Expose -fmodule-name and -fmodule-map-file as driver options.

Review: http://llvm-reviews.chandlerc.com/D1974

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193069 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes PR17617: Crash on joining short if statements.

Now that we iterate on the formatting multiple times when we
have chains of preprocessor branches, we need to correctly reset
the token's previous and next pointer for the first / last token.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193071 91177308-0d34-0410-b5e6-96231b3b80d8
Fix to PR8880 (clang dies processing a for loop).

Due to statement expressions supported as GCC extension, it is possible
to put 'break' or 'continue' into a loop/switch statement but outside its
body, for example:

    for ( ; ({ if (first) { first = 0; continue; } 0; }); )

Such usage must be diagnosed as an error, GCC rejects it. To recognize
this and similar patterns the flags BreakScope and ContinueScope are
temporarily turned off while parsing condition expression.

Differential Revision: http://llvm-reviews.chandlerc.com/D1762


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193073 91177308-0d34-0410-b5e6-96231b3b80d8
Add the __ARM_ARCH_EXT_IDIV__ predefine. It is set to 1 if we have hardware divide in the mode that we are compiling in (depending on the target features), not defined if we don't. Should be compatible with the GCC conterpart. Also adding a -hwdiv option to overide the default behavior.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193074 91177308-0d34-0410-b5e6-96231b3b80d8
Set the default hardware division features for ARM cpus. Also set it as default for A32 armv8.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193075 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][msa] Fix definition of SLD instruction.

The second parameter of the SLD intrinsic is the number of columns (GPR) to 
slide left the source array.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193076 91177308-0d34-0410-b5e6-96231b3b80d8
Driver: Various string-related cleanups.

Also fixes some funky formatting.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193079 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup redundant include.

Patch by Daniel Marjamäki.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193093 91177308-0d34-0410-b5e6-96231b3b80d8
Extend test to show an alias can be before a definition.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193099 91177308-0d34-0410-b5e6-96231b3b80d8
Refactor DynTypedMatcher into a value type class, just like Matcher<T>.

Summary:
Refactor DynTypedMatcher into a value type class, just like Matcher<T>.
This simplifies its usage and removes the virtual hierarchy from Matcher<T>.
It also enables planned changes to replace MatcherInteface<T>.
Too many instantiaions of this class hierarchy has been causing Registry.cpp.o to bloat in size and number of symbols.

Reviewers: klimek

CC: cfe-commits, revane

Differential Revision: http://llvm-reviews.chandlerc.com/D1661

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193100 91177308-0d34-0410-b5e6-96231b3b80d8
Ignore -fstrength-reduce and -fno-strength-reduce.

GCC does the same.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193103 91177308-0d34-0410-b5e6-96231b3b80d8
Make this test pass -verify.

Instead of using not, just drop the fastcall attribute which was causing
an warning:

calling convention 'fastcall' ignored for this target

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193110 91177308-0d34-0410-b5e6-96231b3b80d8
Fix string assignment, David Blaikie suggestion.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193116 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Add the constraint to NEON scalar mla/mls instructions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193118 91177308-0d34-0410-b5e6-96231b3b80d8
Updated and added to the Consumed documentation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193120 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Refactor DynTypedMatcher into a value type class, just like Matcher<T>."

This reverts commit r193100.

It was failing to compile with MSVC 2012 while instantiating
llvm::Optional<DynTypedMatcher>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193123 91177308-0d34-0410-b5e6-96231b3b80d8
Re-enable passing MS inline asm test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193124 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Re-enable passing MS inline asm test."

Microsoft inline asm crashes on the hexagon bot for unknown reasons.

This reverts commit r193124.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193128 91177308-0d34-0410-b5e6-96231b3b80d8
Sema: Do not allow template declarations inside local classes

Summary:
Enforce the rule in C++11 [temp.mem]p2 that local classes cannot have
member templates.

This fixes PR16947.

N.B.  C++14 has slightly different wording to afford generic lambdas
declared inside of functions.

Fun fact:  Some formulations of local classes with member templates
would cause clang to crash during Itanium mangling, such as the
following:

void outer_mem() {
  struct Inner {
    template <typename = void>
    struct InnerTemplateClass {
      static void itc_mem() {}
    };
  };
  Inner::InnerTemplateClass<>::itc_mem();
}

Reviewers: eli.friedman, rsmith, doug.gregor, faisalv

Reviewed By: doug.gregor

CC: cfe-commits, ygao

Differential Revision: http://llvm-reviews.chandlerc.com/D1866

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193144 91177308-0d34-0410-b5e6-96231b3b80d8
Allow a header to be part of multiple modules.

This patch changes two things:

a) Allow a header to be part of multiple modules. The reasoning is that
in existing codebases that have a module-like build system, the same
headers might be used in several build targets. Simple reasons might be
that they defined different classes that are declared in the same
header. Supporting a header as a part of multiple modules will make the
transistion easier for those cases. A later step in clang can then
determine whether the two modules are actually compatible and can be
merged and error out appropriately. The later check is similar to what
needs to be done for template specializations anyway.

b) Allow modules to be stored in a directory tree separate from the
headers they describe.

Review: http://llvm-reviews.chandlerc.com/D1951

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193151 91177308-0d34-0410-b5e6-96231b3b80d8