David Majnemer 44123517c9 InstSimplify: Fix a bug when INT_MIN is in a sdiv
When INT_MIN is the numerator in a sdiv, we would not properly handle
overflow when calculating the bounds of possible values; abs(INT_MIN) is
not a meaningful number.

Instead, check and handle INT_MIN by reasoning that the largest value is
INT_MIN/-2 and the smallest value is INT_MIN.

This fixes PR20199.

llvm-svn: 212307
2014-07-04 00:23:39 +00:00
2014-06-02 12:54:32 +00:00
2014-06-25 13:13:36 +00:00
2014-06-23 17:58:39 +00:00
2014-05-29 19:59:58 +00:00

Low Level Virtual Machine (LLVM)
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