Revert r208417 (olista01 'ARM: HFAs must be passed in consecutive registers'). This is a followon commit from r208413 which broke the LLVM bots.

llvm-svn: 208422

Use auto to avoid duplicating the type.

llvm-svn: 208374

Cleanup setFunctionDefinitionAttributes.

Use more specific type, update comments and name style.

llvm-svn: 208328

Small simplification: Reduce the use of cast<>.

llvm-svn: 208320

[OPENMP] Initial codegen for '#pragma omp parallel'

llvm-svn: 208077

Fix pr19653.

Warn if an alias requests a section other than the aliasee section.

llvm-svn: 207997

Small refactoring, no functionality change.

llvm-svn: 207991

XCore target: fix bug in dereferencing null pointer.

Also add basic cpp ABI tests where they differ from C ABI output.

llvm-svn: 207834

XCore target: Add TypeString meta data to IR output.

This includes the addition of the virtual function:
TargetCodeGenInfo::EmitTargetMD()

llvm-svn: 207832

AST: Mangle reference temporaries reliably

Summary:
Previously, we would generate a single name for all reference
temporaries and allow LLVM to rename them for us. Instead, number the
reference tem

AST: Mangle reference temporaries reliably

Summary:
Previously, we would generate a single name for all reference
temporaries and allow LLVM to rename them for us. Instead, number the
reference temporaries as we build them in Sema.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3554

llvm-svn: 207776

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CodeGen: Reference temporaries inherit visibility

Reference temporaries inherited many properties from the variable that
they correspond to but visibility wasn't one of them.

llvm-svn: 207496

CodeGen: Fix linkage of reference temporaries

Summary:
A reference temporary should inherit the linkage of the variable it
initializes. Otherwise, we may hit cases where a reference temporary
would

CodeGen: Fix linkage of reference temporaries

Summary:
A reference temporary should inherit the linkage of the variable it
initializes. Otherwise, we may hit cases where a reference temporary
wouldn't have the same value in all translation units.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3515

llvm-svn: 207451

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CodeGen: Cleanup variable linkage calculation

Almost all linkage calculation for VarDecls occured inside of
GetLLVMLinkageVarDefinition except for static data members. Centralize
the logic so that

CodeGen: Cleanup variable linkage calculation

Almost all linkage calculation for VarDecls occured inside of
GetLLVMLinkageVarDefinition except for static data members. Centralize
the logic so that it can be more readily reused.

No functionality change.

llvm-svn: 207241

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CodeGen: Refactor linkage/visibility calculation

It turns out that linkage and visibility have rather similar logic for
both functions and non-variable globals. Split the calculation out so
that bo

CodeGen: Refactor linkage/visibility calculation

It turns out that linkage and visibility have rather similar logic for
both functions and non-variable globals. Split the calculation out so
that both sides may share this code.

No functionality change.

llvm-svn: 207239

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Remove some empty statements

Cleanup only.

llvm-svn: 206709

CodeGen: Use LLVM's InstrProfReader in -fprofile-instr-use=

Update clang to use the InstrProfReader from LLVM to read
instrumentation based profile data. This also switches us from the
naive text fo

CodeGen: Use LLVM's InstrProfReader in -fprofile-instr-use=

Update clang to use the InstrProfReader from LLVM to read
instrumentation based profile data. This also switches us from the
naive text format to the binary format, since that's what's
implemented in the reader.

llvm-svn: 206658

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CodeGen: Emit warnings for out of date profile data during PGO

This adds a warning that triggers when profile data doesn't match for
the source that's being compiled with -fprofile-instr-use=. This

CodeGen: Emit warnings for out of date profile data during PGO

This adds a warning that triggers when profile data doesn't match for
the source that's being compiled with -fprofile-instr-use=. This fires
only once per translation unit, as warning on every mismatched
function would be quite noisy.

llvm-svn: 206322

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CodeGen: Move PGO initialization into Release()

Emitting the PGO initialization in EmitGlobalFunctionDefinition is
inefficient, since this only has an effect once per module. We move
this to Releas

CodeGen: Move PGO initialization into Release()

Emitting the PGO initialization in EmitGlobalFunctionDefinition is
inefficient, since this only has an effect once per module. We move
this to Release() with the rest of the once-per-module logic.

llvm-svn: 205977

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CodeGen: Clean up CommonLinkage calculation

No functionality change.

llvm-svn: 205972

CodeGen: Emit some functions as weak_odr under -fms-compatibility

Summary:
MSVC always emits inline functions marked with the extern storage class
specifier. The result is something similar to the

CodeGen: Emit some functions as weak_odr under -fms-compatibility

Summary:
MSVC always emits inline functions marked with the extern storage class
specifier. The result is something similar to the opposite of
__attribute__((gnu_inline)).

This extension is also available in C.

This fixes PR19264.

Reviewers: rnk, rsmith

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3207

llvm-svn: 205485

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Disable this-return optimizations when targeting iOS 5 and earlier.

Clang implements the part of the ARM ABI saying that certain functions
(e.g., constructors and destructors) return "this", but App

Disable this-return optimizations when targeting iOS 5 and earlier.

Clang implements the part of the ARM ABI saying that certain functions
(e.g., constructors and destructors) return "this", but Apple's version of
gcc and llvm-gcc did not. The libstdc++ dylib on iOS 5 was built with
llvm-gcc, which means that clang cannot safely assume that code from the C++
runtime will correctly follow the ABI. It is also possible to run into this
problem when linking with other libraries built with gcc or llvm-gcc. Even
though there is no way to reliably detect that situation, it is most likely
to come up when targeting older versions of iOS. Disabling the optimization
for any code targeting iOS 5 solves the libstdc++ problem and has a reasonably
good chance of fixing the issue for other older libraries as well.
<rdar://problem/16377159>

llvm-svn: 205272

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Implement the 'optnone' attribute, which suppresses most optimizations
on a function.

llvm-svn: 205255

ARM64: initial clang support commit.

This adds Clang support for the ARM64 backend. There are definitely
still some rough edges, so please bring up any issues you see with
this patch.

As with the L

ARM64: initial clang support commit.

This adds Clang support for the ARM64 backend. There are definitely
still some rough edges, so please bring up any issues you see with
this patch.

As with the LLVM commit though, we think it'll be more useful for
merging with AArch64 from within the tree.

llvm-svn: 205100

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CodeGen: Don't crash when replacing functions

The peculiarities of C99 create scenario where an LLVM IR function
declaration may need to be replaced with a definition baring a different
type because

CodeGen: Don't crash when replacing functions

The peculiarities of C99 create scenario where an LLVM IR function
declaration may need to be replaced with a definition baring a different
type because the prototype and definition are not required to agree.

However, we were not properly deferring this when it occurred.

This fixes PR19280.

llvm-svn: 205099

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Handle and warn on aliases to weak aliases.

This produces valid IR now that llvm rejects aliases to weak aliases and warns
the user that the resolution is not changed if the weak alias is overridden

Handle and warn on aliases to weak aliases.

This produces valid IR now that llvm rejects aliases to weak aliases and warns
the user that the resolution is not changed if the weak alias is overridden.

llvm-svn: 204935

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