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4 Commits

Author SHA1 Message Date
Steven Wu
f8c4f81342 [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358601 91177308-0d34-0410-b5e6-96231b3b80d8
 2019-04-17 17:38:09 +00:00
Mehdi Amini
d2f4701e4a Add a module Hash in the bitcode and the combined index, implementing a kind of "build-id" 
This is intended to be used for ThinLTO incremental build.

Differential Revision: http://reviews.llvm.org/D18213

This is a recommit of r265095 after fixing the Windows issues.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265111 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-01 05:33:11 +00:00
Mehdi Amini
1fc660ff51 Revert "Add support for computing SHA1 in LLVM" 
This reverts commit r265096, r265095, and r265094.
Windows build is broken, and the validation does not pass.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265102 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-01 03:03:21 +00:00
Mehdi Amini
433ac20b17 Add missing test for the "Module hash in bitcode" added in r265095 
From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265096 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-01 01:37:52 +00:00