1 ; ModuleID = 'formal_parameter.c'
2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
3 target triple = "x86_64-apple-macosx10.9.0"
5 ; From (clang -g -c -O1):
7 ; int lookup(int* map);
12 ; if (!verify(map)) { }
15 ; RUN: opt %s -O2 -S -o %t
16 ; RUN: cat %t | FileCheck --check-prefix=LOWERING %s
17 ; RUN: llc -filetype=obj %t -o - | llvm-dwarfdump -debug-info - | FileCheck %s
18 ; Test that we only emit only one DW_AT_formal_parameter "map" for this function.
19 ; rdar://problem/14874886
21 ; CHECK: DW_TAG_formal_parameter
23 ; CHECK: DW_AT_name {{.*}}map
24 ; CHECK-NOT: DW_AT_name {{.*}}map
26 ; Function Attrs: nounwind ssp uwtable
27 define void @foo(i32 %map) #0 !dbg !4 {
29 %map.addr = alloca i32, align 4
30 store i32 %map, i32* %map.addr, align 4, !tbaa !15
31 call void @llvm.dbg.declare(metadata i32* %map.addr, metadata !10, metadata !DIExpression()), !dbg !14
32 %call = call i32 (i32*, ...) bitcast (i32 (...)* @lookup to i32 (i32*, ...)*)(i32* %map.addr) #3, !dbg !19
33 ; Ensure that all dbg intrinsics have the same scope after
34 ; LowerDbgDeclare is finished with them.
36 ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC:.*]]
37 ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
38 ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
39 %0 = load i32, i32* %map.addr, align 4, !dbg !20, !tbaa !15
40 %call1 = call i32 (i32, ...) bitcast (i32 (...)* @verify to i32 (i32, ...)*)(i32 %0) #3, !dbg !20
44 ; LOWERING: ![[SCOPE:[0-9]+]] = distinct !DISubprogram(name: "foo",
45 ; LOWERING: ![[LOC]] = !DILocation(line: 0, scope: ![[SCOPE]]
47 ; Function Attrs: nounwind readnone
48 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
50 declare i32 @lookup(...)
52 declare i32 @verify(...)
54 ; Function Attrs: nounwind readnone
55 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
57 attributes #0 = { nounwind ssp uwtable }
58 attributes #1 = { nounwind readnone }
59 attributes #3 = { nounwind }
62 !llvm.module.flags = !{!11, !12}
65 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
66 !1 = !DIFile(filename: "formal_parameter.c", directory: "")
68 !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !9)
69 !5 = !DIFile(filename: "formal_parameter.c", directory: "")
70 !6 = !DISubroutineType(types: !7)
72 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
74 !10 = !DILocalVariable(name: "map", line: 1, arg: 1, scope: !4, file: !5, type: !8)
75 !11 = !{i32 2, !"Dwarf Version", i32 2}
76 !12 = !{i32 1, !"Debug Info Version", i32 3}
77 !13 = !{!"clang version 3.5.0 "}
78 !14 = !DILocation(line: 1, scope: !4)
79 !15 = !{!16, !16, i64 0}
80 !16 = !{!"int", !17, i64 0}
81 !17 = !{!"omnipotent char", !18, i64 0}
82 !18 = !{!"Simple C/C++ TBAA"}
83 !19 = !DILocation(line: 3, scope: !4)
84 !20 = !DILocation(line: 4, scope: !21)
85 !21 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !4)
86 !22 = !DILocation(line: 5, scope: !4)