| ; RUN: llc %s -stop-before=finalize-isel -march=aarch64 -o - \ |
| ; RUN: -experimental-debug-variable-locations | FileCheck %s |
| |
| ; Test that when an SSA Value becomes a constant-physreg copy, under the |
| ; instruction referencing model, the COPY is labelled. In the general case |
| ; labelling a copy is undesirable -- this test really checks that we don't |
| ; crash, and we don't just drop the information. |
| |
| ; CHECK: DBG_PHI $xzr, 1 |
| ; CHECK: DBG_INSTR_REF 1, 0 |
| |
| define i64 @test() !dbg !7 { |
| %foo = add i64 0, 0 |
| call void @llvm.dbg.value(metadata i64 %foo, metadata !12, metadata !DIExpression()), !dbg !13 |
| ret i64 %foo, !dbg !13 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "test.c", directory: "/tmp/out.c") |
| !2 = !{} |
| !3 = !{i32 7, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{!""} |
| !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{!10, !11, !11} |
| !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) |
| !12 = !DILocalVariable(name: "bar", arg: 1, scope: !7, file: !1, line: 3, type: !11) |
| !13 = !DILocation(line: 0, scope: !7) |
| !14 = !DILocalVariable(name: "baz", arg: 2, scope: !7, file: !1, line: 3, type: !11) |
