Duncan Sands 5f28475b30 Fix PR8445: a block with no predecessors may be the entry block, in which case ... it isn't unreachable and should not be zapped. The check for the entry block was missing in one case: a block containing a unwind instruction. While there, do some small cleanups: "M" is not a great name for a Function* (it would be more appropriate for a Module*), change it to "Fn"; use Fn in more places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117224 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-24 12:23:30 +00:00
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2002-05-05-EmptyBlockMerge.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2002-05-21-PHIElimination.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2002-06-24-PHINode.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
2002-09-24-PHIAssertion.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-03-07-DominateProblem.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-08-05-InvokeCrash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-08-05-MishandleInvoke.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-08-17-BranchFold.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-08-17-BranchFoldOrdering.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2003-08-17-FoldSwitch-dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
2003-08-17-FoldSwitch.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2004-12-10-SimplifyCFGCrash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2005-06-16-PHICrash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2005-08-01-PHIUpdateFail.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2005-08-03-PHIFactorCrash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2005-10-02-InvokeSimplify.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2005-12-03-IncorrectPHIFold.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-02-17-InfiniteUnroll.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-06-12-InfLoop.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-08-03-Crash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-10-19-UncondDiv.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-10-29-InvokeCrash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2006-12-08-Ptr-ICmp-Branch.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2007-11-22-InvokeNoUnwind.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2007-12-21-Crash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-01-02-hoist-fp-add.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-04-23-MergeMultipleResultRet.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-04-27-MultipleReturnCrash.ll	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
2008-05-16-PHIBlockMerge.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-07-13-InfLoopMiscompile.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-09-08-MultiplePred.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-09-17-SpeculativeHoist.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-10-03-SpeculativelyExecuteBeforePHI.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-12-06-SingleEntryPhi.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2008-12-16-DCECond.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2009-01-18-PHIPropCrash.ll	Optimize test more.	2009-11-10 21:02:18 +00:00
2009-01-19-UnconditionalTrappingConstantExpr.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2009-03-05-Speculative-Hoist-Dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
2009-05-12-externweak.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
2009-06-15-InvokeCrash.ll	Floating-point add, sub, and mul are now spelled fadd, fsub, and fmul,	2010-03-02 01:11:08 +00:00
2010-03-30-InvokeCrash.ll	testcase for r99914, provided by baldrick!	2010-03-31 20:37:13 +00:00
2010-10-24-OnlyUnwindInEntry.ll	Fix PR8445: a block with no predecessors may be the entry block, in which case	2010-10-24 12:23:30 +00:00
basictest.ll	Teach SimplifyCFG how to simplify indirectbr instructions.	2010-08-14 00:29:42 +00:00
branch_fold_dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
branch-branch-dbginfo.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
branch-cond-merge.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
branch-cond-prop.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +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	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
branch-phi-thread.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
BrUnwind.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
dbginfo.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
DeadSetCC.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
dg.exp	sabre brings to my attention that the 'tr' suffix is also obsolete	2008-05-20 21:00:03 +00:00
duplicate-phis.ll	fix two bogus tests that the asmparser now rejects.	2009-12-30 05:54:51 +00:00
EqualPHIEdgeBlockMerge.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
hoist-common-code.dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
hoist-common-code.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
HoistCode.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
indirectbr.ll	Instead, teach SimplifyCFG to trim non-address-taken blocks from	2010-08-16 14:41:14 +00:00
invoke_unwind.ll	change simplifycfg to not duplicate 'unwind' instructions. Hopefully	2009-10-13 18:13:05 +00:00
iterative-simplify.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
MagicPointer.ll	Teach SimplifyCFG about magic pointer constants.	2010-02-05 22:03:18 +00:00
noreturn-call.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
PhiBlockMerge2.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
PhiBlockMerge.ll	Revert r85667. LoopUnroll currently can't call utility functions which	2009-10-31 17:33:01 +00:00
PhiEliminate2.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
PhiEliminate.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
PhiNoEliminate.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
return-merge.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
SpeculativeExec.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
switch_create.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
switch_formation.dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
switch_formation.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
switch_switch_fold_dbginfo.ll	Use opt -S instead of piping bitcode output through llvm-dis.	2009-09-08 22:34:10 +00:00
switch_switch_fold.ll	Use opt -S instead of piping bitcode output through llvm-dis.	2009-09-08 22:34:10 +00:00
switch_thread.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
switch-simplify-crash.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
trapping-load-unreachable.ll	Test case for r105914.	2010-06-13 16:16:54 +00:00
two-entry-phi-return.dbg.ll	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
two-entry-phi-return.ll	fix a bunch of spurious failures for people whose home directory	2009-09-11 17:02:12 +00:00
UncondBranchToReturn.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
UnreachableEliminate.ll	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00