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1# RUN: llc -mtriple=x86_64-apple-macos %s -start-before=livedebugvalues -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s2# CHECK: DW_TAG_subprogram3# Test that LiveDebugValues can handle MBBs that are not reachable in a RPOT.4--- |5 define hidden zeroext i1 @__foo_block_invoke(ptr nocapture noundef readonly %.block_descriptor, i64 noundef %type) !dbg !5 {6 entry:7 %call2.i = tail call zeroext i8 @foo_len(), !dbg !108 %cmp.i102.i = icmp ult i8 %call2.i, 64, !dbg !109 br i1 %cmp.i102.i, label %bar_length.exit105.i, label %if.else.i103.i, !dbg !1010 if.else.i103.i: ; preds = %sw.bb.i11 br label %bar_length.exit105.i12 bar_length.exit105.i: ; preds = %if.else.i103.i, %sw.bb.i13 unreachable14 baz_size.exit: ; preds = %bar_length.exit131.i, %bar_length.exit105.i, %bar_length.exit.i.baz_size.exit_crit_edge15 unreachable16 }17 declare zeroext i8 @foo_len() local_unnamed_addr18 !llvm.dbg.cu = !{!0}19 !llvm.module.flags = !{!3}20 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !6, producer: "Apple clang", isOptimized: true, flags: "-fsanitize=fuzzer-no-link,address", runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, splitDebugInlining: false, nameTableKind: None, sysroot: "/", sdk: "MacOSX.sdk")21 !2 = !{}22 !3 = !{i32 2, !"Debug Info Version", i32 3}23 !5 = distinct !DISubprogram(name: "__foo_block_invoke", linkageName: "__foo_block_invoke", scope: !6, file: !6, line: 557, type: !7, scopeLine: 557, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)24 !6 = !DIFile(filename: "t.c", directory: "")25 !7 = !DISubroutineType(types: !2)26 !10 = !DILocation(line: 558, column: 7, scope: !12)27 !12 = distinct !DILexicalBlock(scope: !5, file: !6, line: 557, column: 50)28name: __foo_block_invoke29body: |30 bb.0.entry:31 JCC_1 %bb.1, 5, implicit $eflags, debug-location !1032 bb.28.baz_size.exit:33 RET64 $al, debug-location !1034 bb.1:35 successors: 36 bb.25.if.else.i103.i (machine-block-address-taken):37 JMP_1 %bb.2838