Correctly parse the Long Filename section of the archive.
When reading in archive members, set their ModuleIDs to
"ARCHIVENAME(MEMBERNAME)", as is traditional.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10043 91177308-0d34-0410-b5e6-96231b3b80d8
constant expression, but is of (for example) ubyte type, then it is a
ConstantUInt. This was not true for placeholders.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9994 91177308-0d34-0410-b5e6-96231b3b80d8
* More dense bytecode encoding for varargs calls (like printf)
* Eliminated the extremely old bytecode format. rev #0 is now 1.0
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Rename SlotCalculator::getValSlot() to SlotCalculator::getSlot(),
SlotCalculator::insertValue() to SlotCalculator::getOrCreateSlot(),
SlotCalculator::insertVal() to SlotCalculator::insertValue(), and
SlotCalculator::doInsertVal() to SlotCalculator::doInsertValue().
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For now, we translate linkonce into weak linkage in the bytecode format because
we don't have enough bits to represent it. We will rev the bytecode version
soon anyways, so this will be fixed in the near future.
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are ordered by name, not by slot, so the previous solution wasn't any good.
On a large testcase, this reduces time to parse from 2.17s to 1.58s.
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changes:
* BytecodeReader::getType(...) used to return a null pointer
on error. This was only checked about half the time. Now we convert
it to throw an exception, and delete the half that checked for error.
This was checked in before, but psmith crashed and lost the change :(
* insertValue no longer returns -1 on error, so callers don't need to
check for it.
* Substantial rewrite of InstructionReader.cpp, to use more efficient,
simpler, data structures. This provides another 5% speedup. This also
makes the code much easier to read and understand.
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simplifies the control flow a bit. This provides a small (~3%) speedup,
but it's primarily a cleanup exercise.
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new, simpler, ForwardReferences data structure. This is just the first
simple replacement, subsequent changes will improve the code more.
This simple change improves the performance of loading a file from HDF5
(contributed by Bill) from 2.36s to 1.93s, a 22% improvement. This
presumably has to do with the fact that we only create ONE placeholder for
a particular forward referenced values, and also may be because the data
structure is much simpler.
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in the bytecode parser. Before we tried to shoehorn basic blocks into the
"getValue" code path with other types of values. For a variety of reasons
this was a bad idea, so this patch separates it out into its own data structure.
This simplifies the code, makes it fit in 80 columns, and is also much faster.
In a testcase provided by Bill, which has lots of PHI nodes, this patch speeds
up bytecode parsing from taking 6.9s to taking 2.32s. More speedups to
follow later.
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