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llvm-mirror/test/Transforms/IndVarSimplify
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Roman Lebedev bcf124828a Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 
As discussed in post-commit review in https://reviews.llvm.org/D73501
if the goal of this is to help vectorizer, then we should actually
be teaching vectorizer to do this, because right now this rewrite
is still budget-limited, which isn't what we'd want.

Additionally, while the rest of the patch series was universally profitable,
this particular patch is reportedly (https://reviews.llvm.org/D73501#1905171)
exposing cost-modeling issues on ARM.

So let's just back this particular patch out. Once there's an undo transform,
this could be considered for reintegration.

This reverts commit 44edc6fd2c63b7db43e13cc8caf1fee79bebdb5f.
2020-04-03 20:15:04 +03:00
..
AMDGPU Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
ARM Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
NVPTX Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
X86 [NFC] Create X86 subdirectory for indvar tests 2020-03-26 12:24:45 +00:00
2002-09-09-PointerIndVar.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2003-04-16-ExprAnalysis.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2003-09-23-NotAtTop.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2003-12-10-RemoveInstrCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2003-12-15-Crash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2004-03-10-PHIInsertionBug.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2004-04-05-InvokeCastCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2004-04-07-ScalarEvolutionCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2005-02-11-InvokeCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2005-02-17-TruncateExprCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2005-02-26-ExitValueCompute.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2005-06-15-InstMoveCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2005-11-18-Crash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2006-03-31-NegativeStride.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2006-06-16-Indvar-LCSSA-Crash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2006-09-20-LFTR-Crash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2006-12-10-BitCast.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2007-01-06-TripCount.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2007-06-06-DeleteDanglesPtr.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2007-11-23-BitcastCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2008-06-15-SCEVExpanderBug.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2008-09-02-IVType.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2008-10-03-CouldNotCompute.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2008-11-25-APFloatAssert.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2009-04-22-IndvarCrash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2009-04-27-Floating.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2009-05-24-useafterfree.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2011-09-10-widen-nsw.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2011-09-19-vectoriv.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2011-09-27-hoistsext.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2011-10-27-lftrnull.ll Fix a bug w/inbounds invalidation in LFTR (recommit) 2019-06-17 20:32:22 +00:00
2011-11-01-lftrptr.ll [LFTR] Use SCEVExpander for the pointer limit case instead of manual IR gen 2019-07-03 20:03:46 +00:00
2011-11-17-selfphi.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2012-10-19-congruent-constant.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
2014-06-21-congruent-constant.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
ada-loops.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
ashr-tripcount.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
avoid-i0.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
backedge-on-min-max.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
bec-cmp.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
canonicalize-cmp.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
casted-argument.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
const_phi.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
constant_result.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
constant-fold.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
crash.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
dangling-use.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
divide-pointer.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
dont-recompute.ll Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
drop-exact.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
elim-extend.ll Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
eliminate-comparison.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668) 2020-02-25 23:05:59 +03:00
eliminate-exit-no-dl.ll [IndVars] Fix a subtle bug in optimizeLoopExits 2019-07-23 17:45:11 +00:00
eliminate-exit.ll [IndVars] Fix sort comparator. 2020-02-27 17:25:18 -08:00
eliminate-max.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
eliminate-rem.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
eliminate-sat.ll [SimplifyIndVar] Simplify non-overflowing saturating add/sub 2019-06-15 08:48:52 +00:00
exit_value_test2.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model add/mul 2020-02-25 23:05:58 +03:00
exit_value_test3.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
exit_value_tests.ll [LoopPred] Enable new transformation by default 2019-11-06 15:41:57 -08:00
floating-point-iv.ll [Tests] Add a few more tests for idioms with FP induction variables 2019-10-14 19:10:39 +00:00
full_widening.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668) 2020-02-25 23:05:59 +03:00
