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60 lines
2.3 KiB
60 lines
2.3 KiB
; RUN: opt -S -sroa -o - %s | FileCheck %s
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; SROA should split the alloca in two new ones, each with its own dbg.declare.
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; The original alloca and dbg.declare should be removed.
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define void @f1() {
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entry:
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%0 = alloca [9 x i32]
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call void @llvm.dbg.declare(metadata [9 x i32]* %0, metadata !11, metadata !DIExpression()), !dbg !17
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%1 = bitcast [9 x i32]* %0 to i8*
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call void @llvm.memset.p0i8.i64(i8* align 16 %1, i8 0, i64 36, i1 true)
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%2 = getelementptr [9 x i32], [9 x i32]* %0, i32 0, i32 0
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store volatile i32 1, i32* %2
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ret void
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: argmemonly nounwind
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declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1) #0
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attributes #0 = { argmemonly nounwind }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "foo.c", directory: "/bar")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 6.0.0"}
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!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)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !{!11}
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!11 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 3, type: !12)
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!12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 288, elements: !15)
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!13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !14)
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!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!15 = !{!16}
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!16 = !DISubrange(count: 9)
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!17 = !DILocation(line: 3, column: 18, scope: !7)
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; CHECK-NOT: = alloca [9 x i32]
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; CHECK-NOT: call void @llvm.dbg.declare(metadata [9 x i32]*
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; CHECK: %[[VAR1:.*]] = alloca i32
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; CHECK-NEXT: %[[VAR2:.*]] = alloca [8 x i32]
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; CHECK-NEXT: call void @llvm.dbg.declare(metadata i32* %[[VAR1]]
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; CHECK-NEXT: call void @llvm.dbg.declare(metadata [8 x i32]* %[[VAR2]]
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; CHECK-NOT: = alloca [9 x i32]
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; CHECK-NOT: call void @llvm.dbg.declare(metadata [9 x i32]*
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