1 # RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \
2 # RUN: | llvm-dwarfdump -v -name=param - | FileCheck %s
4 # Generated with opt -sroa -inline, llc -stop-after=livedebugvalues, with some
5 # metadata removed by hand.
8 # __attribute__((always_inline))
9 # static void inline_me(int param) {
15 # int fun(int number) {
22 # The inlined parameter 'param' is available for the entirety of its enclosing
23 # scope. We expect to see a single location entry despite the fact that the
24 # final instruction in that scope belongs to a dominated scope.
26 # Except for 'param', all DILocalVariable metadata has been removed.
28 # Ignore first entry (abstract), we want to look at the concrete instance.
29 # CHECK: DW_TAG_formal_parameter [
30 # CHECK: DW_TAG_formal_parameter [
31 # CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)
32 # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "param"
35 target triple = "x86_64-unknown-linux-gnu"
37 @glob = dso_local global i32 0, align 4, !dbg !0
38 declare void @llvm.dbg.declare(metadata, metadata, metadata)
39 declare void @llvm.dbg.value(metadata, metadata, metadata)
40 define dso_local i32 @fun(i32 %number) !dbg !11 {
42 call void @llvm.dbg.value(metadata i32 %number, metadata !17, metadata !DIExpression()), !dbg !24
43 store i32 %number, i32* @glob, align 4, !dbg !27
44 %tobool = icmp ne i32 %number, 0, !dbg !32
45 br i1 %tobool, label %return, label %if.end, !dbg !34
47 if.end: ; preds = %entry
48 br label %return, !dbg !35
50 return: ; preds = %entry, %if.end
51 %retval.0 = phi i32 [ 1, %if.end ], [ 0, %entry ], !dbg !16
52 ret i32 %retval.0, !dbg !36
56 !llvm.module.flags = !{!7, !8, !9}
59 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
60 !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
61 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
62 !3 = !DIFile(filename: "test.c", directory: "/")
65 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
66 !7 = !{i32 7, !"Dwarf Version", i32 4}
67 !8 = !{i32 2, !"Debug Info Version", i32 3}
68 !9 = !{i32 1, !"wchar_size", i32 4}
69 !10 = !{!"clang version 11.0.0"}
70 !11 = distinct !DISubprogram(name: "fun", scope: !3, file: !3, line: 9, type: !12, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)
71 !12 = !DISubroutineType(types: !13)
74 !16 = !DILocation(line: 0, scope: !11)
75 !17 = !DILocalVariable(name: "param", arg: 1, scope: !18, file: !3, line: 3, type: !6)
76 !18 = distinct !DISubprogram(name: "inline_me", scope: !3, file: !3, line: 3, type: !19, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)
77 !19 = !DISubroutineType(types: !20)
80 !23 = distinct !DILexicalBlock(scope: !18, file: !3, line: 4, column: 3)
81 !24 = !DILocation(line: 0, scope: !18, inlinedAt: !25)
82 !25 = distinct !DILocation(line: 10, column: 3, scope: !11)
83 !26 = !DILocation(line: 0, scope: !23, inlinedAt: !25)
84 !27 = !DILocation(line: 6, column: 10, scope: !23, inlinedAt: !25)
85 !32 = !DILocation(line: 11, column: 7, scope: !33)
86 !33 = distinct !DILexicalBlock(scope: !11, file: !3, line: 11, column: 7)
87 !34 = !DILocation(line: 11, column: 7, scope: !11)
88 !35 = !DILocation(line: 13, column: 3, scope: !11)
89 !36 = !DILocation(line: 14, column: 1, scope: !11)
96 successors: %bb.2(0x50000000), %bb.1(0x30000000)
99 DBG_VALUE $edi, $noreg, !17, !DIExpression(), debug-location !24
100 MOV32mr $rip, 1, $noreg, @glob, $noreg, renamable $edi, debug-location !27 :: (store (s32) into @glob)
101 renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
102 TEST32rr killed renamable $edi, renamable $edi, implicit-def $eflags, debug-location !32
103 JCC_1 %bb.1, 4, implicit $eflags, debug-location !34
108 RETQ $eax, debug-location !36
111 renamable $eax = MOV32ri 1
112 RETQ $eax, debug-location !36