3c514d31d7
Update the EarlyCSE tests to use opaque pointers. Worth noting that this leaves some bitcast ptr to ptr instructions in the input IR behind which are no longer necessary. This is because these use numbered instructions, so it's hard to drop them in an automated fashion (as it would require renumbering all other instructions as well). I'm leaving that as a problem for another day. The test updates have been performed using https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34. Differential Revision: https://reviews.llvm.org/D127278
70 lines
3.1 KiB
LLVM
70 lines
3.1 KiB
LLVM
; RUN: opt -S %s -early-cse -earlycse-debug-hash | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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@a = global i8 25, align 1, !dbg !0
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define signext i16 @b() !dbg !12 {
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entry:
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call void @llvm.dbg.value(metadata i16 23680, metadata !17, metadata !DIExpression()), !dbg !18
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%0 = load i8, ptr @a, align 1, !dbg !19, !tbaa !20
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%conv = sext i8 %0 to i16, !dbg !19
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; CHECK: call void @llvm.dbg.value(metadata i8 %0, metadata !17, metadata !DIExpression(DW_OP_LLVM_convert, 8, DW_ATE_signed, DW_OP_LLVM_convert, 16, DW_ATE_signed, DW_OP_stack_value)), !dbg !18
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; CHECK-NEXT: call i32 (...) @optimize_me_not()
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call void @llvm.dbg.value(metadata i16 %conv, metadata !17, metadata !DIExpression()), !dbg !18
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%call = call i32 (...) @optimize_me_not(), !dbg !23
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%1 = load i8, ptr @a, align 1, !dbg !24, !tbaa !20
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%conv1 = sext i8 %1 to i16, !dbg !24
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ret i16 %conv1, !dbg !25
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare i32 @optimize_me_not(...)
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define i32 @main() !dbg !26 {
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entry:
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%call = call signext i16 @b(), !dbg !30
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ret i32 0, !dbg !31
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9, !10}
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!llvm.ident = !{!11}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU)
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!3 = !DIFile(filename: "patatino.c", directory: "/Users/davide/llvm-monorepo/llvm-mono/build/bin")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{i32 7, !"PIC Level", i32 2}
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!11 = !{!"clang version 8.0.0 "}
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!12 = distinct !DISubprogram(name: "b", scope: !3, file: !3, line: 2, type: !13, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!15}
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!15 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
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!16 = !{!17}
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!17 = !DILocalVariable(name: "i", scope: !12, file: !3, line: 3, type: !15)
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!18 = !DILocation(line: 3, column: 9, scope: !12)
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!19 = !DILocation(line: 4, column: 7, scope: !12)
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!20 = !{!21, !21, i64 0}
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!21 = !{!"omnipotent char", !22, i64 0}
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!22 = !{!"Simple C/C++ TBAA"}
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!23 = !DILocation(line: 5, column: 3, scope: !12)
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!24 = !DILocation(line: 6, column: 10, scope: !12)
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!25 = !DILocation(line: 6, column: 3, scope: !12)
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!26 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !27, scopeLine: 8, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
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!27 = !DISubroutineType(types: !28)
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!28 = !{!29}
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!29 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!30 = !DILocation(line: 8, column: 14, scope: !26)
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!31 = !DILocation(line: 8, column: 19, scope: !26)
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