[llvm-commits] [PATCH] LICM: Do not loose alignment on promotion

[Tobias Grosser]

The promotion code lost any alignment information, when hoisting loads and
stores out of the loop. This lead to incorrect aligned memory accesses. We now
use the largest alignment we can prove to be correct.
---

 lib/Transforms/Scalar/LICM.cpp               |   38 ++++++++++++++++++++-----
 test/Transforms/LICM/2011-07-06-Alignment.ll |   26 +++++++++++++++++
 2 files changed, 56 insertions(+), 8 deletions(-)
 create mode 100644 test/Transforms/LICM/2011-07-06-Alignment.ll

OK to commit?

Tobi

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