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llvm/test/Transforms/SimplifyCFG
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Philip Reames 3972070749 [SimplifyCFG] Fix a cost modeling oversight in branch commoning 
The cost modeling was not accounting for the fact we were duplicating the instruction once per predecessor.  With a default threshold of 1, this meant we were actually creating #pred copies.

Adding to the fun, there is *absolutely no* test coverage for this.  Simply bailing for more than one predecessor passes all checked in tests.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341001 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-30 00:03:02 +00:00
..
AArch64
[SimplifyCFG] Rewrite SinkThenElseCodeToEnd
2016-08-22 19:07:15 +00:00
AMDGPU
AMDGPU: Remove -mcpu=SI
2017-08-07 18:30:35 +00:00
ARM
[SimplifyCFG] use pass options and remove the latesimplifycfg pass
2017-10-28 18:43:07 +00:00
Hexagon
[Hexagon] Remove trailing spaces, NFC
2017-11-22 20:43:00 +00:00
Mips
[MIPS] add overrides for isCheapToSpeculateCttz() and isCheapToSpeculateCtlz()
2015-11-11 17:24:56 +00:00
PowerPC
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
RISCV
[RISCV] Implement isTruncateFree
2018-04-26 13:37:00 +00:00
SPARC
Reduce verbiage of lit.local.cfg files
2014-06-09 22:42:55 +00:00
X86
Revert r321377, it causes regression to https://reviews.llvm.org/P8055.
2017-12-28 17:02:34 +00:00
2002-05-21-PHIElimination.ll
…
2002-09-24-PHIAssertion.ll
…
2003-03-07-DominateProblem.ll
…
2003-08-05-InvokeCrash.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
2003-08-17-BranchFold.ll
Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.
2013-04-09 05:18:53 +00:00
2003-08-17-BranchFoldOrdering.ll
Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.
2013-04-09 05:18:53 +00:00
2003-08-17-FoldSwitch-dbg.ll
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator
2015-03-13 18:20:45 +00:00
2003-08-17-FoldSwitch.ll
regenerate checks
2016-03-28 22:12:21 +00:00
2004-12-10-SimplifyCFGCrash.ll
…
2005-06-16-PHICrash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2005-08-01-PHIUpdateFail.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
2005-10-02-InvokeSimplify.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
2005-12-03-IncorrectPHIFold.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2006-02-17-InfiniteUnroll.ll
…
2006-06-12-InfLoop.ll
…
2006-08-03-Crash.ll
[PPC] Remove Darwin support from POWER backend.
2018-08-28 01:18:29 +00:00
2006-10-19-UncondDiv.ll
Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.
2013-04-09 05:18:53 +00:00
2006-12-08-Ptr-ICmp-Branch.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2007-11-22-InvokeNoUnwind.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
2007-12-21-Crash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
2008-01-02-hoist-fp-add.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2008-05-16-PHIBlockMerge.ll
[SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops
2016-03-29 04:08:57 +00:00
2008-07-13-InfLoopMiscompile.ll
remove the metadata added with r267827
2016-04-30 00:02:36 +00:00
2008-09-08-MultiplePred.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2008-09-17-SpeculativeHoist.ll
…
2008-10-03-SpeculativelyExecuteBeforePHI.ll
…
2008-12-06-SingleEntryPhi.ll
…
2008-12-16-DCECond.ll
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
2009-01-18-PHIPropCrash.ll
…
2009-05-12-externweak.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2010-03-30-InvokeCrash.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
2011-03-08-UnreachableUse.ll
PR9420; an instruction before an unreachable is guaranteed not to have any
2011-03-09 00:48:33 +00:00
2011-09-05-TrivialLPad.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
assume.ll
Add @llvm.assume, lowering, and some basic properties
2014-07-25 21:13:35 +00:00
attr-convergent.ll
[SimplifyCFG] Don't fold conditional branches that contain calls to convergent functions.
2016-02-12 21:01:36 +00:00
attr-noduplicate.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
basictest.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
branch-cond-merge.ll
…
branch-cond-prop.ll
…
branch-fold-dbg.ll
Remove the obsolete offset parameter from @llvm.dbg.value
2017-07-28 20:21:02 +00:00
branch-fold-test.ll
…
branch-fold-threshold.ll
[SimplifyCFG] Fix a cost modeling oversight in branch commoning
2018-08-30 00:03:02 +00:00
branch-fold.ll
Remove dyn_cast + dereference pattern by replacing it with a cast and changing
2012-06-24 10:15:42 +00:00
branch-phi-thread.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
BrUnwind.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
bug-25299.ll
[SimplifyCFG] Extend SimplifyResume to handle phi of trivial landing pad.
