This reverts commit r264813 / 6484b95d.

While using it in the shell is fine, this a problem when cc1as is
invoked directly by the driver because single quoting the clang full
version makes cc1as write out the version with the quotes in the final
binary.

If the user wants to copy-n-pastable output, it could use either -###
or CC_PRINT_OPTIONS=1 clang -v ...

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Before this change, we would pass all non-HFA record arguments on
Windows with byval. Byval often blocks optimizations and results in bad
code generation. Windows now uses the existing workaround that other
x86_32 platforms use.

I also expanded the workaround to handle C++ records with constructors
on Windows. On non-Windows platforms, we have to keep generating the
same LLVM IR prototypes if we want our bitcode to be ABI compatible.
Otherwise we will encounter mismatch issues like PR21573.

Essentially fixes PR27522 in Clang instead of LLVM.

Reviewers: hans

Differential Revision: http://reviews.llvm.org/D19756

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This follows the recent change in the wasm spec.

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Differential Revision: http://reviews.llvm.org/D17818


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Differential Revision: http://reviews.llvm.org/D19774


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Differential Revision: http://reviews.llvm.org/D19467



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Differential Revision: http://reviews.llvm.org/D19580




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Differential Revision: http://reviews.llvm.org/D19595



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This exposes the Clang API bindings clang_getChildDiagnostics (which returns a
CXDiagnosticSet) and clang_getNumDiagnosticsInSet / clang_getDiagnosticInSet (to
traverse the CXDiagnosticSet), and adds a helper children property in the Python
Diagnostic wrapper.

Also, this adds the missing OVERLOAD_CANDIDATE (700) cursor type.

Patch by Hanson Wang!

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r268127 is causing the PS4 bots to fail. Not sure what is causing it, but hopefully this will fix it.

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Differential Revision: http://reviews.llvm.org/D19749

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Summary:
Host and device types must match, otherwise when we pass values back and
forth between the host and device, we will get the wrong result.

This patch makes NVPTXTargetInfo inherit most of its type information
from the host's target info.

Reviewers: rsmith

Subscribers: cfe-commits, jhen, tra

Differential Revision: http://reviews.llvm.org/D19346

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In r268085 "[MS] Make #pragma pack use PragmaStack<> class." there was an
uninitialized variable 'Alignment', which caused the following failure:
  http://lab.llvm.org:8011/builders/sanitizer-ppc64be-linux/builds/1758
Zero-initialize the variable to fix this failure.


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r268127 broke some bots because it needs to specify a darwin target.

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Summary:
This patch adds a new driver warning -Wincompatible-sdk which notifies the user when they are mismatching the version min options and the sysroot.

The patch works by checking the sysroot (if present) for an SDK name, then matching that against the target platform. In the case of a mismatch it logs a warning.

Reviewers: bob.wilson, rsmith

Subscribers: rsmith, edward-san, cfe-commits

Differential Revision: http://reviews.llvm.org/D18088

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Add the ability to determine whether a format string argument is of a double type or not. This change is tested by clang-tidy in r268100.

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a selector, the entry should be complete, containing everything introduced by
that module and all modules it imports.

Before writing out the method pool of a module, we sync up the out of date
selectors by pulling in methods for the selectors, from all modules it imports.

In ReadMethodPool, after pulling in the method pool entry for module A, this
lets us skip the modules that module A imports.

rdar://problem/25900131


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Differential Revision: http://reviews.llvm.org/D19612


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Make implementation of #pragma pack consistent with other "stack" pragmas.
Use PragmaStack<> class instead of old representation of internal stack.
Don't change compiler's behavior.

TODO:
  1. Introduce diagnostics on popping named slots from pragma stacks.

Reviewer: rnk

Differential revision: http://reviews.llvm.org/D19727


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Fix crash in BuildCXXDefaultInitExpr when member of template class has
same name as the class itself.

Based on patch by Raphael "Teemperor" Isemann!

Differential Revision: http://reviews.llvm.org/D19721

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Summary:
Prepare to store requires-clause expression for access via
TemplateParameterList.

Reviewers: aaron.ballman, faisalv, rsmith

Subscribers: cfe-commits, nwilson

Differential Revision: http://reviews.llvm.org/D19220


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Summary: The Darwin armv7k ABI uses Dwarf EH, so we need to set the OS define correctly. Without this the gcc_personality fails to build.

