Files
llvm/test/Transforms/InstCombine
Mikael Holmen aac0739778 Remove sometimes faulty rewrite of memcpy in instcombine.
Summary:
Solves PR 31990.

The bad rewrite could replace a memcpy of one word with
 store i4 -1
while it should actually be
 store i8 -1

Hopefully opt and llc has improved enough so the original optimization
done by the code isn't needed anymore.

One already existing testcase is affected. It originally tested that
the memcpy was replaced with
 load double
but since we now remove that rewrite it will be
 load i64
instead.

Patch suggestion by Eli Friedman.

Reviewers: eli.friedman, majnemer, efriedma

Reviewed By: efriedma

Subscribers: efriedma, llvm-commits

Differential Revision: https://reviews.llvm.org/D30254

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296585 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-01 06:45:20 +00:00
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2016-09-13 12:10:14 +00:00
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This directory contains test cases for the instcombine transformation.  The
dated tests are actual bug tests, whereas the named tests are used to test
for features that the this pass should be capable of performing.