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genrecog: Fix crash on invalid input
authorsegher <segher@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 15 Mar 2016 00:42:43 +0000 (00:42 +0000)
committersegher <segher@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 15 Mar 2016 00:42:43 +0000 (00:42 +0000)
commit85099d886742d771d4d410d7d28bd7d593dbcfd0
tree6b196c9a8b3779b7c85edb7eb2feee8c64dada80tree | snapshot
parentb99d386d07b54e50dfa3c87d85c5610d9d5a7c23commit | diff
genrecog: Fix crash on invalid input

If your machine description refers to a non-existent predicate genrecog
crashes.  This fixes it.

* genrecog.c (match_pattern_2): If pred is NULL don't call
safe_predicate_mode on it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234206 138bc75d-0d04-0410-961f-82ee72b054a4
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