2016-01-10 05:48:01 +00:00
clamp.ll
[SimplifyCFG] Add test for r229099
2015-02-13 11:08:40 +00:00
combine-parallel-mem-md.ll
[SimplifyCFG] Preserve !llvm.mem.parallel_loop_access when merging
2016-04-26 02:06:06 +00:00
common-dest-folding.ll
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
ConditionalTrappingConstantExpr.ll
[Constant] remove fdiv and frem from canTrap()
2016-08-29 15:27:17 +00:00
CoveredLookupTable.ll
[SimplifyCFG] use pass options and remove the latesimplifycfg pass
2017-10-28 18:43:07 +00:00
critedge-assume.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
dbginfo.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
dce-cond-after-folding-terminator.ll
Revert "Simplify blockaddress usage before giving up in MergeBlockIntoPredecessor"
2018-06-18 23:20:08 +00:00
DeadSetCC.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
div-rem-pairs.ll
[SimplifyCFG] update test comments; NFC
2017-09-12 23:28:11 +00:00
duplicate-landingpad.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
duplicate-phis.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
empty-catchpad.ll
[WinEH] Simplify unreachable catchpads
2016-01-05 02:37:41 +00:00
empty-cleanuppad.ll
Add address space mangling to lifetime intrinsics
2017-04-10 20:18:21 +00:00
EmptyBlockMerge.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
EqualPHIEdgeBlockMerge.ll
[SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops
2016-03-29 04:08:57 +00:00
extract-cost.ll
Add ExtractValue instruction to SimplifyCFG's ComputeSpeculationCost
2014-05-09 17:02:46 +00:00
fold-branch-debuginvariant.ll
[SimplifyCFG] Fix a debug invariant bug in FoldBranchToCommonDest()
2018-05-18 08:52:15 +00:00
fold-debug-info.ll
[SimplifyCFG] Fix a crash when folding PHIs.
2018-05-08 23:28:15 +00:00
ForwardSwitchConditionToPHI.ll
[SimplifyCFG] use pass options and remove the latesimplifycfg pass
2017-10-28 18:43:07 +00:00
gepcost.ll
[TTI] Fix getGEPCost() for geps with a single operand.
2017-09-01 19:54:08 +00:00
guards.ll
[SimplifyCFG] Regenerate some test cases using update_test_checks.py to prepare for an upcoming commit. NFC
2017-10-31 19:03:49 +00:00
hoist-common-code.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
hoist-dbgvalue-inlined.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
hoist-dbgvalue.ll
Remove the obsolete offset parameter from @llvm.dbg.value
2017-07-28 20:21:02 +00:00
hoist-with-range.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
HoistCode.ll
…
implied-and-or.ll
[ValueTracking] Support icmps fed by 'and' and 'or'.
2017-07-06 20:00:25 +00:00
implied-cond-matching-false-dest.ll
[ValueTracking] Improve isImpliedCondition when the dominating cond is false.
2016-04-25 17:23:36 +00:00
implied-cond-matching-imm.ll
[ValueTracking] Improve isImpliedCondition for matching LHS and Imm RHSs.
2016-05-05 15:39:18 +00:00
implied-cond-matching.ll
Fix typo from r267432.
2016-04-25 18:20:27 +00:00
implied-cond.ll
[SimplifyCFG] Constant fold a branch implied by it's incoming edge
2015-10-29 03:11:49 +00:00
indirectbr.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
InfLoop.ll
[SimplifyCFG] Fix for "endless" loop after dead code removal (Alternative to
2016-02-03 23:54:25 +00:00
inline-asm-sink.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
invoke_unwind.ll
[SimplifyCFG] Extend SimplifyResume to handle phi of trivial landing pad.
