is inserted into the table, it remembers that the value needs to be popped
off. This makes purgeFunction much faster, speeding up bcwriting of 447.dealII
from 6.8->4.6s (47%).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34133 91177308-0d34-0410-b5e6-96231b3b80d8
function-local values. This speeds up bcwriting a small 2.2% (10.384->10.156s
on 447.dealII), but paves the way for more important changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34131 91177308-0d34-0410-b5e6-96231b3b80d8
2. All function-level constants are now incorporated into the module-level
constant pool, since the compaction table was removed. Eliminate extra
work to check for them.
This speeds up the bcwriter from 24.4s to 13.1s on 447.dealII and .73 -> .56s
on kc++ in a release build.
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api's look like this:
ModuleProvider *getBytecodeModuleProvider(
const std::string &Filename, ///< Name of file to be read
BCDecompressor_t *BCDC = Compressor::decompressToNewBuffer,
std::string* ErrMsg = 0, ///< Optional error message holder
BytecodeHandler* H = 0 ///< Optional handler for reader events
);
This is ugly, but allows a client to say:
getBytecodeModuleProvider("foo", 0);
If they do this, there is no dependency on the compression libraries, saving
codesize.
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This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.
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This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
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outweight its computational costs. This patch removes all compaction
table handling from the bcreader and bcwriter. For the record, here's the
difference betweeen having and not having compaction tables for some tests:
Test With Without Size Chg
Olden/mst 5,602 5,598 +0.1%
viterbi 18,026 17,795 +1.3%
obsequi 162,133 166,663 -2.8%
burg 224,090 228,148 -1.8%
kimwitu++ 4,933,263 5,121,159 -3.8%
176.gcc 8,470,424 9,141,539 -7.3%
It seems that it is more beneficial to larger files, but even on the largest
test case we have (176.gcc) it only amounts ot an I/O saving of 7.3%.
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Remove the Endianness and PointerSize fields from the ModuleHeader and
replace it with the DataLayout field.
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rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.
This makes naming much more consistent. For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)
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