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chenglin.bi 00871e2f4f [SimplifyCFG] Try to fold switch with single result value and power-of-2 cases to mask+select 
When switch with 2^n cases go to one result, check if the 2^n cases can be covered by n bit masks.
If yes we can use "and condition, ~mask" to simplify the switch

case 0 2 4 6 -> and condition, -7
https://alive2.llvm.org/ce/z/jjH_0N

case 0 2 8 10 -> and condition, -11
https://alive2.llvm.org/ce/z/K7E-2V

case 2 4 8 12 -> and (sub condition, 2), -11
https://alive2.llvm.org/ce/z/CrxbYg

Fix one case of https://github.com/llvm/llvm-project/issues/39957

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D122485
2022-04-15 00:10:00 +08:00
..
AArch64
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
AMDGPU
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
ARM
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
Hexagon
[SimplifyCFG] SwitchToLookupTable(): don't increase ret count
2021-07-26 23:29:55 +03:00
Mips
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
PowerPC
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
RISCV
[SimplifyCFG] Enable switch to lookup table for more types.
2021-08-03 15:35:16 -07:00
SPARC
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
X86
Reapply "[Intrinsics] Add nocallback to the default intrinsic attributes"
2022-03-25 09:36:50 -05:00
1elt-ptr-vec-alignment-crash.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
2002-05-21-PHIElimination.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2002-09-24-PHIAssertion.ll
…
2003-03-07-DominateProblem.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2003-08-05-InvokeCrash.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2003-08-17-BranchFold.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2003-08-17-BranchFoldOrdering.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2003-08-17-FoldSwitch-dbg.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2003-08-17-FoldSwitch.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
2004-12-10-SimplifyCFGCrash.ll
[SimplifyCFG] Teach FoldCondBranchOnPHI() to preserve DomTree
2020-12-30 00:48:11 +03:00
2005-06-16-PHICrash.ll
[SimplifyCFG] Teach SimplifyEqualityComparisonWithOnlyPredecessor() to preserve DomTree, part 1
2020-12-30 00:48:10 +03:00
2005-08-01-PHIUpdateFail.ll
[SimplifyCFG] Teach FoldValueComparisonIntoPredecessors() to preserve DomTree, part 1
2021-01-01 03:25:22 +03:00
2005-10-02-InvokeSimplify.ll
[SimplifyCFG] Teach mergeEmptyReturnBlocks() to preserve DomTree
2020-12-17 01:03:50 +03:00
2005-12-03-IncorrectPHIFold.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2006-02-17-InfiniteUnroll.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2006-06-12-InfLoop.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2006-08-03-Crash.ll
[SimplifyCFG] Teach FoldValueComparisonIntoPredecessors() to preserve DomTree, part 1
2021-01-01 03:25:22 +03:00
2006-10-19-UncondDiv.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2006-12-08-Ptr-ICmp-Branch.ll
[SimplifyCFG] Teach FoldBranchToCommonDest() to preserve DomTree, part 1
2020-12-20 00:18:36 +03:00
2007-11-22-InvokeNoUnwind.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2007-12-21-Crash.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2008-01-02-hoist-fp-add.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
2008-05-16-PHIBlockMerge.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
2008-07-13-InfLoopMiscompile.ll
[SimplifyCFG] Teach SimplifyCondBranchToCondBranch() to preserve DomTree
2020-12-30 00:48:12 +03:00
2008-09-08-MultiplePred.ll
[SimplifyCFG] Teach SimplifyCondBranchToTwoReturns() to preserve DomTree, part 1
2020-12-20 00:18:35 +03:00
2008-09-17-SpeculativeHoist.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
2008-10-03-SpeculativelyExecuteBeforePHI.ll
…
2008-12-06-SingleEntryPhi.ll
[SimplifyCFG] DeleteDeadBlock() already knows how to preserve DomTree
2020-12-18 00:37:21 +03:00
2008-12-16-DCECond.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
2009-01-18-PHIPropCrash.ll
[SimplifyCFG] DeleteDeadBlock() already knows how to preserve DomTree
2020-12-18 00:37:21 +03:00
2009-05-12-externweak.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
2011-03-08-UnreachableUse.ll
[SimplifyCFG] ConstantFoldTerminator() already knows how to preserve DomTree
2020-12-18 00:37:22 +03:00
2011-09-05-TrivialLPad.ll
[SimplifyCFG] Teach simplifySingleResume() to preserve DomTree
2020-12-20 00:18:34 +03:00
annotations.ll
Reland "[SimplifyCFG] Update FoldBranchToCommonDest to be poison-safe"
2021-03-23 09:19:53 +09:00
assume.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
attr-convergent.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
attr-noduplicate.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
basictest.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
bbi-23595.ll
Revert "[SimplifyCFG] Start redesigning FoldTwoEntryPHINode()."
