This is a follow-up patch for r185524. Being assert enabled does not mean
that DEBUG() is enabled, so we need to check the existence of DEBUG() itself.

llvm-svn: 185619

llvm-svn: 185618

Stop using the ISD::EXCEPTIONADDR and ISD::EHSELECTION when lowering
landing pad arguments. These nodes were previously legalized into
CopyFromReg nodes, but that never worked properly because the
CopyFromReg node weren't guaranteed to be  scheduled at the top of the
basic block.

This meant the exception pointer and selector registers could be
clobbered before being copied to a virtual register.

This patch copies the two physical registers to virtual registers at
the beginning of the basic block, and lowers the landingpad instruction
directly to two CopyFromReg nodes reading the *virtual* registers. This
is safe because virtual registers don't get clobbered.

A future patch will remove the ISD::EXCEPTIONADDR and ISD::EHSELECTION
nodes.

llvm-svn: 185617

Compute the insertion point from the end of the basic block instead of
skipping labels from the front.

This caused failures in landing pads when live-in copies where inserted
before instruction selection.

llvm-svn: 185616

This will soon be tested by exception handling working at all.

llvm-svn: 185615

llvm-svn: 185614

llvm-svn: 185613

llvm-svn: 185612

llvm-svn: 185611

Use SmallVectorImpl instead of SmallVector for iterators and references to avoid specifying the vector size unnecessarily.

llvm-svn: 185610

The motivation is to suppresses false use-after-free reports that occur when calling
std::list::pop_front() or std::list::pop_back() twice. The analyzer does not
reason about the internal invariants of the list implementation, so just do not report
any of warnings in std::list.

Fixes radar://14317928.

llvm-svn: 185609

This suppresses a false positive in std::hash_map.
Fixes  radar://14255587.

llvm-svn: 185608

llvm-svn: 185607

Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.

llvm-svn: 185606

llvm-svn: 185605

substitution failed, report that as a substitution failure rather than
pretending that there was no default argument.

The test cases in PR15673 have exposed some pre-existing poor diagnostics here.

llvm-svn: 185604

llvm-svn: 185603

llvm-svn: 185602

Patch by pashev.igor.

llvm-svn: 185601

Revert "Simplify landing pad lowering."
Revert "Remove the EXCEPTIONADDR, EHSELECTION, and LSDAADDR ISD opcodes."

llvm-svn: 185600

types when deciding on validity of a property
inclusion. // rdar://14345082

llvm-svn: 185599

previously didn't work if a mem-initializer-id had a template argument which
contained parentheses or braces.

We now implement a simple rule: just look for a ') {' or '} {' that is not
nested. The '{' is assumed to start the function-body. There are still two
cases which we misparse, where the ') {' comes from a compound literal or
from a lambda. The former case is not valid C++, and the latter will probably
not be valid C++ once DR1607 is resolved, so these seem to be of low value,
and we do not regress on them with this change. EDG and g++ also misparse
both of these cases.

llvm-svn: 185598

llvm-svn: 185597

These exception-related opcodes are not used any longer.

llvm-svn: 185596

Stop using the ISD::EXCEPTIONADDR and ISD::EHSELECTION when lowering
landing pad arguments. These nodes were previously legalized into
CopyFromReg nodes, but that never worked properly because the
CopyFromReg node weren't guaranteed to be  scheduled at the top of the
basic block.

This meant the exception pointer and selector registers could be
clobbered before being copied to a virtual register.

This patch copies the two physical registers to virtual registers at
the beginning of the basic block, and lowers the landingpad instruction
directly to two CopyFromReg nodes reading the *virtual* registers. This
is safe because virtual registers don't get clobbered.

A future patch will remove the ISD::EXCEPTIONADDR and ISD::EHSELECTION
nodes.

llvm-svn: 185595

This function adds a live-in physical register to an MBB and ensures
that it is copied to a virtual register immediately.

llvm-svn: 185594

llvm-svn: 185593

Have ARMBaseRegisterInfo::getCallPreservedMask return the 'correct' mask for the GHC calling convention.

This is purely academic because GHC calls are always tail calls so the register mask will never be used; however, this change makes the code clearer and brings the ARM implementation of the GHC calling convention in line with the X86 implementation. Also, it might save someone else some time trying to figuring out what is happening...

llvm-svn: 185592

migrating setter/getter methods to an eventual
property declaraiton. This is wip.
// rdar://14345082

llvm-svn: 185591

to reduce indentation level
No functionality changed.

llvm-svn: 185590

llvm-svn: 185589

for them and update all uses.

llvm-svn: 185588

In the ARM back-end, build_vector nodes are lowered to a target specific
build_vector that uses floating point type. 
This works well, unless the inserted bitcasts survive until instruction
selection. In that case, they incur moves between integer unit and floating
point unit that may result in inefficient code.

In other words, this conversion may introduce artificial dependencies when the
code leading to the build vector cannot be completed with a floating point type.

In particular, this happens when loads are not aligned.

Before this patch, in that case, the compiler generates general purpose loads
and creates the floating point vector from them, instead of directly using the
vector unit.

The patch uses a vector friendly sequence of code when the inserted bitcasts to
floating point survived DAGCombine.

This is done by a target specific DAGCombine that changes the target specific
build_vector into a sequence of insert_vector_elt that get rid of the bitcasts.

<rdar://problem/14170854>

llvm-svn: 185587

llvm-svn: 185586

(and for consistency).

llvm-svn: 185585

llvm-svn: 185584

Long double is 64 bits on FreeBSD PPC, so the f128 entry is superfluous.

llvm-svn: 185583

Long double is 64 bits on FreeBSD PPC, so the f128 entry is superfluous.

llvm-svn: 185582

llvm-svn: 185581

PR16456 reported that Clang implements a hybrid between AltiVec's
"Keyword and Predefine Method" and its "Context Sensitive Keyword
Method," where "bool" is always a keyword, but "vector" and "pixel"
are context-sensitive keywords.  This isn't permitted by the AltiVec
spec.  For consistency with gcc, this patch implements the Context
Sensitive Keyword Method for bool, and stops treating true and false
as keywords in Altivec mode.

The patch removes KEYALTIVEC as a trigger for defining these keywords
in include/clang/Basic/TokenKinds.def, and adds logic for "vector
bool" that mirrors the existing logic for "vector pixel."  The test
case is taken from the bug report.

llvm-svn: 185580