diff options
| author | Chris Lattner <sabre@nondot.org> | 2007-05-06 00:35:24 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-05-06 00:35:24 +0000 |
| commit | ff7fc5dabef6931e7d23ee0613aa60e1d09dfbb0 (patch) | |
| tree | 165c552417676e3b6ad51b6eecb27e089668cfac /lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | abfbf85004b2114ee33e05fc9efe3a7bd044e402 (diff) | |
implement the 'string constant' optimization. This shrinks kc.bit from
2878544 to 2815788
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36818 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index 7198bc0060..a29f23ddfc 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -484,6 +484,12 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal, assert (CFP->getType() == Type::DoubleTy && "Unknown FP type!"); Record.push_back(DoubleToBits((double)CFP->getValue())); } + } else if (isa<ConstantArray>(C) && cast<ConstantArray>(C)->isString()) { + // Emit constant strings specially. + Code = bitc::CST_CODE_STRING; + for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) + Record.push_back(cast<ConstantInt>(C->getOperand(i))->getZExtValue()); + } else if (isa<ConstantArray>(C) || isa<ConstantStruct>(V) || isa<ConstantVector>(V)) { Code = bitc::CST_CODE_AGGREGATE; |