| ; DWARF linkage name attributes are optional; verify they are missing for |
| ; PS4 triple or when tuning for SCE. |
| |
| ; RUN: llc -O0 -mtriple=x86_64-unknown-unknown < %s | FileCheck %s -check-prefix LINKAGE1 |
| ; RUN: llc -O0 -mtriple=x86_64-unknown-unknown < %s | FileCheck %s -check-prefix LINKAGE2 |
| ; RUN: llc -O0 -mtriple=x86_64-scei-ps4 < %s | FileCheck %s -check-prefix NOLINKAGE |
| ; RUN: llc -O0 -mtriple=x86_64-unknown-unknown -debugger-tune=sce < %s | FileCheck %s -check-prefix NOLINKAGE |
| |
| ; $ clang++ -emit-llvm -S -g dwarf-linkage-names.cpp |
| ; namespace test { |
| ; int global_var; |
| ; int bar() { return global_var; } |
| ;}; |
| |
| ; With linkage names, we get an attribute for the declaration (first) entry |
| ; for the global variable, and one for the function. |
| |
| ; This assumes the variable will appear before the function. |
| ; LINKAGE1: .section .debug_info |
| ; LINKAGE1: DW_TAG_variable |
| ; LINKAGE1-NOT: DW_TAG |
| ; LINKAGE1: {{DW_AT_(MIPS_)?linkage_name}} |
| ; LINKAGE1: DW_TAG_subprogram |
| ; LINKAGE1-NOT: DW_TAG |
| ; LINKAGE1: {{DW_AT_(MIPS_)?linkage_name}} |
| ; LINKAGE1: .section |
| |
| ; Also verify we see the mangled names. We do this as a separate pass to |
| ; avoid depending on the order of .debug_info and .debug_str sections. |
| |
| ; LINKAGE2-DAG: .asciz "_ZN4test10global_varE" |
| ; LINKAGE2-DAG: .asciz "_ZN4test3barEv" |
| |
| ; Without linkage names, verify there aren't any linkage-name attributes, |
| ; and no mangled names. |
| |
| ; NOLINKAGE-NOT: {{DW_AT_(MIPS_)?linkage_name}} |
| ; NOLINKAGE-NOT: .asciz "_ZN4test10global_varE" |
| ; NOLINKAGE-NOT: .asciz "_ZN4test3barEv" |
| |
| source_filename = "test/DebugInfo/X86/dwarf-linkage-names.ll" |
| |
| @_ZN4test10global_varE = global i32 0, align 4, !dbg !0 |
| |
| ; Function Attrs: nounwind uwtable |
| define i32 @_ZN4test3barEv() #0 !dbg !11 { |
| entry: |
| %0 = load i32, ptr @_ZN4test10global_varE, align 4, !dbg !14 |
| ret i32 %0, !dbg !15 |
| } |
| |
| attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!5} |
| !llvm.module.flags = !{!8, !9} |
| !llvm.ident = !{!10} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "global_var", linkageName: "_ZN4test10global_varE", scope: !2, file: !3, line: 2, type: !4, isLocal: false, isDefinition: true) |
| !2 = !DINamespace(name: "test", scope: null) |
| !3 = !DIFile(filename: "dwarf-linkage-names.cpp", directory: "/home/probinson/projects/scratch") |
| !4 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.8.0 (trunk 244662)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !6, globals: !7) |
| !6 = !{} |
| !7 = !{!0} |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{!"clang version 3.8.0 (trunk 244662)"} |
| !11 = distinct !DISubprogram(name: "bar", linkageName: "_ZN4test3barEv", scope: !2, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !5, retainedNodes: !6) |
| !12 = !DISubroutineType(types: !13) |
| !13 = !{!4} |
| !14 = !DILocation(line: 3, column: 21, scope: !11) |
| !15 = !DILocation(line: 3, column: 14, scope: !11) |
| |