| # RUN: llc -run-pass=livedebugvalues -verify-machineinstrs -march=x86-64 -o - %s | FileCheck %s |
| # RUN: llc -force-instr-ref-livedebugvalues=1 -run-pass=livedebugvalues -verify-machineinstrs -march=x86-64 -o - %s | FileCheck %s |
| # |
| #extern void fn2(int); |
| # |
| #__attribute__((noinline)) |
| #void |
| #fn1 (int x, int y) { |
| # int u = x + y; |
| # if (x > 1) |
| # u += 1; |
| # else |
| # u += 2; |
| # int a = 7; |
| # fn2 (a); |
| # u --; |
| #} |
| # CHECK: DBG_VALUE $edi, $noreg, !14, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} |
| # CHECK-NOT: DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_LLVM_entry_value, 1) |
| |
| --- | |
| ; ModuleID = 'test.c' |
| source_filename = "test.c" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local void @fn1(i32 %x, i32 %y) local_unnamed_addr !dbg !9 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %x, metadata !14, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i32 %y, metadata !15, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i32 7, metadata !17, metadata !DIExpression()), !dbg !18 |
| tail call void @fn2(i32 7), !dbg !18 |
| ret void, !dbg !18 |
| } |
| |
| declare !dbg !4 dso_local void @fn2(i32) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!5, !6, !7} |
| !llvm.ident = !{!8} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None) |
| !1 = !DIFile(filename: "test.c", directory: "/dir") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "fn2", scope: !1, file: !1, line: 11, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !{i32 2, !"Dwarf Version", i32 4} |
| !6 = !{i32 2, !"Debug Info Version", i32 3} |
| !7 = !{i32 1, !"wchar_size", i32 4} |
| !8 = !{!"clang version 9.0.0"} |
| !9 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 15, type: !10, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13) |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{null, !12, !12} |
| !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !13 = !{!14, !15, !16, !17} |
| !14 = !DILocalVariable(name: "x", arg: 1, scope: !9, file: !1, line: 15, type: !12) |
| !15 = !DILocalVariable(name: "y", arg: 2, scope: !9, file: !1, line: 15, type: !12) |
| !16 = !DILocalVariable(name: "u", scope: !9, file: !1, line: 16, type: !12) |
| !17 = !DILocalVariable(name: "a", scope: !9, file: !1, line: 21, type: !12) |
| !18 = !DILocation(line: 15, column: 10, scope: !9) |
| |
| ... |
| --- |
| name: fn1 |
| alignment: 16 |
| tracksRegLiveness: true |
| liveins: [] |
| body: | |
| bb.0.entry: |
| DBG_VALUE $edi, $noreg, !14, !DIExpression(), debug-location !18 |
| DBG_VALUE $esi, $noreg, !15, !DIExpression(), debug-location !18 |
| DBG_VALUE 7, $noreg, !17, !DIExpression(), debug-location !18 |
| $edi = MOV32ri 7, debug-location !18 |
| TAILJMPd64 @fn2, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $edi, debug-location !18 |
| |
| ... |