; RUN: opt -sroa < %s -S -o - | FileCheck %s ; ; Test that recursively splitting an alloca updates the debug info correctly. ; CHECK: %[[T:.*]] = load i64, i64* @t, align 8 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], i64 0, metadata ![[Y:.*]], metadata ![[P1:.*]]) ; CHECK: %[[T1:.*]] = load i64, i64* @t, align 8 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[Y]], metadata ![[P2:.*]]) ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], i64 0, metadata ![[R:.*]], metadata ![[P3:.*]]) ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[R]], metadata ![[P4:.*]]) ; CHECK: ![[P1]] = !DIExpression(DW_OP_bit_piece, 0, 64) ; CHECK: ![[P2]] = !DIExpression(DW_OP_bit_piece, 64, 64) ; CHECK: ![[P3]] = !DIExpression(DW_OP_bit_piece, 192, 64) ; CHECK: ![[P4]] = !DIExpression(DW_OP_bit_piece, 256, 64) ; ; struct p { ; __SIZE_TYPE__ s; ; __SIZE_TYPE__ t; ; }; ; ; struct r { ; int i; ; struct p x; ; struct p y; ; }; ; ; extern int call_me(struct r); ; extern int maybe(); ; extern __SIZE_TYPE__ t; ; ; int test() { ; if (maybe()) ; return 0; ; struct p y = {t, t}; ; struct r r = {.y = y}; ; return call_me(r); ; } ; ModuleID = 'pr22393.cc' target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-darwin" %struct.p = type { i64, i64 } %struct.r = type { i32, %struct.p, %struct.p } @t = external global i64 ; Function Attrs: nounwind define i32 @_Z4testv() #0 !dbg !17 { entry: %retval = alloca i32, align 4 %y = alloca %struct.p, align 8 %r = alloca %struct.r, align 8 %agg.tmp = alloca %struct.r, align 8 %call = call i32 @_Z5maybev(), !dbg !24 %tobool = icmp ne i32 %call, 0, !dbg !24 br i1 %tobool, label %if.then, label %if.end, !dbg !26 if.then: ; preds = %entry store i32 0, i32* %retval, !dbg !27 br label %return, !dbg !27 if.end: ; preds = %entry call void @llvm.dbg.declare(metadata %struct.p* %y, metadata !28, metadata !29), !dbg !30 %s = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 0, !dbg !30 %0 = load i64, i64* @t, align 8, !dbg !30 store i64 %0, i64* %s, align 8, !dbg !30 %t = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 1, !dbg !30 %1 = load i64, i64* @t, align 8, !dbg !30 store i64 %1, i64* %t, align 8, !dbg !30 call void @llvm.dbg.declare(metadata %struct.r* %r, metadata !31, metadata !29), !dbg !32 %i = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 0, !dbg !32 store i32 0, i32* %i, align 4, !dbg !32 %x = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 1, !dbg !32 %s1 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 0, !dbg !32 store i64 0, i64* %s1, align 8, !dbg !32 %t2 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 1, !dbg !32 store i64 0, i64* %t2, align 8, !dbg !32 %y3 = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 2, !dbg !32 %2 = bitcast %struct.p* %y3 to i8*, !dbg !32 %3 = bitcast %struct.p* %y to i8*, !dbg !32 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 16, i32 8, i1 false), !dbg !32 %4 = bitcast %struct.r* %agg.tmp to i8*, !dbg !33 %5 = bitcast %struct.r* %r to i8*, !dbg !33 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 8, i1 false), !dbg !33 %call4 = call i32 @_Z7call_me1r(%struct.r* byval align 8 %agg.tmp), !dbg !33 store i32 %call4, i32* %retval, !dbg !33 br label %return, !dbg !33 return: ; preds = %if.end, %if.then %6 = load i32, i32* %retval, !dbg !34 ret i32 %6, !dbg !34 } declare i32 @_Z5maybev() ; Function Attrs: nounwind readnone declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 ; Function Attrs: nounwind declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #3 declare i32 @_Z7call_me1r(%struct.r* byval align 8) attributes #0 = { nounwind } attributes #2 = { nounwind readnone } attributes #3 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!21, !22} !llvm.ident = !{!23} !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !16, globals: !2, imports: !2) !1 = !DIFile(filename: "", directory: "") !2 = !{} !3 = !{!4, !10} !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p") !5 = !DIFile(filename: "pr22393.cc", directory: "") !6 = !{!7, !9} !7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !"_ZTS1p", baseType: !8) !8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) !9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !"_ZTS1p", baseType: !8) !10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r") !11 = !{!12, !14, !15} !12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !"_ZTS1r", baseType: !13) !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) !14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !"_ZTS1r", baseType: !"_ZTS1p") !15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !"_ZTS1r", baseType: !"_ZTS1p") !16 = !{!17} !17 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 18, file: !5, scope: !18, type: !19, variables: !2) !18 = !DIFile(filename: "pr22393.cc", directory: "") !19 = !DISubroutineType(types: !20) !20 = !{!13} !21 = !{i32 2, !"Dwarf Version", i32 4} !22 = !{i32 2, !"Debug Info Version", i32 3} !23 = !{!"clang version 3.7.0 "} !24 = !DILocation(line: 19, scope: !25) !25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17) !26 = !DILocation(line: 19, scope: !17) !27 = !DILocation(line: 20, scope: !25) !28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !"_ZTS1p") !29 = !DIExpression() !30 = !DILocation(line: 21, scope: !17) !31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !"_ZTS1r") !32 = !DILocation(line: 22, scope: !17) !33 = !DILocation(line: 23, scope: !17) !34 = !DILocation(line: 24, scope: !17)