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This reverts commit a80608b8, reversing
changes made to 11761a79.

Change-Id: I543f04c150d21706aa073f67b9af165ae248b34c

This reverts commit 1229c11b.

Change-Id: Ie738e896582359db4a5acf27ba134cf29e14eb6d

The write_source_info got broken in the case when there is no
PATCHES.json file. Skipped listing patches if this file is missing.

Change-Id: If531120c9d8d2dbd4504a2ad0e08e3d1c1c39b3e

This merges the revision used in aosp toolchain r433403 into the
morelo/master branch.

Conflicts:
	android_version.py
	base_builders.py
	do_build.py
	paths.py
	source_manager.py
	trim_patch_data.py

Change-Id: If49ef4425d027ebc7565d94f02760a9c71dc07e5

Since c3112d89 ("Use git_llvm_rev.py to compute SVN revision"),
_get_llvm_remote_and_branch_info() inspects all remote branches to
find the "best match" upstream branch. This operation can take quite
a bit of time, and we can avoid it.

Indeed, if we are on a branch that has an upstream branch, then we
can simply use that branch. Otherwise, it is reasonable to fall back
to the remote branch configured in the repo manifest (accessible via
the "fake" `m` remote).

Another modification this change introduces is that we no longer
require the upstream branch to be behind (or equal to) HEAD. This is
not necessarily the case after a `git fetch` (for instance).
Instead, we simply count the number of commits on top of the
upstream branch, disregarding the number of commits we are behind.

Change-Id: I910ed71ae84cdd4f96819f41b5d01fa4d1a13769

This will exercise the ThinLTO code path, which enables better
optimisation and faster Android platform build speed.

Test: Time to link libart.so reduced from 57s to 51s on GCP
      n1-standard-96 VM.
Bug: 193243661
Change-Id: Ib22855867b6137b2b5d23e808fd99c154d9b242b

Test: manual
Change-Id: I41b54694c60a73f39def3c0b54dba52d02f19028

If LLVM_BINUTILS_INCDIR is not set, the plugin doesn't get built.  ld.gold
is no longer needed for Android platform and has been removed from the
NDK as well.

The immediate need is to ignore tests in
llvm-project/llvm/tools/test/gold, which require a newer gold.

Test: llvm-toolchain-testing:linux in Forrest
Change-Id: I609f689afe72fa69a1b0eb0af2b938d0eacdfd70

[UPSTREAM] [clang] Do not warn unused -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
[UPSTREAM] [clang] Don't generate warn-stack-size when the warning is ignored

Test: presubmit
Bug: 197490353
Bug: 197177755
Bug: 197230471
Change-Id: I29892f9dc4abcfc05710e3ca12015f71768dff7b

Bug: http://b/197645198

- This is only temporary for Darwin and debug builds and we should turn
them back on.
- We don't need tests on instrumented builds.

Test: presubmit
Change-Id: If035a955fc715ac482b28510b39126caf542dd71

Update the version after recent libxml update (aosp/1804004).

Change-Id: Ief2113d9c14edb0604cef157f83dbb321ea18a42
Test: presubmit

Bug: http://b/157914307

These are resolved by setting `#pragma STDC FENV_ACCESS ON` for x86_64 and
i686 (aosp/1804297).

Also remove XFAIL on tests that are now passing.

Test: Run bionic-unit-tests.math_h* with aosp/1804297
Change-Id: I159772f4a87f3c831685ea48aacc8a3206d0cff3

Bug: 197230471
Test: presubmit
Change-Id: Ic317698b1e548fd02c02f9c327bb6b01e6655028

* Default call stage2.test() unless --skip-tests or skip stage2.
  * Replace {no-}run-tests option with --skip-tests.
  * More clang/llvm tests could be added later.
* With --run-tests-stage1,
  * build clang-tools-extra in stage1,
  * do not set CLANG_ENABLE_STATIC_ANALYZER,
  * call stage1.test() unless --skip-tests.
* Mark expected failed tests:
  * Add Mark-XFAIL-tests.patch to label known failed tests.
  * Add cmake LLVM_INCLUDE_GO_TESTS=OFF.
* Quick test for stage1 clang/llvm/clang-tidy patches:
  ./build.py --run-tests-stage1 --skip=stage2 --skip-runtime --no-build=windows,lldb --skip-package

Change-Id: I33eb848a90b9e0c637356260d9e5c771ded9031b

Bug: http://b/197230471
Bug: http://b/193487656

0deedaa23f7 [hwasan] Prevent reordering of tag checks.
affb132ab89 hwasan: Move stack ring buffer initialization before InitStackAndTls.
6f85225ef37 StackLifetime: Remove asserts for multiple lifetime intrinsics.

