Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString"" ... This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-03 20:01:09 +00:00
..
SPARC	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
X86	[SimplifyCFG] fix accessing deleted PHINodes in switch-to-table conversion.	2014-08-02 23:41:54 +00:00
2002-05-21-PHIElimination.ll
2002-09-24-PHIAssertion.ll
2003-03-07-DominateProblem.ll
2003-08-05-InvokeCrash.ll
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	Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.	2013-04-09 05:18:53 +00:00
2003-08-17-FoldSwitch.ll	Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.	2013-04-09 05:18:53 +00:00
2004-12-10-SimplifyCFGCrash.ll
2005-06-16-PHICrash.ll
2005-08-01-PHIUpdateFail.ll
2005-10-02-InvokeSimplify.ll
2005-12-03-IncorrectPHIFold.ll	Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.	2013-04-09 05:18:53 +00:00
2006-02-17-InfiniteUnroll.ll
2006-06-12-InfLoop.ll
2006-08-03-Crash.ll
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
2007-11-22-InvokeNoUnwind.ll	Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.	2013-04-09 05:18:53 +00:00
2007-12-21-Crash.ll
2008-01-02-hoist-fp-add.ll	Converted 8x tests of SimplifyCFG to use FileCheck instead of grep.	2013-04-09 05:18:53 +00:00
2008-05-16-PHIBlockMerge.ll
2008-07-13-InfLoopMiscompile.ll
2008-09-08-MultiplePred.ll
2008-09-17-SpeculativeHoist.ll
2008-10-03-SpeculativelyExecuteBeforePHI.ll
2008-12-06-SingleEntryPhi.ll
2008-12-16-DCECond.ll
2009-01-18-PHIPropCrash.ll
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
2010-03-30-InvokeCrash.ll	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID	2013-01-01 13:57:25 +00:00
2011-03-08-UnreachableUse.ll
2011-09-05-TrivialLPad.ll
assume.ll	Add @llvm.assume, lowering, and some basic properties	2014-07-25 21:13:35 +00:00
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
branch-cond-prop.ll
branch-fold-dbg.ll	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
branch-fold-test.ll
branch-fold-threshold.ll	[SimplifyCFG] threshold for folding branches with common destination	2014-09-30 22:23:38 +00:00
branch-fold.ll
branch-phi-thread.ll
BrUnwind.ll
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
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
duplicate-phis.ll
EmptyBlockMerge.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
EqualPHIEdgeBlockMerge.ll	TryToSimplifyUncondBranchFromEmptyBlock was checking that any common	2013-07-11 08:28:20 +00:00
extract-cost.ll	Add ExtractValue instruction to SimplifyCFG's ComputeSpeculationCost	2014-05-09 17:02:46 +00:00
ForwardSwitchConditionToPHI.ll
hoist-common-code.ll
hoist-dbgvalue.ll	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
hoist-with-range.ll	Add a test for hoisting instructions with metadata out of then/else blocks	2014-09-09 17:10:21 +00:00
HoistCode.ll
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
lifetime.ll	SimplifyCFG: Avoid miscompilations due to removed lifetime intrinsics.	2014-07-30 21:04:00 +00:00
MagicPointer.ll	Teach SimplifyCFG about address spaces	2013-10-21 18:55:08 +00:00
multiple-phis.ll
no_speculative_loads_with_tsan.ll	Don't speculate loads under ThreadSanitizer	2013-11-21 07:29:28 +00:00
noreturn-call.ll
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
PhiBlockMerge.ll
PhiEliminate2.ll
PhiEliminate3.ll
PhiEliminate.ll
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
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	Second part of pr16069	2013-06-04 14:11:59 +00:00
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
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
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
speculate-math.ll	Make fabs safe to speculatively execute	2014-08-29 16:01:17 +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
switch_thread.ll
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
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	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +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	Don't remove a landing pad if the invoke requires a table entry.	2013-03-11 20:53:00 +00:00
two-entry-phi-return.ll
UncondBranchToReturn.ll
unreachable-blocks.ll
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