2016-01-10 05:48:01 +00:00
invoke.ll
llvm: Add support for "-fno-delete-null-pointer-checks"
2018-07-09 22:27:23 +00:00
iterative-simplify.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
lifetime.ll
Add address space mangling to lifetime intrinsics
2017-04-10 20:18:21 +00:00
MagicPointer.ll
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator
2015-03-13 18:20:45 +00:00
merge-cleanuppads.ll
[SimplifyCFG] Merge together cleanuppads
2016-02-20 01:07:45 +00:00
merge-cond-stores-2.ll
[SimplifyCFG] When merging conditional stores, don't count the store we're merging against the PHINodeFoldingThreshold
2017-11-03 21:08:13 +00:00
merge-cond-stores.ll
[NFC] Fixed build, updated tests
2018-08-12 18:32:53 +00:00
multiple-phis.ll
[SimplifyCFG] Regenerate some test cases using update_test_checks.py to prepare for an upcoming commit. NFC
2017-10-31 19:03:49 +00:00
no_speculative_loads_with_asan.ll
Hardware-assisted AddressSanitizer (llvm part).
2017-12-09 00:21:41 +00:00
no_speculative_loads_with_tsan.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
no-md-sink.ll
[SimplifyCFG] don't sink common insts too soon (PR34603)
2017-12-14 22:05:20 +00:00
noreturn-call.ll
…
opt-for-fuzzing.ll
[SimplifyCFG] Create attribute for fuzzing-specific optimizations.
2018-03-22 17:07:51 +00:00
phi-undef-loadstore.ll
llvm: Add support for "-fno-delete-null-pointer-checks"
2018-07-09 22:27:23 +00:00
PhiBlockMerge2.ll
…
PhiBlockMerge.ll
regenerate checks
2016-03-28 22:12:21 +00:00
PhiEliminate2.ll
propagate 'unpredictable' metadata on select instructions
2016-03-17 15:30:52 +00:00
PhiEliminate3.ll
SimplifyCFG: Expose phi node folding cost threshold as command line parameter
2011-04-29 18:47:38 +00:00
PhiEliminate.ll
- Insert new instructions before DomBlock's terminator,
2010-12-14 08:46:09 +00:00
PHINode.ll
Filecheckized 2x tests in SimplifyCFG and removed their date prefix to fit with current llvm style for test names.
2013-01-31 01:04:23 +00:00
PhiNoEliminate.ll
…
pr33605.ll
[SimplifyCFG] Defer folding unconditional branches to LateSimplifyCFG if it can destroy canonical loop structure.
2017-07-19 08:53:34 +00:00
pr34131.ll
[SimplifyCFG] remove checks for crasher test from r310481
2017-08-09 18:56:26 +00:00
pr35774.ll
[SimplifyCFG] Stop hoisting musttail calls incorrectly.
2017-12-31 16:47:16 +00:00
PR9946.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2013-01-01 13:57:25 +00:00
PR16069.ll
regenerate checks
2016-03-28 22:12:21 +00:00
PR17073.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
PR25267.ll
[SimplifyCFG] Don't use-after-free an SSA value
2015-10-21 18:22:24 +00:00
PR27615-simplify-cond-br.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
PR29163.ll
[SimplifyCFG] Hoisting invalidates metadata
2016-08-29 17:14:08 +00:00
PR30210.ll
Add a test for r280191
2016-09-16 02:43:36 +00:00
preserve-branchweights-partial.ll
IR: Make metadata typeless in assembly
2014-12-15 19:07:53 +00:00
preserve-branchweights-switch-create.ll
IR: Make metadata typeless in assembly
2014-12-15 19:07:53 +00:00
preserve-branchweights.ll
Follow-up patch of http://reviews.llvm.org/D19948 to handle missing profiles when simplifying CFG.
2016-05-18 22:41:03 +00:00
preserve-llvm-loop-metadata.ll
[SimplifyCFG] use pass options and remove the latesimplifycfg pass
2017-10-28 18:43:07 +00:00
preserve-load-metadata-2.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
preserve-load-metadata-3.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
preserve-load-metadata.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
preserve-make-implicit-on-switch-to-br.ll
[ConstantFoldTerminator] Preserve make.implicit metadata when converting SwitchInst to BranchInst
2015-08-07 19:30:12 +00:00
preserve-store-alignment.ll
[SimplifyCFG] Fix for PR34219: Preserve alignment after merging conditional stores.
