Roman Lebedev 19cfa09971 Reland [SCEV] Improve modelling for (null) pointer constants ... This reverts commit 329aeb5db43f5e69df038fb20d2def77fe6f8595, and relands commit 61f006ac655431bd44b9e089f74c73bec0c1a48c. This is a continuation of D89456. As it was suggested there, now that SCEV models `PtrToInt`, we can try to improve SCEV's pointer handling. In particular, i believe, i will need this in the future to further fix `SCEVAddExpr`operation type handling. This removes special handling of `ConstantPointerNull` from `ScalarEvolution::createSCEV()`, and add constant folding into `ScalarEvolution::getPtrToIntExpr()`. This way, `null` constants stay as such in SCEV's, but gracefully become zero integers when asked. Reviewed By: Meinersbur Differential Revision: https://reviews.llvm.org/D98147		2021-03-13 16:05:34 +03:00
..
AArch64	Mark FMOV constant materialization as being as cheap as a move.	2020-09-10 16:38:59 +00:00
AMDGPU	Reland [SCEV] Improve modelling for (null) pointer constants	2021-03-13 16:05:34 +03:00
ARM	Precommit tests that have poison as shufflevector's placeholder	2020-12-29 17:09:31 +09:00
NVPTX
Power	[PowerPC] implement target hook getTgtMemIntrinsic	2020-10-07 00:02:44 -04:00
X86	Reland [SCEV] Improve modelling for (null) pointer constants	2021-03-13 16:05:34 +03:00
2005-08-15-AddRecIV.ll
2005-08-17-OutOfLoopVariant.ll
2005-09-12-UsesOutOutsideOfLoop.ll
2007-04-23-UseIterator.ll
2008-08-13-CmpStride.ll
2008-09-09-Overflow.ll
2009-01-13-nonconstant-stride-outside-loop.ll
2009-04-28-no-reduce-mul.ll
2011-07-19-CritEdgeBreakCrash.ll
2011-10-03-CritEdgeMerge.ll	Reland [SCEV] Improve modelling for (null) pointer constants	2021-03-13 16:05:34 +03:00
2011-10-06-ReusePhi.ll
2011-10-13-SCEVChain.ll
2011-10-14-IntPtr.ll
2011-12-19-PostincQuadratic.ll
2012-01-02-nopreheader.ll
2012-01-16-nopreheader.ll
2012-03-15-nopreheader.ll
2012-03-26-constexpr.ll
2012-07-13-ExpandUDiv.ll
2012-07-18-LimitReassociate.ll
2013-01-05-IndBr.ll
2013-01-14-ReuseCast.ll
addrec-gep-address-space.ll
addrec-gep.ll
address-space-loop.ll
callbr-critical-edge-splitting2.ll	BreakCriticalEdges: do not split the critical edge from a CallBr indirect successor	2021-01-15 13:51:47 -08:00
callbr-critical-edge-splitting.ll	BreakCriticalEdges: do not split the critical edge from a CallBr indirect successor	2021-01-15 13:51:47 -08:00
count-to-zero.ll
dbg-preserve-0.ll	Reland [DebugInfo] Improve dbg preservation in LSR.	2020-12-14 16:15:18 +01:00
dbg-preserve-1.ll	[DebugInfo] Avoid LSR crash on large integer inputs	2021-01-05 10:25:37 +00:00
dead-phi.ll
different-type-ivs.ll
dominate-assert.ll
dont_insert_redundant_ops.ll
dont_reduce_bytes.ll
dont_reverse.ll
dont-hoist-simple-loop-constants.ll
ephemeral.ll
exit_compare_live_range.ll
funclet.ll	Revert D71539 "Recommit "[SCEV] Look through single value PHIs.""	2020-09-21 17:21:43 -07:00
gnarly-setupcost.ll
hoist-parent-preheader.ll
illegal-addr-modes.ll
invariant_value_first_arg.ll
invariant_value_first.ll
ivchain.ll
lsr-comp-time.ll
lsr-overflow.ll
missing-phi-operand-update.ll
multi-edge-latch.ll	[LSR] Add test for multi-edge latch (NFC)	2021-02-06 18:31:45 +01:00
negative-scale.ll
nested-reduce.ll
nonintegral.ll
nonlinear-postinc.ll
ops_after_indvar.ll
phi_node_update_multiple_preds.ll
post-inc-icmpzero.ll	Revert "Return "[SCEV] Use isBasicBlockEntryGuardedByCond in isLoopBackedgeGuardedByCond", 2nd try"	2020-11-26 18:12:51 +07:00
post-inc-optsize.ll
post-increment-insertion.ll	[LSR] Unify scheduling of existing and inserted addrecs	2021-03-03 12:07:55 -08:00
pr2537.ll
pr2570.ll
pr3086.ll	[test] Fix tests using -analyze that fail under NPM	2020-10-21 21:54:30 -07:00
pr3399.ll
pr3571.ll
pr12018.ll
pr12048.ll
pr12691.ll
pr18165.ll
pr25541.ll
pr27056.ll	[SCEVExpander] Avoid re-using existing casts if it means updating users.	2020-08-09 13:25:17 +01:00
pr31627.ll
pr48725.ll	[SCEV] Do not cache comparison result upon reached max depth as "equivalence". PR48725	2021-01-29 12:08:34 +07:00
preserve-gep-loop-variant.ll
related_indvars.ll
remove_indvar.ll
scaling_factor_cost_crash.ll
scev-after-loopinstsimplify.ll
scev-expander-lcssa.ll	[SCEV] Add additional tests.	2020-07-28 16:15:57 +01:00
scev-insertpt-bug.ll
sext-ind-var.ll
share_code_in_preheader.ll
share_ivs.ll
shl.ll
two-combinations-bug.ll
uglygep-address-space.ll
uglygep.ll
use_postinc_value_outside_loop.ll
var_stride_used_by_compare.ll
variable_stride.ll