4 Commits

Author	SHA1	Message	Date
David Majnemer	0955fc3162	[WinEH] Stop BranchFolding from merging across funclets ... BranchFolding would merge two funclets together, this is not OK. Disable this and strengthen the assertion in FuncletLayout. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249069 91177308-0d34-0410-b5e6-96231b3b80d8	2015-10-01 21:04:13 +00:00
David Majnemer	68754da26d	[WinEH] Make FuncletLayout more robust against catchret ... Catchret transfers control from a catch funclet to an earlier funclet. However, it is not completely clear which funclet the catchret target is part of. Make this clear by stapling the catchret target's funclet membership onto the CATCHRET SDAG node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249052 91177308-0d34-0410-b5e6-96231b3b80d8	2015-10-01 18:44:59 +00:00
David Majnemer	0115643a5b	[WinEH] Moved funclet pads should be in relative order ... We shifted the MachineBasicBlocks to the end of the MachineFunction in DFS order. This will not ensure that MachineBasicBlocks which fell through to one another will remain contiguous. Instead, implement a stable sort algorithm for iplist. This partially reverts commit r214150. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247978 91177308-0d34-0410-b5e6-96231b3b80d8	2015-09-18 08:18:07 +00:00
David Majnemer	048d7e541d	[WinEH] Add a funclet layout pass ... Windows EH funclets need to be contiguous. The FuncletLayout pass will ensure that the funclets are together and begin with a funclet entry MBB. Differential Revision: http://reviews.llvm.org/D12943 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247937 91177308-0d34-0410-b5e6-96231b3b80d8	2015-09-17 20:45:18 +00:00