2022-02-03 12:32:50 +03:00
branch-cond-merge.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
branch-cond-prop.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
branch-fold-dbg.ll
[Test] Regenerate checks using auto-update script
2021-10-28 15:13:43 +07:00
branch-fold-test.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
branch-fold-three.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
branch-fold-threshold.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
branch-fold.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
branch-phi-thread.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
BrUnwind.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
callbr-destinations.ll
[llvm][test] rewrite callbr to use i rather than X constraint NFC
2022-01-11 11:31:08 -08:00
change-to-unreachable-matching-successor.ll
[NFC][SimplifyCFG] Add a test with an undef cond branch to identical destinations
2021-01-08 02:15:26 +03:00
clamp.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
cleanup-phis.ll
[SimplifyCFG] Use make_early_inc_range() while deleting instructions
2021-05-26 11:43:11 -07:00
common-code-hoisting.ll
[SimplifyCFG] Allow hoisting terminators only with HoistCommonInsts=false.
2021-04-13 10:33:35 +01:00
common-dest-folding.ll
Reland "[SimplifyCFG] Update FoldBranchToCommonDest to be poison-safe"
2021-03-23 09:19:53 +09:00
commondest-loopid.ll
[SimplifyCFG] Preserve metadata when unconditionalizing branches (same target).
2021-04-26 17:23:01 -05:00
ConditionalTrappingConstantExpr.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
constantexprs.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
convergent.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
dbginfo.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
dce-cond-after-folding-terminator.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
DeadSetCC.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
debug-info-thread-phi.ll
[SimplifyCFG] Teach FoldCondBranchOnPHI() to preserve DomTree
2020-12-30 00:48:11 +03:00
div-rem-pairs.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
drop-debug-loc-when-speculating.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
duplicate-landingpad.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
duplicate-phis.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
empty-catchpad.ll
[NFC][SimplifyCFG] Autogenerate checklines in a few tests
2021-07-02 22:35:24 +03:00
EmptyBlockMerge.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
EqualPHIEdgeBlockMerge.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
extract-cost.ll
[SimplifyCFG] SimplifyCondBranchToTwoReturns(): really only deal with different ret blocks
2021-07-23 00:36:59 +03:00
fold-branch-to-common-dest-free-cost.ll
[SimplifyCFG] Ignore free instructions when computing cost for folding branch to common dest
2021-09-22 09:52:37 -07:00
fold-branch-to-common-dest-two-preds-cost.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
fold-branch-to-common-dest.ll
[SimplifyCFG] FoldBranchToCommonDest(): allow branch-on-select
2022-03-25 16:12:17 +03:00
fold-debug-info.ll
[SimplifyCFG] Teach SimplifyCondBranchToTwoReturns() to preserve DomTree, part 2
2020-12-20 00:18:36 +03:00
fold-debug-location.ll
Reland "[SimplifyCFG] Update FoldBranchToCommonDest to be poison-safe"
2021-03-23 09:19:53 +09:00
fold-two-entry-phi-node-with-one-block-profmd.ll
[SimplifyCFG] Don't speculatively execute BB[s] if they are predictably not taken
2021-07-26 02:55:15 +03:00
fold-two-entry-phi-node-with-two-blocks-profmd.ll
[SimplifyCFG] Don't speculatively execute BB[s] if they are predictably not taken
