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	Commit message (Collapse)	Author	Age	Files	Lines
*	Simplify some code with no functionality change. Make the test a lot more	Nick Lewycky	2011-01-23	1	-15/+19
\| \| \| \| \| \| \|	robust against smarter optimizations, using the power of FileCheck. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124081 91177308-0d34-0410-b5e6-96231b3b80d8
*	Use value ranges to fold ext(trunc) in SCEV when possible.	Nick Lewycky	2011-01-23	1	-0/+34
\| \| \| \|	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124062 91177308-0d34-0410-b5e6-96231b3b80d8
*	Similarly, analyze truncate through multiply.	Nick Lewycky	2011-01-19	1	-0/+8
\| \| \| \|	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123842 91177308-0d34-0410-b5e6-96231b3b80d8
*	Add a missed SCEV fold that is required to continue analyzing the IR produced	Nick Lewycky	2011-01-19	1	-1/+9
\| \| \| \| \| \| \| \| \| \| \| \|	by indvars through the scev expander. trunc(add x, y) --> add(trunc x, y). Currently SCEV largely folds the other way which is probably wrong, but preserved to minimize churn. Instcombine doesn't do this fold either, demonstrating a missed optz'n opportunity on code doing add+trunc+add. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123838 91177308-0d34-0410-b5e6-96231b3b80d8
*	Add a missing SCEV simplification sext(zext x) --> zext x.	Nick Lewycky	2011-01-19	1	-0/+8
	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123832 91177308-0d34-0410-b5e6-96231b3b80d8