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llvm-6502/test/Transforms/SimplifyCFG
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Sanjay Patel 80c193dec7 Fix for PR17073 ( http://llvm.org/pr17073 ), simplifycfg illegally hoists an operation in a phi node that can trap. 
This patch adds to an existing loop over phi nodes in SimplifyCondBranchToCondBranch() to check for trapping ops and bails out of the optimization if we find one of those.

The test cases verify that trapping ops are not hoisted and non-trapping ops are still optimized as expected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212490 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-07 21:19:00 +00:00
..
SPARC
Reduce verbiage of lit.local.cfg files
2014-06-09 22:42:55 +00:00
X86
Don't build switch tables for dllimport and TLS variables in GEPs
2014-06-26 00:30:52 +00:00
2002-05-21-PHIElimination.ll
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2002-09-24-PHIAssertion.ll
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2003-03-07-DominateProblem.ll
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2003-08-05-InvokeCrash.ll
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2003-08-17-BranchFold.ll
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2003-08-17-BranchFoldOrdering.ll
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2003-08-17-FoldSwitch-dbg.ll
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2003-08-17-FoldSwitch.ll
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2004-12-10-SimplifyCFGCrash.ll
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2005-06-16-PHICrash.ll
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2005-08-01-PHIUpdateFail.ll
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2005-10-02-InvokeSimplify.ll
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2005-12-03-IncorrectPHIFold.ll
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2006-02-17-InfiniteUnroll.ll
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2006-06-12-InfLoop.ll
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2006-08-03-Crash.ll
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2006-10-19-UncondDiv.ll
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2006-12-08-Ptr-ICmp-Branch.ll
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2007-11-22-InvokeNoUnwind.ll
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2007-12-21-Crash.ll
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2008-01-02-hoist-fp-add.ll
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2008-05-16-PHIBlockMerge.ll
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2008-07-13-InfLoopMiscompile.ll
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2008-09-08-MultiplePred.ll
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2008-09-17-SpeculativeHoist.ll
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2008-10-03-SpeculativelyExecuteBeforePHI.ll
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2008-12-06-SingleEntryPhi.ll
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2008-12-16-DCECond.ll
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2009-01-18-PHIPropCrash.ll
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2009-01-19-UnconditionalTrappingConstantExpr.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
2009-05-12-externweak.ll
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2010-03-30-InvokeCrash.ll
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2011-03-08-UnreachableUse.ll
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2011-09-05-TrivialLPad.ll
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attr-noduplicate.ll
SimplifyCFG: Don't duplicate calls to functions marked noduplicate v2
2013-10-21 20:07:30 +00:00
basictest.ll
Fix pr14893.
2014-01-28 16:56:46 +00:00
branch-cond-merge.ll
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branch-cond-prop.ll
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branch-fold-dbg.ll
Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields.
2013-09-06 21:03:58 +00:00
branch-fold-test.ll
Use opt -S instead of piping bitcode output through llvm-dis.
2009-09-08 22:34:10 +00:00
branch-fold.ll
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branch-phi-thread.ll
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BrUnwind.ll
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common-dest-folding.ll
FoldBranchToCommonDest merges branches into a single branch with or/and of the condition. It has a heuristics for estimating when some of the dependencies are processed by out-of-order processors. This patch adds another rule to the heuristics that says that if the "BonusInstruction" that we speculatively execute is used by the condition of the second branch then it is okay to hoist it. This change exposes more opportunities for other passes to transform the code. It does not matter that much that we if-convert the code because the selectiondag builder splits or/and branches into multiple branches when profitable.
2013-11-12 22:37:16 +00:00
CoveredLookupTable.ll
Teach simplify-cfg how to correctly create covered lookup tables for switches on iN with N >= 3.
2013-10-20 07:04:37 +00:00
dbginfo.ll
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dce-cond-after-folding-terminator.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
DeadSetCC.ll
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duplicate-phis.ll
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EmptyBlockMerge.ll
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EqualPHIEdgeBlockMerge.ll
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extract-cost.ll
Add ExtractValue instruction to SimplifyCFG's ComputeSpeculationCost
2014-05-09 17:02:46 +00:00
ForwardSwitchConditionToPHI.ll
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hoist-common-code.ll
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hoist-dbgvalue.ll
Debug Info: update testing cases to specify the debug info version number.
2013-11-23 01:16:29 +00:00
HoistCode.ll
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indirectbr.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
invoke_unwind.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
invoke.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
iterative-simplify.ll
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lifetime.ll
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MagicPointer.ll
Teach SimplifyCFG about address spaces
2013-10-21 18:55:08 +00:00
multiple-phis.ll
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no_speculative_loads_with_tsan.ll
Don't speculate loads under ThreadSanitizer
2013-11-21 07:29:28 +00:00
noreturn-call.ll
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phi-undef-loadstore.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
PhiBlockMerge2.ll
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PhiBlockMerge.ll
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PhiEliminate2.ll
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PhiEliminate3.ll
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PhiEliminate.ll
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PHINode.ll
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PhiNoEliminate.ll
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PR9946.ll
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PR16069.ll
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PR17073.ll
Fix for PR17073 ( http://llvm.org/pr17073 ), simplifycfg illegally hoists an operation in a phi node that can trap.
2014-07-07 21:19:00 +00:00
preserve-branchweights-partial.ll
Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change.
2013-07-14 01:50:49 +00:00
preserve-branchweights-switch-create.ll
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preserve-branchweights.ll
PGO branch weight: keep halving the weights until they can fit into
2014-01-27 23:39:03 +00:00
return-merge.ll
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select-gep.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
sink-common-code.ll
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speculate-math.ll
Allow speculating llvm.sqrt, fma and fmuladd
2014-01-31 00:09:00 +00:00
speculate-store.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +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
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
SpeculativeExec.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
switch_create.ll
Resolve TODO in test now that filecheck has multiple check prefixes.
2013-11-10 02:16:47 +00:00
switch_switch_fold.ll
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switch_thread.ll
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switch-masked-bits.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
switch-on-const-select.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
switch-simplify-crash.ll
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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
trap-debugloc.ll
Debug Info: update testing cases to specify the debug info version number.
2013-11-22 21:49:45 +00:00
trapping-load-unreachable.ll
IR: add a second ordering operand to cmpxhg for failure
2014-03-11 10:48:52 +00:00
trivial-throw.ll
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two-entry-phi-return.ll
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UncondBranchToReturn.ll
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unreachable-blocks.ll
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UnreachableEliminate.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
volatile-phioper.ll
Use function attributes to indicate that we don't want to realign the stack.
2013-08-01 21:42:05 +00:00