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Fix segfault on verify_dominators error path
authoramodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4>
Sat, 28 May 2016 09:16:00 +0000 (09:16 +0000)
committeramodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4>
Sat, 28 May 2016 09:16:00 +0000 (09:16 +0000)
commit751c7db87e5b5012566a73cfbfdf85cc55928c98
tree7f09e195ecac1319fce72654c18fb5c78ca15315tree | snapshot
parente53187927ba5310336b8a85242704068491ec826commit | diff
Fix segfault on verify_dominators error path

* dominance.c (verify_dominators): Don't segfault on NULL imm_bb.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236845 138bc75d-0d04-0410-961f-82ee72b054a4
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