| # RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect %s -o - | FileCheck %s |
| |
| --- | |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| |
| define void @test_dbg_value() !dbg !5 { |
| ; Keep the dbg metadata live by referencing it in the IR. |
| call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !DIExpression()), !dbg !9 |
| ret void |
| } |
| |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "llvm", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "test.ll", directory: "/tmp") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = distinct !DISubprogram(name: "test_dbg_value", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !6 = !DISubroutineType(types: !2) |
| !7 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !8) |
| !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !9 = !DILocation(line: 1, column: 1, scope: !5) |
| ... |
| |
| --- |
| # CHECK-LABEL: name: test_dbg_value |
| name: test_dbg_value |
| legalized: true |
| # CHECK: registers: |
| # CHECK-NEXT: - { id: 0, class: gpr, preferred-register: '' } |
| body: | |
| bb.0: |
| liveins: $w0 |
| %0:_(s32) = COPY $w0 |
| ; CHECK: DBG_VALUE debug-use %0(s32), debug-use $noreg, !7, !DIExpression(), debug-location !9 |
| DBG_VALUE debug-use %0(s32), debug-use $noreg, !7, !DIExpression(), debug-location !9 |
| |
| ; CHECK: DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9 |
| DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9 |
| ... |