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llvm-mirror/test/Transforms/Reassociate
Roman Lebedev d8e91e816b [Reassociate] Don't convert add-like-or's into add's if they appear to be part of load-combining idiom
As Wei Mi is reporting in post-commit review
  https://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20201116/853479.html
teaching -reassociate about add-like-or's (70472f3) results in breaking apart
load widening patterns, and reassociating them.

For now, simply exclude any such `or` that appears to be a root of
load widening idiom from the or->add transformation.

Note that the heuristic is greedy, it doesn't ensure that loads
can *actually* be widened into a single load.
2020-11-18 17:55:02 +03:00
..
2002-05-15-AgressiveSubMove.ll
2002-05-15-MissedTree.ll
2002-05-15-SubReassociate.ll [test] Rewrite various tests to not use constprop 2020-08-26 12:57:12 -07:00
2002-07-09-DominanceProblem.ll
2003-08-12-InfiniteLoop.ll
2005-09-01-ArrayOutOfBounds.ll
2006-04-27-ReassociateVector.ll
2011-01-26-UseAfterFree.ll
2012-05-08-UndefLeak.ll
2012-06-08-InfiniteLoop.ll
2019-08-22-FNegAssert.ll
absorption.ll
add_across_block_crash.ll
add-like-or.ll [Reassociate] Guard add-like or conversion into an add with profitability check 2020-11-04 16:10:34 +03:00
basictest.ll
binop-identity.ll
canonicalize-neg-const.ll
commute.ll
crash2.ll
crash.ll
cse-pairs.ll [EarlyCSE] Verify hash code in regression tests 2020-09-04 10:40:35 -04:00
deadcode.ll
erase_inst_made_change.ll [Reassociate][test] Delete improper -NOT patterns to work with -enable-new-pm=1 2020-10-28 23:59:11 -07:00
factorize-again.ll
fast-AgressiveSubMove.ll
fast-ArrayOutOfBounds.ll
fast-basictest.ll Remove BinaryOperator::CreateFNeg 2020-02-27 09:06:03 -08:00
fast-fp-commute.ll
fast-mightymul.ll
fast-MissedTree.ll
fast-multistep.ll
fast-ReassociateVector.ll
fast-SubReassociate.ll [test] Rewrite various tests to not use constprop 2020-08-26 12:57:12 -07:00
fp-commute.ll
fp-expr.ll Remove BinaryOperator::CreateFNeg 2020-02-27 09:06:03 -08:00
infloop-deadphi.ll
inverses.ll [DIE] Remove DeadInstEliminationPass 2020-09-21 12:12:25 -07:00
keep-debug-loc.ll Infer alignment of unmarked loads in IR/bitcode parsing. 2020-05-14 13:03:50 -07:00
load-combine-like-or.ll [Reassociate] Don't convert add-like-or's into add's if they appear to be part of load-combining idiom 2020-11-18 17:55:02 +03:00
long-chains.ll
looptest.ll
matching-binops.ll
mightymul.ll
min_int.ll
mixed-fast-nonfast-fp.ll
mulfactor.ll
multistep.ll
negation1.ll
negation.ll
no-op.ll
optional-flags.ll
otherops.ll [DIE] Remove DeadInstEliminationPass 2020-09-21 12:12:25 -07:00
pointer-collision-non-determinism.ll
pr12245.ll [BasicAA] Rename deprecated -basicaa to -basic-aa 2020-06-26 20:41:37 -07:00
pr21205.ll
pr28367.ll
pr42349.ll
propagate-flags.ll
reassoc-intermediate-fnegs.ll
reassociate_dbgvalue_discard.ll
reassociate_salvages_debug_info.ll [DBG][OPT] Attempt to salvage or undef debug info when removing trivially deletable instructions in the Reassociate Expression pass. 2019-11-12 15:17:04 +00:00
reassociate-catchswitch.ll
reassociate-deadinst.ll [Reassociate][test] Delete improper -NOT patterns to work with -enable-new-pm=1 2020-10-28 23:59:11 -07:00
reassociate-landingpad.ll Migrate function attribute "no-frame-pointer-elim-non-leaf" to "frame-pointer"="non-leaf" as cleanups after D56351 2019-12-24 16:05:15 -08:00
repeats.ll
secondary.ll
shift-factor.ll
shifttest.ll
subtest.ll
undef_intrinsics_when_deleting_instructions.ll [DBG][OPT] Attempt to salvage or undef debug info when removing trivially deletable instructions in the Reassociate Expression pass. 2019-11-12 15:17:04 +00:00
vaarg_movable.ll [DIE] Remove DeadInstEliminationPass 2020-09-21 12:12:25 -07:00
wrap-flags.ll [Reassociate] Teach ConvertShiftToMul to preserve nsw flag if the shift amount is not bitwidth - 1. 2020-06-04 14:51:34 -07:00
xor_reassoc.ll