptr