| ; RUN: opt -passes=deadargelim -S < %s | FileCheck %s |
| ; PR14016 |
| |
| ; Built with clang (then manually running -passes=mem2reg with opt) from the following source: |
| ; static void f1(int, ...) { |
| ; } |
| ; |
| ; void f2() { |
| ; f1(1); |
| ; } |
| |
| ; Test both varargs removal and removal of a traditional dead arg together, to |
| ; test both the basic functionality, and a particular wrinkle involving updating |
| ; the function->debug info mapping on update to ensure it's accurate when used |
| ; again for the next removal. |
| |
| ; CHECK: define internal void @_ZL2f1iz({{.*}} !dbg [[SP:![0-9]+]] |
| ; CHECK: [[SP]] = distinct !DISubprogram(name: "f1" |
| |
| ; Check that debug info metadata for subprograms stores pointers to |
| ; updated LLVM functions. |
| |
| ; Function Attrs: uwtable |
| define void @_Z2f2v() #0 !dbg !4 { |
| entry: |
| call void (i32, ...) @_ZL2f1iz(i32 1), !dbg !15 |
| ret void, !dbg !16 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define internal void @_ZL2f1iz(i32, ...) #1 !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %0, metadata !17, metadata !18), !dbg !19 |
| ret void, !dbg !20 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #2 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!12, !13} |
| !llvm.ident = !{!14} |
| |
| !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) |
| !1 = !DIFile(filename: "dbg.cpp", directory: "/tmp/dbginfo") |
| !2 = !{} |
| !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) |
| !5 = !DIFile(filename: "dbg.cpp", directory: "/tmp/dbginfo") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null} |
| !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) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11, null} |
| !11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !12 = !{i32 2, !"Dwarf Version", i32 4} |
| !13 = !{i32 2, !"Debug Info Version", i32 3} |
| !14 = !{!"clang version 3.6.0 "} |
| !15 = !DILocation(line: 5, column: 3, scope: !4) |
| !16 = !DILocation(line: 6, column: 1, scope: !4) |
| !17 = !DILocalVariable(name: "", line: 1, arg: 1, scope: !8, file: !5, type: !11) |
| !18 = !DIExpression() |
| !19 = !DILocation(line: 1, column: 19, scope: !8) |
| !20 = !DILocation(line: 2, column: 1, scope: !8) |