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2adc5b6a17
llvm-6502/test/Transforms
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Eli Friedman 2adc5b6a17 PR9420; an instruction before an unreachable is guaranteed not to have any 
reachable uses, but there still might be uses in dead blocks.  Use the
standard solution of replacing all the uses with undef.  This is
a rare case because it's very sensitive to phase ordering in SimplifyCFG.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127299 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 00:48:33 +00:00
..
ADCE
ArgumentPromotion fix PR8932, a case where arg promotion could infinitely promote. 2011-01-16 08:09:24 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare temporarily revert r123526. While working on a follow-on patch I 2011-01-15 07:51:19 +00:00
ConstantMerge Don't merge two constants if we care about the address of both. 2011-01-16 17:05:09 +00:00
ConstProp When loading from a constant, fold inttoptr if the integer type and the resulting pointer type both have the same size. 2011-02-06 20:11:56 +00:00
CorrelatedValuePropagation Test for lazy value info's ability to prove the absense of NULLs in pointers. 2011-01-16 21:57:20 +00:00
DeadArgElim Add an obvious missing safety check to DAE::RemoveDeadArgumentsFromCallers. 2011-03-01 00:33:47 +00:00
DeadStoreElimination Fix PR8728, a miscompilation I recently introduced. When optimizing 2010-12-06 01:48:06 +00:00
EarlyCSE Duncan deftly points out that readnone functions aren't 2011-01-03 23:38:13 +00:00
FunctionAttrs Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 2010-11-10 01:02:18 +00:00
GlobalDCE
GlobalOpt Add unnamed_addr when we can show that address of a global is not used. 2011-01-19 16:32:21 +00:00
GVN Give GVN back the ability to perform simple conditional propagation on conditional branch values. 2010-12-21 23:54:34 +00:00
IndVarSimplify Remove LoopIndexSplit pass. It is neither maintained nor used by anyone. 2010-10-07 23:29:37 +00:00
Inline relax testcase a bit. 2011-01-14 07:46:33 +00:00
InstCombine Tweak this test. We can analyze what happens and show that we still do the 2011-03-07 02:10:18 +00:00
InstSimplify Thread comparisons over udiv/sdiv/ashr/lshr exact and lshr nuw/nsw whenever 2011-03-05 05:19:11 +00:00
Internalize Add test for r127138. 2011-03-07 21:28:14 +00:00
IPConstantProp
JumpThreading Fix PR9331. Simplified version of a patch by Jakub Staszak. 2011-03-08 12:39:03 +00:00
LCSSA Rename 'loopsimplify' to 'loop-simplify'. 2011-02-10 23:38:10 +00:00
LICM While sinking an instruction, do not lose llvm.dbg.value intrinsic. 2011-03-08 03:06:19 +00:00
LoopDeletion Make LoopDeletion work on loops with multiple edges, as long as the incoming 2011-02-22 22:25:39 +00:00
LoopIdiom Preserve line no. info. 2011-03-07 22:43:45 +00:00
LoopRotate Do not hoist @llvm.dbg.value. Here, @llvm.dbg.value is "referring" a value that is modified inside loop. 2011-02-14 23:03:23 +00:00
LoopSimplify Rename 'loopsimplify' to 'loop-simplify'. 2011-02-10 23:38:10 +00:00
LoopStrengthReduce Teach RecursivelyDeleteDeadPHINodes to handle multiple self-references. Patch 2011-02-20 08:38:20 +00:00
LoopUnroll add a testcase for r125827 2011-02-18 05:05:01 +00:00
LoopUnswitch Factor code for testing whether replacing one value with another 2010-11-18 19:59:41 +00:00
LowerAtomic
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt Actually check memcpy lengths, instead of just commenting about 2011-01-21 22:07:57 +00:00
MergeFunc When removing a function from the function set and adding it to deferred, we 2011-02-09 06:32:02 +00:00
PruneEH
Reassociate fix PR9215, preventing -reassociate from clearing nsw/nuw when 2011-02-17 01:29:24 +00:00
ScalarRepl merge all the "crash tests" into crash.ll 2011-01-24 03:37:34 +00:00
SCCP
SimplifyCFG PR9420; an instruction before an unreachable is guaranteed not to have any 2011-03-09 00:48:33 +00:00
SimplifyLibCalls Optimize fprintf -> iprintf if there are no floating point arguments 2011-03-03 14:20:22 +00:00
Sink Make BasicAliasAnalysis a normal AliasAnalysis implementation which 2010-10-18 18:04:47 +00:00
SRETPromotion
StripSymbols
TailCallElim Add a test for TCE return duplication. 2011-01-29 04:53:35 +00:00
TailDup