Function names in ObjC can have spaces in them. This interacts poorly
with name compression, which uses spaces to separate PGO names. Fix the
issue by using a different separator and update a test.
I chose "\01" as the separator because 1) it's non-printable, 2) we
strip it from PGO names, and 3) it's the next natural choice once "\00"
is discarded (that one's overloaded).
Differential Revision: http://reviews.llvm.org/D18516
llvm-svn: 264587
IPO doesn't work very well across symbols referenced
by others TUs. The linker here tries to evaluate
which symbols are safe to internalize and switches
their linkage.
Differential Revision: http://reviews.llvm.org/D18415
llvm-svn: 264585
In the Microsoft ABI, only bitfields with identical types get
packed together, so use unsigned consistently instead of a
bool / unsigned mix.
No intended behavior change.
llvm-svn: 264582
- Do not optimize stack slots in optnone functions.
- Get aligned-base register from HexagonMachineFunctionInfo instead of
looking for ALIGNA instruction in the function's body.
llvm-svn: 264580
Solution unifies interface of RegionCodeGenTy type to allow insert
runtime-specific code before/after main codegen action defined in
CGStmtOpenMP.cpp file. Runtime should not define its own RegionCodeGenTy
for general OpenMP directives, but must be allowed to insert its own
(required) code to support target specific codegen.
llvm-svn: 264576
Solution unifies interface of RegionCodeGenTy type to allow insert
runtime-specific code before/after main codegen action defined in
CGStmtOpenMP.cpp file. Runtime should not define its own RegionCodeGenTy
for general OpenMP directives, but must be allowed to insert its own
(required) code to support target specific codegen.
llvm-svn: 264569
ICMP instruction selection fails on SKX and KNL for i1 operand.
I use XOR to resolve:
(A == B) is equivalent to (A xor B) == 0
Differential Revision: http://reviews.llvm.org/D18511
llvm-svn: 264566
I broke this back in r264529 because I forgot to serialize the UuidAttr
member. Fix this by replacing the UuidAttr with a StringRef which is
properly serialized and deserialized.
llvm-svn: 264562
When emitting coverage mappings for functions with local linkage and an
unknown filename, we use "<unknown>:func" for the PGO function name. The
problem is that we don't strip "<unknown>" from the name when loading
coverage data, like we do for other file names. Fix that and add a test.
llvm-svn: 264559
Change writeFunctionMetadata to call writeMetadataRecords. For now
there's no functionality change, but makes it easy to serialize other
types of metadata in the function block in the future.
llvm-svn: 264557
To match writeMetadataRecords, writeNamedMetadata and
writeMetadataStrings, change:
WriteModuleMetadata => writeModuleMetadata
WriteFunctionLocalMetadata => writeFunctionMetadata
Write##CLASS => write##CLASS
The only major change is "FunctionLocal" => "Function". The point is to
be less specific, in preparation for emitting normal metadata records
inside function metadata blocks (currently we only emit
`LocalAsMetadata` there).
llvm-svn: 264556
We don't really need a separate vector here; instead, point at a range
inside the main MDs array. This matches how r264551 references the
ranges of strings and non-strings.
llvm-svn: 264552
Spiritually reapply commit r264409 (reverted in r264410), albeit with a
bit of a redesign.
Firstly, avoid splitting the big blob into multiple chunks of strings.
r264409 imposed an arbitrary limit to avoid a massive allocation on the
shared 'Record' SmallVector. The bug with that commit only reproduced
when there were more than "chunk-size" strings. A test for this would
have been useless long-term, since we're liable to adjust the chunk-size
in the future.
Thus, eliminate the motivation for chunk-ing by storing the string sizes
in the blob. Here's the layout:
vbr6: # of strings
vbr6: offset-to-blob
blob:
[vbr6]: string lengths
[char]: concatenated strings
Secondly, make the output of llvm-bcanalyzer readable.
I noticed when debugging r264409 that llvm-bcanalyzer was outputting a
massive blob all in one line. Past a small number, the strings were
impossible to split in my head, and the lines were way too long. This
version adds support in llvm-bcanalyzer for pretty-printing.
