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74c8c2d903e2c849a2132ae798018f8bbe00ea21
clang-p2996/llvm/test/Transforms/IndVarSimplify
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Nikita Popov 74c8c2d903 Revert "Recommit "[SCEV] Use nw flag and symbolic iteration count to sharpen ranges of AddRecs"" 
This reverts commit 32b72c3165.

While better than before, this change still introduces a large
compile-time regression (>3% on mafft):
https://llvm-compile-time-tracker.com/compare.php?from=fbd62fe60fb2281ca33da35dc25ca3c87ec0bb51&to=32b72c3165bf65cca2e8e6197b59eb4c4b60392a&stat=instructions

Additionally, the logic here doesn't look quite right to me,
I will comment in more detail on the differential revision.
2020-10-16 21:36:33 +02:00
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AMDGPU
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ARM
[SCEV] Constant expansion cost at minsize
2020-09-10 08:21:11 +01:00
NVPTX
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X86
Revert "Recommit "[SCEV] Use nw flag and symbolic iteration count to sharpen ranges of AddRecs""
2020-10-16 21:36:33 +02:00
2002-09-09-PointerIndVar.ll
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2003-04-16-ExprAnalysis.ll
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2003-09-23-NotAtTop.ll
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2003-12-10-RemoveInstrCrash.ll
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2003-12-15-Crash.ll
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2004-03-10-PHIInsertionBug.ll
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2004-04-05-InvokeCastCrash.ll
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2004-04-07-ScalarEvolutionCrash.ll
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2005-02-11-InvokeCrash.ll
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2005-02-17-TruncateExprCrash.ll
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2005-02-26-ExitValueCompute.ll
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2005-06-15-InstMoveCrash.ll
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2005-11-18-Crash.ll
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2006-03-31-NegativeStride.ll
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2006-06-16-Indvar-LCSSA-Crash.ll
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2006-09-20-LFTR-Crash.ll
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2006-12-10-BitCast.ll
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2007-01-06-TripCount.ll
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2007-06-06-DeleteDanglesPtr.ll
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2007-11-23-BitcastCrash.ll
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2008-06-15-SCEVExpanderBug.ll
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2008-09-02-IVType.ll
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2008-10-03-CouldNotCompute.ll
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2008-11-25-APFloatAssert.ll
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2009-04-22-IndvarCrash.ll
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2009-04-27-Floating.ll
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2009-05-24-useafterfree.ll
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2011-09-10-widen-nsw.ll
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2011-09-19-vectoriv.ll
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2011-09-27-hoistsext.ll
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2011-10-27-lftrnull.ll
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2011-11-01-lftrptr.ll
[NFC][IndVars] Autogenerate check lines in tests being affected by upcoming patch
2020-10-15 23:15:04 +03:00
2011-11-17-selfphi.ll
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2012-10-19-congruent-constant.ll
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2014-06-21-congruent-constant.ll
[NewPM][LoopUnswitch] Pin loop-unswitch to legacy PM or use simple-loop-unswitch
2020-08-06 10:56:00 -07:00
ada-loops.ll
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addrec_no_exec_on_every_iteration.ll
Return "[SCEV] Prove implicaitons via AddRec start"
2020-10-08 11:15:35 +07:00
ashr-tripcount.ll
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avoid-i0.ll
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backedge-on-min-max.ll
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bec-cmp.ll
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canonicalize-cmp.ll
[Test] Auto-generated checks for some IndVarSimplify tests
2020-09-08 11:15:40 +07:00
casted-argument.ll
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checks_against_min_value.ll
[Test] Missing range check removal opportunity
2020-09-18 17:55:23 +07:00
const_phi.ll
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constant_result.ll
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constant-fold.ll
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crash.ll
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dangling-use.ll
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divide-pointer.ll
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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
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elim-extend.ll
[IndVars] Regenerate test checks (NFC)
2020-06-29 20:33:50 +02:00
eliminate-comparison.ll
[Test] Add test showing that we fail to eliminate implied exit conditions
2020-10-08 16:36:28 +07:00
eliminate-exit-no-dl.ll
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eliminate-exit.ll
[IndVars] Fix sort comparator.
