ConcreteInt index for now.

llvm-svn: 59869

llvm-svn: 59868

clang executable (when built with gcc 4.2 on the mac) from 14519740 to 
14495028 bytes.  This shrinks individual object files as well: SemaChecking
from 23580->22248, SemaDeclObjc from 61368->57376, SemaExpr from 
115628->110516, as well as several others.

llvm-svn: 59867

llvm-svn: 59866

would not eat the "-1" in "0x0p-1", but LiteralSupport would accept
it when extensions are on.  This caused strangeness and failures 
when hexfloats were properly treated as an extension (not error)
in LiteralSupport.

llvm-svn: 59865

its call sites.  This makes it more explicit when the hasError flag is
getting set and removes a confusing difference in behavior between
PP.Diag and Diag in this code.

llvm-svn: 59863

(and carefully calculated) effect of allowing the compiler to reason
about the aliasing properties of DiagnosticBuilder object better,
allowing the whole thing to be promoted to registers instead of
resulting in a ton of stack traffic.

While I'm not very concerned about the performance of the Diag() method
invocations, I *am* more concerned about their code size and impact on the
non-diagnostic code.  This patch shrinks the clang executable (in 
release-asserts mode with gcc-4.2) from 14523980 to 14519816 bytes.  This
isn't much, but it shrinks the lexer from 38192 to 37776, PPDirectives.o
from 31116 to 28868 bytes, etc.

llvm-svn: 59862

llvm-svn: 59861

llvm-svn: 59860

llvm-svn: 59859

llvm-svn: 59858

llvm-svn: 59857

force the caller to check instead.  This eliminates the need (and the
risk!) of weird null DiagnosticBuilder's floating around.

llvm-svn: 59856

llvm-svn: 59853

llvm-svn: 59851

llvm-svn: 59850

one for building up the diagnostic that is in flight (DiagnosticBuilder)
and one for pulling structured information out of the diagnostic when
formatting and presenting it.

There is no functionality change with this patch.

llvm-svn: 59849

llvm-svn: 59848

In PTHLexer::DiscardToEndOfLine() use Lex() instead of AdvanceToken().  This handles transitions in the preprocessor state.

llvm-svn: 59845

llvm-svn: 59843

When creating the raw tokens for PTHLexer, make sure the token representing the file to include is checked for being an identifier.

llvm-svn: 59842

llvm-svn: 59840

llvm-svn: 59838

This version uses VLAs to represent arrays. I'll try an alternative way next, but I want this safe first.

llvm-svn: 59835

llvm-svn: 59832

llvm-svn: 59831

llvm-svn: 59829

themselves for gc API generation purposes.

llvm-svn: 59828

llvm-svn: 59827

llvm-svn: 59824

llvm-svn: 59822

llvm-svn: 59821

llvm-svn: 59820

llvm-svn: 59819

Enable some more operator overloading tests, and don't look into an identifier for functions that might not have one

llvm-svn: 59818

llvm-svn: 59806

llvm-svn: 59805

strings.  This allows us to have considerable flexibility in how
these things are displayed and provides extra information that
allows us to merge away diagnostics that are very similar.

Diagnostic modifiers are a string of characters with the regex
[-a-z]+ that occur between the % and digit.  They may 
optionally have an argument that can parameterize them.

For now, I've added two example modifiers.  One is a very useful
tool that allows you to factor commonality across diagnostics
that need single words or phrases combined.  Basically you can
use %select{a|b|c}4 with with an integer argument that selects
either a/b/c based on an integer value in the range [0..3).

The second modifier is also an integer modifier, aimed to help
English diagnostics handle plurality.  "%s3" prints to 's' if 
integer argument #3 is not 1, otherwise it prints to nothing.
I'm fully aware that 's' is an English concept and doesn't
apply to all situations (mouse vs mice).  However, this is very
useful and we can add other crazy modifiers once we add support
for polish! ;-)

I converted a couple C++ diagnostics over to use this as an
example, I'd appreciate it if others could merge the other
likely candiates.  If you have other modifiers that you want,
lets talk on cfe-dev.

llvm-svn: 59803

and fall through better.

llvm-svn: 59799

the Diagnostic class. Since we can already only have one diagnostic in 
flight at a time, this shrinks DiagnosticInfo.

This reduces DiagnosticInfo to being basically a rather crazy smart pointer
to a DiagnosticInfo :)

llvm-svn: 59798