llvm/Transforms at e9ad33d22d23f0316a5faccb9b005774df22effb - llvm - Gitea: Git with a cup of tea

RPCS3/llvm

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History

Silviu Baranga ebacf44320 [InstCombine] Teach instcombine not to create extra PHI nodes when folding GEPs

Summary:
InstCombine tries to transform GEP(PHI(GEP1, GEP2, ..)) into GEP(GEP(PHI(...))
when possible. However, this may leave the old PHI node around. Even if we
do end up folding the GEPs, having an extra PHI node might not be beneficial.

This change makes the transformation more conservative. We now only do this if
the PHI has only one use, and can therefore be removed after the transformation.

Reviewers: jmolloy, majnemer

Subscribers: mcrosier, mssimpso, llvm-commits

Differential Revision: http://reviews.llvm.org/D13887

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251281 91177308-0d34-0410-b5e6-96231b3b80d8

2015-10-26 10:25:05 +00:00

..

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AddDiscriminators

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

AlignmentFromAssumptions

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ArgumentPromotion

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

[ARM] Emit clrex in the expanded cmpxchg fail block.

2015-09-22 17:22:58 +00:00

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

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Make the default triple optional by allowing an empty string

2015-09-16 05:34:32 +00:00

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[CGP] transform select instructions into branches and sink expensive operands

2015-10-19 21:59:12 +00:00

ConstantHoisting

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[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

[test] (NFC) Simplify Transforms/ConstProp/calls.ll

2015-08-28 18:04:20 +00:00

CorrelatedValuePropagation

[LazyValueInfo] Report nonnull range for nonnull pointers

2015-09-18 13:01:48 +00:00

[DeadArgElim] Split the invoke successor edge

2015-09-23 15:41:09 +00:00

DeadStoreElimination

[DeadStoreElimination] Remove dead zero store to calloc initialized memory

2015-09-23 11:38:44 +00:00

[EarlyCSE] Fix handling of target memory intrinsics for CSE'ing loads.

2015-10-07 07:41:29 +00:00

EliminateAvailableExternally

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[FunctionAttr] Infer nonnull attributes on returns

2015-08-31 19:44:38 +00:00

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

GlobalOpt does not treat externally_initialized globals correctly

2015-10-12 13:20:52 +00:00

GVN: don't try to replace instruction with itself.

2015-10-23 20:30:02 +00:00

[SCEV] Remove a test case added in r249168

2015-10-22 19:57:41 +00:00

[InlineFunction] Correctly inline TerminatePadInst

2015-10-13 22:08:17 +00:00

[InstCombine] Teach instcombine not to create extra PHI nodes when folding GEPs

2015-10-26 10:25:05 +00:00

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Handle non-constant shifts in computeKnownBits, and use computeKnownBits for constant folding in InstCombine/Simplify

2015-10-23 20:37:08 +00:00

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

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Recommit r250345, it was reverted in r250366 to investigate a bot failure.

2015-10-15 14:59:40 +00:00

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[LICM] Hoist calls to readonly argmemonly functions even with stores in the loop

2015-09-21 22:27:59 +00:00

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DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

LoopInterchange

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[LoopReroll] Ignore debug intrinsics

2015-09-28 17:03:23 +00:00

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

LoopStrengthReduce

[SCEV] Mark AddExprs as nsw or nuw if legal

2015-10-22 19:57:19 +00:00

[Tests] Add one more case to LoopUnroll/pr18861.ll for better coverage.

2015-10-02 19:21:52 +00:00

Teach LoopUnswitch not to perform non-trivial unswitching on loops containing convergent operations.

2015-10-09 18:40:20 +00:00

[LoopVectorize] Shrink integer operations into the smallest type possible

2015-10-12 12:34:45 +00:00

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[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

LowerExpectIntrinsic

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DI: Update tests before adding !dbg subprogram attachments

2015-08-28 23:32:00 +00:00

[MemCpyOpt] Fix wrong merging adjacent nontemporal stores into memset calls.

2015-10-09 10:53:41 +00:00

MergeFunctions: Clear GlobalNumbers ValueMap

2015-10-05 17:26:36 +00:00

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

NaryReassociate

[NaryReassociate] SeenExprs records WeakVH

2015-10-01 03:51:44 +00:00

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

PartiallyInlineLibCalls

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PlaceSafepoints

[PlaceSafepoints] Make the width of a counted loop settable.

2015-09-15 01:42:48 +00:00

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RewriteStatepointsForGC

[RS4GC] Re-purpose normalizeForInvokeSafepoint; NFC.

2015-10-20 01:06:24 +00:00

Revert "[safestack] Fast access to the unsafe stack pointer on AArch64/Android."

2015-10-15 21:26:49 +00:00

Tolerate negative offset when matching sample profile.

2015-10-21 01:22:27 +00:00

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

SeparateConstOffsetFromGEP

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Revert rL251061 [SimplifyCFG] Extend SimplifyResume to handle phi of trivial landing pad.

2015-10-23 21:13:01 +00:00

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[SLP] Don't vectorize loads of non-packed types (like i1, i2).

2015-09-30 21:05:43 +00:00

SpeculativeExecution

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[PM] Port SROA to the new pass manager.

2015-09-12 09:09:14 +00:00

StraightLineStrengthReduce

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DI: Require subprogram definitions to be distinct

2015-08-28 20:26:49 +00:00

Fix CHECK directives that weren't checking.

2015-08-31 21:10:35 +00:00

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