2020-02-27 17:25:18 -08:00
eliminate-max.ll
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eliminate-overflow-modified.ll
[IndVarSimplify] Fix Modified status for removal of overflow intrinsics
2020-09-29 13:20:59 +02:00
eliminate-rem.ll
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eliminate-sat.ll
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exit_value_test2.ll
[SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model add/mul
2020-02-25 23:05:58 +03:00
exit_value_test3.ll
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exit_value_tests.ll
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floating-point-iv.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
full_widening.ll
[SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668)
2020-02-25 23:05:59 +03:00
indirectbr.ll
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infer-poison-flags.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
interesting-invoke-use.ll
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iterationCount_zext_or_trunc.ll
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iv-fold.ll
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iv-sext.ll
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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
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lcssa-preservation.ll
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lftr_disabled.ll
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lftr-address-space-pointers.ll
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lftr-dead-ivs.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
lftr-multi-exit.ll
[Test] Auto-generated checks for some IndVarSimplify tests
2020-09-08 11:15:40 +07:00
lftr-pr20680.ll
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lftr-pr31181.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
lftr-pr41998.ll
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lftr-promote.ll
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lftr-reuse.ll
[SCEV] SCEVExpander::isHighCostExpansionHelper(): cost-model min/max (PR44668)
2020-02-25 23:05:59 +03:00
lftr.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
loop_evaluate7.ll
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loop_evaluate8.ll
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loop_evaluate9.ll
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loop_evaluate11.ll
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loop_evaluate_1.ll
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loop_evaluate_2.ll
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loop_evaluate_3.ll
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loop_evaluate_4.ll
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loop_evaluate_5.ll
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loop_evaluate_6.ll
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loop-predication.ll
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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
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monotonic_checks.ll
[Test] More tests where IndVars fails to eliminate a range check
2020-09-08 14:43:29 +07:00
no-iv-rewrite.ll
[NFC] Run update script on test
2020-08-17 12:53:14 +01:00
phi-uses-value-multiple-times.ll
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post-inc-range.ll
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pr18223.ll
[Test] Auto-generated checks for some IndVarSimplify tests
2020-09-08 11:15:40 +07:00
pr22222.ll
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pr24783.ll
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pr24952.ll
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pr25060.ll
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pr25578.ll
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pr26974.ll
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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
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pr38674.ll
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pr38855.ll
[FunctionAttrs] Rename functionattrs -> function-attrs
2020-07-28 09:09:13 -07:00
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
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pr45835.ll
[IndVarSimplify][LoopUtils] Avoid TOCTOU/ordering issues (PR45835)
2020-05-21 13:05:55 +03:00
predicated_ranges.ll
[Test] Add tests where we can replace condition with invariants
2020-09-28 12:04:20 +07:00
preserve-memoryssa.ll
[IndVarSimplify] Fix for MemorySSA preserve.
2020-01-23 11:06:16 -08:00
preserve-signed-wrap.ll
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promote-iv-to-eliminate-casts.ll
Revert "Recommit "[SCEV] Use nw flag and symbolic iteration count to sharpen ranges of AddRecs""
2020-10-16 21:36:33 +02:00
replace-loop-exit-folds.ll
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replace-sdiv-by-udiv.ll
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replace-srem-by-urem.ll
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rewrite-loop-exit-value.ll
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rlev-add-me.ll
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scev-expander-preserve-lcssa.ll
[SCEV] Add additional tests.
2020-07-28 16:15:57 +01:00
scevexpander-phi-base-case.ll
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sentinel.ll
[Test] Add one more test on IndVars that was failing on one of older builds
2020-08-07 14:23:55 +07:00
sharpen-range.ll
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shrunk-constant.ll
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signed-trip-count.ll
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single-element-range.ll
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sink-alloca.ll
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sink-from-preheader.ll
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sink-trapping.ll
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strengthen-overflow.ll
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tripcount_compute.ll
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tripcount_infinite.ll
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trivial-checks.ll
[Test] Add tests showing that IndVars cannot prove (X + 1 > X)
2020-09-17 22:37:43 +07:00
udiv-invariant-but-traps.ll
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udiv.ll
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ult-sub-to-eq.ll
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use-range-metadata.ll
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variable-stride-ivs-0.ll
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widen-i32-i8ptr.ll
[NFC][IndVars] Autogenerate check lines in tests being affected by upcoming patch
2020-10-15 23:15:04 +03:00
widen-loop-comp.ll
[Test] Add one more test where we can avoid creating trunc
2020-10-07 15:06:38 +07:00
zext-nuw.ll
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