llvm-svn: 183094

materialized temporary with the corresponding MaterializeTemporaryExpr. This is
groundwork for providing C++11's guaranteed static initialization for global
references bound to lifetime-extended temporaries (if the initialization is a
constant expression).

In passing, fix a couple of bugs where some evaluation failures didn't trigger
diagnostics, and a rejects-valid where potential constant expression testing
would assume that it knew the dynamic type of *this and would reject programs
which relied on it being some derived type.

llvm-svn: 183093

has an initializer.

llvm-svn: 183092

llvm-svn: 183091

       using two instructions (sethi and store).

llvm-svn: 183090

lifetime-extending temporaries in reference bindings.

llvm-svn: 183089

llvm-svn: 183088

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D905

llvm-svn: 183087

llvm-svn: 183086

clang would incorrectly not allow the following:

int x = true ? (throw 1) : 2;

The problem exists because we don't see beyond the parens.
This, in turn, causes us to believe that we are choosing between void
and int which we diagnose as an error.

Instead, allow clang to see the 'throw' inside the parens.

llvm-svn: 183085

In some cases, clang applies the C++ rules for computing the range of a
value when said value is an enum.

Instead, apply C semantics when in C mode.

llvm-svn: 183084

llvm-svn: 183083

PR12848: When emitting a local variable declared 'constexpr', always initialize it with a store or a memcpy, not by emitting the initializer expression. This is not required for correctness, but more closely aligns with people's expectations, and is cheap (since we've already evaluated the initializer).

llvm-svn: 183082

llvm-svn: 183081

index greater than the size of the vector is invalid. The shuffle may be
shrinking the size of the vector. Fixes a crash!

Also drop the maximum recursion depth of the safety check for this
optimization to five.

llvm-svn: 183080

llvm-svn: 183079

llvm-svn: 183078

Before: return a<b &&c> d;
After:  return a < b && c > d;
llvm-svn: 183077

Also simplify code a bit while there. No functionality change.

llvm-svn: 183076

No functionality change.

llvm-svn: 183075

llvm-svn: 183074

llvm-svn: 183073

llvm-svn: 183072

llvm-svn: 183071

Very sorry, it was committed from the wrong branch by mistake.

llvm-svn: 183070

llvm-svn: 183069

The MOV64ri64i32 instruction required hacky MCInst lowering because it
was allocated as setting a GR64, but the eventual instruction ("movl")
only set a GR32. This converts it into a so-called "MOV32ri64" which
still accepts a (appropriate) 64-bit immediate but defines a GR32.
This is then converted to the full GR64 by a SUBREG_TO_REG operation,
thus keeping everyone happy.

This fixes a typo in the opcode field of the original patch, which
should make the legact JIT work again (& adds test for that problem).

llvm-svn: 183068

llvm-svn: 183067

Removed a comment above an include which is unnecessary and added a missing closing @} for a doxygen comment.

llvm-svn: 183065

llvm-svn: 183064

Also added a few more method comments and performed some copy editing.

llvm-svn: 183063

Jordan has pointed out that it is valuable to warn in cases when the arguments to init escape.
For example, NSData initWithBytes id not going to free the memory.

llvm-svn: 183062

This also makes TableGen able to compute sizes/offsets of synthesized
indices representing tuples.

llvm-svn: 183061

Fixes rdar:14036816, PR16130.

There is an opportunity to compute precise trip counts for 'or'
expressions and multi-exit loops.
rdar:14038809: Optimize trip count computation for multi-exit loops.

To do this we need to record the fact that ExitLimit assumes NSW. When
it does not we can safely assume that the loop trip count is the
minimum ExitLimt across all subexpressions and loop exits.

llvm-svn: 183060

seems to have caused PR16192 and other JIT related failures.

llvm-svn: 183059

llvm-svn: 183058

llvm-svn: 183057

llvm-svn: 183056

llvm-svn: 183055

llvm-svn: 183054