fails to return a value, to make debugging this issue easier.

llvm-svn: 165914

llvm-svn: 165900

llvm-svn: 165888

Eli discovered that __noop's sema behavior also needs some love. I filed
PR14081 for that and intend to improve it.

llvm-svn: 165886

llvm-svn: 165885

Patch by Jeremiah Zanin.

llvm-svn: 165849

from a floating-point type where the source value is not in the range of
representable values of the destination type.

llvm-svn: 165843

For 64-bit PowerPC SVR4, an aggregate containing only one
floating-point field (float, double, or long double) must be passed in
a register as though just that field were present.  This patch
addresses the issue during Clang code generation by specifying in the
ABIArgInfo for the argument that the underlying type is passed
directly in a register.  The included test case verifies flat and
nested structs for the three data types.

llvm-svn: 165816

llvm-svn: 165741

llvm-svn: 165731

Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.

llvm-svn: 165726

with x86/ARM architecture

llvm-svn: 165722

and Native Client

llvm-svn: 165715

llvm-svn: 165710

in a category class method, don't read 'isa' pointer. Instead,
save the desired OBJC_METACLASS_$_ClassName in 
__DATA,__objc_superrefs and read that without reading any 
isa pointers. // rdar://12459358

llvm-svn: 165674

This more accurately reflects its use: this flag is set when a method
matches the getter or setter name for a property in the same class,
and does not actually specify whether or not the definition of the method
will be synthesized (either implicitly or explicitly with @synthesize).

This renames the setter and backing field as well, and changes the
(soon-to-be-obsolete?) XML dump format to use 'property_accessor'
instead of 'synthesized'.

llvm-svn: 165626

The issue arises when coercing to/from types of different sizes. We need
to be certain that the allocation on either end has sufficient room for
the coerced type. When it doesn't, we need to make room, copy across,
and then proceed. PR11905 handled the case of storing function arguments
back into allocas in the function prolog, this patch handles the case of
setting up the function arguments in a call expression.

This is actually significantly simpler than the fix for PR11905. It ends
up being a trivial change to create a temporary alloca when the source
is too small and memcpy across. This should preserve the compile-time
fast-isel benefits of doing gep+load sequences and avoiding FCAs.

Reviewed by Benjamin and Evgeniy (who fixed PR11905).

llvm-svn: 165615

namespace. Use the attribute's enum value instead. No functionality change
intended.

llvm-svn: 165611

Have 'addFnAttr' take the attribute enum value. Then have it build the attribute object and add it appropriately. No functionality change.

llvm-svn: 165596

llvm-svn: 165584

llvm-svn: 165583

-fcatch-undefined-behavior: store the type name directly at the end of a type descriptor. 5% binary size reduction due to fewer relocations.

llvm-svn: 165572

llvm-svn: 165536

opaque layer is responsible for knowing where that specific attribute is stored.

llvm-svn: 165489

llvm-svn: 165395

GCC has always supported this on PowerPC and 4.8 supports it on all platforms,
so it's a good idea to expose it in clang too. LLVM supports this on all targets.

llvm-svn: 165362

llvm-svn: 165343

PR14029, clang part.

llvm-svn: 165289

 - outside C++, return undef (behavior is not undefined unless the value is used)
 - in C++, with -fcatch-undefined-behavior, perform an appropriate trap
 - in C++, produce an 'unreachable' (behavior is undefined immediately)

llvm-svn: 165273

up being contracted during codegen.

llvm-svn: 165197

false is used as a baseline here, we may want to allow contraction in some of
the cases.  Found by valgrind.

llvm-svn: 165156

Most of the pieces for this were already in place, but a proper EmitVAArg
is needed for aggregates and complex numbers to be handled.  Although the
va_list for 64-bit PowerPC SVR4 consists of GPRs 3 through 10 together with
the overflow portion of the parameter save area, we can treat va_list as
pointing to contiguous memory for all parameters, since the back end forces
the parameter GPRs to memory for varargs functions.

There is no need at this time to model parameters and return values beyond
what the DefaultABIInfo provides.

llvm-svn: 165143

Then, rename it getPointeeCXXRecordDecl and give it a nice doc comment,
and actually use it.

No intended functionality change.

llvm-svn: 165077

Clang will now honor the FP_CONTRACT pragma and emit LLVM
fmuladd intrinsics for expressions of the form A * B + C (when they occur in a
single statement).

llvm-svn: 164989

CodeGen: Copy tail padding when we're not dealing with a trivial copy assign or move assign operator.

This fixes a regression from r162254, the optimizer has problems reasoning
about the smaller memcpy as it's often not safe to widen a store but making it
smaller is.

llvm-svn: 164917

llvm-svn: 164907

llvm-svn: 164904

observe their addresses (taking their address gives the vtable slot) so we are
free to merge their definitions.

llvm-svn: 164864

struct assignment.

llvm-svn: 164853

Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164766

llvm-svn: 164769