shylie/llvm-project
1
0
Fork 0
Code Issues Pull Requests Actions 6 Packages Projects Releases Wiki Activity
llvm-project/llvm/lib/Transforms/Scalar
History
Sanjay Patel 3b6d46761f [CVP] simplify phi with constant incoming values that match common variable edge values 
This is based on an example that was recently posted on llvm-dev:

void *propagate_null(void* b, int* g) {
  if (!b) {
    return 0;
  }
  (*g)++;
  return b;
}

https://godbolt.org/g/xYk3qG

The original code or constant propagation in other passes has obscured the fact 
that the phi can be removed completely.

Differential Revision: https://reviews.llvm.org/D45448

llvm-svn: 329755
2018-04-10 20:42:39 +00:00
..
ADCE.cpp
Fix a bunch of typoes. NFC
2018-03-30 22:22:31 +00:00
AlignmentFromAssumptions.cpp
[AlignmentFromAssumptions] Set source and dest alignments of memory intrinsiscs separately
2018-02-22 18:55:59 +00:00
BDCE.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
CallSiteSplitting.cpp
[CallSiteSplitting] Do not perform callsite splitting inside landing pad
2018-04-05 04:16:23 +00:00
CMakeLists.txt
Remove the LoopInstSimplify pass (-loop-instsimplify)
2018-03-12 20:49:42 +00:00
ConstantHoisting.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
ConstantProp.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
CorrelatedValuePropagation.cpp
[CVP] simplify phi with constant incoming values that match common variable edge values
2018-04-10 20:42:39 +00:00
DCE.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
DeadStoreElimination.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
DivRemPairs.cpp
[DivRempairs] add a pass to optimize div/rem pairs (PR31028)
2017-09-09 13:38:18 +00:00
EarlyCSE.cpp
[EarlyCSE] Add debug counter for debugging mis-optimizations. NFC.
2018-04-06 18:47:33 +00:00
FlattenCFGPass.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
Float2Int.cpp
[Float2Int] Replace a ConstantRange copy with a move. Remove an extra call to MapVector::find.
2017-05-05 17:09:29 +00:00
GuardWidening.cpp
[GuardWidening] Group code by class [NFC]
2018-03-23 23:41:47 +00:00
GVN.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
GVNHoist.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
GVNSink.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
InductiveRangeCheckElimination.cpp
[IRCE] Relax restriction on collected range checks
2018-04-09 06:01:22 +00:00
IndVarSimplify.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
InferAddressSpaces.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
IVUsersPrinter.cpp
…
JumpThreading.cpp
Revert "[PR16756] Use SSAUpdaterBulk in JumpThreading." one more time.
2018-04-10 03:40:29 +00:00
LICM.cpp
Fix a bunch of typoes. NFC
2018-03-30 22:22:31 +00:00
LLVMBuild.txt
Another try to commit 323321 (aggressive instruction combine).
2018-01-25 12:06:32 +00:00
LoopAccessAnalysisPrinter.cpp
…
LoopDataPrefetch.cpp
[NFC] fix trivial typos in comments
2018-01-19 10:55:29 +00:00
LoopDeletion.cpp
Use phi ranges to simplify code. No functionality change intended.
2017-12-30 15:27:33 +00:00
LoopDistribute.cpp
[Dominators] Remove verifyDomTree and add some verifying for Post Dom Trees
2018-02-28 11:00:08 +00:00
LoopIdiomRecognize.cpp
[LIR] Reorder header. NFC
2018-04-08 13:19:53 +00:00
LoopInterchange.cpp
[LoopInterchange] Add stats counter for number of interchanged loops.
2018-04-05 10:39:23 +00:00
LoopLoadElimination.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
LoopPassManager.cpp
…
LoopPredication.cpp
[LoopPredication] Add profitability check based on BPI
2018-03-22 16:03:59 +00:00
LoopRerollPass.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
LoopRotation.cpp
[LoopRotate] Restructuring LoopRotation.cpp to create Loop Rotation Pass with Loop Rotation Utility Interface
2018-03-29 08:48:15 +00:00
LoopSimplifyCFG.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
LoopSink.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
LoopStrengthReduce.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
LoopUnrollPass.cpp
[Hexagon] peel loops with runtime small trip counts
2018-04-03 22:55:09 +00:00
LoopUnswitch.cpp
[NFC][LICM] Rearrange checks to have the cheap bail out first
2018-03-29 20:32:15 +00:00
LoopVersioningLICM.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
LowerAtomic.cpp
Remove redundant includes from lib/Transforms.
2017-12-13 21:31:01 +00:00
LowerExpectIntrinsic.cpp
Fix builin_expect lowering bug
2017-06-07 18:32:24 +00:00
LowerGuardIntrinsic.cpp
Sort the remaining #include lines in include/... and lib/....
2017-06-06 11:49:48 +00:00
MemCpyOptimizer.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
MergedLoadStoreMotion.cpp
Mark MergedLoadStoreMotion as not preserving MemDep results
2018-02-23 10:41:57 +00:00
MergeICmps.cpp
[MergeICmp] Update debug msg.NFC
2018-04-09 14:29:13 +00:00
NaryReassociate.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
NewGVN.cpp
[NFC] fix trivial typos in comments and error message
2018-04-09 04:37:53 +00:00
PartiallyInlineLibCalls.cpp
[PartiallyInlineLibCalls][x86] add TTI hook to allow sqrt inlining to depend on arg rather than result
2017-11-27 21:15:43 +00:00
PlaceSafepoints.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
Reassociate.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
Reg2Mem.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
RewriteStatepointsForGC.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
Scalar.cpp
Oops - moved slightly too many things from Scalar to Utils. Move LoopSimplifyCFG things back
2018-03-28 18:03:25 +00:00
Scalarizer.cpp
[Transforms] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
2017-10-20 21:47:29 +00:00
SCCP.cpp
Revert r328307: [IPSCCP] Use constant range information for comparisons of parameters.
2018-03-23 12:49:39 +00:00
SeparateConstOffsetFromGEP.cpp
Plumb useAA through TargetTransformInfo to remove Transforms->CodeGen header dependency
2018-03-28 22:28:50 +00:00
SimpleLoopUnswitch.cpp
[Dominators] Remove verifyDomTree and add some verifying for Post Dom Trees
2018-02-28 11:00:08 +00:00
SimplifyCFGPass.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
Sink.cpp
[Sink] Really really fix predicate in legality check
2018-01-11 21:28:57 +00:00
SpeculateAroundPHIs.cpp
Add a new pass to speculate around PHI nodes with constant (integer) operands when profitable.
2017-11-28 11:32:31 +00:00
SpeculativeExecution.cpp
Revert r301950: SpeculativeExecution: Stop using whitelist for costs
2017-05-10 12:30:07 +00:00
SROA.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
StraightLineStrengthReduce.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
StructurizeCFG.cpp
StructurizeCFG: Test for branch divergence correctly
2018-04-04 10:58:15 +00:00
TailRecursionElimination.cpp
Remove redundant includes from lib/Transforms.
2017-12-13 21:31:01 +00:00