Matthias Braun cd03942492 RegScavenging: Add scavengeRegisterBackwards() ... Re-apply r276044/r279124/r305516. Fixed a problem where we would refuse to place spills as the very first instruciton of a basic block and thus artifically increase pressure (test in test/CodeGen/PowerPC/scavenging.mir:spill_at_begin) This is a variant of scavengeRegister() that works for enterBasicBlockEnd()/backward(). The benefit of the backward mode is that it is not affected by incomplete kill flags. This patch also changes PrologEpilogInserter::doScavengeFrameVirtualRegs() to use the register scavenger in backwards mode. Differential Revision: http://reviews.llvm.org/D21885 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305625 91177308-0d34-0410-b5e6-96231b3b80d8		2017-06-17 02:08:18 +00:00
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llvm	RegScavenging: Add scavengeRegisterBackwards()	2017-06-17 02:08:18 +00:00
llvm-c	Sort the remaining #include lines in include/... and lib/....	2017-06-06 11:49:48 +00:00