Adrian Prantl 076fd5dfc1 Move the complex address expression out of DIVariable and into an extra ... argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218778 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-01 17:55:39 +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	Move the complex address expression out of DIVariable and into an extra	2014-10-01 17:55:39 +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	Move the complex address expression out of DIVariable and into an extra	2014-10-01 17:55:39 +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	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	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