Chandler Carruth
020a15db9d
Sink the collection of return instructions until after *all* ...
simplification has been performed. This is a bit less efficient
(requires another ilist walk of the basic blocks) but shouldn't matter
in practice. More importantly, it's just too much work to keep track of
all the various ways the return instructions can be mutated while
simplifying them. This fixes yet another crasher, reported by Daniel
Dunbar.
llvm-svn: 154179
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020a15db9d