Filipe Cabecinhas cd9f6b870e Optimize some special cases for SSE4a insertqi ...

Summary:
Since the upper 64 bits of the destination register are undefined when
performing this operation, we can substitute it and let the optimizer
figure out that only a copy is needed.

Also added range merging, if an instruction copies a range that can be
merged with a previous copied range.

Added test cases for both optimizations.

Reviewers: grosbach, nadav

CC: llvm-commits

Differential Revision: http://reviews.llvm.org/D3357

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207055 91177308-0d34-0410-b5e6-96231b3b80d8

2014-04-24 00:38:14 +00:00

..

ADCE

…

AddDiscriminators

Fix bug 19437 - Only add discriminators for DWARF 4 and above.

2014-04-17 22:33:50 +00:00

ArgumentPromotion

Update optimization passes to handle inalloca arguments

2014-01-28 02:38:36 +00:00

AtomicExpandLoadLinked/ARM

Atomics: promote ARM's IR-based atomics pass to CodeGen.

2014-04-17 18:22:47 +00:00

BBVectorize

Change math intrinsic attributes from readonly to readnone. These

2014-03-06 00:18:15 +00:00

BranchFolding

Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call

2014-02-13 14:44:26 +00:00

CodeExtractor

…

CodeGenPrepare

CodeGenPrep: sink extends of illegal types into use block.

2014-03-13 13:36:25 +00:00

ConstantHoisting

[Constant Hoisting] Materialize the constant before the cloned cast instruction.

2014-04-22 18:06:58 +00:00

ConstantMerge

Remove the linker_private and linker_private_weak linkages.

2014-03-13 23:18:37 +00:00

ConstProp

…

CorrelatedValuePropagation

…

DeadArgElim

IR: Change inalloca's grammar a bit

2014-03-09 06:41:58 +00:00

DeadStoreElimination

Update optimization passes to handle inalloca arguments

2014-01-28 02:38:36 +00:00

DebugIR

Use right pointer type in DebugIR

2013-09-27 22:26:25 +00:00

EarlyCSE

…

FunctionAttrs

Update optimization passes to handle inalloca arguments

2014-01-28 02:38:36 +00:00

GCOVProfiling

Debug Info: update testing cases to specify the debug info version number.

2013-11-22 21:49:45 +00:00

GlobalDCE

…

GlobalMerge

ARM64: initial backend import

2014-03-29 10:18:08 +00:00

GlobalOpt

Prevent alias from pointing to weak aliases.

2014-03-27 15:26:56 +00:00

GVN

Revert "GVN: merge overflow intrinsics with non-overflow instructions."

2014-03-28 14:42:34 +00:00

IndVarSimplify

[LPM] Fix PR18642, a pretty nasty bug in IndVars that "never mattered"

2014-01-29 04:40:19 +00:00

Inline

Fix PR7272 in -tailcallelim instead of the inliner

2014-04-21 20:48:47 +00:00

InstCombine

Optimize some special cases for SSE4a insertqi

2014-04-24 00:38:14 +00:00

InstSimplify

InstSimplify: Make shift, select and GEP simplifications vector-aware.

2014-01-24 17:09:53 +00:00

Internalize

Correct word hyphenations

2013-12-05 05:44:44 +00:00

IPConstantProp

…

JumpThreading

Don't eliminate a partially redundant load if it's in a landing pad.

2013-10-21 04:09:17 +00:00

LCSSA

…

LICM

[LPM] Switch LICM to actively use LCSSA in addition to preserving it.

2014-02-11 12:52:27 +00:00

LoopDeletion

…

LoopIdiom

Debug Info: update testing cases to specify the debug info version number.

2013-11-23 01:16:29 +00:00

LoopReroll

Fix loop rerolling pass failure with non-consant loop lower bound

2014-01-03 17:20:01 +00:00

LoopRotate

[LPM] Fix PR18643, another scary place where loop transforms failed to

2014-01-29 13:16:53 +00:00

LoopSimplify

[LPM] Switch LICM to actively use LCSSA in addition to preserving it.

2014-02-11 12:52:27 +00:00

LoopStrengthReduce

Convert test to FileCheck

2014-04-23 19:32:37 +00:00

LoopUnroll

Implement X86TTI::getUnrollingPreferences

2014-04-01 18:50:34 +00:00

LoopUnswitch

…

LoopVectorize

[LV] Statistics numbers for LoopVectorize introduced: a number of analyzed loops & a number of vectorized loops.

2014-04-23 08:40:37 +00:00

LowerAtomic

IR: add a second ordering operand to cmpxhg for failure

2014-03-11 10:48:52 +00:00

LowerExpectIntrinsic

Lower llvm.expect intrinsic correctly for i1

2014-02-02 22:43:55 +00:00

LowerInvoke

Remove LowerInvoke's obsolete "-enable-correct-eh-support" option

2014-03-20 19:54:47 +00:00

LowerSwitch

Revert patches to add case-range support for PR1255.

2013-09-09 19:14:35 +00:00

Mem2Reg

Debug Info: update testing cases to specify the debug info version number.

2013-11-22 21:49:45 +00:00

MemCpyOpt

Treat lifetime.start'd memory like we treat freshly alloca'd memory. Patch by Björn Steinbrink!

2014-03-26 23:45:15 +00:00

MergeFunc

PR17925 bugfix.

2013-11-26 16:11:03 +00:00

MetaRenamer

Reject alias to undefined symbols in the verifier.

2014-03-12 20:15:49 +00:00

ObjCARC

Fix use_iterator crash in ObjCArc from r203364

2014-03-18 22:32:43 +00:00

PhaseOrdering

…

PruneEH

…

Reassociate

…

Reg2Mem

…

SampleProfile

Tolerate unmangled names in sample profiles.

2014-03-18 12:03:12 +00:00

Scalarizer

Fix Scalarizer insertion point when replacing PHIs with insertelements

2013-12-23 14:51:56 +00:00

ScalarRepl

Fix PR18800. llvm intrinsic memcpy takes 5 arguments void @llvm.memcpy.p0i8.p0i8.i32(i8* <dest>, i8* <src>, i32 <len>, i32 <align>, i1 <isvolatile>).The test case incorrectly uses the old format resulting in isVolatile function in MemIntrinsic to crash during SROA transformation.Modified the test case to use correct signature of memcpy and memset.

2014-03-13 04:50:29 +00:00

SCCP

…

SimplifyCFG

Allow switch-to-lookup table for tables with holes by adding bitmask check

2014-03-12 18:35:40 +00:00

Sink

Sink: Don't sink static allocas from the entry block

2014-03-21 15:51:51 +00:00

SLPVectorizer

Reapply "SLPVectorizer: Ignore users that are insertelements we can reschedule them"

2014-04-10 13:41:35 +00:00

SROA

[SROA] Use the correct index integer size in GEPs through non-default

2014-02-26 10:08:16 +00:00

StripSymbols

Add a debug info code generation level to the compile unit metadata

2014-02-27 01:24:56 +00:00

StructurizeCFG

StructurizeCFG: Fix verification failure with some loops.

2013-11-22 19:24:39 +00:00

TailCallElim

Fix PR7272 in -tailcallelim instead of the inliner

2014-04-21 20:48:47 +00:00

TailDup

…