<STRINGS abbrevid=4 op0=3 op1=9/> num-strings = 3 {
'abc'
'def'
'ghi'
}
From the original commit:
Inspired by Mehdi's similar patch, http://reviews.llvm.org/D18342, this
should (a) slightly reduce bitcode size, since there is less record
overhead, and (b) greatly improve reading speed, since blobs are super
cheap to deserialize.
llvm-svn: 264551
Split helper out of EmitRecordWithAbbrevImpl called emitBlob to reduce
code duplication, and add a few tests for it.
No functionality change intended.
llvm-svn: 264550
The implementation is fairly obvious. This is preparation for using
some blobs in bitcode.
For clarity (and perhaps future-proofing?), I moved the call to
JumpToBit in BitstreamCursor::readRecord ahead of calling
MemoryObject::getPointer, since JumpToBit can theoretically (a) read
bytes, which (b) invalidates the blob pointer.
This isn't strictly necessary the two memory objects we have:
- The return of RawMemoryObject::getPointer is valid until the memory
object is destroyed.
- StreamingMemoryObject::getPointer is valid until the next chunk is
read from the stream. Since the JumpToBit call is only going ahead
to a word boundary, we'll never load another chunk.
However, reordering makes it clear by inspection that the blob returned
by BitstreamCursor::readRecord will be valid.
I added some tests for StreamingMemoryObject::getPointer and
BitstreamCursor::readRecord.
llvm-svn: 264549
Change the filename to indicate this is a test, rename the tests, move
them into an anonymous namespace, and rename some variables. All to
match our usual style before making further changes.
llvm-svn: 264548
Allow users of SimpleBitstreamCursor to limit the number of bytes
available to the cursor. This is preparation for instantiating a cursor
that isn't allowed to load more bytes from a StreamingMemoryObject (just
move around the ones already-loaded).
llvm-svn: 264547
Add API to SimpleBitstreamCursor to allow users to translate between
byte addresses and pointers.
- jumpToPointer: move the bit position to a particular pointer.
- getPointerToByte: get the pointer for a particular byte.
- getPointerToBit: get the pointer for the byte of the current bit.
- getCurrentByteNo: convenience function for assertions and tests.
Mainly adds unit tests (getPointerToBit/Byte already has a use), but
also preparation for eventually using jumpToPointer.
llvm-svn: 264546
Split out SimpleBitstreamCursor from BitstreamCursor, which is a
lower-level cursor with no knowledge of bitcode blocks, abbreviations,
or records. It just knows how to read bits and navigate the stream.
This is mainly organizational, to separate the API for manipulating raw
bits from that for bitcode concepts like Record and Block.
llvm-svn: 264545
This reverts commit c45f2afac5d6855a4804456a0f718563dc47ada0.
Looks like it may be causing a failure, I'll revert for now.
from
lib/CodeGen/AsmPrinter/DwarfDebug.cpp:14:
/usr/include/c++/4.9.2/bits/stl_pair.h: In instantiation of
'std::pair<_T1, _T2>& std::pair<_T1,
_T2>::operator=(const std::pair<_T1, _T2>&) [with _T1 =
std::unique_ptr<llvm::DwarfTypeUnit>; _T2 = const
llvm::DICompositeType*]':
/usr/include/c++/4.9.2/bits/stl_pair.h:160:8: error: use of deleted
function 'std::unique_ptr<_Tp, _Dp>& std::unique_ptr<_Tp,
_Dp>::operator=(const std::unique_ptr<_Tp, _Dp>&) [with _Tp =
llvm::DwarfTypeUnit; _Dp = std::default_delete<llvm::DwarfTypeUnit>]'
first = __p.first;
^
llvm-svn: 264544
I tried to use isPodLike in:
http://reviews.llvm.org/D18483
That failed because !is_class is too strict on platforms which don't yet
have is_trivially_copyable. This update tries to make isPodLike smarter
for platforms which don't have is_trivially_copyable, and AFAICT it
Should Just Work on all of them. I'll revert if the bots disagree with
me.
I'll also rename isPodLike to isTriviallyCopyable if this all works out,
since that's what the standard calls it now and one day we'll be rid of
isPodLike.
llvm-svn: 264541
bit from the top bit to the bottom bit, so that we don't need 6 VBR6 hunks for
each macro location. Reduces libstdc++ module size by about 1%.
llvm-svn: 264540
Vedant Kumar