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llvm-mirror/test/Transforms/IndVarSimplify
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Sjoerd Meijer 6cb7b580a7 [SVEV] Recognise hardware-loop intrinsic loop.decrement.reg 
Teach SCEV about the @loop.decrement.reg intrinsic, which has exactly the same
semantics as a sub expression. This allows us to query hardware-loops, which
contain this @loop.decrement.reg intrinsic, so that we can calculate iteration
counts, exit values, etc. of hardwareloops.

This "int_loop_decrement_reg" intrinsic is defined as "IntrNoDuplicate". Thus,
while hardware-loops and tripcounts now become analysable by SCEV, this
prevents the usual loop transformations from applying transformations on
hardware-loops, which is what we want at this point, for which I have added
test cases for loopunrolling and IndVarSimplify and LFTR.

Differential Revision: https://reviews.llvm.org/D71563
2020-01-10 09:35:00 +00:00
..
AMDGPU
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
NVPTX
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2002-09-09-PointerIndVar.ll
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2019-04-17 04:52:47 +00:00
2003-04-16-ExprAnalysis.ll
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2019-04-17 04:52:47 +00:00
2003-09-23-NotAtTop.ll
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2019-04-17 04:52:47 +00:00
2003-12-10-RemoveInstrCrash.ll
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2019-04-17 04:52:47 +00:00
2003-12-15-Crash.ll
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2019-04-17 04:52:47 +00:00
2004-03-10-PHIInsertionBug.ll
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2019-04-17 04:52:47 +00:00
2004-04-05-InvokeCastCrash.ll
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2019-04-17 04:52:47 +00:00
2004-04-07-ScalarEvolutionCrash.ll
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2019-04-17 04:52:47 +00:00
2005-02-11-InvokeCrash.ll
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2019-04-17 04:52:47 +00:00
2005-02-17-TruncateExprCrash.ll
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2019-04-17 04:52:47 +00:00
2005-02-26-ExitValueCompute.ll
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2019-04-17 04:52:47 +00:00
2005-06-15-InstMoveCrash.ll
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2019-04-17 04:52:47 +00:00
2005-11-18-Crash.ll
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2019-04-17 04:52:47 +00:00
2006-03-31-NegativeStride.ll
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2019-04-17 04:52:47 +00:00
2006-06-16-Indvar-LCSSA-Crash.ll
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2019-04-17 04:52:47 +00:00
2006-09-20-LFTR-Crash.ll
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2019-04-17 04:52:47 +00:00
2006-12-10-BitCast.ll
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2019-04-17 04:52:47 +00:00
2007-01-06-TripCount.ll
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2019-04-17 04:52:47 +00:00
2007-06-06-DeleteDanglesPtr.ll
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2019-04-17 04:52:47 +00:00
2007-11-23-BitcastCrash.ll
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2019-04-17 04:52:47 +00:00
2008-06-15-SCEVExpanderBug.ll
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2019-04-17 04:52:47 +00:00
2008-09-02-IVType.ll
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2019-04-17 04:52:47 +00:00
2008-10-03-CouldNotCompute.ll
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2019-04-17 04:52:47 +00:00
2008-11-25-APFloatAssert.ll
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2019-04-17 04:52:47 +00:00
2009-04-14-shorten_iv_vars.ll
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2019-04-17 04:52:47 +00:00
2009-04-15-shorten-iv-vars-2.ll
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2019-04-17 04:52:47 +00:00
2009-04-22-IndvarCrash.ll
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2019-04-17 04:52:47 +00:00
2009-04-27-Floating.ll
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2019-04-17 04:52:47 +00:00
2009-05-24-useafterfree.ll
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2019-04-17 04:52:47 +00:00
2011-09-10-widen-nsw.ll
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2019-04-17 04:52:47 +00:00
2011-09-19-vectoriv.ll
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2019-04-17 04:52:47 +00:00
2011-09-27-hoistsext.ll
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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
2011-11-15-multiexit.ll
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2019-04-17 04:52:47 +00:00
2011-11-17-selfphi.ll
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2019-04-17 04:52:47 +00:00
2012-10-19-congruent-constant.ll
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2019-04-17 04:52:47 +00:00
2014-06-21-congruent-constant.ll
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2019-04-17 04:52:47 +00:00
ada-loops.ll
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2019-04-17 04:52:47 +00:00
ashr-tripcount.ll
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2019-04-17 04:52:47 +00:00
avoid-i0.ll
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2019-04-17 04:52:47 +00:00
backedge-on-min-max.ll
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2019-04-17 04:52:47 +00:00
bec-cmp.ll
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2019-04-17 04:52:47 +00:00
canonicalize-cmp.ll
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2019-04-17 04:52:47 +00:00
casted-argument.ll
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2019-04-17 04:52:47 +00:00
const_phi.ll
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2019-04-17 04:52:47 +00:00
constant_result.ll
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2019-04-17 04:52:47 +00:00
constant-fold.ll
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2019-04-17 04:52:47 +00:00
crash.ll
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2019-04-17 04:52:47 +00:00
dangling-use.ll
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2019-04-17 04:52:47 +00:00
divide-pointer.ll
