1 ; RUN: opt -deadargelim -S < %s | FileCheck %s 2 ; PR14016 3 4 ; Built with clang (then manually running -mem2reg with opt) from the following source: 5 ; static void f1(int, ...) { 6 ; } 7 ; 8 ; void f2() { 9 ; f1(1); 10 ; } 11 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. 16 17 ; CHECK: define internal void @_ZL2f1iz({{.*}} !dbg [[SP:![0-9]+]] 18 ; CHECK: [[SP]] = distinct !DISubprogram(name: "f1" 19 20 ; Check that debug info metadata for subprograms stores pointers to 21 ; updated LLVM functions. 22 23 ; Function Attrs: uwtable 24 define void @_Z2f2v() #0 !dbg !4 { 25 entry: 26 call void (i32, ...) @_ZL2f1iz(i32 1), !dbg !15 27 ret void, !dbg !16 28 } 29 30 ; Function Attrs: nounwind uwtable 31 define internal void @_ZL2f1iz(i32, ...) #1 !dbg !8 { 32 entry: 33 call void @llvm.dbg.value(metadata i32 %0, i64 0, metadata !17, metadata !18), !dbg !19 34 ret void, !dbg !20 35 } 36 37 ; Function Attrs: nounwind readnone 38 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 39 40 ; Function Attrs: nounwind readnone 41 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2 42 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 } 46 47 !llvm.dbg.cu = !{!0} 48 !llvm.module.flags = !{!12, !13} 49 !llvm.ident = !{!14} 50 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") 53 !2 = !{} 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, variables: !2) 55 !5 = !DIFile(filename: "dbg.cpp", directory: "/tmp/dbginfo") 56 !6 = !DISubroutineType(types: !7) 57 !7 = !{null} 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, variables: !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) 68 !18 = !DIExpression() 69 !19 = !DILocation(line: 1, column: 19, scope: !8) 70 !20 = !DILocation(line: 2, column: 1, scope: !8) 71
