From 4c52392ba35a763a3113f373bfb102791f8ac520 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Thu, 9 Oct 2003 22:46:58 +0000 Subject: [PATCH] Reserve space for PHI nodes when we read them in. This provides a VERY tasty 15% speedup on the testcase from Bill. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8993 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Bytecode/Reader/InstructionReader.cpp | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Bytecode/Reader/InstructionReader.cpp b/lib/Bytecode/Reader/InstructionReader.cpp index a763d66b227..b415025a578 100644 --- a/lib/Bytecode/Reader/InstructionReader.cpp +++ b/lib/Bytecode/Reader/InstructionReader.cpp @@ -125,6 +125,7 @@ Instruction *BytecodeParser::ParseInstruction(const unsigned char *&Buf, throw std::string("Invalid phi node encountered!\n"); PHINode *PN = new PHINode(InstTy); + PN->op_reserve(Args.size()); for (unsigned i = 0, e = Args.size(); i != e; i += 2) PN->addIncoming(getValue(RI.Type, Args[i]), getBasicBlock(Args[i+1])); return PN; -- 2.34.1