Make the range calculations for addrecs to be more conservative,
authorDan Gohman <gohman@apple.com>
Tue, 21 Jul 2009 00:42:47 +0000 (00:42 +0000)
committerDan Gohman <gohman@apple.com>
Tue, 21 Jul 2009 00:42:47 +0000 (00:42 +0000)
commit75dced058a8a71e018ab48fc61a4d47115c42947
tree878eba90aff13b14daa0eb16030ee63e18b28e53
parent32291b1afcdd8a1be7bbff7599c860c0425eb26a
Make the range calculations for addrecs to be more conservative,
as they aren't currently prepared to handle complicated overflow
cases.

llvm-svn: 76524
llvm/lib/Analysis/ScalarEvolution.cpp