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llvm-mirror/test/ThinLTO/X86/prefix_replace.ll
Steven Wu 4fc1c31a27 [ThinLTO] Fix ThinLTOCodegenerator to export llvm.used symbols
Summary:
Reapply r357931 with fixes to ThinLTO testcases and llvm-lto tool.

ThinLTOCodeGenerator currently does not preserve llvm.used symbols and
it can internalize them. In order to pass the necessary information to the
legacy ThinLTOCodeGenerator, the input to the code generator is
rewritten to be based on lto::InputFile.

Now ThinLTO using the legacy LTO API will requires data layout in
Module.

"internalize" thinlto action in llvm-lto is updated to run both
"promote" and "internalize" with the same configuration as
ThinLTOCodeGenerator. The old "promote" + "internalize" option does not
produce the same output as ThinLTOCodeGenerator.

This fixes: PR41236
rdar://problem/49293439

Reviewers: tejohnson, pcc, kromanova, dexonsmith

Reviewed By: tejohnson

Subscribers: ormris, bd1976llvm, mehdi_amini, inglorion, eraman, hiraditya, jkorous, dexonsmith, arphaman, dang, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60421

llvm-svn: 358601
2019-04-17 17:38:09 +00:00

19 lines
778 B
LLVM

; Check that changing the output path via prefix-replace works
; Use of '/' in paths created here make this unsuitable for Windows.
; RUN: mkdir -p %t/oldpath
; RUN: opt -module-summary %s -o %t/oldpath/prefix_replace.o
; Ensure that there is no existing file at the new path, so we properly
; test the creation of the new file there.
; RUN: rm -f %t/newpath/prefix_replace.o.thinlto.bc
; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t/oldpath/prefix_replace.o
; RUN: llvm-lto -thinlto-action=distributedindexes -thinlto-prefix-replace="%t/oldpath/;%t/newpath/" -thinlto-index %t.index.bc %t/oldpath/prefix_replace.o
; RUN: ls %t/newpath/prefix_replace.o.thinlto.bc
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @f() {
entry:
ret void
}