Commit Graph

1 Commits

Author SHA1 Message Date
Warren Ristow f502d0e0a5 [SCEV] Suppress hoisting insertion point of binops when unsafe
InsertBinop tries to move insertion-points out of loops for expressions
that are loop-invariant. This patch adds a new parameter, IsSafeToHost,
to guard that hoisting. This allows callers to suppress that hoisting
for unsafe situations, such as divisions that may have a zero
denominator.

This fixes PR38697.

Differential Revision: https://reviews.llvm.org/D55232


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360280 91177308-0d34-0410-b5e6-96231b3b80d8
2019-05-08 18:50:07 +00:00