1; RUN: opt -S -loop-reduce %s | FileCheck %s 2; RUN: opt --try-experimental-debuginfo-iterators -S -loop-reduce %s | FileCheck %s 3; 4; Test that LSR SCEV-based salvaging does not crash when translating SCEVs 5; that contain integers with binary representations greater than 64-bits. 6; Also show that no salvaging attempt is made for dbg.value that are undef 7; pre-LSR. 8; 9; CHECK: #dbg_value(i64 undef, !{{[0-9]+}}, !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value), 10; CHECK: #dbg_value(i64 %var2, !{{[0-9]+}}, !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value), 11 12 13target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 14target triple = "x86_64-unknown-linux-gnu" 15 16; Function Attrs: nofree nosync nounwind readnone speculatable willreturn 17declare void @llvm.dbg.value(metadata, metadata, metadata) 18 19; Function Attrs: nounwind 20define hidden void @reproducer() local_unnamed_addr !dbg !5 { 21init: 22 %0 = lshr i128 undef, 64 23 %var1 = trunc i128 %0 to i64 24 %1 = add nuw i64 undef, %var1 25 %var2 = lshr i64 %1, 12 26 br label %Label_d0 27 28Label_d0: ; preds = %Label_d0, %init 29 %var3 = phi i64 [ %var2, %init ], [ %var4, %Label_d0 ] 30 call void @llvm.dbg.value(metadata i64 undef, metadata !11, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value)), !dbg !12 31 call void @llvm.dbg.value(metadata i64 %var2, metadata !11, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value)), !dbg !12 32 %var4 = add i64 %var3, -1 33 %var5 = icmp eq i64 %var4, 0 34 br i1 %var5, label %Label_1bc, label %Label_d0 35 36Label_1bc: ; preds = %Label_d0 37 ret void 38} 39 40!llvm.dbg.cu = !{!0} 41!llvm.module.flags = !{!3, !4} 42 43!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "frontend", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 44!1 = !DIFile(filename: "source", directory: "") 45!2 = !{} 46!3 = !{i32 2, !"Debug Info Version", i32 3} 47!4 = !{i32 1, !"wchar_size", i32 4} 48!5 = distinct !DISubprogram(name: "reproducer", scope: !1, file: !1, line: 904320, type: !6, scopeLine: 904320, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !10) 49!6 = !DISubroutineType(types: !7) 50!7 = !{null, !8, !9, !9, !9, !9, !9, !9} 51!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) 52!9 = !DIBasicType(name: "my_type", size: 64, encoding: DW_ATE_unsigned) 53!10 = !{!11} 54!11 = !DILocalVariable(name: "my_var", arg: 1, scope: !5, file: !1, line: 904320, type: !8) 55!12 = !DILocation(line: 904544, scope: !5)