adjustment fields, and an optional flag. If there is a "dynamic_stackalloc" in
the code, make sure that it's bracketed by CALLSEQ_START and CALLSEQ_END. If
not, then there is the potential for the stack to be changed while the stack's
being used by another instruction (like a call).
This can only result in tears...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44037 91177308-0d34-0410-b5e6-96231b3b80d8
clients of the Deserializer to read the pointer ID before they are ready
to deserialize the object (which can mean registering a pointer reference
with the backpatcher).
Changed some methods that took an argument "SerializedPtrID" to "const SerializedPtrID&" (pass-by-reference). This is to accommodate a future
revision of SerializedPtrID where it may be much fatter than an unsigned
integer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44021 91177308-0d34-0410-b5e6-96231b3b80d8
deserialization as a temporary location for storing serialized pointer identifiers. The
definition of SerializedPtrID will likely change significantly in the future, and the
current implementation caused compilation errors on some 64-bit machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43983 91177308-0d34-0410-b5e6-96231b3b80d8
serialized block in the bitstream, including a block in an entirely different
nesting than the current block. This is useful for deserializing objects from
a bitstream in an order different from the order that they were serialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43973 91177308-0d34-0410-b5e6-96231b3b80d8
Moved some of the logic in BitstreamReader::ExitBlock into a utility function
BitstreamReader::PopBlockScope. The latter is a private method. It will also
be called by Deserializer to manipulate the current "block scope."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43972 91177308-0d34-0410-b5e6-96231b3b80d8
apints on big-endian machines if the bitwidth is
not a multiple of 8. Introduce a new helper,
MVT::getStoreSizeInBits, and use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43934 91177308-0d34-0410-b5e6-96231b3b80d8
block that is being visited in the bitstream. The client can also now
skip blocks before reading them, and query the current abbreviation number
as seen from the perspective of the Deserializer. This allows the client
to be more interactive in the deserialization process (if they so choose).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43916 91177308-0d34-0410-b5e6-96231b3b80d8
instead of just using "unsigned". This gives us more flexibility in changing
the definition of the handle later, and is more self-documenting.
Added tracking of block stack in the Deserializer. Now clients can query
if they are still within a block using the methods GetCurrentBlockLocation()
and FinishedBlock().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43903 91177308-0d34-0410-b5e6-96231b3b80d8
array of pointers to not allocate a second array to contain the pointer ids.
Fixed bug in the same member function where deserialized pointers were
not being registered with the backpatcher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43855 91177308-0d34-0410-b5e6-96231b3b80d8
to group the pointer IDs together in the bitstream before their referenced
contents (which will lend itself to more efficient encoding).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43845 91177308-0d34-0410-b5e6-96231b3b80d8
by value. This version prohibits backpatching of pointers, so it
useful when a pointee is always known to be deserialized beforehand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43799 91177308-0d34-0410-b5e6-96231b3b80d8
should only effect x86 when using long double. Now
12/16 bytes are output for long double globals (the
exact amount depends on the alignment). This brings
globals in line with the rest of LLVM: the space
reserved for an object is now always the ABI size.
One tricky point is that only 10 bytes should be
output for long double if it is a field in a packed
struct, which is the reason for the additional
argument to EmitGlobalConstant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43688 91177308-0d34-0410-b5e6-96231b3b80d8
or getTypeSizeInBits as appropriate in ScalarReplAggregates.
The right change to make was not always obvious, so it would
be good to have an sroa guru review this. While there I noticed
some bugs, and fixed them: (1) arrays of x86 long double have
holes due to alignment padding, but this wasn't being spotted
by HasStructPadding (renamed to HasPadding). The same goes
for arrays of oddly sized ints. Vectors also suffer from this,
in fact the problem for vectors is much worse because basic
vector assumptions seem to be broken by vectors of type with
alignment padding. I didn't try to fix any of these vector
problems. (2) The code for extracting smaller integers from
larger ones (in the "int union" case) was wrong on big-endian
machines for integers with size not a multiple of 8, like i1.
Probably this is impossible to hit via llvm-gcc, but I fixed
it anyway while there and added a testcase. I also got rid of
some trailing whitespace and changed a function name which
had an obvious typo in it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43672 91177308-0d34-0410-b5e6-96231b3b80d8
can be eliminated by the allocator is the destination and source targets the
same register. The most common case is when the source and destination registers
are in different class. For example, on x86 mov32to32_ targets GR32_ which
contains a subset of the registers in GR32.
The allocator can do 2 things:
1. Set the preferred allocation for the destination of a copy to that of its source.
2. After allocation is done, change the allocation of a copy destination (if
legal) so the copy can be eliminated.
This eliminates 443 extra moves from 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43662 91177308-0d34-0410-b5e6-96231b3b80d8
the target pointer to be passed by reference. This can result in less
typing, as the object to be deserialized can be inferred from the
argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43647 91177308-0d34-0410-b5e6-96231b3b80d8
