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path: root/llvm/test/Transforms/IndVarSimplify/gep-with-mul-base.ll
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* Remove tests: indvars trivially preserves GEPs now.Andrew Trick2012-03-221-68/+0
| | | | llvm-svn: 153258
* Conditionalize indvars test that relies on SCEV expansion of geps,Andrew Trick2011-09-121-4/+13
| | | | | | which is only relevant with canonical IVs llvm-svn: 139556
* Re-implement the main strength-reduction portion of LoopStrengthReduction.Dan Gohman2010-01-211-2/+3
| | | | | | | | | | | | | | This new version is much more aggressive about doing "full" reduction in cases where it reduces register pressure, and also more aggressive about rewriting induction variables to count down (or up) to zero when doing so reduces register pressure. It currently uses fairly simplistic algorithms for finding reuse opportunities, but it introduces a new framework allows it to combine multiple strategies at once to form hybrid solutions, instead of doing all full-reduction or all base+index. llvm-svn: 94061
* Use opt -S instead of piping bitcode output through llvm-dis.Dan Gohman2009-09-081-1/+1
| | | | llvm-svn: 81257
* Change these tests to feed the assembly files to opt directly, insteadDan Gohman2009-09-081-1/+1
| | | | | | of using llvm-as, now that opt supports this. llvm-svn: 81226
* Generalize SCEVExpander::visitAddRecExpr's GEP persuit, and avoidDan Gohman2009-05-241-1/+1
| | | | | | | | | | | | | | | sending SCEVUnknowns to expandAddToGEP. This avoids the need for expandAddToGEP to bend the rules and peek into SCEVUnknown expressions. Factor out the code for testing whether a SCEV can be factored by a constant for use in a GEP index. This allows it to handle SCEVAddRecExprs, by recursing. As a result, SCEVExpander can now put more things in GEP indices, so it emits fewer explicit mul instructions. llvm-svn: 72366
* Fix a thinko in the code that adapted SCEVMulExpr operands forDan Gohman2009-05-221-0/+58
use in expanding SCEVAddExprs with GEPs. The operands of a SCEVMulExpr need to be multiplied together, not added. llvm-svn: 72250
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