1 ; RUN: opt -deadargelim -S < %s | FileCheck %s
4 ; Built with clang (then manually running -mem2reg with opt) from the following source:
5 ; static void f1(int, ...) {
12 ; Test both varargs removal and removal of a traditional dead arg together, to
13 ; test both the basic functionality, and a particular wrinkle involving updating
14 ; the function->debug info mapping on update to ensure it's accurate when used
15 ; again for the next removal.
17 ; CHECK: define internal void @_ZL2f1iz({{.*}} !dbg [[SP:![0-9]+]]
18 ; CHECK: [[SP]] = distinct !DISubprogram(name: "f1"
20 ; Check that debug info metadata for subprograms stores pointers to
21 ; updated LLVM functions.
23 ; Function Attrs: uwtable
24 define void @_Z2f2v() #0 !dbg !4 {
26 call void (i32, ...) @_ZL2f1iz(i32 1), !dbg !15
30 ; Function Attrs: nounwind uwtable
31 define internal void @_ZL2f1iz(i32, ...) #1 !dbg !8 {
33 call void @llvm.dbg.value(metadata i32 %0, metadata !17, metadata !18), !dbg !19
37 ; Function Attrs: nounwind readnone
38 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
40 ; Function Attrs: nounwind readnone
41 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
43 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
44 attributes #1 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
45 attributes #2 = { nounwind readnone }
48 !llvm.module.flags = !{!12, !13}
51 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
52 !1 = !DIFile(filename: "dbg.cpp", directory: "/tmp/dbginfo")
54 !4 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", line: 4, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: !5, type: !6, retainedNodes: !2)
55 !5 = !DIFile(filename: "dbg.cpp", directory: "/tmp/dbginfo")
56 !6 = !DISubroutineType(types: !7)
58 !8 = distinct !DISubprogram(name: "f1", linkageName: "_ZL2f1iz", line: 1, isLocal: true, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !9, retainedNodes: !2)
59 !9 = !DISubroutineType(types: !10)
60 !10 = !{null, !11, null}
61 !11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
62 !12 = !{i32 2, !"Dwarf Version", i32 4}
63 !13 = !{i32 2, !"Debug Info Version", i32 3}
64 !14 = !{!"clang version 3.6.0 "}
65 !15 = !DILocation(line: 5, column: 3, scope: !4)
66 !16 = !DILocation(line: 6, column: 1, scope: !4)
67 !17 = !DILocalVariable(name: "", line: 1, arg: 1, scope: !8, file: !5, type: !11)
69 !19 = !DILocation(line: 1, column: 19, scope: !8)
70 !20 = !DILocation(line: 2, column: 1, scope: !8)