search for: cannoteliminateframe

...her down where setScavengingFrameIndex should have been set. As a result of it was not being set there, there was an assertion failure (ScavengingFrameIndex >= 0) and subsequent memory corruption in RegScavenger::scavengeRegister. I fixed this by performing the CanEliminateFrame and RegInfo->cannotEliminateFrame checks before the call to estimateRSSStackSizeLimit, since these values are available before BigStack is initialized. Does that sound reasonable? I've attached a patch with my change. Oh, I should mention that the previous version of LLVM we used, 2.6, didn't include the check to hasStackF...

Hello Alok, > I fixed this by performing the CanEliminateFrame and > RegInfo->cannotEliminateFrame checks before the call to > estimateRSSStackSizeLimit, since these values are available before BigStack > is initialized. Does that sound reasonable? I’ve attached a patch with my > change. Will you please provide a testcase which reproduces the problem? Thanks! -- With best regards, Ant...

...at cs.uiuc.edu] On Behalf Of Anton Korobeynikov Sent: 05 December 2011 11:11 To: Alok Manchanda Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] bug in ARMFrameLowering.cpp:processFunctionBeforeCalleeSavedScan Hello Alok, > I fixed this by performing the CanEliminateFrame and > RegInfo->cannotEliminateFrame checks before the call to > estimateRSSStackSizeLimit, since these values are available before BigStack > is initialized. Does that sound reasonable? I’ve attached a patch with my > change. Will you please provide a testcase which reproduces the problem? Thanks! -- With best regards, Ant...