Andrew Trick c7b0b7dc8f Add support to indvars for optimizing sadd.with.overflow. ... Split sadd.with.overflow into add + sadd.with.overflow to allow analysis and optimization. This should ideally be done after InstCombine, which can perform code motion (eventually indvars should run after all canonical instcombines). We want ISEL to recombine the add and the check, at least on x86. This is currently under an option for reducing live induction variables: -liv-reduce. The next step is reducing liveness of IVs that are live out of the overflow check paths. Once the related optimizations are fully developed, reviewed and tested, I do expect this to become default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197926 91177308-0d34-0410-b5e6-96231b3b80d8		2013-12-23 23:31:49 +00:00
..
2002-09-09-PointerIndVar.ll
2003-04-16-ExprAnalysis.ll
2003-09-23-NotAtTop.ll	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID	2012-12-30 01:28:40 +00:00
2003-12-10-RemoveInstrCrash.ll
2003-12-15-Crash.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
2007-01-06-TripCount.ll
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
2008-11-25-APFloatAssert.ll
2009-04-14-shorten_iv_vars.ll
2009-04-15-shorten-iv-vars-2.ll
2009-04-22-IndvarCrash.ll
2009-04-27-Floating.ll
2009-05-24-useafterfree.ll
2011-09-10-widen-nsw.ll
2011-09-19-vectoriv.ll
2011-09-27-hoistsext.ll
2011-10-27-lftrnull.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-11-01-lftrptr.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2011-11-15-multiexit.ll
2011-11-17-selfphi.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2012-07-17-lftr-undef.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
2012-10-19-congruent-constant.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
ada-loops.ll
ashr-tripcount.ll
avoid-i0.ll
casted-argument.ll
crash.ll	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID	2012-12-30 02:33:22 +00:00
dangling-use.ll
divide-pointer.ll
dont-recompute.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
elim-extend.ll
eliminate-comparison.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
eliminate-max.ll
eliminate-rem.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
exit_value_tests.ll
floating-point-iv.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
indirectbr.ll
interesting-invoke-use.ll
iterationCount_zext_or_trunc.ll
iv-fold.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
iv-sext.ll
iv-zext.ll
lftr_simple.ll
lftr-address-space-pointers.ll	Teach loop-idiom about address space pointer sizes	2013-09-11 05:09:42 +00:00
lftr-extend-const.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
lftr-other-uses.ll
lftr-promote.ll
lftr-reuse.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
lftr-zext.ll	Fix a bug in LinearFunctionTestReplace that created invalid loop exit checks.	2013-10-24 05:29:56 +00:00
loop_evaluate7.ll
loop_evaluate8.ll
loop_evaluate9.ll
loop_evaluate10.ll
loop_evaluate11.ll
loop_evaluate_1.ll	Add test case for PR12377, it was fixed by r194116.	2013-11-06 11:55:41 +00:00
loop_evaluate_2.ll
loop_evaluate_3.ll
loop_evaluate_4.ll
loop_evaluate_5.ll
loop_evaluate_6.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
masked-iv.ll
no-iv-rewrite.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
overflowcheck.ll	Add support to indvars for optimizing sadd.with.overflow.	2013-12-23 23:31:49 +00:00
phi-uses-value-multiple-times.ll	Revert the test moves from 176733. Use "REQUIRES: asserts" instead.	2013-03-12 16:27:52 +00:00
polynomial-expand.ll
preserve-signed-wrap.ll
promote-iv-to-eliminate-casts.ll
shrunk-constant.ll
signed-trip-count.ll
single-element-range.ll
sink-alloca.ll
sink-trapping.ll
tripcount_compute.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
tripcount_infinite.ll
udiv-invariant-but-traps.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
udiv.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
uglygep.ll
ult-sub-to-eq.ll	Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.	2013-07-14 01:42:54 +00:00
variable-stride-ivs-0.ll
variable-stride-ivs-1.ll
verify-scev.ll
widen-nsw.ll	Teach indvars to generate nsw/nuw flags when widening an induction variable.	2013-07-14 02:50:07 +00:00