1 ; Test that alloca merging in the inliner places dbg.declare calls immediately 2 ; after the merged alloca. Not at the end of the entry BB, and definitely not 3 ; before the alloca. 4 ; 5 ; clang -g -S -emit-llvm -Xclang -disable-llvm-optzns 6 ; 7 ;__attribute__((always_inline)) void f() { 8 ; char aaa[100]; 9 ; aaa[10] = 1; 10 ;} 11 ; 12 ;__attribute__((always_inline)) void g() { 13 ; char bbb[100]; 14 ; bbb[20] = 1; 15 ;} 16 ; 17 ;void h() { 18 ; f(); 19 ; g(); 20 ;} 21 ; 22 ; RUN: opt -always-inline -S < %s | FileCheck %s 23 ; 24 ; CHECK: define void @h() 25 ; CHECK-NEXT: entry: 26 ; CHECK-NEXT: %[[AI:.*]] = alloca [100 x i8] 27 ; CHECK-NEXT: call void @llvm.dbg.declare(metadata [100 x i8]* %[[AI]], 28 ; CHECK-NEXT: call void @llvm.dbg.declare(metadata [100 x i8]* %[[AI]], 29 30 31 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 32 target triple = "x86_64-unknown-linux-gnu" 33 34 ; Function Attrs: alwaysinline nounwind uwtable 35 define void @f() #0 !dbg !4 { 36 entry: 37 %aaa = alloca [100 x i8], align 16 38 call void @llvm.dbg.declare(metadata [100 x i8]* %aaa, metadata !12, metadata !17), !dbg !18 39 %arrayidx = getelementptr inbounds [100 x i8], [100 x i8]* %aaa, i64 0, i64 10, !dbg !19 40 store i8 1, i8* %arrayidx, align 2, !dbg !20 41 ret void, !dbg !21 42 } 43 44 ; Function Attrs: nounwind readnone 45 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 46 47 ; Function Attrs: alwaysinline nounwind uwtable 48 define void @g() #0 !dbg !7 { 49 entry: 50 %bbb = alloca [100 x i8], align 16 51 call void @llvm.dbg.declare(metadata [100 x i8]* %bbb, metadata !22, metadata !17), !dbg !23 52 %arrayidx = getelementptr inbounds [100 x i8], [100 x i8]* %bbb, i64 0, i64 20, !dbg !24 53 store i8 1, i8* %arrayidx, align 4, !dbg !25 54 ret void, !dbg !26 55 } 56 57 ; Function Attrs: nounwind uwtable 58 define void @h() #2 !dbg !8 { 59 entry: 60 call void @f(), !dbg !27 61 call void @g(), !dbg !28 62 ret void, !dbg !29 63 } 64 65 attributes #0 = { alwaysinline nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 66 attributes #1 = { nounwind readnone } 67 attributes #2 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 68 69 !llvm.dbg.cu = !{!0} 70 !llvm.module.flags = !{!9, !10} 71 !llvm.ident = !{!11} 72 73 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 248518) (llvm/trunk 248512)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3) 74 !1 = !DIFile(filename: "../1.c", directory: "/code/llvm-git/build") 75 !2 = !{} 76 !3 = !{!4, !7, !8} 77 !4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, variables: !2) 78 !5 = !DISubroutineType(types: !6) 79 !6 = !{null} 80 !7 = distinct !DISubprogram(name: "g", scope: !1, file: !1, line: 6, type: !5, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: false, variables: !2) 81 !8 = distinct !DISubprogram(name: "h", scope: !1, file: !1, line: 11, type: !5, isLocal: false, isDefinition: true, scopeLine: 11, isOptimized: false, variables: !2) 82 !9 = !{i32 2, !"Dwarf Version", i32 4} 83 !10 = !{i32 2, !"Debug Info Version", i32 3} 84 !11 = !{!"clang version 3.8.0 (trunk 248518) (llvm/trunk 248512)"} 85 !12 = !DILocalVariable(name: "aaa", scope: !4, file: !1, line: 2, type: !13) 86 !13 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 800, align: 8, elements: !15) 87 !14 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 88 !15 = !{!16} 89 !16 = !DISubrange(count: 100) 90 !17 = !DIExpression() 91 !18 = !DILocation(line: 2, column: 8, scope: !4) 92 !19 = !DILocation(line: 3, column: 3, scope: !4) 93 !20 = !DILocation(line: 3, column: 11, scope: !4) 94 !21 = !DILocation(line: 4, column: 1, scope: !4) 95 !22 = !DILocalVariable(name: "bbb", scope: !7, file: !1, line: 7, type: !13) 96 !23 = !DILocation(line: 7, column: 8, scope: !7) 97 !24 = !DILocation(line: 8, column: 3, scope: !7) 98 !25 = !DILocation(line: 8, column: 11, scope: !7) 99 !26 = !DILocation(line: 9, column: 1, scope: !7) 100 !27 = !DILocation(line: 12, column: 3, scope: !8) 101 !28 = !DILocation(line: 13, column: 3, scope: !8) 102 !29 = !DILocation(line: 14, column: 1, scope: !8) 103