Test: N/A
Change-Id: I627bd1e12f806c7a0253f75113a6f3fd630738da

Bug: 197230471
Test: presubmit
Change-Id: Id926f1edabc95cb41de9e88044e5775cedcef3e2

Upstream change r429854 modified the test files and requires manual
merge.

Test: build with TOT llvm
Bug: 197230471
Change-Id: I93da446b8754bfd54202592e0f8329c9a4ace413

Bug: http://b/196424004

d42be2d63cc Remove unused imports.

Test: N/A
Change-Id: I166b3fd726a16c564a8dbde5de943b1d09326bf2

For developer convenience, disable LTO by default and add a --lto option
to be used in build servers.

NB: LTO will be off in the official builds until we add `--lto` to the
build commands.

Test: run with and without --lto and verify default behavior.
Change-Id: I89e78492d3085203b463a2cd4b5e2fe111b5159f

* This will run clang-tidy and other tests.

Test: ./build.py --run-tests
Bug: None
Change-Id: Ic8e6dbd2aafe7d6c93e6f55ce7a740540c630521

Python is removed from gLinux.  These scripts are invoked using the
default python on build servers (e.g. python build.py) so the '#!' line
is a no-op there.

Test: presubmit
Change-Id: Ic76abddad6e887dfdfcfb6ce2db9ef8af66da2e3

Bug: 190099451
Test: none
Change-Id: I42c153b3f57f51a7b8859a8e543ecb8e4f8c41dd

49fabd9d76b [openmp] Do not use shared memory on Android

Also remove the now-obsolete local revert.

Test: N/A
Change-Id: I6d09dabfee7944bb55f934347f19a6a23891e56c

16ebb7ab5c4 [llvm-objcopy] [COFF] Do not patch debug entries if PointerToRawData is zero

Also remove the now-obsolete local revert.

Test: N/A
Change-Id: I8a8014fbbb1a70631f6a173bd6a489d4bc07198e

* changes:
  [patches] Cherry pick CLs from upstream
  [patches] Cherry pick CLs from upstream

Bug: http://b/190072888

50b62731452 [MBP] findBestLoopTopHelper should exit if OldTop is not a chain header

Test: N/A
Change-Id: Ib6608e653115739091b06047c3e21622677dbff8

Bug: http://b/194398177

0ebb7560875 [hwasan] Add __hwasan_init constructor to runtime lib.

Test: N/A
Change-Id: If6729826b5531e239514a99481ed31aac7888142

These are no longer needed.  Upstream now uses "associated metadata" to
link coverage metadata with the corresponding functions.  This allows
the linker `--gc-sections` flag to drop the metadata if the
corresponding functions get discarded.

Test: Build coverage targets
Change-Id: I0c1fe1f57f272107167276d0b72dde3f60a19a23

Has three more failing tests:

Failed Tests (3):
  LLVM :: Bindings/Go/go.test
  LLVM :: CodeGen/X86/extractelement-fp.ll
  LLVM :: CodeGen/X86/fp-round.ll

Testing Time: 50.51s
  Unsupported      : 12256
  Passed           : 31561
  Expectedly Failed:    65
  Failed           :     3

Test: ./build.py --run-tests
Bug: None
Change-Id: Ib44f2ce9202f8554da9573041f1d739a2ebd647f

These don't currently pass, but that seems to be unrelated to the
infrastructure here.

Failed Tests (3):
  Clang :: CodeGenCXX/builtins.cpp
  Clang :: CodeGenCXX/unknown-anytype.cpp
  Clang :: Sema/builtin-setjmp.c

Testing Time: 47.72s
  Skipped          :     3
  Unsupported      :   740
  Passed           : 27237
  Expectedly Failed:    26
  Failed           :     3

Test:
Bug:
Change-Id: I214b383abb8daba14ac9ed997e865d8f946823b3

This code assumes that the argument to `--bug` is always a numeric id
from buganizer. Sometimes we want to reference a different issue
tracker, so make it handle non-buganizer links appropriately.

Test: N/A
Change-Id: I2f3e8b8fd28fb98ace02532d6adf092a823ed1cc

Test: None
Bug: None
Change-Id: I98869703be6c07493d7eab69ad80e3d22d2c2fb4