Nick Lewycky 6977e79526 Support pointer comparisons against constants, when looking at the inline-cost ...

savings from a pointer argument becoming an alloca. Sometimes callees will even
compare a pointer to null and then branch to an otherwise unreachable block!
Detect these cases and compute the number of saved instructions, instead of
bailing out and reporting no savings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148941 91177308-0d34-0410-b5e6-96231b3b80d8

2012-01-25 08:27:40 +00:00

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ADCE

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ArgumentPromotion

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BlockPlacement

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BranchFolding

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CodeExtractor

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CodeGenPrepare

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ConstantMerge

If the global variable is removed by the linker, then don't constant merge it

2012-01-11 00:13:08 +00:00

ConstProp

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CorrelatedValuePropagation

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DeadArgElim

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DeadStoreElimination

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EarlyCSE

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FunctionAttrs

Change CaptureTracking to pass a Use* instead of a Value* when a value is

2011-12-28 23:24:21 +00:00

GlobalDCE

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GlobalOpt

PR11705, part 2: globalopt shouldn't put inttoptr/ptrtoint operations into global initializers if there's an implied extension or truncation.

2012-01-05 23:03:32 +00:00

GVN

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IndVarSimplify

Extended replaceCongruentPhis to handle mixed phi types.

2012-01-07 01:12:09 +00:00

Inline

Support pointer comparisons against constants, when looking at the inline-cost

2012-01-25 08:27:40 +00:00

InstCombine

Don't try to create a GEP when the pointee type is unsized (such GEPs

2012-01-11 12:20:08 +00:00

InstSimplify

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Internalize

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IPConstantProp

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JumpThreading

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LCSSA

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LICM

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LoopDeletion

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LoopIdiom

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LoopRotate

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LoopSimplify

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LoopStrengthReduce

Handle a corner case with IV chain collection with bailout instead of assert.

2012-01-20 21:23:40 +00:00

LoopUnroll

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LoopUnswitch

Improved compile time:

2012-01-11 08:40:51 +00:00

LowerAtomic

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LowerExpectIntrinsic

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LowerInvoke

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LowerSwitch

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Mem2Reg

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MemCpyOpt

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MergeFunc

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ObjCARC

Set the "tail" flag on pattern-matched objc_storeStrong calls.

2012-01-19 19:14:36 +00:00

PhaseOrdering

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PruneEH

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Reassociate

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ScalarRepl

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SCCP

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SimplifyCFG

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

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

SimplifyLibCalls

Turn cos(-x) into cos(x). Patch by Alexander Malyshev!

2011-12-27 18:25:50 +00:00

Sink

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StripSymbols

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TailCallElim

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TailDup

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