Dan Gohman bd59d7b603 Implement more aggressive folding of add operand lists when ... they contain multiplications of constants with add operations. This helps simplify several kinds of things; in particular it helps simplify expressions like ((-1 * (%a + %b)) + %a) to %b, as expressions like this often come up in loop trip count computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73361 91177308-0d34-0410-b5e6-96231b3b80d8		2009-06-14 22:58:51 +00:00
..
2002-09-09-PointerIndVar.ll
2003-04-16-ExprAnalysis.ll
2003-09-12-MultiplePred.ll
2003-09-23-NotAtTop.ll	Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical	2009-06-13 16:25:49 +00:00
2003-12-10-IndVarDeadCode.ll
2003-12-10-RemoveInstrCrash.ll
2003-12-15-Crash.ll
2003-12-21-IndVarSize.ll
2004-03-10-PHIInsertionBug.ll
2004-04-05-InvokeCastCrash.ll
2004-04-07-ScalarEvolutionCrash.ll
2005-02-11-InvokeCrash.ll
2005-02-17-TruncateExprCrash.ll
2005-02-26-ExitValueCompute.ll
2005-06-15-InstMoveCrash.ll
2005-11-18-Crash.ll
2006-03-31-NegativeStride.ll
2006-06-16-Indvar-LCSSA-Crash.ll
2006-09-20-LFTR-Crash.ll
2006-12-10-BitCast.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
2007-01-06-TripCount.ll
2007-01-08-X86-64-Pointer.ll	Add nounwind to a few tests.	2009-05-18 15:16:49 +00:00
2007-06-06-DeleteDanglesPtr.ll
2007-11-23-BitcastCrash.ll
2008-06-15-SCEVExpanderBug.ll
2008-09-02-IVType.ll
2008-10-03-CouldNotCompute.ll
2008-11-03-Floating.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
2008-11-17-Floating.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
2008-11-25-APFloatAssert.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
2009-04-14-shorten_iv_vars.ll	Enhance induction variable code to remove the	2009-04-15 01:10:12 +00:00
2009-04-15-shorten-iv-vars-2.ll	Factor the code for collecting IV users out of LSR into an IVUsers class,	2009-05-12 02:17:14 +00:00
2009-04-22-IndvarCrash.ll	Make sure both operands have binary instructions have the same type.	2009-04-22 23:39:28 +00:00
2009-04-27-Floating.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
2009-05-24-useafterfree.ll	The rewriter may hold references to instructions that are deleted because they are trivially dead.	2009-05-24 14:23:16 +00:00
ada-loops.ll	Factor the code for collecting IV users out of LSR into an IVUsers class,	2009-05-12 02:17:14 +00:00
addrec-gep.ll	Generalize SCEVExpander::visitAddRecExpr's GEP persuit, and avoid	2009-05-24 18:06:31 +00:00
avoid-i0.ll	Handle ands with ~0 correctly too. This fixes PR4052.	2009-04-27 01:41:10 +00:00
casted-argument.ll	Fix an error in this test.	2009-04-23 15:22:28 +00:00
complex-scev.ll
dg.exp
divide-pointer.ll	In cases where a pointer value is an operand of a multiplication or	2009-05-26 17:41:16 +00:00
exit_value_tests.ll
gep-with-mul-base.ll	Generalize SCEVExpander::visitAddRecExpr's GEP persuit, and avoid	2009-05-24 18:06:31 +00:00
interesting-invoke-use.ll	Teach IndVarSimplify's FixUsesBeforeDefs to handle InvokeInsts by	2009-05-22 16:47:11 +00:00
iterationCount_zext_or_trunc.ll
iv-zext.ll	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
lftr_simple.ll
lftr-other-uses.ll	When rewriting the loop exit test with the canonical induction variable,	2009-05-24 19:11:38 +00:00
loop_evaluate_1.ll
loop_evaluate_2.ll
loop_evaluate_3.ll
loop_evaluate_4.ll
loop_evaluate_5.ll	When forgetting SCEVs for loop PHIs, don't forget SCEVUnknown values.	2009-05-12 01:27:58 +00:00
loop_evaluate_6.ll	Factor the code for collecting IV users out of LSR into an IVUsers class,	2009-05-12 02:17:14 +00:00
masked-iv.ll	Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical	2009-06-13 16:25:49 +00:00
pointer-indvars.ll
pointer.ll	Implement more aggressive folding of add operand lists when	2009-06-14 22:58:51 +00:00
preserve-gep-remainder.ll	Teach SCEVExpander to avoid creating over-indexed GEP indices when	2009-05-27 02:00:53 +00:00
preserve-gep.ll	Teach SCEVExpander to expand arithmetic involving pointers into GEP	2009-05-19 02:15:55 +00:00
preserve-signed-wrap.ll	Back out the change in 64918 that used sign-extensions when promoting	2009-02-23 23:20:35 +00:00
promote-iv-to-eliminate-casts.ll	Back out the change in 64918 that used sign-extensions when promoting	2009-02-23 23:20:35 +00:00
signed-trip-count.ll	Back out the change in 64918 that used sign-extensions when promoting	2009-02-23 23:20:35 +00:00
subtract.ll
tripcount_compute.ll
tripcount_infinite.ll
variable-stride-ivs-0.ll	Don't attempt to simplify an non-affine IV expression if it can't	2009-06-03 19:11:31 +00:00
variable-stride-ivs-1.ll	Don't attempt to simplify an non-affine IV expression if it can't	2009-06-03 19:11:31 +00:00