2021-07-26 02:55:15 +03:00
FoldValueComparisonIntoPredecessors-domtree-preservation-edgecase-2.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
FoldValueComparisonIntoPredecessors-domtree-preservation-edgecase.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
FoldValueComparisonIntoPredecessors-no-new-successors.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
ForwardSwitchConditionToPHI.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
gepcost.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
guards.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
hoist-common-code.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
hoist-dbgvalue-inlined.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
hoist-dbgvalue.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
hoist-from-addresstaken-block.ll
[SimplifyCFG] FoldTwoEntryPHINode(): don't fold if either block has it's address taken
2021-06-20 12:37:14 +03:00
hoist-with-range.ll
[SimplifyCFG] Teach HoistThenElseCodeToIf() to preserve DomTree
2020-12-30 00:48:10 +03:00
HoistCode.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
implied-and-or.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
implied-cond-matching-false-dest.ll
[SimplifyCFG] ConstantFoldTerminator() already knows how to preserve DomTree
2020-12-18 00:37:22 +03:00
implied-cond-matching-imm.ll
[SimplifyCFG] Teach SimplifyEqualityComparisonWithOnlyPredecessor() to preserve DomTree, part 2
2020-12-30 00:48:10 +03:00
implied-cond-matching.ll
[SimplifyCFG] ConstantFoldTerminator() already knows how to preserve DomTree
2020-12-18 00:37:22 +03:00
implied-cond.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
indirectbr.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
InfLoop.ll
[SimplifyCFG] Teach SimplifyEqualityComparisonWithOnlyPredecessor() to preserve DomTree, part 2
2020-12-30 00:48:10 +03:00
inline-asm-sink.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
invoke_unwind_lifetime.ll
[SimplifyCFG] Teach simplifyCommonResume() to preserve DomTree
2020-12-20 00:18:34 +03:00
invoke_unwind.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
invoke.ll
Reland [SimplifyCFG] markAliveBlocks(): recognize that normal dest of invoked noreturn function is unreachable
2022-02-05 02:58:19 +03:00
iterative-simplify.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
lifetime-landingpad.ll
[SimplifyCFG] Teach simplifySingleResume() to preserve DomTree
2020-12-20 00:18:34 +03:00
lifetime.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
merge-cond-stores-2.ll
Revert "[SimplifyCFG] Start redesigning FoldTwoEntryPHINode()."
2022-02-03 12:32:50 +03:00
merge-cond-stores.ll
Reland "[InstCombine] Add simplification of two logical and/ors"
2021-03-23 16:24:50 +09:00
merge-default.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
merge-deopt-bundle-constants.ll
[Test] Add test demonstating how deopt bundle constants may be merged into instruction
2022-02-15 20:28:41 +07:00
merge-duplicate-conditional-ret-val.ll
[SimplifyCFG] Drop support for duplicating ret's into uncond predecessors
2021-07-26 23:29:21 +03:00
merge-empty-return-blocks.ll
[SimplifyCFG] Teach mergeEmptyReturnBlocks() to preserve DomTree
2020-12-17 01:03:50 +03:00
multiple-phis.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
no_speculative_loads_with_asan.ll
[NFC][SimplifyCFG] Autogenerate check lines in few more tests
2021-04-28 00:35:44 +03:00
no_speculative_loads_with_tsan.ll
[NFC][SimplifyCFG] Autogenerate check lines in few more tests
2021-04-28 00:35:44 +03:00
no-md-sink.ll
Revert "[SimplifyCFG] Start redesigning FoldTwoEntryPHINode()."
