search for: serversplitphinodes

> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of Wei Dang > Subject: [LLVMdev] Question about method CodeExtractor::severSplitPHINodes > In the implementation of serverSplitPHINodes(), why it only checks the > first PHI node for possible multiple inputs from outside the region to > extract. There could be more than one PHI nodes in the header block, > and the code only checks the first one. I don't quite get it. What if > the first PHI node contains only inco...

Hi folks, Hope this is not a silly question. But it bothers me when I am thinking about it. My question is: 1. In the implementation of serverSplitPHINodes(), why it only checks the first PHI node for possible multiple inputs from outside the region to extract. There could be more than one PHI nodes in the header block, and the code only checks the first one. I don't quite get it. What if the first PHI node contains only incoming value...

...s R < Chuck.Caldarale at unisys.com> wrote: > > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > > On Behalf Of Wei Dang > > Subject: [LLVMdev] Question about method > CodeExtractor::severSplitPHINodes > > > In the implementation of serverSplitPHINodes(), why it only checks the > > first PHI node for possible multiple inputs from outside the region to > > extract. There could be more than one PHI nodes in the header block, > > and the code only checks the first one. I don't quite get it. What if > > the first PHI node...