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Remove duplicate successors from indirectbr instructions before building the machine...
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Thu, 11 Feb 2010 00:34:18 +0000 (00:34 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Thu, 11 Feb 2010 00:34:18 +0000 (00:34 +0000)
commit598b24c6d1d6eecb558051d79d8b801542663e09
treeaaba1c7b0caf7c5420e8ec4c67e8d26792fe9cd2tree | snapshot
parentbe905e26f66e1b34fa4b2f5744b948007fd4ed0acommit | diff
Remove duplicate successors from indirectbr instructions before building the machine CFG.

This makes early tail duplication run 60 times faster when compiling the Firefox
JavaScript interpreter, see PR6186.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95831 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors