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1; RUN: llc %s -o - -start-after=codegenprepare -stop-before=finalize-isel \2; RUN: -mtriple=x86_64-unknown-unknown -experimental-debug-variable-locations \3; RUN: | FileCheck %s4 5; Test for a crash / weird behaviour when llvm.frameaddress.* is called.6; Today, as a concession, we emit a DBG_PHI allowing the frame register value7; to be read, but it could be expressed in other ways. Check that this works8; outside of the entry block, to avoid the frame register being recognised9; as def'd by frame-setup code or as a function argument.10 11; CHECK-LABEL: bb.1.notentry:12; CHECK: DBG_PHI $rbp13 14declare void @llvm.dbg.value(metadata, metadata, metadata)15declare ptr @llvm.frameaddress.p0(i32)16 17 ; Function Attrs: mustprogress nofree nosync nounwind sspstrong uwtable18define hidden ptr @foo() !dbg !7 {19entry:20 br label %notentry21 22notentry:23 %0 = tail call ptr @llvm.frameaddress.p0(i32 0), !dbg !1224 call void @llvm.dbg.value(metadata ptr %0, metadata !11, metadata !DIExpression()), !dbg !1225 ret ptr %026}27 28!llvm.dbg.cu = !{!0}29!llvm.module.flags = !{!3, !4, !5, !6}30!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)31!1 = !DIFile(filename: "foo.cpp", directory: ".")32!2 = !DIBasicType(name: "int", size: 8, encoding: DW_ATE_signed)33!3 = !{i32 2, !"Dwarf Version", i32 4}34!4 = !{i32 2, !"Debug Info Version", i32 3}35!5 = !{i32 1, !"wchar_size", i32 2}36!6 = !{i32 7, !"PIC Level", i32 2}37!7 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 6, type: !8, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)38!8 = !DISubroutineType(types: !9)39!9 = !{!2, !2}40!10 = !{!11}41!11 = !DILocalVariable(name: "baz", scope: !7, file: !1, line: 7, type: !2)42!12 = !DILocation(line: 10, scope: !7)43