1; REQUIRES: x86-registered-target 2; RUN: llc -start-before=codegenprepare -stop-after=codegenprepare \ 3; RUN: -mtriple=x86_64-unknown-unknown %s -o - \ 4; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg." 5 6;; Test with RemoveDIs non-intrinsic debug-info too. 7; RUN: llc -start-before=codegenprepare -stop-after=codegenprepare \ 8; RUN: -mtriple=x86_64-unknown-unknown %s -o - --try-experimental-debuginfo-iterators \ 9; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg." 10 11;; Check that when CodeGenPrepare moves an address computation to a block it's 12;; used in its dbg.assign uses are updated. 13;; 14;; Based on llvm/test/DebugInfo/X86/codegenprepare-addrsink.ll 15 16define dso_local i8 @foo(ptr %p, i32 %cond) !dbg !7 { 17entry: 18 %casted = bitcast ptr %p to ptr 19 %arith = getelementptr i8, ptr %casted, i32 3 20 %load1 = load i8, ptr %arith 21 %cmpresult = icmp eq i32 %cond, 0 22 br i1 %cmpresult, label %next, label %ret 23 24next: 25; Address calcs should be duplicated into this block. One dbg.value should be 26; updated, and the other should not. 27; CHECK-LABEL: next: 28; CHECK: %[[CASTVAR:[0-9a-zA-Z]+]] = bitcast ptr %p to ptr 29; CHECK-NEXT: #dbg_assign(ptr %arith, ![[DIVAR:[0-9]+]], 30; CHECK-NEXT: %[[GEPVAR:[0-9a-zA-Z]+]] = getelementptr i8, ptr %[[CASTVAR]], i64 3 31; CHECK-NEXT: %loaded = load i8, ptr %[[GEPVAR]] 32; CHECK-NEXT: #dbg_assign(ptr %[[GEPVAR]], ![[DIVAR]], 33 call void @llvm.dbg.assign(metadata ptr %arith, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !14 34 %loaded = load i8, ptr %arith 35 call void @llvm.dbg.assign(metadata ptr %arith, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !14 36 ret i8 %loaded 37 38ret: 39 ret i8 0 40} 41 42; CHECK: ![[DIVAR]] = !DILocalVariable(name: "p", 43 44declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) 45 46!llvm.dbg.cu = !{!0} 47!llvm.module.flags = !{!3, !4, !5, !1000} 48!llvm.ident = !{!6} 49 50!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 51!1 = !DIFile(filename: "test.cpp", directory: ".") 52!2 = !{} 53!3 = !{i32 2, !"Dwarf Version", i32 4} 54!4 = !{i32 2, !"Debug Info Version", i32 3} 55!5 = !{i32 1, !"wchar_size", i32 4} 56!6 = !{!"clang version 8.0.0 (trunk 348209)"} 57!7 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 4, type: !8, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 58!8 = !DISubroutineType(types: !9) 59!9 = !{null, !10} 60!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 61!11 = !{!12} 62!12 = !DILocalVariable(name: "p", arg: 1, scope: !7, file: !1, line: 4, type: !10) 63!14 = !DILocation(line: 4, column: 15, scope: !7) 64!20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7) 65!21 = distinct !DIAssignID() 66!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 67