2022-02-03 12:32:50 +03:00
nomerge.ll
[NFC][Tests][SimplifyCFG] Trim whitespaces at the end of lines
2020-12-16 00:38:00 +03:00
noreturn-call.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
opaque-ptr.ll
[SimplifyCFG][OpaquePtr] Check store type when merging conditional store
2022-02-20 11:29:54 -08:00
opt-for-fuzzing.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
phi-to-select-constexpr-icmp.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
phi-undef-loadstore.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
PhiBlockMerge2.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
PhiBlockMerge.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
PhiEliminate2.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
PhiEliminate3.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
PhiEliminate.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
PHINode.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
PhiNoEliminate.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
poison-merge.ll
[SimplifyCFG] avoid illegal phi with both poison and undef
2021-02-27 09:10:32 -05:00
pr33605.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
pr34131.ll
[SimplifyCFG] Teach SimplifyCondBranchToCondBranch() to preserve DomTree
2020-12-30 00:48:12 +03:00
pr35774.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
pr39807.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
pr46638.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
pr48641.ll
[NFC] Added testcase for PR48641
2021-09-04 10:44:39 +02:00
pr48778-sdiv-speculation.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
pr50060-constantfold-loopid.ll
Revert "[NFC] remove explicit default value for strboolattr attribute in tests"
2021-05-24 19:43:40 +02:00
pr52290.ll
[Test] Add test for PR52290
2021-10-25 18:25:59 +07:00
PR9946.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
PR16069.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
PR17073.ll
[SimplifyCFG] SimplifyCondBranchToTwoReturns(): really only deal with different ret blocks
2021-07-23 00:36:59 +03:00
PR25267.ll
[SimplifyCFG] DeleteDeadBlock() already knows how to preserve DomTree
2020-12-18 00:37:21 +03:00
PR27615-simplify-cond-br.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
preserve-branchweights-partial.ll
[SimplifyCFG] Teach FoldValueComparisonIntoPredecessors() to preserve DomTree, part 1
2021-01-01 03:25:22 +03:00
preserve-branchweights-switch-create.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
preserve-branchweights.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
preserve-llvm-loop-metadata.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
preserve-load-metadata-2.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
preserve-load-metadata-3.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
preserve-load-metadata.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
preserve-make-implicit-on-switch-to-br.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
preserve-store-alignment.ll
Revert "[SimplifyCFG] Start redesigning FoldTwoEntryPHINode()."
2022-02-03 12:32:50 +03:00
rangereduce.ll
[SimplifyCFG] Enable switch to lookup table for more types.
2021-08-03 15:35:16 -07:00
return-merge.ll
[SimplifyCFG] Drop support for duplicating ret's into uncond predecessors
2021-07-26 23:29:21 +03:00
safe-abs.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
seh-nounwind.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
select-gep.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
signbit-like-value-extension.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
SimplifyEqualityComparisonWithOnlyPredecessor-domtree-preservation-edgecase.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
SimplifyTerminatorOnSelect-domtree-preservation-edgecase.ll
[SimplifyCFG] SimplifyTerminatorOnSelect(): fix/tune DomTree updates
2021-01-04 01:02:02 +03:00
simplifyUnreachable-degenerate-conditional-branch-with-matching-destinations.ll
[SimplifyCFG] simplifyUnreachable(): erase instructions iff they are guaranteed to transfer execution to unreachable
2021-07-03 10:45:44 +03:00
sink-inf-loop.ll
[SimplifyCFG] avoid sinking insts within an infinite-loop
2021-03-12 08:04:57 -05:00
speculate-call.ll
Strip undef implying attributes when moving calls
2021-07-27 10:57:05 -04:00
speculate-dbgvalue.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
speculate-math.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
speculate-store-opaque-pointer.ll
[OpaquePtr] Forbid mixing typed and opaque pointers
2021-09-10 15:18:23 +02:00
speculate-store.ll
[OpaquePtr] Forbid mixing typed and opaque pointers
2021-09-10 15:18:23 +02:00
speculate-vector-ops-inseltpoison.ll
Precommit transform tests that have poison as insertelement's placeholder
2020-12-24 11:46:17 +09:00
speculate-vector-ops.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
speculate-with-offset.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
speculatively-execute-block-profmd.ll
[SimplifyCFG] Don't speculatively execute BB if it's predictably not taken
2021-07-26 02:55:14 +03:00
statepoint-invoke-unwind.ll
[Statepoint] Update gc.statepoint calls in tests with elementtype (NFC)
2022-02-04 14:15:41 +01:00
suppress-zero-branch-weights.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
switch_create-custom-dl.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
switch_create.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
switch_msan.ll
[SimplifyCFG] Fix SimplifyBranchOnICmpChain to be undef/poison safe.
