llvm-svn: 137712

ArrayRef.

llvm-svn: 135761

ConstantExpr::getInBoundsGetElementPtr to use ArrayRef.

llvm-svn: 135673

llvm-svn: 135375

llvm-svn: 135358

related bug fixes and corresponding assertions for uninitialized data
and missing NULL check. Test cases will be included with the new LFTR.

llvm-svn: 135333

llvm-svn: 134441

llvm-svn: 133995

llvm-svn: 133992

llvm-svn: 133642

PHINode::Create() giving the (known or expected) number of operands.

llvm-svn: 128537

llvm-svn: 128535

properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.

llvm-svn: 127590

bitcasts, which are really no-ops here. This fixes slowdowns on
MultiSource/Applications/aha and others.

llvm-svn: 127031

This fixes PR9259.

llvm-svn: 126812

queries, and SCEVExpander getRelevantLoop queries.

llvm-svn: 119595

llvm-svn: 119570

functions of ScalarEvolution, in preparation for memoization and
other optimizations.

llvm-svn: 119562

it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.

llvm-svn: 109419

find integer induction variables.

llvm-svn: 108853

result is a PHINode*.

llvm-svn: 108852

it doesn't miss an opportunity to form a GEP, regardless of the
relative loop depths of the operands. This fixes rdar://8197217.

llvm-svn: 108475

llvm-svn: 107989

llvm-svn: 107988

llvm-svn: 107976

llvm-svn: 107248

SmallVector, and other SmallVector simplifications.

llvm-svn: 106452

in refactoring.

llvm-svn: 106398

a helper function.

llvm-svn: 106388

when iterating through instructions. Yet more work for rdar://7797940

llvm-svn: 106149

there could be multiple subexpressions within a single expansion which
require insert point adjustment. This fixes PR7306.

llvm-svn: 105510

same, now that getConstant has overloads consistent with ConstantInt::get.

llvm-svn: 102965

doesn't dominate the header is needed, don't check whether the increment
expression has computable loop evolution. While the operands of an
addrec are required to be loop-invariant, they're not required to 
dominate any part of the loop. This fixes PR6914.

llvm-svn: 102389

llvm-svn: 101376

a hoisted intermediate result if the intermediate result isn't an
Instruction.

llvm-svn: 100884

llvm-svn: 100874

explicitly split into stride-and-offset pairs. Also, add the
ability to track multiple post-increment loops on the same expression.

This refines the concept of "normalizing" SCEV expressions used for
to post-increment uses, and introduces a dedicated utility routine for
normalizing and denormalizing expressions.

This fixes the expansion of expressions which are post-increment users
of more than one loop at a time. More broadly, this takes LSR another
step closer to being able to reason about more than one loop at a time.

llvm-svn: 100699

for ignoring debug info intrinsics everywhere else is to advance
past them, and it needs to be consistent.

llvm-svn: 99332

use-before-def errors in SCEVExpander-produced code in sqlite3 when debug
info with optimization is enabled, though the testcases for this are
dependent on use-list order.

llvm-svn: 99001

llvm-svn: 98793