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2019-04-17 04:52:47 +00:00
dont-recompute.ll
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2019-04-17 04:52:47 +00:00
drop-exact.ll
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2019-04-17 04:52:47 +00:00
elim-extend.ll
[LFTR] Hoist extend expressions outside of loops w/o waiting for LICM
2019-07-03 18:18:36 +00:00
eliminate-comparison.ll
[IndVars] Remove dead instructions after folding trivial loop exit
2019-06-23 17:06:57 +00:00
eliminate-exit-no-dl.ll
[IndVars] Fix a subtle bug in optimizeLoopExits
2019-07-23 17:45:11 +00:00
eliminate-exit.ll
[IndVars] Eliminate loop exits with equivalent exit counts
2019-10-20 23:38:02 +00:00
eliminate-max.ll
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2019-04-17 04:52:47 +00:00
eliminate-rem.ll
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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
eliminate-trunc.ll
[LoopPred] Selectively disable to preserve test cases
2019-11-06 15:41:57 -08:00
exit_value_test2.ll
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2019-04-17 04:52:47 +00:00
exit_value_test3.ll
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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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
huge_muls.ll
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2019-04-17 04:52:47 +00:00
indirectbr.ll
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2019-04-17 04:52:47 +00:00
indvar-debug-value2.ll
[Debuginfo] dbg.value points to undef value after Induction Variable Simplification.
2019-09-24 08:47:03 +00:00
indvar-debug-value.ll
[Debuginfo] dbg.value points to undef value after Induction Variable Simplification.
2019-09-24 08:47:03 +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
inner-loop-by-latch-cond.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
inner-loop.ll
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2019-04-17 04:52:47 +00:00
interesting-invoke-use.ll
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2019-04-17 04:52:47 +00:00
iterationCount_zext_or_trunc.ll
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2019-04-17 04:52:47 +00:00
iv-fold.ll
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2019-04-17 04:52:47 +00:00
iv-sext.ll
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2019-04-17 04:52:47 +00:00
iv-widen-elim-ext.ll
[LFTR] Hoist extend expressions outside of loops w/o waiting for LICM
2019-07-03 18:18:36 +00:00
iv-widen.ll
[LFTR] Hoist extend expressions outside of loops w/o waiting for LICM
2019-07-03 18:18:36 +00:00
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
[Tests] Add a tricky LFTR case for documentation purposes
2019-06-20 17:16:53 +00:00
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
[LoopPred] Selectively disable to preserve test cases
2019-11-06 15:41:57 -08:00
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_evaluate10.ll
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2019-04-17 04:52:47 +00:00
loop_evaluate11.ll
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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
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2019-04-17 04:52:47 +00:00
loop_evaluate_4.ll
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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-invariant-conditions.ll
[LoopPred] Selectively disable to preserve test cases
2019-11-06 15:41:57 -08:00
loop-predication.ll
[IndVars] Eliminate loop exits with equivalent exit counts
2019-10-20 23:38:02 +00:00
lrev-existing-umin.ll
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2019-04-17 04:52:47 +00:00
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
overflow-intrinsics.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
phi-uses-value-multiple-times.ll
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2019-04-17 04:52:47 +00:00
polynomial-expand.ll
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2019-04-17 04:52:47 +00:00
post-inc-range.ll
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2019-04-17 04:52:47 +00:00
pr18223.ll
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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
pr24356.ll
[LoopPred] Selectively disable to preserve test cases
2019-11-06 15:41:57 -08:00
pr24783.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr24804.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
pr24956.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr25047.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr25051.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
pr25360.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr25421.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr25576.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
pr26973.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
pr27133.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr28935.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr32045.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr35406.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
[LoopPred] Selectively disable to preserve test cases
2019-11-06 15:41:57 -08:00
pr40454.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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-iv-with-loop-invariant.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
scev-phi-debug-info.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
scevexpander-phi-base-case.ll
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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
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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
uglygep.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
variable-stride-ivs-1.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
verify-scev.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
widen-loop-comp.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
widen-nsw.ll
Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351
2019-12-24 15:57:33 -08:00
zext-nuw.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00