Duncan Sands 1845009290 In which I discover the existence of loops. Threading an operation ... over a phi node by applying it to each operand may be wrong if the operation and the phi node are mutually interdependent (the testcase has a simple example of this). So only do this transform if it would be correct to perform the operation in each predecessor of the block containing the phi, i.e. if the other operands all dominate the phi. This should fix the FFMPEG snow.c regression reported by İsmail Dönmez. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119347 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-16 12:16:38 +00:00
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llvm	In which I discover the existence of loops. Threading an operation	2010-11-16 12:16:38 +00:00
llvm-c	Fix comment typo.	2010-11-02 15:12:48 +00:00