Programming Languages Research Group: Git

author	Quentin Colombet <qcolombet@apple.com>
	Wed, 19 Jun 2013 19:59:41 +0000 (19:59 +0000)
committer	Quentin Colombet <qcolombet@apple.com>
	Wed, 19 Jun 2013 19:59:41 +0000 (19:59 +0000)
commit	5a2fb058d3628063cacc3dda0cda331c8d4dab11
tree	48c8684cae8e901efe9c6fd4e984e69bed1fd596	tree \| snapshot
parent	ae5758bac75f561f8aa519476942e02be73022e4	commit \| diff

LSR: Fix the parameters used to compute the scaling factor cost.

Prior to this change, the considered addressing modes may be invalid since the
maximum and minimum offsets were not taking into account.
This was causing an assertion failure.

The added test case exercices that behavior.

<rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal
addressing mode has an illegal cost!")

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184341 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopStrengthReduce.cpp		diff \| blob \| history
test/Transforms/LoopStrengthReduce/scaling_factor_cost_crash.ll	[new file with mode: 0644]	blob