Jakub Kuderski df54160123 There is a trunc(lshr (zext A), Cst) optimization in InstCombineCasts that ...

removes cast by performing the lshr on smaller types. However, currently there
is no trunc(lshr (sext A), Cst) variant.
This patch add such optimization by transforming trunc(lshr (sext A), Cst)
to ashr A, Cst.

Differential Revision: http://reviews.llvm.org/D12520


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246997 91177308-0d34-0410-b5e6-96231b3b80d8

2015-09-08 10:03:17 +00:00

..

ADCE

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

AddDiscriminators

DI: Require subprogram definitions to be distinct

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

AlignmentFromAssumptions

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

ArgumentPromotion

DI: Require subprogram definitions to be distinct

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

AtomicExpand

Fix an alignment error in llvm::expandAtomicRMWToCmpXchg without breaking the build where X86 isn't enabled.

2015-08-06 16:55:03 +00:00

BBVectorize

Changed renaming of local symbols by inserting a dot vefore the numeric suffix.

2015-05-12 16:47:30 +00:00

BDCE

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

BranchFolding

Address post-commit review from r243378.

2015-08-11 00:20:24 +00:00

CodeExtractor

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

CodeGenPrepare

AMDGPU: Fix some places missed in rename

2015-06-19 17:39:03 +00:00

ConstantHoisting

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

ConstantMerge

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

ConstProp

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

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

CorrelatedValuePropagation

[CVP] Don't assume Constants of type i1 can be known to be true or false

2015-06-06 04:56:51 +00:00

DeadArgElim

DeadArgElim: don't eliminate arguments from naked functions

2015-09-01 18:06:46 +00:00

DeadStoreElimination

DI: Require subprogram definitions to be distinct

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

EarlyCSE

Allow value forwarding past release fences in EarlyCSE

2015-08-27 01:32:33 +00:00

EliminateAvailableExternally

Don't change the visibility when converting a definition to a declaration.

2015-07-13 14:18:22 +00:00

Float2Int

Reapply r233175 and r233183: float2int.

2015-03-27 10:36:57 +00:00

FunctionAttrs

[FunctionAttr] Infer nonnull attributes on returns

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

GCOVProfiling

DI: Require subprogram definitions to be distinct

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

GlobalDCE

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

GlobalOpt

DI: Require subprogram definitions to be distinct

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

GVN

assuem(X) handling in GVN bugfix

2015-09-02 20:00:03 +00:00

IndVarSimplify

Make ScalarEvolution::isKnownPredicate a little smarter

2015-08-19 01:51:51 +00:00

Inline

DI: Require subprogram definitions to be distinct

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

InstCombine

There is a trunc(lshr (zext A), Cst) optimization in InstCombineCasts that

2015-09-08 10:03:17 +00:00

InstMerge

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

InstSimplify

Fix CHECK directives that weren't checking.

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

Internalize

Internalize: internalize comdat members as a group, and drop comdat on such members.

2015-07-16 17:42:21 +00:00

IPConstantProp

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

IRCE

[IRCE] Fix a regression introduced in r232444.

2015-03-24 19:29:18 +00:00

JumpThreading

[LazyValueInfo] Look through Phi nodes when trying to prove a predicate

2015-08-31 18:31:48 +00:00

LCSSA

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

LICM

Fix CHECK directives that weren't checking.

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

LoadCombine

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

LoopDeletion

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

LoopDistribute

[LAA] Hold bounds via ValueHandles during SCEV expansion

2015-08-21 23:19:57 +00:00

LoopIdiom

DI: Require subprogram definitions to be distinct

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

LoopInterchange

Add support to interchange loops with reductions.

2015-04-23 04:51:44 +00:00

LoopReroll

Handle loop with negtive induction variable increment

2015-07-24 22:01:49 +00:00

LoopRotate

DI: Require subprogram definitions to be distinct

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

LoopSimplify

DI: Require subprogram definitions to be distinct

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

LoopStrengthReduce

DI: Require subprogram definitions to be distinct

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

LoopUnroll

DI: Require subprogram definitions to be distinct

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

LoopUnswitch

[LoopUnswitch] Preserve make.implicit metadata for unswitched conditions

2015-08-05 21:13:26 +00:00

LoopVectorize

Simplify testcase added in r246759. NFC

2015-09-04 11:37:20 +00:00

LowerAtomic

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

LowerBitSets

LowerBitSets: Ignore bitset entries that do not directly refer to a global.

2015-06-27 00:17:51 +00:00

LowerExpectIntrinsic

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

LowerInvoke

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

LowerSwitch

[LowerSwitch] Fix a bug when LowerSwitch deletes the default block

2015-08-11 18:12:26 +00:00

Mem2Reg

DI: Update tests before adding !dbg subprogram attachments

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

MemCpyOpt

Emit argmemonly attribute for intrinsics.

2015-08-13 17:40:04 +00:00

MergeFunc

[WinEH] Add cleanupendpad instruction

2015-09-03 09:09:43 +00:00

MetaRenamer

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

NaryReassociate

[NaryReassociate] enhances nsw by leveraging @llvm.assume

2015-07-01 03:38:49 +00:00

ObjCARC

DI: Require subprogram definitions to be distinct

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

PartiallyInlineLibCalls

PartiallyInlineLibCalls: Check sqrt result type before transforming it.

2014-08-01 23:21:21 +00:00

PhaseOrdering

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

PlaceSafepoints

[Statepoints] Let patchable statepoints have a symbolic call target.

2015-07-28 23:50:30 +00:00

PruneEH

[PruneEH] A naked, noinline function can return via InlineAsm

2015-06-27 07:52:53 +00:00

Reassociate

Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI

2015-08-10 19:01:27 +00:00

Reg2Mem

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

RewriteStatepointsForGC

[RewriteStatepointsForGC] Improve debug output [NFC]

2015-09-02 21:11:44 +00:00

SafeStack

SafeStack: Create the unsafe stack pointer on demand.

2015-06-22 20:26:54 +00:00

SampleProfile

DI: Require subprogram definitions to be distinct

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

Scalarizer

DI: Require subprogram definitions to be distinct

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

ScalarRepl

DI: Require subprogram definitions to be distinct

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

SCCP

[ConstantFolding] Support folding loads from a GlobalAlias

2015-07-22 22:29:30 +00:00

SeparateConstOffsetFromGEP

[SeparateConstOffsetFromGEP] sext(a)+sext(b) => sext(a+b) when a+b can't sign-overflow.

2015-08-14 02:02:05 +00:00

SimplifyCFG

Fixing bad test syntax.

2015-09-04 23:47:34 +00:00

Sink

Teach the IR Sink pass to (conservatively) respect convergent annotations.

2015-06-01 17:20:31 +00:00

SLPVectorizer

DI: Require subprogram definitions to be distinct

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

SpeculativeExecution

Add a speculative execution pass

2015-05-15 17:54:48 +00:00

SROA

Fix CHECK directives that weren't checking.

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

StraightLineStrengthReduce

[SeparateConstOffsetFromGEP] strengthen the inbounds attribute

2015-08-13 18:48:49 +00:00

StripSymbols

DI: Require subprogram definitions to be distinct

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

StructurizeCFG

Fix CHECK directives that weren't checking.

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

TailCallElim

Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI

2015-08-10 19:01:27 +00:00

TailDup

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

Util

Changed renaming of local symbols by inserting a dot vefore the numeric suffix.

2015-05-12 16:47:30 +00:00