Duncan Sands 447d97b223 TryToSimplifyUncondBranchFromEmptyBlock was checking that any common ...

predecessors of the two blocks it is attempting to merge supply the
same incoming values to any phi in the successor block.  This change
allows merging in the case where there is one or more incoming values
that are undef.  The undef values are rewritten to match the non-undef
value that flows from the other edge.  Patch by Mark Lacey.

llvm-svn: 186069

2013-07-11 08:28:20 +00:00

..

SPARC

Use TargetTransformInfo to control switch-to-lookup table transformation

2012-10-30 11:23:25 +00:00

X86

Fix logic to determine whether to turn a switch into a lookup table. When

2012-11-30 02:02:42 +00:00

2002-05-21-PHIElimination.ll

…

2002-09-24-PHIAssertion.ll

…

2003-03-07-DominateProblem.ll

…

2003-08-05-InvokeCrash.ll

Update tests to new EH model. Add landingpad instructions to landing pads.

2011-08-29 20:39:23 +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

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

Update tests to new EH model. Add landingpad instructions to landing pads.

2011-08-29 20:39:23 +00:00

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

Improve the bail-out predicate to really only kick in when phi

2011-04-26 17:41:02 +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

…

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

Convert all tests using TCL-style quoting to use shell-style quoting.

2012-07-02 12:47:22 +00:00

2008-07-13-InfLoopMiscompile.ll

Convert all tests using TCL-style quoting to use shell-style quoting.

2012-07-02 12:47:22 +00:00

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

Fix SpeculativelyExecuteBB to either speculate all or none of the phis

2012-01-05 23:58:56 +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

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

Delete trivial landing pads that just continue unwinding the caught

2011-09-05 12:57:57 +00:00

basictest.ll

Re-apply r124518 with fix. Watch out for invalidated iterator.

2011-01-29 04:46:23 +00:00

branch-cond-merge.ll

…

branch-cond-prop.ll

…

branch-fold-dbg.ll

Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID

2012-12-30 01:28:40 +00:00

branch-fold-test.ll

…

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

Fix the remaining TCL-style quotes found in the testsuite. This is

2012-07-02 19:09:46 +00:00

BrUnwind.ll

Fix the remaining TCL-style quotes found in the testsuite. This is

2012-07-02 19:09:46 +00:00

dbginfo.ll

…

dce-cond-after-folding-terminator.ll

Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior.

2011-05-22 16:24:18 +00:00

DeadSetCC.ll

Fix the remaining TCL-style quotes found in the testsuite. This is

2012-07-02 19:09:46 +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

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

ForwardSwitchConditionToPHI.ll

Fix PR10103: Less code for enum type translation.

2011-06-18 10:28:47 +00:00

hoist-common-code.ll

…

hoist-dbgvalue.ll

While hoisting common code from if/else, hoist debug info intrinsics if they match.

2011-04-07 17:27:36 +00:00

HoistCode.ll

…

indirectbr.ll

If the block that we're threading through is jumped to by an indirect branch,

2011-06-04 09:42:04 +00:00

invoke_unwind.ll

Replace more uses of 'unwind' in the tests with calls to landingpad and

2011-09-19 22:11:35 +00:00

invoke.ll

fix PR13339 (remove the predecessor from the unwind BB when removing an invoke)

2012-07-16 22:49:40 +00:00

iterative-simplify.ll

…

lifetime.ll

Add r134057 back, but splice the predecessor after the successors phi

2011-06-30 20:14:24 +00:00

lit.local.cfg

Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.

2012-02-16 06:28:33 +00:00

MagicPointer.ll

Re-apply r124518 with fix. Watch out for invalidated iterator.

2011-01-29 04:46:23 +00:00

multiple-phis.ll

Fix SpeculativelyExecuteBB to either speculate all or none of the phis

2012-01-05 23:58:56 +00:00

noreturn-call.ll

…

phi-undef-loadstore.ll

SimplifyCFG: Enhance the "remove CFG edge that leads to null pointer dereference" optimization to also handle instructions with multiple uses.

2012-10-04 16:11:49 +00:00

PhiBlockMerge2.ll

…

PhiBlockMerge.ll

SimplifyCFG: Add CostRemaining parameter to DominatesMergePoint

2011-04-29 18:47:31 +00:00

PhiEliminate2.ll

SimplifyCFG: Add Trunc, ZExt and SExt to the list of cheap instructions for phi node folding

2011-04-29 18:47:25 +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

…

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

preserve-branchweights-partial.ll

Remove an incorrect assert during branch weight propagation.

2012-09-08 00:07:26 +00:00

preserve-branchweights-switch-create.ll

PGO: preserve branch-weight metadata when merging two switches where

2012-09-14 17:29:56 +00:00

preserve-branchweights.ll

PGO: preserve branch-weight metadata when simplifying Switch to a sub, an icmp

2012-09-18 00:47:33 +00:00

return-merge.ll

…

select-gep.ll

Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID

2012-12-30 01:28:40 +00:00

sink-common-code.ll

SimplifyCFG: sink common codes from IF, ELSE blocks down to END block.

2012-09-20 22:37:36 +00:00

speculate-store.ll

SimplifyCFG: If convert single conditional stores

2013-04-29 21:28:24 +00:00

speculate-with-offset.ll

Factor out Instruction::isSafeToSpeculativelyExecute's code for

2010-11-11 21:23:25 +00:00

SpeculativeExec.ll

Re-revert r173342, without losing the compile time improvements, flat

2013-01-27 06:42:03 +00:00

switch_create.ll

SimplifyCFG: Teach switch generation some patterns that instcombine forms.

2013-07-04 14:22:02 +00:00

switch_switch_fold.ll

…

switch_thread.ll

Fix the remaining TCL-style quotes found in the testsuite. This is

2012-07-02 19:09:46 +00:00

switch-masked-bits.ll

Fix SpeculativelyExecuteBB to either speculate all or none of the phis

2012-01-05 23:58:56 +00:00

switch-on-const-select.ll

Use references to attribute groups on the call/invoke instructions.

2013-02-22 09:09:42 +00:00

switch-simplify-crash.ll

…

switch-to-icmp.ll

simplifycfg: Fix integer overflow converting switch into icmp.

2013-04-16 08:35:36 +00:00

trap-debugloc.ll

Simplify cfg inserts a call to trap when unreachable code is detected. Assign DebugLoc to this new trap instruction.

2011-04-27 17:59:27 +00:00

trapping-load-unreachable.ll

Update SimplifyCFG for atomic operations.

2011-08-15 23:59:28 +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

Fix the remaining TCL-style quotes found in the testsuite. This is

2012-07-02 19:09:46 +00:00

unreachable-blocks.ll

Make Value::isDereferenceablePointer() handle unreachable code blocks. (This

2012-01-23 00:05:17 +00:00

UnreachableEliminate.ll

PR9450: Make switch optimization in SimplifyCFG not dependent on the ordering

2011-03-15 02:23:35 +00:00

volatile-phioper.ll

SimplifyCFG fix for volatile load/store.

2013-03-07 01:03:35 +00:00