David Majnemer c3e70ca886 InstSimplify: Simplify trivial and/or of icmps ...

Some ICmpInsts when anded/ored with another ICmpInst trivially reduces
to true or false depending on whether or not all integers or no integers
satisfy the intersected/unioned range.

This sort of trivial looking code can come about when InstCombine
performs a range reduction-type operation on sdiv and the like.

This fixes PR20916.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217750 91177308-0d34-0410-b5e6-96231b3b80d8

2014-09-15 08:15:28 +00:00

..

ADCE

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AddDiscriminators

Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.

2014-08-21 22:45:21 +00:00

AlignmentFromAssumptions

[AlignmentFromAssumptions] Don't crash just because the target is 32-bit

2014-09-11 08:40:17 +00:00

ArgumentPromotion

Don't promote byval pointer arguments when padding matters

2014-08-28 22:42:00 +00:00

AtomicExpand/ARM

Use target-dependent emitLeading/TrailingFence instead of the target-independent insertLeading/TrailingFence (in AtomicExpandPass)

2014-09-03 21:01:03 +00:00

BBVectorize

Reduce verbiage of lit.local.cfg files

2014-06-09 22:42:55 +00:00

BranchFolding

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CodeExtractor

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CodeGenPrepare

CodeGenPrep: fall back to MVT::Other if instruction's type isn't an EVT.

2014-07-29 10:20:22 +00:00

ConstantHoisting

[ConstantHoisting][X86] Improve the cost model for small constants with large types (i64 and above).

2014-06-10 00:32:29 +00:00

ConstantMerge

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ConstProp

Fix a bug around truncating vector in const prop.

2014-08-21 02:12:35 +00:00

CorrelatedValuePropagation

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DeadArgElim

musttail: Don't eliminate varargs packs if there is a forwarding call

2014-08-26 00:59:51 +00:00

DeadStoreElimination

Relax the constraint more in MemoryDependencyAnalysis.cpp

2014-08-29 20:32:58 +00:00

DebugIR

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EarlyCSE

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FunctionAttrs

[optnone] Make the optnone attribute effective at suppressing function

2014-08-13 10:49:33 +00:00

GCOVProfiling

Fix coverage for files with global constructors again. Adds a testcase to the commit from r206671, as requested by David Blaikie.

2014-06-05 04:31:43 +00:00

GlobalDCE

Remove dangling initializers in GlobalDCE

2014-08-25 17:51:14 +00:00

GlobalOpt

GlobalOpt: Optimize in the face of insertvalue/extractvalue

2014-08-08 05:50:43 +00:00

GVN

Relax the constraint more in MemoryDependencyAnalysis.cpp

2014-08-29 20:32:58 +00:00

IndVarSimplify

IndVarSimplify: Don't let LFTR compare against a poison value

2014-09-03 23:03:18 +00:00

Inline

Add functions for finding ephemeral values

2014-09-07 13:49:57 +00:00

InstCombine

Check for all known bits on ret in InstCombine

2014-09-07 21:28:34 +00:00

InstMerge

MergedLoadStoreMotion pass

2014-07-18 19:13:09 +00:00

InstSimplify

InstSimplify: Simplify trivial and/or of icmps

2014-09-15 08:15:28 +00:00

Internalize

Use "weak alias" instead of "alias weak"

2014-07-30 22:51:54 +00:00

IPConstantProp

No need for those tests to go thru llvm-as and/or llvm-dis.

2014-05-27 22:03:28 +00:00

JumpThreading

Make use of @llvm.assume from LazyValueInfo

2014-09-07 20:29:59 +00:00

LCSSA

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LICM

LICM: Don't crash when an instruction is used by an unreachable BB

2014-09-02 16:22:00 +00:00

LoadCombine

Add LoadCombine pass.

2014-05-29 01:55:07 +00:00

LoopDeletion

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LoopIdiom

R600: Implement TTI:getPopcntSupport

2014-07-18 06:07:13 +00:00

LoopReroll

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LoopRotate

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LoopSimplify

FileCheckize. NFC.

2014-09-12 17:55:16 +00:00

LoopStrengthReduce

Reduce verbiage of lit.local.cfg files

2014-06-09 22:42:55 +00:00

LoopUnroll

Add functions for finding ephemeral values

2014-09-07 13:49:57 +00:00

LoopUnswitch

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LoopVectorize

Rename getMaximumUnrollFactor -> getMaxInterleaveFactor; also rename option names controlling this variable.

2014-09-10 17:58:16 +00:00

LowerAtomic

IR: add "cmpxchg weak" variant to support permitted failure.

2014-06-13 14:24:07 +00:00

LowerExpectIntrinsic

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LowerInvoke

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LowerSwitch

Added test for commit r212802 that was missing

2014-07-11 10:36:00 +00:00

Mem2Reg

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MemCpyOpt

Fix a really bad miscompile introduced in r216865 - the else-if logic

2014-09-01 10:09:18 +00:00

MergeFunc

Fix crash when looking up the addrspace of GEPs with vector types

2014-09-02 18:47:54 +00:00

MetaRenamer

Use "weak alias" instead of "alias weak"

2014-07-30 22:51:54 +00:00

ObjCARC

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PartiallyInlineLibCalls

PartiallyInlineLibCalls: Check sqrt result type before transforming it.

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

PhaseOrdering

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PruneEH

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Reassociate

Reassociate x + -0.1234 * y into x - 0.1234 * y

2014-08-21 10:45:30 +00:00

Reg2Mem

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SampleProfile

Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.

2014-08-21 22:45:21 +00:00

Scalarizer

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ScalarRepl

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SCCP

SCCP: update for cmpxchg returning { iN, i1 } now.

2014-06-13 14:54:09 +00:00

SeparateConstOffsetFromGEP/NVPTX

Partially revert r210444 due to performance regression

2014-07-16 23:25:00 +00:00

SimplifyCFG

Add a test for hoisting instructions with metadata out of then/else blocks

2014-09-09 17:10:21 +00:00

Sink

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SLPVectorizer

Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802).

2014-09-03 17:40:30 +00:00

SROA

SROA: Don't insert instructions before a PHI

2014-09-01 21:20:14 +00:00

StripSymbols

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StructurizeCFG

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TailCallElim

We may visit a call that uses an alloca multiple times in callUsesLocalStack, sometimes with IsNocapture true and sometimes with IsNocapture false. We accidentally skipped work we needed to do in the IsNocapture=false case if we were called with IsNocapture=true the first time. Fixes PR20405!

2014-07-23 06:24:49 +00:00

TailDup

Reduce verbiage of lit.local.cfg files

2014-06-09 22:42:55 +00:00

Util

utils: Fix segfault in flattencfg

2014-08-13 20:31:53 +00:00