64 lines · plain
1; RUN: opt -S -passes=instcombine %s -o - | FileCheck %s2 3; For performance reasons, we currently limit the number of values that can be4; referenced by a dbg.value to 16. This test checks that we do not exceed this5; limit during salvaging.6 7; CHECK: DIArgList(i32 poison8; CHECK-NOT: DW_OP_LLVM_arg, 169 10target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"11target triple = "x86_64-unknown-linux-gnu"12 13define i32 @_Z3foov() local_unnamed_addr !dbg !9 {14entry:15 %call = call i32 @_Z3barv(), !dbg !1416 %call1 = call i32 @_Z3barv(), !dbg !1417 %add = add nsw i32 %call, %call1, !dbg !1418 %call2 = call i32 @_Z3barv(), !dbg !1419 %call4 = call i32 @_Z3barv(), !dbg !1420 %call6 = call i32 @_Z3barv(), !dbg !1421 %call8 = call i32 @_Z3barv(), !dbg !1422 %call10 = call i32 @_Z3barv(), !dbg !1423 %call12 = call i32 @_Z3barv(), !dbg !1424 %call14 = call i32 @_Z3barv(), !dbg !1425 %call16 = call i32 @_Z3barv(), !dbg !1426 %call18 = call i32 @_Z3barv(), !dbg !1427 %call20 = call i32 @_Z3barv(), !dbg !1428 %call22 = call i32 @_Z3barv(), !dbg !1429 %call24 = call i32 @_Z3barv(), !dbg !1430 %call26 = call i32 @_Z3barv(), !dbg !1431 %call28 = call i32 @_Z3barv(), !dbg !1432 %call30 = call i32 @_Z3barv(), !dbg !1433 call void @llvm.dbg.value(metadata !DIArgList(i32 %add, i32 %call30, i32 %call28, i32 %call26, i32 %call24, i32 %call22, i32 %call20, i32 %call18, i32 %call16, i32 %call14, i32 %call12, i32 %call10, i32 %call8, i32 %call6, i32 %call4, i32 %call2), metadata !15, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 15, DW_OP_plus, DW_OP_LLVM_arg, 14, DW_OP_plus, DW_OP_LLVM_arg, 13, DW_OP_plus, DW_OP_LLVM_arg, 12, DW_OP_plus, DW_OP_LLVM_arg, 11, DW_OP_plus, DW_OP_LLVM_arg, 10, DW_OP_plus, DW_OP_LLVM_arg, 9, DW_OP_plus, DW_OP_LLVM_arg, 8, DW_OP_plus, DW_OP_LLVM_arg, 7, DW_OP_plus, DW_OP_LLVM_arg, 6, DW_OP_plus, DW_OP_LLVM_arg, 5, DW_OP_plus, DW_OP_LLVM_arg, 4, DW_OP_plus, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_plus, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value)), !dbg !1634 %call32 = call i32 @_Z3barv(), !dbg !1735 ret i32 %call32, !dbg !1736}37 38declare dso_local i32 @_Z3barv() local_unnamed_addr39 40declare void @llvm.dbg.value(metadata, metadata, metadata)41 42!llvm.dbg.cu = !{!0}43!llvm.module.flags = !{!3, !4, !5, !6, !7}44!llvm.ident = !{!8}45 46!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)47!1 = !DIFile(filename: "limit-arglist-size.cpp", directory: "/")48!2 = !{}49!3 = !{i32 7, !"Dwarf Version", i32 4}50!4 = !{i32 2, !"Debug Info Version", i32 3}51!5 = !{i32 1, !"wchar_size", i32 4}52!6 = !{i32 7, !"uwtable", i32 1}53!7 = !{i32 7, !"frame-pointer", i32 2}54!8 = !{!"clang version 13.0.0"}55!9 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !10, file: !10, line: 3, type: !11, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)56!10 = !DIFile(filename: "./limit-arglist-size.cpp", directory: "/")57!11 = !DISubroutineType(types: !12)58!12 = !{!13}59!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)60!14 = !DILocation(line: 4, scope: !9)61!15 = !DILocalVariable(name: "v16", scope: !9, file: !10, line: 4, type: !13)62!16 = !DILocation(line: 0, scope: !9)63!17 = !DILocation(line: 5, scope: !9)64