llvm-svn: 72480

BUILD_VECTOR.

llvm-svn: 72469

llvm-svn: 72468

llvm-svn: 72467

llvm-svn: 72465

llvm-svn: 72464

llvm-svn: 72456

llvm-svn: 72455

llvm-svn: 72454

llvm-svn: 72453

possible. For example, it now emits

  %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 2, i64 %tmp, i64 1

instead of the equivalent but less obvious

  %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 %tmp, i64 19

llvm-svn: 72452

beyond their associated static array type.

I believe that this fixes a legitimate bug, because BasicAliasAnalysis
already has code to check for this condition that works for non-constant
indices, however it was missing the case of constant indices. With this
change, it checks for both.

This fixes PR4267, and miscompiles of SPEC 188.ammp and 464.h264.href.

llvm-svn: 72451

handling for every single opcode.

llvm-svn: 72447

FP_TO_XINT.  Necessary for some cleanups I'm working on.  Updated 
from the previous version (r72431) to fix a bug and make some things a 
bit clearer.

llvm-svn: 72445

llvm-svn: 72436

- added processors k8-sse3, opteron-sse3, athlon64-sse3, amdfam10, and
barcelona with appropriate sse3/4a levels
- added FeatureSSE4A for amdfam10 processors
in X86Subtarget:
- added hasSSE4A
- updated AutoDetectSubtargetFeatures to detect SSE4A
- updated GetCurrentX86CPU to detect family 15 with sse3 as k8-sse3 and
family 10h as amdfam10

New processor names match those used by gcc.

Patch by Paul Redmond!

llvm-svn: 72434

FP_TO_XINT.  Necessary for some cleanups I'm working on. 

llvm-svn: 72431

entries as there are basic blocks in the function.  LiveVariables::getVarInfo
creates a VarInfo struct for every register in the function, leading to
quadratic space use.  This patch changes the BitVector to a SparseBitVector,
which doesn't help the worst-case memory use but does reduce the actual use in
very long functions with short-lived variables.

llvm-svn: 72426

that of the LHS. It doesn't matter for correctness, but the LHS
is more likely than the RHS to be a pointer type in exotic cases,
and it's more tidy to have it return the integer type.

llvm-svn: 72424

division operation, don't attempt to use the operation's value as
the base of a getelementptr. This fixes PR4271.

llvm-svn: 72422

llvm-svn: 72414

llvm-svn: 72411

low-level alias() method, allowing it to reason more aggressively
about pointers into constant memory.  PR4189

llvm-svn: 72403

or use labels as members of structures for example. Also included a couple of
whitespace fixes.

llvm-svn: 72402

even on Core2, not just AMD processors which was a surprise to me.

llvm-svn: 72396

llvm-svn: 72395

llvm-svn: 72387

llvm-svn: 72376

in the case where a loop exit value cannot be computed, instead of only in
some cases while using SCEVCouldNotCompute in others. This simplifies
getSCEVAtScope's callers.

llvm-svn: 72375

bit clearer.

llvm-svn: 72374

corresponding integer type is legal.

llvm-svn: 72373

one of the RecursivelyDeleteTriviallyDeadInstructions.
Add a comment explaining why the cache needs to be cleared.

llvm-svn: 72372

Also fix 80 column violation.

llvm-svn: 72371

leave the original comparison in place if it has other uses, since the
other uses won't be dominated by the new comparison instruction.

llvm-svn: 72369

Use &Ops[0] instead, which is safe since Ops will never be empty here.

llvm-svn: 72368

comparison, use takeName to give the integer comparison a name.

llvm-svn: 72367

sending SCEVUnknowns to expandAddToGEP. This avoids the need for
expandAddToGEP to bend the rules and peek into SCEVUnknown
expressions.

Factor out the code for testing whether a SCEV can be factored by
a constant for use in a GEP index. This allows it to handle
SCEVAddRecExprs, by recursing.

As a result, SCEVExpander can now put more things in GEP indices,
so it emits fewer explicit mul instructions.

llvm-svn: 72366

of low bits of the other operand are preserved in the output.

llvm-svn: 72365

Fix by clearing the rewriter cache before deleting the trivially dead
instructions.
Also make InsertedExpressions use an AssertingVH to catch these
bugs easier.

llvm-svn: 72364

it's late, and I don't have any better ideas at the moment.  Fixes PR4257.

llvm-svn: 72363