2021-07-13 15:35:18 +09:00
switch_switch_fold.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
switch_thread.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
switch_ub.ll
[SimplifyCFG] Redirect switch cases that lead to UB into an unreachable block
2021-09-21 10:45:19 +07:00
switch_undef.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
switch-dead-default.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
switch-masked-bits.ll
[NFCI-ish][SimplifyCFGPass] Rework and generalize ret block tail-merging
2021-06-23 14:33:18 +03:00
switch-on-const-select.ll
[SimplifyCFG] Tail-merging all blocks with ret terminator
2021-06-24 13:15:39 +03:00
switch-profmd.ll
[SimplifyCFG] Teach simplifyUnreachable() to preserve DomTree
2020-12-18 00:37:22 +03:00
switch-range-to-icmp.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
switch-simplify-crash.ll
[SimplifyCFG] Teach eliminateDeadSwitchCases() to preserve DomTree, part 1
2021-01-01 03:25:24 +03:00
switch-to-br.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
switch-to-icmp.ll
[SimplifyCFG][PhaseOrdering] Defer lowering switch into an integer range comparison and branch until after at least the IPSCCP
2022-02-17 12:13:55 +03:00
switch-to-select-multiple-edge-per-block-phi.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
switch-to-select-two-case.ll
[SimplifyCFG] Try to fold switch with single result value and power-of-2 cases to mask+select
2022-04-15 00:10:00 +08:00
switchToSelect-domtree-preservation-edgecase.ll
[SimplifyCFG] switchToSelect(): don't forget to insert DomTree edge iff needed
2021-01-15 23:35:57 +03:00
tail-merge-assert.ll
[NFC][SimplifyCFG] Precommit SimplifyCFG tests from D29428
2021-04-28 00:35:44 +03:00
tail-merge-noreturn.ll
[NFC][SimplifyCFG] Precommit SimplifyCFG tests from D29428
2021-04-28 00:35:44 +03:00
tail-merge-resume.ll
[SimplifyCFG] Tail-merging all blocks with resume terminator
2021-06-24 21:25:06 +03:00
tautological-conditional-branch.ll
[SimplifyCFG] Preserve knowledge about guarding condition by adding assume
2021-09-08 14:05:17 +07:00
trap-debugloc.ll
[Local] Do not introduce a new llvm.trap before unreachable
2021-07-26 23:33:36 -05:00
trap-no-null-opt-debugloc.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
trapping-load-unreachable.ll
[Local] Do not introduce a new llvm.trap before unreachable
2021-07-26 23:33:36 -05:00
two-entry-phi-fold-crash.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
two-entry-phi-node.ll
[SimplifyCFG] FoldTwoEntryPHINode(): bailout on inverted logical and/or (PR51149)
2021-07-22 22:19:34 +03:00
two-entry-phi-return.ll
[SimplifyCFG] avoid crash on degenerate loop
2021-06-11 09:37:06 -04:00
UncondBranchToHeader.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
UncondBranchToReturn.ll
[NFC][SimplifyCFG] Fix tests to use FileCheck instead of grep
2021-06-21 23:56:54 +03:00
undef_phi.ll
[Test] Add test showing missing simplifycfg opportunity for Phi with undef inputs
2021-10-28 11:23:07 +07:00
unprofitable-pr.ll
[CodeMetrics] Don't require speculatability for ephemeral values
2021-10-21 20:30:01 +02:00
unreachable_assume.ll
[SimplifyCFG] Teach simplifyUnreachable() to preserve DomTree
2020-12-18 00:37:22 +03:00
unreachable-cleanuppad.ll
[SimplifyCFG] TryToSimplifyUncondBranchFromEmptyBlock() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
unreachable-matching-successor.ll
[NFC][SimplifyCFG] Add test with an unreachable block with two identical successors
2021-01-08 02:15:25 +03:00
unreachable-selfloop.ll
[SimplifyCFG] removeUnreachableBlocks() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
UnreachableEliminate.ll
Revert "[SimplifyCFG] Start redesigning FoldTwoEntryPHINode()."
2022-02-03 12:32:50 +03:00
unsigned-multiplication-will-overflow.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
volatile-phioper.ll
[NFC][SimplifyCFG] Autogenerate check lines in many test files
2021-04-27 22:05:42 +03:00
wc-widen-block.ll
[NewPM] Consistently use 'simplifycfg' rather than 'simplify-cfg'
2021-07-09 09:47:03 +02:00
wineh-unreachable.ll
[NFC][SimplifyCFG] Autogenerate checklines in a few tests
2021-07-02 22:35:24 +03:00