| ; RUN: opt -passes=deadargelim -S < %s | FileCheck %s |
| ;test.c |
| ;int s; |
| ; |
| ;void f2(int k) __attribute__((noinline)) { |
| ; s++; |
| ; k = s; |
| ;} |
| ; |
| ;void f() __attribute__((noinline)) { |
| ; f2(4); |
| ;} |
| ; |
| ;int main() |
| ;{ |
| ; f(); |
| ; return 0; |
| ;} |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| @s = common dso_local local_unnamed_addr global i32 0, align 4, !dbg !0 |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local void @f2(i32 %k) local_unnamed_addr !dbg !11 { |
| entry: |
| ; CHECK: call void @llvm.dbg.value(metadata i32 poison, metadata !15, metadata !DIExpression()), !dbg !16 |
| call void @llvm.dbg.value(metadata i32 %k, metadata !15, metadata !DIExpression()), !dbg !16 |
| %0 = load i32, ptr @s, align 4, !dbg !17 |
| %inc = add nsw i32 %0, 1, !dbg !17 |
| store i32 %inc, ptr @s, align 4, !dbg !17 |
| call void @llvm.dbg.value(metadata ptr @s, metadata !15, metadata !DIExpression(DW_OP_deref)), !dbg !16 |
| ret void, !dbg !18 |
| } |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local void @f() local_unnamed_addr !dbg !19 { |
| entry: |
| ; CHECK: tail call void @f2(i32 poison), !dbg !22 |
| tail call void @f2(i32 4), !dbg !22 |
| ret void, !dbg !23 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define dso_local i32 @main() local_unnamed_addr !dbg !24 { |
| entry: |
| tail call void @f(), !dbg !27 |
| ret i32 0, !dbg !28 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!7, !8, !9} |
| !llvm.ident = !{!10} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "test.c", directory: "/dir") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !7 = !{i32 2, !"Dwarf Version", i32 4} |
| !8 = !{i32 2, !"Debug Info Version", i32 3} |
| !9 = !{i32 1, !"wchar_size", i32 4} |
| !10 = !{!"clang version 7.0.0"} |
| !11 = distinct !DISubprogram(name: "f2", scope: !3, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !14) |
| !12 = !DISubroutineType(types: !13) |
| !13 = !{null, !6} |
| !14 = !{!15} |
| !15 = !DILocalVariable(name: "k", arg: 1, scope: !11, file: !3, line: 3, type: !6) |
| !16 = !DILocation(line: 3, column: 13, scope: !11) |
| !17 = !DILocation(line: 4, column: 3, scope: !11) |
| !18 = !DILocation(line: 6, column: 1, scope: !11) |
| !19 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 8, type: !20, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !2, retainedNodes: !4) |
| !20 = !DISubroutineType(types: !21) |
| !21 = !{null} |
| !22 = !DILocation(line: 9, column: 2, scope: !19) |
| !23 = !DILocation(line: 10, column: 1, scope: !19) |
| !24 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 12, type: !25, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: true, unit: !2, retainedNodes: !4) |
| !25 = !DISubroutineType(types: !26) |
| !26 = !{!6} |
| !27 = !DILocation(line: 13, column: 2, scope: !24) |
| !28 = !DILocation(line: 14, column: 2, scope: !24) |