1; RUN: llc --stop-after=finalize-isel < %s | FileCheck %s 2; 3; Verify that we can correctly salvage truncate expressions during SelectionDAG. 4; Fixes LLVM issue #63076. 5 6; CHECK: body 7; CHECK: DBG_INSTR_REF !{{[0-9]+}}, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_convert, 8, DW_ATE_unsigned, DW_OP_LLVM_convert, 1, DW_ATE_unsigned) 8 9source_filename = "repro.cpp" 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 dso_local noundef i32 @_Z3funv() !dbg !10 { 14entry: 15 %call = tail call noundef zeroext i1 @_Z3getv(), !dbg !17 16 call void @llvm.dbg.value(metadata i1 %call, metadata !15, metadata !DIExpression()), !dbg !18 17 %conv = zext i1 %call to i32, !dbg !19 18 ret i32 %conv, !dbg !20 19} 20 21declare !dbg !21 noundef zeroext i1 @_Z3getv() 22 23declare void @llvm.dbg.value(metadata, metadata, metadata) 24 25!llvm.dbg.cu = !{!0} 26!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8} 27!llvm.ident = !{!9} 28 29!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 18.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 30!1 = !DIFile(filename: "repro.cpp", directory: "/") 31!2 = !{i32 7, !"Dwarf Version", i32 5} 32!3 = !{i32 2, !"Debug Info Version", i32 3} 33!4 = !{i32 1, !"wchar_size", i32 4} 34!5 = !{i32 8, !"PIC Level", i32 2} 35!6 = !{i32 7, !"PIE Level", i32 2} 36!7 = !{i32 7, !"uwtable", i32 2} 37!8 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 38!9 = !{!"clang version 18.0.0"} 39!10 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 2, type: !11, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !14) 40!11 = !DISubroutineType(types: !12) 41!12 = !{!13} 42!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 43!14 = !{!15} 44!15 = !DILocalVariable(name: "b", scope: !10, file: !1, line: 4, type: !16) 45!16 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean) 46!17 = !DILocation(line: 4, column: 11, scope: !10) 47!18 = !DILocation(line: 0, scope: !10) 48!19 = !DILocation(line: 5, column: 9, scope: !10) 49!20 = !DILocation(line: 5, column: 2, scope: !10) 50!21 = !DISubprogram(name: "get", linkageName: "_Z3getv", scope: !1, file: !1, line: 1, type: !22, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) 51!22 = !DISubroutineType(types: !23) 52!23 = !{!16} 53