Nikita Popov 2d756c4feb [LFTR] Fix post-inc pointer IV with truncated exit count (PR41998) ... Fixes https://bugs.llvm.org/show_bug.cgi?id=41998. Usually when we have a truncated exit count we'll truncate the IV when comparing against the limit, in which case exit count overflow in post-inc form doesn't matter. However, for pointer IVs we don't do that, so we have to be careful about incrementing the IV in the wide type. I'm fixing this by removing the IVCount variable (which was ExitCount or ExitCount+1) and replacing it with a UsePostInc flag, and then moving the actual limit adjustment to the individual cases (which are: pointer IV where we add to the wide type, integer IV where we add to the narrow type, and constant integer IV where we add to the wide type). Differential Revision: https://reviews.llvm.org/D63686 llvm-svn: 364709		2019-06-29 09:24:12 +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	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
2009-04-14-shorten_iv_vars.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
2009-04-15-shorten-iv-vars-2.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] Fix post-inc pointer IV with truncated exit count (PR41998)	2019-06-29 09:24:12 +00:00
2011-11-15-multiexit.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +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-fold.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
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 "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
drop-exact.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
elim-extend.ll	[LFTR] Use recomputed BE count	2019-06-10 19:18:53 +00:00
eliminate-comparison.ll	[IndVars] Remove dead instructions after folding trivial loop exit	2019-06-23 17:06:57 +00:00
eliminate-exit.ll	[Tests] Add cases where we're failing to discharge provably loop exits (tests for D63733)	2019-06-24 19:26:17 +00:00
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
eliminate-trunc.ll	[IndVars] Remove dead instructions after folding trivial loop exit	2019-06-23 17:06:57 +00:00
exit_value_test2.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
exit_value_test3.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
exit_value_tests.ll	Teach getSCEVAtScope how to handle loop phis w/invariant operands in loops w/taken backedges	2019-06-17 21:06:17 +00:00
floating-point-iv.ll	[Tests] Autogen and improve test readability	2019-06-23 17:13:53 +00:00
full_widening.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
huge_muls.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
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
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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
iv-widen.ll	[Tests] Autogen a test so future changes are visible	2019-06-04 17:29:55 +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-address-space-pointers.ll	[Tests] Autogen a few lftr test in preparation for merging	2019-05-16 20:15:25 +00:00
lftr-dead-ivs.ll	Fix a bug w/inbounds invalidation in LFTR (recommit)	2019-06-17 20:32:22 +00:00
lftr-multi-exit.ll	[Tests] Add a tricky LFTR case for documentation purposes	2019-06-20 17:16:53 +00:00
lftr-pr31181.ll	[IndVarSimplify] Fixup nowrap flags during LFTR (PR31181)	2019-06-01 09:40:18 +00:00
lftr-pr41998.ll	[LFTR] Fix post-inc pointer IV with truncated exit count (PR41998)	2019-06-29 09:24:12 +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	[IndVarSimplify] Generate full checks for some LFTR tests; NFC	2019-04-20 12:05:53 +00:00
lftr.ll	Fix a bug w/inbounds invalidation in LFTR (recommit)	2019-06-17 20:32:22 +00:00
lftr_disabled.ll	[IndVarSimplify] Generate full checks for some LFTR tests; NFC	2019-04-20 12:05:53 +00:00
loop-invariant-conditions.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +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	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	[SCEV] Pass NoWrapFlags when expanding an AddExpr	2019-06-14 09:19:41 +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
lrev-existing-umin.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
polynomial-expand.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
pr20680.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
pr24356.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
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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
pr38855.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
pr39673.ll	Teach getSCEVAtScope how to handle loop phis w/invariant operands in loops w/taken backedges	2019-06-17 21:06:17 +00:00
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	[SCEV] Add explicit representations of umin/smin	2019-05-07 15:28:47 +00:00
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
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	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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
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	[Tests] Autogen tests so that diffs for a future change are understandable	2019-06-04 16:15:19 +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	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00
zext-nuw.ll	Revert "Temporarily Revert "Add basic loop fusion pass.""	2019-04-17 04:52:47 +00:00