David Majnemer 7a2ed26563 InstSimplify: Optimize using dividend in sdiv ...

Summary:
The dividend in an sdiv tells us the largest and smallest possible
results.  Use this fact to optimize comparisons against an sdiv with a
constant dividend.

Reviewers: nicholas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D3795

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208999 91177308-0d34-0410-b5e6-96231b3b80d8

2014-05-16 16:57:04 +00:00

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ADCE

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AddDiscriminators

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ArgumentPromotion

IR: Conservatively verify inalloca arguments

2014-04-30 17:22:00 +00:00

AtomicExpandLoadLinked/ARM

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BBVectorize

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BranchFolding

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CodeExtractor

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CodeGenPrepare

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ConstantHoisting

Move test from r207969 to another folder and rename it.

2014-05-05 18:10:15 +00:00

ConstantMerge

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ConstProp

Teach the constant folder to look through bitcast constant expressions

2014-05-15 09:56:28 +00:00

CorrelatedValuePropagation

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DeadArgElim

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DeadStoreElimination

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DebugIR

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EarlyCSE

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FunctionAttrs

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GCOVProfiling

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GlobalDCE

Convert test to FileCheck.

2014-05-13 00:07:46 +00:00

GlobalMerge

Revert "Implement global merge optimization for global variables."

2014-05-16 13:02:18 +00:00

GlobalOpt

IR: Don't allow non-default visibility on local linkage

2014-05-07 22:57:20 +00:00

GVN

[GVN] Pass the phi-translated address of a load instead of the untranslated

2014-05-02 17:59:17 +00:00

IndVarSimplify

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Inline

Don't insert lifetime.end markers between a musttail call and ret

2014-05-15 21:10:46 +00:00

InstCombine

Reverting r208848, reason: build failure: sanitizer-x86_64-linux-bootstrap/builds/3399

2014-05-15 08:22:55 +00:00

InstSimplify

InstSimplify: Optimize using dividend in sdiv

2014-05-16 16:57:04 +00:00

Internalize

Convert test to FileCheck.

2014-05-13 00:31:31 +00:00

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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LoopReroll

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LoopRotate

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LoopSimplify

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LoopStrengthReduce

[LSR] Add llc testcase for r207271/r207569.

2014-05-02 23:49:01 +00:00

LoopUnroll

Move late partial-unrolling thresholds into the processor definitions

2014-05-08 09:14:44 +00:00

LoopUnswitch

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LoopVectorize

[Test] Trim unnecessary .c and .cpp from config.suffix in lit.local.cfg

2014-05-12 19:57:31 +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

IR: Don't allow non-default visibility on local linkage

2014-05-07 22:57:20 +00:00

MetaRenamer

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ObjCARC

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PhaseOrdering

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PruneEH

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Reassociate

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Reg2Mem

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SampleProfile

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Scalarizer

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ScalarRepl

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SCCP

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SeparateConstOffsetFromGEP/NVPTX

Add an optimization that does CSE in a group of similar GEPs.

2014-05-01 18:38:36 +00:00

SimplifyCFG

Add ExtractValue instruction to SimplifyCFG's ComputeSpeculationCost

2014-05-09 17:02:46 +00:00

Sink

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SLPVectorizer

SLPVectorizer: When sorting by domination for CSE don't assert on unreachable code.

2014-05-09 23:28:49 +00:00

SROA

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StripSymbols

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StructurizeCFG

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TailCallElim

Improve 'tail' call marking in TRE. A bootstrap of clang goes from 375k calls marked tail in the IR to 470k, however this improvement does not carry into an improvement of the call/jmp ratio on x86. The most common pattern is a tail call + br to a block with nothing but a 'ret'.

2014-05-05 23:59:03 +00:00

TailDup

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