This is consistent/interoperable with GCC 4.7 (& __cxa_deleted_function isn't
present in 4.4 - not sure when it got added, but you'll need something with
that function available for this to work).

llvm-svn: 166069

Because PNaCl bitcode must be target-independent, it uses some
different bitcode representations from other targets (e.g. byval and
sret for structures). This means that without additional type
information, it cannot meet some native ABI requirements for some
targets (e.g. passing structures containing unions by value on
x86-64). To allow generation of code which uses the correct native
ABIs, we also support triples such as x86_64-nacl, which uses
target-dependent IR (as opposed to le32-nacl, which uses byval and
sret).

To allow interoperation between the two types of code, this patch adds
a calling convention attribute to be used in code compiled with the
target-dependent triple, which will generate code using the le32-style
bitcode. This calling convention does not need to be explicitly
supported in the backend because it determines bitcode representation
rather than native conventions (the backend just needs to undersand
how to handle byval and sret for the Native Client OS).

This patch implements __attribute__((pnaclcall)) to generate calls in
bitcode according to the le32 bitcode conventions, an attribute which
is accepted by any Native Client target, but issues a warning
otherwise.

llvm-svn: 166065

We generalize r166040 to handle ABI alignment issues for all types.

rdar://12439123

llvm-svn: 166052

We expand varargs in clang and the call site is handled in the back end, it is
hard to match exactly how illegal vectors are handled in the backend. Therefore,
we legalize the illegal vector types in clang:
if (Size <= 32), legalize to i32.
if (Size == 64), legalize to v2i32.
if (Size == 128), legalize to v4i32.
if (Size > 128), use indirect.

rdar://12439123

llvm-svn: 166043

We create an aligned temporary space and copy the content over from ap.cur to
the temporary space. This is necessary if the natural alignment of the type is
greater than the ABI alignment.

rdar://12439123

llvm-svn: 166040

don't try the normal GetOrCreateLLVM. The latter could drop the weak
atrtibute on the second reference, if there is no explicit declaration
of the aliasee.

llvm-svn: 166032

metadata.

llvm-svn: 166023

  if (CGM.getModuleDebugInfo())
    DebugInfo = CGM.getModuleDebugInfo()
into a call:
  maybeInitializeDebugInfo();

This is a simplification for a possible future fix of PR13942.

llvm-svn: 166019

Use the Attributes::get method which takes an AttrVal value directly to simplify the code a bit. No functionality change.

llvm-svn: 166010

llvm-svn: 165988

See PR14013.

llvm-svn: 165962

Move the Attributes::Builder outside of the Attributes class and into its own class named AttrBuilder. No functionality change.

llvm-svn: 165961

[asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. clang part: for FunctionPass we need to run asan at a different point, otherwise it will run before inlining

llvm-svn: 165937

llvm-svn: 165925

Convert the uses of the Attributes class over to the new format. The
Attributes::get method call now takes an LLVM context so that the attributes
object can be uniquified and stored.

llvm-svn: 165918

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