4 Commits

Author	SHA1	Message	Date
Anna Zaks	e2a947a4f7	Function::getNumBlockIDs() should be used instead of Function::size() to set the upper limit on the block IDs since basic blocks might get removed (simplified away) after being initially numbered. Plus the test case, in which SelectionDAGBuilder::visitBr() calls llvm::MachineFunction::removeFromMBBNumbering(), which introduces the hole in numbering leading to an assert in llc (prior to the fix). ... llvm-svn: 133113	2011-06-16 00:03:21 +00:00
Jakob Stoklund Olesen	5add6d16b7	Build the Hopfield network incrementally when splitting global live ranges. ... It is common for large live ranges to have few basic blocks with register uses and many live-through blocks without any uses. This approach grows the Hopfield network incrementally around the use blocks, completely avoiding checking interference for some through blocks. llvm-svn: 129188	2011-04-09 02:59:09 +00:00
Jakob Stoklund Olesen	ce25984bae	Add a hidden command line option to display edge bundle graphs as they are ... calculated. llvm-svn: 122912	2011-01-05 21:50:24 +00:00
Jakob Stoklund Olesen	abf8941a60	Turn the EdgeBundles class into a stand-alone machine CFG analysis pass. ... The analysis will be needed by both the greedy register allocator and the X86FloatingPoint pass. It only needs to be computed once when the CFG doesn't change. This pass is very fast, usually showing up as 0.0% wall time. llvm-svn: 122832	2011-01-04 21:10:05 +00:00