Benjamin Kramer b70ebd2aa3 InstCombine: Reduce "X shift (A srem B)" to "X shift (A urem B)" iff B is positive. ...

This allows to transform the rem in "1 << ((int)x % 8);" to an and.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120028 91177308-0d34-0410-b5e6-96231b3b80d8

2010-11-23 18:52:42 +00:00

..

ADCE

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

ArgumentPromotion

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

BlockPlacement

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

BranchFolding

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

CodeExtractor

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

CodeGenPrepare

Add a test for CodeGenPrepare's ability to look through PHI nodes when performing

2010-11-19 22:34:53 +00:00

ConstantMerge

fix PR8144, a bug where constant merge would merge globals marked

2010-09-15 00:30:11 +00:00

ConstProp

rename test.

2010-11-14 07:03:49 +00:00

CorrelatedValuePropagation

Update testcase since we're no longer doing the constant forwarding inline with correlated value propagation.

2010-10-29 21:18:23 +00:00

DeadArgElim

Preserve debug info attached with call instruction while eliminating dead argument.

2010-04-30 20:23:54 +00:00

DeadStoreElimination

implement PR8576, deleting dead stores with intervening may-alias stores.

2010-11-21 07:34:32 +00:00

FunctionAttrs

Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis

2010-11-10 01:02:18 +00:00

GlobalDCE

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

GlobalOpt

GlobalOpt: EvaluateFunction() must not evaluate stores to weak_odr globals.

2010-10-19 16:47:23 +00:00

GVN

Completely rework the datastructure GVN uses to represent the value number to leader mapping. Previously,

2010-11-18 18:32:40 +00:00

IndVarSimplify

Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.

2010-10-07 23:29:37 +00:00

Inline

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

InstCombine

InstCombine: Reduce "X shift (A srem B)" to "X shift (A urem B)" iff B is positive.

2010-11-23 18:52:42 +00:00

Internalize

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

IPConstantProp

more test cleanup

2010-09-02 22:38:56 +00:00

JumpThreading

Fix PR8247: JumpThreading can cause a block to become unreachable while still having predecessor, if it is part of a self-loop.

2010-09-29 20:34:41 +00:00

LCSSA

Avoid depending on LCSSA implicitly pulling in LoopSimplify.

2010-07-26 18:00:43 +00:00

LICM

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

LoopDeletion

Make LoopSimplify change conditional branches in loop exiting blocks

2010-02-25 06:57:05 +00:00

LoopRotate

Teach loop rotate to hoist trivially invariant instructions

2010-09-06 01:10:22 +00:00

LoopSimplify

Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge

2010-09-04 02:42:48 +00:00

LoopStrengthReduce

Correct bogus module triple specifications.

2010-08-30 10:48:29 +00:00

LoopUnroll

Revert r113439, which relaxed the requirement that loops containing calls cannot be unrolled. After some discussion,

2010-09-09 20:02:23 +00:00

LoopUnswitch

Factor code for testing whether replacing one value with another

2010-11-18 19:59:41 +00:00

LowerAtomic

Add an atomic lowering pass

2010-08-03 16:19:16 +00:00

LowerInvoke

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

LowerSetJmp

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

LowerSwitch

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

Mem2Reg

Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.

2010-06-04 22:27:30 +00:00

MemCpyOpt

Implement PR8644: forwarding a memcpy value to a byval,

2010-11-21 00:28:59 +00:00

MergeFunc

Arrays and vectors with different numbers of elements are not equivalent.

2010-07-16 06:31:12 +00:00

PartialSpecialize

Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.

2010-10-09 22:06:36 +00:00

PruneEH

fix some failures my callgraph dump format change broke.

2010-04-23 18:38:40 +00:00

Reassociate

fix a nice subtle reassociate bug which would only occur

2010-03-05 07:18:54 +00:00

ScalarRepl

allow eliminating an alloca that is just copied from an constant global

2010-11-18 06:41:51 +00:00

SCCP

fix PR7876: If ipsccp decides that a function's address is taken

2010-08-12 22:25:23 +00:00

SimplifyCFG

Factor out Instruction::isSafeToSpeculativelyExecute's code for

2010-11-11 21:23:25 +00:00

SimplifyLibCalls

test/Transforms/SimplifyLibCalls/floor.ll: Mark as XFAIL:win32 due to lack of nearbyintf on MSVC. [PR8466]

2010-10-28 06:46:04 +00:00

Sink

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

SRETPromotion

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

StripSymbols

DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE.

2010-08-25 18:52:02 +00:00

TailCallElim

merge two tests.

2010-08-31 18:44:03 +00:00

TailDup

The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!

2010-09-01 18:32:56 +00:00