forked from OSchip/llvm-project
69 lines
3.5 KiB
LLVM
69 lines
3.5 KiB
LLVM
; Check that call site entries are emitted correctly when using split-dwarf
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; together with some form of LTO.
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; Original C source:
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;
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; // cu1.c
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; extern void callee(void);
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; void caller(void) {
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; callee();
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; }
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;
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; // cu2.c
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; __attribute__((optnone)) void callee(void) {}
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;
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; Steps to reproduce:
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;
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; (The -O1 here is needed to trigger call site entry emission, as these tags are
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; generally not emitted at -O0.)
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;
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; clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=split -O1 ~/tmp/cu1.c -S -emit-llvm -o ~/tmp/cu1.ll
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; clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=split -O1 ~/tmp/cu2.c -S -emit-llvm -o ~/tmp/cu2.ll
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; llvm-link -o ~/tmp/cu-merged.bc ~/tmp/cu1.ll ~/tmp/cu2.ll
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; llc -split-dwarf-file=foo.dwo -O0 -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o - ~/tmp/cu-merged.bc
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; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; CHECK: DW_TAG_GNU_call_site
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; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "callee"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define dso_local void @caller() local_unnamed_addr !dbg !14 {
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entry:
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call void @callee(), !dbg !15
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ret void, !dbg !16
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}
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define dso_local void @callee() local_unnamed_addr noinline optnone !dbg !17 {
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entry:
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ret void, !dbg !19
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}
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!llvm.dbg.cu = !{!0, !8}
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!llvm.ident = !{!10, !10}
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!llvm.module.flags = !{!11, !12, !13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (git@github.com:llvm/llvm-project.git 170f4b972e7bcf1f2af98bdd7145954efd16e038)", isOptimized: true, runtimeVersion: 0, splitDebugFilename: "cu1.dwo", emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: GNU)
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!1 = !DIFile(filename: "/Users/vsk/tmp/cu1.c", directory: "/Users/vsk/src/builds/llvm-project-master-RA")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "callee", scope: !5, file: !5, line: 1, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !DIFile(filename: "tmp/cu1.c", directory: "/Users/vsk")
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!6 = !DISubroutineType(types: !7)
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!7 = !{null}
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!8 = distinct !DICompileUnit(language: DW_LANG_C99, file: !9, producer: "clang version 11.0.0 (git@github.com:llvm/llvm-project.git 170f4b972e7bcf1f2af98bdd7145954efd16e038)", isOptimized: true, runtimeVersion: 0, splitDebugFilename: "cu2.dwo", emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: GNU)
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!9 = !DIFile(filename: "/Users/vsk/tmp/cu2.c", directory: "/Users/vsk/src/builds/llvm-project-master-RA")
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!10 = !{!"clang version 11.0.0 (git@github.com:llvm/llvm-project.git 170f4b972e7bcf1f2af98bdd7145954efd16e038)"}
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!11 = !{i32 7, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{i32 1, !"wchar_size", i32 4}
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!14 = distinct !DISubprogram(name: "caller", scope: !5, file: !5, line: 2, type: !6, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!15 = !DILocation(line: 3, column: 3, scope: !14)
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!16 = !DILocation(line: 4, column: 1, scope: !14)
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!17 = distinct !DISubprogram(name: "callee", scope: !18, file: !18, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !8, retainedNodes: !2)
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!18 = !DIFile(filename: "tmp/cu2.c", directory: "/Users/vsk")
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!19 = !DILocation(line: 1, column: 45, scope: !17)
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