llvm/test/Transforms/LoopIndexSplit, branch release_23

Add incoming value from header only if phi node has any use inside the loop.

2008-03-24T20:16:14Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48738 91177308-0d34-0410-b5e6-96231b3b80d8

If loop header is also loop exiting block then OrigPN is incoming value for B loop header.

2008-02-14T23:18:47Z

Fixes PR 2030. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47141 91177308-0d34-0410-b5e6-96231b3b80d8

A loop latch phi node may have uses inside loop, not just in loop header.

2008-02-13T22:23:07Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47093 91177308-0d34-0410-b5e6-96231b3b80d8

While moving exit condition, do not drop loop latch on the floor.

2008-02-13T22:06:36Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47089 91177308-0d34-0410-b5e6-96231b3b80d8

Keep track of exit value operand number when operands are swapped.

2008-02-13T19:48:48Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47082 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR 1995.

2008-02-08T22:49:13Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46898 91177308-0d34-0410-b5e6-96231b3b80d8

Filter loops that subtract induction variables.

2008-01-29T02:20:41Z

These loops are not yet handled. Fix PR 1912. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46484 91177308-0d34-0410-b5e6-96231b3b80d8

If ExitValue operand is also defined in Loop header then

2007-12-03T19:17:21Z

insert new ExitValue after this operand definition. This fixes PR1828. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44539 91177308-0d34-0410-b5e6-96231b3b80d8

Handle multiple induction variables.

2007-09-25T18:24:48Z

This fixes PR714. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42309 91177308-0d34-0410-b5e6-96231b3b80d8

Add transformation to update loop interation space. Now,

2007-09-25T17:31:19Z

for (i=A; i Y) do_something(); } is transformed into U=min(N,X); L=max(A,Y); for (i=L;i