Josh Magee 5b6af7163d [stackprotector] Use analysis from the StackProtector pass for stack layout in PEI a nd LocalStackSlot passes. ... This changes the MachineFrameInfo API to use the new SSPLayoutKind information produced by the StackProtector pass (instead of a boolean flag) and updates a few pass dependencies (to preserve the SSP analysis). The stack layout follows the same approach used prior to this change - i.e., only LargeArray stack objects will be placed near the canary and everything else will be laid out normally. After this change, structures containing large arrays will also be placed near the canary - a case previously missed by the old implementation. Out of tree targets will need to update their usage of MachineFrameInfo::CreateStackObject to remove the MayNeedSP argument. The next patch will implement the rules for sspstrong and sspreq. The end goal is to support ssp-strong stack layout rules. WIP. Differential Revision: http://llvm-reviews.chandlerc.com/D2158 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197653 91177308-0d34-0410-b5e6-96231b3b80d8		2013-12-19 03:17:11 +00:00
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llvm	[stackprotector] Use analysis from the StackProtector pass for stack layout in PEI a nd LocalStackSlot passes.	2013-12-19 03:17:11 +00:00
llvm-c	Begin adding docs and IR-level support for the inalloca attribute	2013-12-19 02:14:12 +00:00