a5376f393e
Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; Test that llvm-lto2 handles the -lto-sample-profile-file option
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;
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; RUN: opt -module-summary < %s -o %t.bc
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; RUN: llvm-lto2 run -o %t.out %t.bc -save-temps \
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; RUN: -r %t.bc,foo,px -r %t.bc,bar,x \
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; RUN: -lto-sample-profile-file=%S/Inputs/load-sample-prof.prof
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; RUN: llvm-dis %t.out.1.4.opt.bc -o - | FileCheck %s
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;
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; CHECK: !prof
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target datalayout = "e-m:e-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 void @foo() local_unnamed_addr !dbg !7 {
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entry:
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tail call void @bar(), !dbg !10
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ret void, !dbg !11
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}
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declare void @bar() local_unnamed_addr
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 6.0.0 "}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, variables: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !DILocation(line: 4, column: 5, scope: !7)
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!11 = !DILocation(line: 5, column: 1, scope: !7)
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