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| author | Justin Bogner <mail@justinbogner.com> | 2017-01-30 18:29:46 +0000 |
|---|---|---|
| committer | Justin Bogner <mail@justinbogner.com> | 2017-01-30 18:29:46 +0000 |
| commit | 8f520a73b2b7c721c494662949ca9dde1e013bad (patch) | |
| tree | cb12ff6e02df13d38b57024fb7ab507546e066b7 /llvm/lib/Transforms | |
| parent | 7ac943c46344ef4c40096fc161ec913c733cdffc (diff) | |
| download | bcm5719-llvm-8f520a73b2b7c721c494662949ca9dde1e013bad.tar.gz bcm5719-llvm-8f520a73b2b7c721c494662949ca9dde1e013bad.zip | |
SDAG: Update ChainNodesMatched during UpdateChains if a node is replaced
Previously, we would hit UB (or the ISD::DELETED_NODE assert) if we
happened to replace a node during UpdateChains, because it would be
left in the list we were iterating over. This nulls out the pointer
when that happens so that we can avoid the issue.
Fixes llvm.org/PR31710
llvm-svn: 293522
Diffstat (limited to 'llvm/lib/Transforms')
0 files changed, 0 insertions, 0 deletions
