63efb28f47
Summary: This implements -thinlto-index-only, -thinlto-index-only:, and -thinlto-emit-imports-files options in lld-link. They are analogous to their counterparts in ld.lld: -thinlto-index-only causes us to perform ThinLTO's thin link and write index files, but not perform code generation. -thinlto-index-only: does the same, but also writes a text file listing the native object files expected to be generated. -thinlto-emit-imports-files creates a text file next to each index file, listing the files to import from. Reviewers: ruiu, tejohnson, pcc, rnk Subscribers: mehdi_amini, steven_wu, dexonsmith, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D64461 llvm-svn: 365800
53 lines
1.9 KiB
LLVM
53 lines
1.9 KiB
LLVM
; REQUIRES: x86
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; Basic ThinLTO tests.
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; RUN: opt -thinlto-bc %s -o %t1.obj
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; RUN: opt -thinlto-bc %p/Inputs/thinlto.ll -o %t2.obj
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; RUN: opt -thinlto-bc %p/Inputs/thinlto-empty.ll -o %t3.obj
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; Ensure lld generates an index and not a binary if requested.
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; RUN: rm -f %t4.exe
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; RUN: lld-link -thinlto-index-only -entry:main %t1.obj %t2.obj -out:%t4.exe
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; RUN: llvm-bcanalyzer -dump %t1.obj.thinlto.bc | FileCheck %s --check-prefix=BACKEND1
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; RUN: llvm-bcanalyzer -dump %t2.obj.thinlto.bc | FileCheck %s --check-prefix=BACKEND2
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; RUN: not test -e %t4.exe
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; The backend index for this module contains summaries from itself and
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; Inputs/thinlto.ll, as it imports from the latter.
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; BACKEND1: <MODULE_STRTAB_BLOCK
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.obj'
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; BACKEND1: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.obj'
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; BACKEND1-NOT: <ENTRY
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; BACKEND1: </MODULE_STRTAB_BLOCK
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; BACKEND1: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND1: <VERSION
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; BACKEND1: <FLAGS
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-5300342847281564238|-2624081020897602054}}
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-5300342847281564238|-2624081020897602054}}
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; BACKEND1: <COMBINED
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; BACKEND1: <COMBINED
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; BACKEND1: </GLOBALVAL_SUMMARY_BLOCK
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; The backend index for Input/thinlto.ll contains summaries from itself only,
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; as it does not import anything.
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; BACKEND2: <MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp2.obj'
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; BACKEND2-NOT: <ENTRY
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; BACKEND2: </MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND2-NEXT: <VERSION
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; BACKEND2-NEXT: <FLAGS
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; BACKEND2-NEXT: <VALUE_GUID op0=1 op1=-5300342847281564238
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; BACKEND2-NEXT: <COMBINED
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; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24215"
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declare void @g(...)
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define void @main() {
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call void (...) @g()
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ret void
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}
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