llvm-svn: 155726

llvm-svn: 155725

<rdar://problem/11325085>.

llvm-svn: 155724

llvm-svn: 155723

The limit is set to an arbitrary 1000 recursion depth to avoid stack overflow
issues. <rdar://problem/11286839>.

llvm-svn: 155722

properly with how the code handles all-undef PHI nodes.

llvm-svn: 155721

llvm-svn: 155720

intended.

llvm-svn: 155719

intended.

llvm-svn: 155718

This is an incomplete implementation of the SCEV based code generation.
When finished it will remove the need for -indvars -enable-iv-rewrite.

For the moment it is still disabled. Even though it passes 'make polly-test',
there are still loose ends especially in respect of OpenMP code generation.

llvm-svn: 155717

llvm-svn: 155716

llvm-svn: 155708

llvm-svn: 155706

llvm-svn: 155705

* Model FPSW (the FPU status word) as a register.
* Add ISel patterns for the FUCOM*, FNSTSW and SAHF instructions.
* During Legalize/Lowering, build a node sequence to transfer the comparison
result from FPSW into EFLAGS. If you're wondering about the right-shift: That's
an implicit sub-register extraction (%ax -> %ah) which is handled later on by
the instruction selector.

Fixes PR6679. Patch by Christoph Erhardt!

llvm-svn: 155704

This change replaces projects/sample/autoconf/config.sub with a copy of
autoconf/config.sub.

llvm-svn: 155703

llvm-svn: 155701

Refactor IT handling not to store the bottom bit of the condition code in the mask operand in the MCInst.

llvm-svn: 155700

It broke stage2 build. stage1/clang sometimes crashed.

llvm-svn: 155699

llvm-svn: 155698

llvm-svn: 155697

llvm-svn: 155696

rdar://problem/11327790

llvm-svn: 155694

Use a deque instead of an ImmutableList in AnalysisConsumer to preserve the file order that functions are visited.  Should fix the buildbots.

llvm-svn: 155693

llvm-svn: 155692

llvm-svn: 155691

llvm-svn: 155690

llvm-svn: 155689

llvm-svn: 155687

llvm-svn: 155686

  instructions.
- However, it does support dmb, dsb, isb, mrs, and msr.
rdar://11331541

llvm-svn: 155685

Clean up the way modules are looked for when calling Target::GetSharedModule(...). We were ignoring remapped files, even if they were valid. Also if we have a  UUID, we should check our global module list first.

llvm-svn: 155683

instead of getAggregateElement. This has the advantage of being
more consistent and allowing higher-level constant folding to
procede even if an inner extract element cannot be folded.

Make ConstantFoldInstruction call ConstantFoldConstantExpression
on the instruction's operands, making it more consistent with 
ConstantFoldConstantExpression itself. This makes sure that
ConstantExprs get TargetData-aware folding before being handed
off as operands for further folding.

This causes more expressions to be folded, but due to a known
shortcoming in constant folding, this currently has the side effect
of stripping a few more nuw and inbounds flags in the non-targetdata
side of constant-fold-gep.ll. This is mostly harmless.

This fixes rdar://11324230.

llvm-svn: 155682

llvm-svn: 155681

of a mutable SmallPtrSet.  While iterating over LocalTUDecls, there were cases
where we could modify LocalTUDecls, which could result in invalidating an iterator
and an analyzer crash.  Along the way, switch some uses of std::queue to std::dequeue,
which should be slightly more efficient.

Unfortunately, this is a difficult case to create a test case for.

llvm-svn: 155680

llvm-svn: 155679

llvm-svn: 155678

to a given type, when the reason is that there is a non-type decl with
the same name.

llvm-svn: 155677

The required checks are moved to ChainInstruction() itself and the
policy decisions are moved to IVChain::isProfitableInc().

Also cache the ExprBase in IVChain to avoid frequent recomputations.

No functional change intended.

llvm-svn: 155676

No functional change intended.

llvm-svn: 155675