| ; RUN: opt -simplifycfg -S < %s | FileCheck %s |
| ; Verify that we don't crash due an invalid !dbg location on the hoisted llvm.dbg.value |
| |
| define i64 @caller(i64* %ptr, i64 %flag) !dbg !10 { |
| init: |
| %v9 = icmp eq i64 %flag, 0 |
| br i1 %v9, label %a, label %b |
| |
| ; CHECK: %vala = load i64, i64* %ptr |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 %vala, metadata [[MD:![0-9]*]] |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 %vala, metadata [[MD]] |
| ; CHECK-NEXT: %valbmasked = and i64 %vala, 1 |
| |
| a: ; preds = %init |
| %vala = load i64, i64* %ptr, align 8 |
| call void @llvm.dbg.value(metadata i64 %vala, metadata !8, metadata !DIExpression()), !dbg !12 |
| br label %test.exit |
| |
| b: ; preds = %init |
| %valb = load i64, i64* %ptr, align 8 |
| call void @llvm.dbg.value(metadata i64 %valb, metadata !8, metadata !DIExpression()), !dbg !13 |
| %valbmasked = and i64 %valb, 1 |
| br label %test.exit |
| |
| test.exit: ; preds = %a, %b |
| %retv = phi i64 [ %vala, %a ], [ %valbmasked, %b ] |
| ret i64 %retv |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #0 |
| |
| attributes #0 = { nounwind readnone speculatable } |
| |
| !llvm.module.flags = !{!0} |
| !llvm.dbg.cu = !{!1} |
| |
| !0 = !{i32 2, !"Debug Info Version", i32 3} |
| !1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !3) |
| !2 = !DIFile(filename: "optbug", directory: "") |
| !3 = !{} |
| !4 = distinct !DISubprogram(name: "callee", scope: !2, file: !2, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !1, retainedNodes: !7) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null} |
| !7 = !{!8} |
| !8 = !DILocalVariable(name: "var", scope: !4, file: !2, type: !9) |
| !9 = !DIBasicType(name: "var_t", size: 64, encoding: DW_ATE_unsigned) |
| !10 = distinct !DISubprogram(name: "caller", scope: !2, file: !2, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, isOptimized: false, unit: !1, retainedNodes: !3) |
| !11 = distinct !DILocation(line: 6, scope: !10) |
| !12 = !DILocation(line: 2, scope: !4, inlinedAt: !11) |
| !13 = !DILocation(line: 3, scope: !4, inlinedAt: !11) |