Reviewers: t.p.northover

Subscribers: aemerson, cfe-commits, rengolin

Differential Revision: http://reviews.llvm.org/D19693

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This patch adds coverage for additional cases where implicit conversion can
occur (assignment and return).  It also adds tests for some cases where a
warning should occur but none is produced.  These are marked as FIXME.

Differential Revision: http://reviews.llvm.org/D16298


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The 'nodebug' attribute had hand-coded constraints; replace those with
a Subjects line in Attr.td.
Also add a missing test to verify the attribute is okay on an
Objective-C method.

Differential Revision: http://reviews.llvm.org/D19689


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After fixing PR26942 in r267004.


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Summary:
Conversions between float and half are only available when the
taraget has the half-precision extension. Guard these intrinsics
so that they don't cause crashes in the backend.

Fixes PR27550.

Reviewers: rengolin, t.p.northover

Subscribers: cfe-commits, aemerson, t.p.northover, rengolin

Differential Revision: http://reviews.llvm.org/D19665

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Slightly updated version, double-checked build and tests.
Improve implementation of MS pragmas that use stack + compatibility fixes.
This patch:
  1. Changes implementation of #pragma vtordisp to use PragmaStack class
     that other stack pragmas use;
  2. Fixes "#pragma vtordisp()" behavior - it shouldn't affect the stack;
  3. Supports "save-restore" of pragma stacks on enter / exit a C++ method
     body, as MSVC does.

TODO:
  1. Change implementation of #pragma pack to use the same approach;
  2. Introduce diagnostics on popping named stack slots, as MSVC does.

Reviewers:
  rnk, thakis

Differential revision: http://reviews.llvm.org/D19361


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Differential Revision: http://reviews.llvm.org/D19601



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Fixes a bug with analysis of data-sharing attributes in templates.

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This enables GNU C++ extension "Variable length array" by default.
Differential Revision: http://reviews.llvm.org/D18823

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Differential Revision: http://reviews.llvm.org/D19599



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if we are parsing a template specialization.

This commit makes changes to clear the TemplateParamScope bit and set
the TemplateParamParent field of the current scope to null if a template
specialization is being parsed.

Before this commit, Sema::ActOnStartOfLambdaDefinition would check
whether the parent template scope had any decls to determine whether
or not a template specialization was being parsed. This wasn't correct
since it couldn't distinguish between a real template specialization and
a template defintion with an unnamed template parameter (only template
parameters with names are added to the scope's decl list). To fix the
bug, this commit changes the code to check the pointer to the parent
template scope rather than the decl list.

rdar://problem/23440346

Differential Revision: http://reviews.llvm.org/D19175


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[OPENMP] Enable correct generation of runtime call when target directive is separated from teams directive by multiple curly brackets

http://reviews.llvm.org/D18474

This patch fixes a bug in code generation of the correct OpenMP runtime library call in presence of target and teams, when target is separated by teams with multiple curly brackets. The current implementation will not be able to see the teams directive inside target and issue a call to tgt_target instead of the correct one tgt_target_teams.



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mangled name if it happened to be declared in an 'extern "C++"' context. This
also causes us to use the '_ZL' mangling rather than the '_Z' mangling for
internal-linkage entities that are wrapped in a language linkage construct.


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Usually these parameters are used solely to initialize the field in the
initializer list, and there is no real shadowing confusion.

There is a new warning under -Wshadow called
-Wshadow-field-in-constructor-modified. It attempts to find
modifications of such constructor parameters that probably intended to
modify the field.

It has some false negatives, though, so there is another warning group,
-Wshadow-field-in-constructor, which always warns on this special case.
For users who just want the old behavior and don't care about these fine
grained groups, we have a new warning group called -Wshadow-all that
activates everything.

Fixes PR16088.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D18271

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with a generic lambda.

This patch fixes Sema::InstantiateVariableInitializer to switch to the
context of the variable before instantiating its initializer, which is
necessary to set the correct type for VarTemplateSpecializationDecl.

This is the first part of the patch that was reviewed here:
http://reviews.llvm.org/D19175

rdar://problem/23440346


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Set module flag PIELevel. Simplify code that sets PICLevel flag.

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Differential Revision: http://reviews.llvm.org/D19591


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