llvm/utils
Philip Reames 78cc6fcb01 [Statepoints 2/4] Statepoint infrastructure for garbage collection: MI & x86-64 Backend
This is the second patch in a small series.  This patch contains the MachineInstruction and x86-64 backend pieces required to lower Statepoints.  It does not include the code to actually generate the STATEPOINT machine instruction and as a result, the entire patch is currently dead code.  I will be submitting the SelectionDAG parts within the next 24-48 hours.  Since those pieces are by far the most complicated, I wanted to minimize the size of that patch.  That patch will include the tests which exercise the functionality in this patch.  The entire series can be seen as one combined whole in http://reviews.llvm.org/D5683.

The STATEPOINT psuedo node is generated after all gc values are explicitly spilled to stack slots.  The purpose of this node is to wrap an actual call instruction while recording the spill locations of the meta arguments used for garbage collection and other purposes.  The STATEPOINT is modeled as modifing all of those locations to prevent backend optimizations from forwarding the value from before the STATEPOINT to after the STATEPOINT.  (Doing so would break relocation semantics for collectors which wish to relocate roots.)

The implementation of STATEPOINT is closely modeled on PATCHPOINT.  Eventually, much of the code in this patch will be removed.  The long term plan is to merge the functionality provided by statepoints and patchpoints.  Merging their implementations in the backend is likely to be a good starting point.

Reviewed by: atrick, ributzka



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223085 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-01 22:52:56 +00:00
..
bugpoint
buildit ARM64: initial backend import 2014-03-29 10:18:08 +00:00
count Install three utils, "FileCheck", "count", and "not", for now to appease llvmlab dragonegg builder. 2013-12-20 06:25:37 +00:00
crosstool
emacs IR: Implement uselistorder assembly directives 2014-08-19 21:30:15 +00:00
FileCheck Make StringSet::insert return pair<iterator, bool> like other self-associative containers 2014-11-19 02:56:00 +00:00
fpcmp Don't use PathV1.h in FileUtilities.h. 2013-06-13 20:41:00 +00:00
git [utils] Update find-rev utility to take a branch argument (name of the git-svn 2013-01-17 18:57:21 +00:00
git-svn Update git-svnrevert to accept git and svn revisions 2014-10-08 09:32:47 +00:00
jedit
kate Remove the linker_private and linker_private_weak linkages. 2014-03-13 23:18:37 +00:00
KillTheDoctor Remove broken include. 2014-06-13 15:21:50 +00:00
lint
lit Handle ASAN_OPTIONS and UBSAN_OPTIONS in TestingConfig.py 2014-11-03 23:04:56 +00:00
llvm-build Teach llvm-build to avoid touching LibraryDependencies.inc unless the contents 2014-11-19 03:34:20 +00:00
llvm-lit [testing]: lld generally lives in tools/, so fix llvm-lit. 2014-07-07 15:26:53 +00:00
Misc Patch that forces MergeFunctions pass for clang. 2013-09-24 20:06:31 +00:00
not Add a small "usage:" comment at the top of not.cpp 2014-11-26 22:53:46 +00:00
PerfectShuffle [C++11] Use 'nullptr'. 2014-06-08 22:29:17 +00:00
release Use 'xz' compression instead of 'gz'. 2014-08-26 08:11:22 +00:00
TableGen [Statepoints 2/4] Statepoint infrastructure for garbage collection: MI & x86-64 Backend 2014-12-01 22:52:56 +00:00
Target/ARM
testgen [MC] bundle alignment: prevent padding instructions from crossing bundle boundaries 2013-01-31 17:00:03 +00:00
textmate Add highlighting for "int" keyword 2013-01-08 16:23:02 +00:00
unittest Reverted r203879. 2014-03-14 01:56:55 +00:00
valgrind valgrind/x86_64-pc-linux-gnu.supp: Suppress also /bin/bash. 2014-09-24 04:38:20 +00:00
vim IR: Implement uselistorder assembly directives 2014-08-19 21:30:15 +00:00
yaml-bench Remove some calls to std::move. 2014-08-01 14:31:55 +00:00
bisect Add a small utility called bisect that enables commandline bisecting on a counter. 2014-08-02 01:39:08 +00:00
check-each-file
clang-parse-diagnostics-file [utils] Tweak utils/clang-parse-diagnostics-file to ignore autoconf diagnostics. 2012-12-22 00:47:06 +00:00
codegen-diff
countloc.sh
DSAclean.py
DSAextract.py Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 2012-09-27 10:14:43 +00:00
findmisopt Delete -std-compile-opts. 2014-10-16 20:00:02 +00:00
findoptdiff
findsym.pl
GenLibDeps.pl Rename VMCore directory to IR. 2013-01-02 09:10:48 +00:00
GetRepositoryPath Fix the build for git repositories with multiple remotes. 2013-09-16 09:25:49 +00:00
GetSourceVersion [utils] Fix Get{RepositoryPath,SourceVersion} to have a more robust is-git-svn 2012-05-15 18:44:09 +00:00
getsrcs.sh
lldbDataFormatters.py utils: Teach lldbDataFormatters how to format ArrayRefs 2014-09-11 01:47:38 +00:00
llvm-compilers-check Remove bogus configure check 2014-06-19 19:31:11 +00:00
llvm-native-gxx
llvm.grm Remove the linker_private and linker_private_weak linkages. 2014-03-13 23:18:37 +00:00
llvm.natvis Use correct memeber when displaying StringMap's size. 2014-07-09 05:34:24 +00:00
LLVMBuild.txt
llvmdo
llvmgrep
Makefile Delete utils/FileUpdate. 2014-06-23 17:58:39 +00:00
makellvm
shuffle_fuzz.py [shuffle] Teach the shufflevector fuzzer to support fixed element types. 2014-08-17 00:40:31 +00:00
sort_includes.py Teach sort_includes.py to drop duplicated includes. 2012-12-21 18:00:08 +00:00
test_debuginfo.pl test_debuginfo.pl: Make failures easier to debug by printing the debugger 2014-02-20 19:55:44 +00:00
UpdateCMakeLists.pl Generalize matching of add_executable to add_XXX_executable. 2012-11-22 07:48:52 +00:00
wciia.py Fix known typos 2014-01-24 17:20:08 +00:00