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| author | Pete Cooper <peter_cooper@apple.com> | 2012-06-20 19:35:43 +0000 |
|---|---|---|
| committer | Pete Cooper <peter_cooper@apple.com> | 2012-06-20 19:35:43 +0000 |
| commit | 3affd9e8f366f241adbbc57ef53489ff2052db4f (patch) | |
| tree | 4d659a6bd6ace3e84f5138bb59b33b70b2b64c0c /lib/CodeGen | |
| parent | 7824152557cfe3a366963f504b2b956f853ebc3a (diff) | |
| download | external_llvm-3affd9e8f366f241adbbc57ef53489ff2052db4f.zip external_llvm-3affd9e8f366f241adbbc57ef53489ff2052db4f.tar.gz external_llvm-3affd9e8f366f241adbbc57ef53489ff2052db4f.tar.bz2 | |
Add users of a MERGE_VALUE node to the worklist to process again when the node is removed. Sorry, no test case. Foudn it by inspection of the code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158839 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 4b56e41..95dd2e6 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1322,6 +1322,9 @@ SDValue DAGCombiner::visitMERGE_VALUES(SDNode *N) { // Replacing results may cause a different MERGE_VALUES to suddenly // be CSE'd with N, and carry its uses with it. Iterate until no // uses remain, to ensure that the node can be safely deleted. + // First add the users of this node to the work list so that they + // can be tried again once they have new operands. + AddUsersToWorkList(N); do { for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) DAG.ReplaceAllUsesOfValueWith(SDValue(N, i), N->getOperand(i)); |