2017-08-29 20:06:24 +00:00
rangereduce.ll
[SimplifyCFG] use pass options and remove the latesimplifycfg pass
2017-10-28 18:43:07 +00:00
remove-debug-2.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
remove-debug.ll
[DebugInfo] Create merged locations for instructions other than calls
2018-04-12 20:58:24 +00:00
return-merge.ll
…
seh-nounwind.ll
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
select-gep.ll
[SimplifyCFG] Regenerate some test cases using update_test_checks.py to prepare for an upcoming commit. NFC
2017-10-31 19:03:49 +00:00
sink-common-code.ll
[SimplifyCFG] don't sink common insts too soon (PR34603)
2017-12-14 22:05:20 +00:00
speculate-call.ll
[ValueTracking] Teach isSafeToSpeculativelyExecute() about the speculatable attribute
2017-04-28 21:13:09 +00:00
speculate-dbgvalue.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
speculate-math.ll
Revert "Revert "[SimplifyCFG] allow speculation of exactly one expensive instruction (PR24818)""
2016-01-27 02:59:41 +00:00
speculate-store.ll
[SimplifyCFG] propagate branch metadata when creating select (PR26636)
2016-03-26 23:30:50 +00:00
speculate-vector-ops.ll
Make bitcast, extractelement, and insertelement considered cheap for speculation.
2014-05-30 18:34:43 +00:00
speculate-with-offset.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
SpeculativeExec.ll
[SimplifyCFG] Regenerate some test cases using update_test_checks.py to prepare for an upcoming commit. NFC
2017-10-31 19:03:49 +00:00
statepoint-invoke-unwind.ll
[gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type
2015-12-26 07:54:32 +00:00
suppress-zero-branch-weights.ll
[SimplifyCFG] Fix a test case.
2017-11-09 23:17:52 +00:00
switch_create-custom-dl.ll
Adding a width of the GEP index to the Data Layout.
2018-02-14 06:58:08 +00:00
switch_create.ll
opt: Rename -default-data-layout flag to -data-layout and make it always override the layout.
2017-02-17 17:36:52 +00:00
switch_switch_fold.ll
use FileCheck for tighter checking
2016-03-16 23:39:37 +00:00
switch_thread.ll
reduce check strings; no need to check IR comments
2016-03-16 23:22:01 +00:00
switch_undef.ll
Bail out of a SimplifyCFG switch table opt at undef values.
2017-12-05 14:14:00 +00:00
switch-dead-default.ll
Revert @llvm.assume with operator bundles (r289755-r289757)
2016-12-19 08:22:17 +00:00
switch-masked-bits.ll
[SimplifyCFG] eliminate switch cases based on known range of switch condition
2016-05-20 14:53:09 +00:00
switch-on-const-select.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
switch-range-to-icmp.ll
SimplifyCFG: don't remove unreachable default switch destinations
2015-01-26 19:52:32 +00:00
switch-simplify-crash.ll
…
switch-to-br.ll
Add some tests for SimplifyCFG's ConstantFoldTerminator(). NFC.
2014-12-04 22:19:25 +00:00
switch-to-icmp.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
switch-to-select-multiple-edge-per-block-phi.ll
[SimplifyCFG] auto-generate better checks; NFC
2016-11-25 21:12:39 +00:00
switch-to-select-two-case.ll
[SimplifyCFG] auto-generate better checks; NFC
2016-11-25 21:12:39 +00:00
trap-debugloc.ll
Revert "[SimplifyCFG] Stop inserting calls to llvm.trap for UB"
2016-06-25 08:19:55 +00:00
trap-no-null-opt-debugloc.ll
llvm: Add support for "-fno-delete-null-pointer-checks"
2018-07-09 22:27:23 +00:00
trapping-load-unreachable.ll
llvm: Add support for "-fno-delete-null-pointer-checks"
2018-07-09 22:27:23 +00:00
two-entry-phi-return.ll
[SimplifyCFG] propagate branch metadata when creating select (PR27344)
2016-04-15 15:32:12 +00:00
UncondBranchToHeader.ll
[SimplifyCFG] Re-apply Relax restriction for folding unconditional branches
2018-02-08 07:16:29 +00:00
UncondBranchToReturn.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
unreachable-blocks.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
unreachable-cleanuppad.ll
[SimplifyCFG] Do not blindly remove unreachable blocks
2016-02-24 10:02:16 +00:00
UnreachableEliminate.ll
llvm: Add support for "-fno-delete-null-pointer-checks"
2018-07-09 22:27:23 +00:00
volatile-phioper.ll
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
wineh-unreachable.ll
[SimplifyCFG] Further improve our ability to remove redundant catchpads
2016-01-05 07:42:17 +00:00