Summary:
When copying aggregate registers within the same register class, there may
be an overlap between source and destination that forces us to do the copy
backwards.
Do the simplest possible thing that guarantees the correct order of moves
when there are overlaps, and does whatever when there is no overlap. (The
last part forces some trivial adjustments to test cases.)
Together with r255906, this fixes a VM fault in Unreal Elemental Demo.
While at it, change the generation of kill and def flags to something that
looks more reasonable. This method is used very late during compilation, so
it probably doesn't matter in practice, and to be honest, I don't know if
this change is actually correct because the semantics in connection with
aggregate registers vs. sub-registers are not clear to me.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93264
Reviewers: arsenm, tstellarAMD
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15622
llvm-svn: 256072
I don't have any way to test MSVC compilation, but maybe this will fix
the error:
llvm/Support/TrailingObjects.h(286) : error C3210: 'TrailingObjectsBase' : access declaration can only be applied to a base class member
llvm/Support/TrailingObjects.h(337) : see reference to class template instantiation 'llvm::TrailingObjects<BaseTy,TrailingTys...>' being compiled
llvm/Support/TrailingObjects.h(286) : error C2602: 'llvm::trailing_objects_internal::TrailingObjectsBase::OverloadToken' is not a member of a base class of 'llvm::TrailingObjects<BaseTy,TrailingTys...>'
llvm/Support/TrailingObjects.h(91) : see declaration of 'llvm::trailing_objects_internal::TrailingObjectsBase::OverloadToken'
llvm-svn: 256068
This deprecates:
* LLVMParseBitcode
* LLVMParseBitcodeInContext
* LLVMGetBitcodeModuleInContext
* LLVMGetBitcodeModule
They are replaced with the functions with a 2 suffix which do not record
a diagnostic.
llvm-svn: 256065
Remove all checks that required main thread to run faster than tasks in
ThreadPool, and yields which are now unnecessary. This should fix some
bot failures.
llvm-svn: 256056
- Automatic alignment of the base type for the alignment requirements
of the trailing types.
- Support for an arbitrary numbers of trailing types, instead of only
1 or 2, by using a variadic template implementation.
Upcoming commits to clang will take advantage of both of these features.
Differential Revision: http://reviews.llvm.org/D12439
llvm-svn: 256054
This code changes the way Symbolize handles parsed binaries: now
parsed OwningBinary<Binary> is not broken into (binary, memory buffer)
pair, and is just stored as-is in a cache. ObjectFile components
of Mach-O universal binaries are also stored explicitly in a
separate cache.
Additionally, this change:
* simplifies the code that parses/caches binaries: it's now done
in a single place, not three different functions.
* makes flush() method behave as expected, and actually clear
the cached parsed binaries and objects.
* fixes a dangling pointer issue described in
http://reviews.llvm.org/D15638
llvm-svn: 256041
This patch removes all getEdgeWeight() interfaces from CodeGen directory. As
getEdgeProbability() is a little more expensive than getEdgeWeight(), I will
compose a patch soon in which BPI only stores probabilities instead of edge
weights so that getEdgeProbability() will have O(1) time.
Differential revision: http://reviews.llvm.org/D15489
llvm-svn: 256039
Summary:
If Candiadte may have a different type from GEP, we should bitcast or
pointer cast it to GEP's type so that the later RAUW doesn't complain.
Added a test in nary-gep.ll
Reviewers: tra, meheff
Subscribers: mcrosier, llvm-commits, jholewinski
Differential Revision: http://reviews.llvm.org/D15618
llvm-svn: 256035
When identifying blocks post-dominated by an unreachable-terminated block
in BranchProbabilityInfo, consider only the edge to the normal destination
block if the terminator is InvokeInst and let calcInvokeHeuristics() decide
edge weights for the InvokeInst.
llvm-svn: 256028
This inlines materializeAll into the only caller
(materializeAllPermanently) and renames materializeAllPermanently to
just materializeAll.
llvm-svn: 256024
Renamed variables to be more reflective of whether they are
an instance of Linker, IRLinker or ModuleLinker. Also fix a stale
comment.
llvm-svn: 256011
LLVM MC has single methods which can handle the output of EH frame and DWARF CIE's and FDE's.
This code improves DWARFDebugFrame::parse to do the same for parsing.
This also allows llvm-objdump to support the --dwarf=frames option which objdump supports. This
option dumps the .eh_frame section using the new code in DWARFDebugFrame::parse.
http://reviews.llvm.org/D15535
Reviewed by Rafael Espindola.
llvm-svn: 256008
This change promotes load instructions which directly read from stores by
replacing them with mov instructions. If the store is wider than the load,
the load will be replaced with a bitfield extract.
For example :
STRWui %W1, %X0, 1
%W0 = LDRHHui %X0, 3
becomes
STRWui %W1, %X0, 1
%W0 = UBFMWri %W1, 16, 31
llvm-svn: 256004
Summary:
Third patch split out from http://reviews.llvm.org/D14752.
Only map in needed DISubroutine metadata (imported or otherwise linked
in functions and other DISubroutine referenced by inlined instructions).
This is supported for ThinLTO, LTO and llvm-link --only-needed, with
associated tests for each one.
Depends on D14838.
Reviewers: dexonsmith, joker.eph
Subscribers: davidxl, llvm-commits, joker.eph
Differential Revision: http://reviews.llvm.org/D14843
llvm-svn: 256003
We always create archives with just he filename as the member name, but
other archives can put a more complicated path in there.
This patches handles it by computing just the filename as we do when
adding a new member.
If storing the path is important for some reason, we should probably
have an orthogonal option for doing that and do it for both old and new
members.
Fixes pr25877.
llvm-svn: 256001
Summary:
1. Modify AnalyzeCallGraph() to retain function info for external functions
if the function has [InaccessibleMemOr]ArgMemOnly flags.
2. When analyzing the use of a global is function parameter at a call site,
mark the callee also as modifying the global appropriately.
3. Add additional test cases.
Depends on D15499
Reviewers: hfinkel, jmolloy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15605
llvm-svn: 255994
Inspired by the bug reported in 25846. Whatever we end up doing about that one, the value handle change is a generally good one since it will help catch this type of mistake more quickly.
Patch by: Manuel Jacob
llvm-svn: 255984
Type specific declarations have been moved to Type.h and error handling
routines have been moved to ErrorHandling.h. Both are included in Core.h
so nothing should change for projects directly including the headers,
but transitive dependencies may be affected.
llvm-svn: 255965
Use the 3-byte (4 with REX prefix) push-pop sequence for materializing
small constants. This is smaller than using a mov (5, 6 or 7 bytes
depending on size and REX prefix), but it's likely to be slower, so
only used for 'minsize'.
This is a follow-up to r255656.
Differential Revision: http://reviews.llvm.org/D15549
llvm-svn: 255936
Matt Arsenault