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117 lines
4.5 KiB
Plaintext
117 lines
4.5 KiB
Plaintext
;; Basic FatLTO tests.
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; REQUIRES: x86
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; RUN: rm -rf %t && split-file %s %t && cd %t
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;; Ensure that input files contain .llvm.lto section.
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; RUN: llc a-LTO.ll --filetype=obj -o a-fatLTO.o --relocation-model=pic
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; RUN: opt < a-LTO.ll --module-summary -o a-fatLTO.bc
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; RUN: llvm-objcopy --add-section=.llvm.lto=a-fatLTO.bc --set-section-flags=.llvm.lto=exclude --set-section-type=.llvm.lto=0x6fff4c0c a-fatLTO.o
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; RUN: llc main-LTO.ll --filetype=obj -o main-fatLTO.o --relocation-model=pic
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; RUN: opt < main-LTO.ll --module-summary -o main-fatLTO.bc
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; RUN: llvm-objcopy --add-section=.llvm.lto=main-fatLTO.bc --set-section-flags=.llvm.lto=exclude --set-section-type=.llvm.lto=0x6fff4c0c main-fatLTO.o
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; RUN: llvm-readelf -S a-fatLTO.o | FileCheck --check-prefix=HAS_LLVM_LTO %s
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; RUN: llvm-readelf -S main-fatLTO.o | FileCheck --check-prefix=HAS_LLVM_LTO %s
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;; Make sure that the section flags are set correctly
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; HAS_LLVM_LTO: Name Type Address Off Size ES Flg Lk Inf Al
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; HAS_LLVM_LTO: .llvm.lto LLVM_LTO {{.*}} 00 WE 0 0 1
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;; Final executable should not have .llvm.lto section no matter what the target is.
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; RUN: ld.lld -o foo-fatLTO a-fatLTO.o main-fatLTO.o --fat-lto-objects
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; RUN: llvm-readelf -S foo-fatLTO | FileCheck --check-prefix=CHECK-LTO-TARGET %s
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;; Check that fat objects work w/ --start-lib.
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; RUN: ld.lld -o foo-fatLTO.start_lib --start-lib a-fatLTO.o main-fatLTO.o --fat-lto-objects
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; RUN: llvm-readelf -S foo-fatLTO.start_lib | FileCheck --check-prefix=CHECK-LTO-TARGET %s
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;; Check if .llvm.lto section gets aggregated in LTO target.
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; CHECK-LTO-TARGET: Name Type Address Off Size ES Flg Lk Inf Al
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; CHECK-LTO-TARGET-NOT: .llvm.lto
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;; Final executable should not have .llvm.lto section no matter what the target is.
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; RUN: ld.lld -o foo-fatNoLTO a-fatLTO.o %/t/main-fatLTO.o
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; RUN: llvm-readelf -S foo-fatNoLTO | FileCheck --check-prefix=CHECK-NON-LTO-TARGET %s
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;; Check if .llvm.lto section gets aggregated in non-LTO target.
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; CHECK-NON-LTO-TARGET: Name Type Address Off Size ES Flg Lk Inf Al
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; CHECK-NON-LTO-TARGET-NOT: .llvm.lto
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;; Check if the LTO target executable produced from FatLTO object file is
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;; identical to the one produced from LTO modules.
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; RUN: opt < a-LTO.ll --module-summary -o a-LTO.bc
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; RUN: opt < main-LTO.ll --module-summary -o main-LTO.bc
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; RUN: ld.lld -o foo-LTO a-LTO.bc main-LTO.bc
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; RUN: cmp foo-fatLTO foo-LTO
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;; Check if the no-LTO target executable produced from FatLTO object file is
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;; identical to the one produced from regular object files.
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; RUN: llc a-LTO.ll --filetype=obj -o a.o
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; RUN: llc main-LTO.ll --filetype=obj -o main.o
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; RUN: ld.lld -o foo-noLTO a.o main.o
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; RUN: cmp foo-fatNoLTO foo-noLTO
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;; Check archive support.
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; RUN: llvm-ar rcs a.a a-fatLTO.o
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; RUN: ld.lld -o foo-fatLTO.archive a.a main-LTO.bc --fat-lto-objects
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; RUN: cmp foo-fatLTO.archive foo-LTO
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;; Test FatLTO works with relocatable links using PIC objects, and that
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;; SHT_LLVM_LTO sections are discarded.
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; RUN: llvm-ar rcs fatLTO-pic.a a-fatLTO.o main-fatLTO.o
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; RUN: llvm-readelf -S fatLTO-pic.a | FileCheck --check-prefix=HAS_LLVM_LTO %s
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; RUN: ld.lld --whole-archive fatLTO-pic.a -r -o fatLTO-pic-relocatable.o
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; RUN: llvm-readelf -S fatLTO-pic-relocatable.o | FileCheck --check-prefix=CHECK-NON-LTO-TARGET %s
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;--- a-LTO.ll
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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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; Function Attrs: noinline nounwind uwtable
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define dso_local i32 @_start() #0 {
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entry:
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ret i32 0
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}
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attributes #0 = { noinline nounwind uwtable }
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!llvm.module.flags = !{!0, !1, !2, !3, !4, !5, !6}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{i32 7, !"PIE Level", i32 2}
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!3 = !{i32 7, !"uwtable", i32 2}
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!4 = !{i32 7, !"frame-pointer", i32 2}
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!5 = !{i32 1, !"ThinLTO", i32 0}
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!6 = !{i32 1, !"EnableSplitLTOUnit", i32 1}
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;--- main-LTO.ll
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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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; Function Attrs: noinline nounwind uwtable
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define dso_local i32 @main() #0 {
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entry:
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%retval = alloca i32, align 4
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store i32 0, ptr %retval, align 4
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%call = call i32 (...) @_start()
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ret i32 %call
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}
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declare i32 @_start(...)
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attributes #0 = { noinline nounwind uwtable }
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!llvm.module.flags = !{!0, !1, !2, !3, !4, !5, !6}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{i32 7, !"PIE Level", i32 2}
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!3 = !{i32 7, !"uwtable", i32 2}
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!4 = !{i32 7, !"frame-pointer", i32 2}
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!5 = !{i32 1, !"ThinLTO", i32 0}
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!6 = !{i32 1, !"EnableSplitLTOUnit", i32 1}
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