indirectbr.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
infer-poison-flags.ll [Tests] Add poison inference tests for indvars showing both existing transforms, and some room for improvement 2019-06-05 18:00:59 +00:00
interesting-invoke-use.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
iterationCount_zext_or_trunc.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
iv-fold.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
iv-sext.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
iv-widen-elim-ext.ll [IndVarSimplify] Extend previous special case for load use instruction to any narrow type loop variant to avoid extra trunc instruction 2020-03-05 16:27:59 -05:00
iv-zext.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
lcssa-preservation.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
lftr_disabled.ll [IndVarSimplify] Generate full checks for some LFTR tests; NFC 2019-04-20 12:05:53 +00:00
lftr-address-space-pointers.ll [LFTR] Use SCEVExpander for the pointer limit case instead of manual IR gen 2019-07-03 20:03:46 +00:00
lftr-dead-ivs.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
lftr-multi-exit.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668) 2020-02-25 23:05:59 +03:00
lftr-pr20680.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
lftr-pr31181.ll [IndVarSimplify] Fixup nowrap flags during LFTR (PR31181) 2019-06-01 09:40:18 +00:00
lftr-pr41998.ll [LFTR] Use SCEVExpander for the pointer limit case instead of manual IR gen 2019-07-03 20:03:46 +00:00
lftr-promote.ll [IndVarSimplify] Generate full checks for some LFTR tests; NFC 2019-04-20 12:05:53 +00:00
lftr-reuse.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668) 2020-02-25 23:05:59 +03:00
lftr.ll [SVEV] Recognise hardware-loop intrinsic loop.decrement.reg 2020-01-10 09:35:00 +00:00
loop_evaluate7.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate8.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate9.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate11.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate_1.ll [SimplifyCFG] FoldTwoEntryPHINode(): consider *total* speculation cost, not per-BB cost 2019-09-16 16:18:24 +00:00
loop_evaluate_2.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate_3.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate_4.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate_5.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop_evaluate_6.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
loop-predication.ll [IndVars] Eliminate loop exits with equivalent exit counts 2019-10-20 23:38:02 +00:00
lrev-existing-umin.ll Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
masked-iv.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
no-iv-rewrite.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
phi-uses-value-multiple-times.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
post-inc-range.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr18223.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr22222.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr24783.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr24952.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr25060.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr25578.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr26974.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr28705.ll Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
pr32045.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr38674.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
pr38855.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
pr39673.ll Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)" 2020-04-03 20:15:04 +03:00
pr40454.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
preserve-memoryssa.ll [IndVarSimplify] Fix for MemorySSA preserve. 2020-01-23 11:06:16 -08:00
preserve-signed-wrap.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
promote-iv-to-eliminate-casts.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
replace-loop-exit-folds.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
replace-sdiv-by-udiv.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
replace-srem-by-urem.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
rewrite-loop-exit-value.ll [IndVars] Extend reasoning about loop invariant exits to non-header blocks 2019-05-14 17:20:10 +00:00
rlev-add-me.ll [IndVars] Fix a bug noticed by inspection 2019-08-23 04:03:23 +00:00
scevexpander-phi-base-case.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
sharpen-range.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
shrunk-constant.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
signed-trip-count.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
single-element-range.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
sink-alloca.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
sink-from-preheader.ll [LoopPred] Selectively disable to preserve test cases 2019-11-06 15:41:57 -08:00
sink-trapping.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
strengthen-overflow.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
tripcount_compute.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
tripcount_infinite.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
udiv-invariant-but-traps.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
udiv.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
ult-sub-to-eq.ll [LFTR] Hoist extend expressions outside of loops w/o waiting for LICM 2019-07-03 18:18:36 +00:00
use-range-metadata.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
variable-stride-ivs-0.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00
widen-loop-comp.ll [SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668) 2020-02-25 23:05:59 +03:00
zext-nuw.ll Revert "Temporarily Revert "Add basic loop fusion pass."" 2019-04-17 04:52:47 +00:00