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a2f6e4d840
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
47 lines
1.8 KiB
LLVM
47 lines
1.8 KiB
LLVM
; Test that llvm-lto2 handles the -lto-sample-profile-file option and pass
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; down to the ICP correctly.
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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,test,px -r %t.bc,bar,x \
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; RUN: -lto-sample-profile-file=%S/Inputs/load-sample-prof-icp.prof
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; RUN: llvm-dis %t.out.1.4.opt.bc -o - | FileCheck %s
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; RUN: llvm-lto2 run -o %t.out %t.bc -save-temps \
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; RUN: -r %t.bc,test,px -r %t.bc,bar,x -use-new-pm \
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; RUN: -lto-sample-profile-file=%S/Inputs/load-sample-prof-icp.prof
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; RUN: llvm-dis %t.out.1.4.opt.bc -o - | FileCheck %s
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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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; CHECK-LABEL: @test
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; Checks that the call instruction is promoted to direct call and has
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; profile count annotated on the direct call.
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define void @test(void ()*) !dbg !7 {
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%2 = alloca void ()*
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store void ()* %0, void ()** %2
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%3 = load void ()*, void ()** %2
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; CHECK: call void @bar(),{{.*}}!prof
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call void %3(), !dbg !10
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ret void
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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: "test", 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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