mirror of
https://github.com/RPCS3/llvm-mirror.git
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52b363d22e
This reverts commit 1f3dd83cc1f2b8f72b9d59e2b4221b12fb7f9a95, reapplying
commit bb1b0bc4e57428ce364d3d6c075ff03cb8973462.
The original commit failed on some builds seemingly due to the use of a
bracketed constructor with an std::array, i.e. `std::array<> arr({...})`.
82 lines
4.3 KiB
LLVM
82 lines
4.3 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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; Make sure to update the debug value after dead code elimination.
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; CHECK: %call = call signext i8 @b(i32 6), !dbg !39
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i8 %call, metadata !30, metadata !DIExpression(DW_OP_LLVM_convert, 8, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_stack_value)), !dbg !38
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@e = common local_unnamed_addr global i8 0, align 1, !dbg !0
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@c = common local_unnamed_addr global i32 0, align 4, !dbg !6
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@d = common local_unnamed_addr global i32 0, align 4, !dbg !10
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define signext i8 @b(i32 %f) local_unnamed_addr #0 !dbg !18 {
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entry:
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call void @llvm.dbg.value(metadata i32 %f, metadata !22, metadata !DIExpression()), !dbg !23
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%conv = trunc i32 %f to i8, !dbg !24
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ret i8 %conv, !dbg !25
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}
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define i32 @main() local_unnamed_addr #0 !dbg !26 {
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entry:
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%0 = load i8, i8* @e, align 1, !dbg !31, !tbaa !32
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%conv = sext i8 %0 to i32, !dbg !31
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store i32 %conv, i32* @c, align 4, !dbg !35, !tbaa !36
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call void @llvm.dbg.value(metadata i32 -1372423381, metadata !30, metadata !DIExpression()), !dbg !38
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%call = call signext i8 @b(i32 6), !dbg !39
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%conv1 = sext i8 %call to i32, !dbg !39
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call void @llvm.dbg.value(metadata i32 %conv1, metadata !30, metadata !DIExpression()), !dbg !38
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%1 = load i32, i32* @d, align 4, !dbg !40, !tbaa !36
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%call2 = call i32 (...) @optimize_me_not(), !dbg !41
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ret i32 0, !dbg !42
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}
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declare i32 @optimize_me_not(...) local_unnamed_addr #1
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!13, !14, !15, !16}
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!llvm.ident = !{!17}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "e", scope: !2, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project b306ef12f046353ea5bda4b3b77759e57909a0db)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU)
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!3 = !DIFile(filename: "a.c", directory: "/Users/davide/llvm/build/bin")
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!4 = !{}
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!5 = !{!6, !10, !0}
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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!7 = distinct !DIGlobalVariable(name: "c", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
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!8 = !DIDerivedType(tag: DW_TAG_typedef, name: "a", file: !3, line: 1, baseType: !9)
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!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())
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!11 = distinct !DIGlobalVariable(name: "d", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
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!12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!13 = !{i32 2, !"Dwarf Version", i32 4}
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!14 = !{i32 2, !"Debug Info Version", i32 3}
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!15 = !{i32 1, !"wchar_size", i32 4}
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!16 = !{i32 7, !"PIC Level", i32 2}
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!17 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project b306ef12f046353ea5bda4b3b77759e57909a0db)"}
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!18 = distinct !DISubprogram(name: "b", scope: !3, file: !3, line: 4, type: !19, scopeLine: 4, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)
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!19 = !DISubroutineType(types: !20)
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!20 = !{!12, !9}
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!21 = !{!22}
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!22 = !DILocalVariable(name: "f", arg: 1, scope: !18, file: !3, line: 4, type: !9)
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!23 = !DILocation(line: 4, column: 9, scope: !18)
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!24 = !DILocation(line: 4, column: 21, scope: !18)
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!25 = !DILocation(line: 4, column: 14, scope: !18)
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!26 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 5, type: !27, scopeLine: 5, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !29)
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!27 = !DISubroutineType(types: !28)
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!28 = !{!9}
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!29 = !{!30}
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!30 = !DILocalVariable(name: "l_1499", scope: !26, file: !3, line: 7, type: !8)
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!31 = !DILocation(line: 6, column: 7, scope: !26)
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!32 = !{!33, !33, i64 0}
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!33 = !{!"omnipotent char", !34, i64 0}
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!34 = !{!"Simple C/C++ TBAA"}
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!35 = !DILocation(line: 6, column: 5, scope: !26)
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!36 = !{!37, !37, i64 0}
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!37 = !{!"int", !33, i64 0}
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!38 = !DILocation(line: 7, column: 5, scope: !26)
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!39 = !DILocation(line: 8, column: 12, scope: !26)
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!40 = !DILocation(line: 9, column: 11, scope: !26)
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!41 = !DILocation(line: 10, column: 3, scope: !26)
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!42 = !DILocation(line: 11, column: 1, scope: !26)
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