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| author | Bill Wendling <isanbard@gmail.com> | 2011-08-19 00:05:40 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-08-19 00:05:40 +0000 |
| commit | 7e8840c4d9ac7cc259fd967d9fe7540740d1ce92 (patch) | |
| tree | b5751937d324ef6e3248abc96f5fee8df33759c1 /lib/Transforms/Utils/LoopSimplify.cpp | |
| parent | df01610d6f932e82941233d51b29a81445d4bd8d (diff) | |
Add SplitLandingPadPredecessors().
SplitLandingPadPredecessors is similar to SplitBlockPredecessors in that it
splits the current block and attaches a set of predecessors to the new basic
block. However, it differs from SplitBlockPredecessors in that it's specifically
designed to handle landing pad blocks.
Two new basic blocks are created: one that is has the vector of predecessors as
its predecessors and one that has the remaining predecessors as its
predecessors. Those two new blocks then receive a cloned copy of the landingpad
instruction from the original block. The landingpad instructions are joined in a
PHI, etc. Like SplitBlockPredecessors, it updates the LLVM IR, AliasAnalysis,
DominatorTree, DominanceFrontier, LoopInfo, and LCCSA analyses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138014 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/LoopSimplify.cpp')
0 files changed, 0 insertions, 0 deletions