from a source file.
 - This allows CIndex to avoid iterating over all the top-level decls when using
   a PCH, which means we deserialize far fewer decls.

llvm-svn: 90559

test like this:

#line 4 "foo"

#define XX ?

#if XX
#endif

We now emit:

In file included from t.c:7:
foo:7:5: error: invalid token at start of a preprocessor expression
#if XX
    ^
foo:5:12: note: instantiated from:
#define XX ?
           ^

instead of:

In file included from t.c:7:
foo:7:5: error: invalid token at start of a preprocessor expression
#if XX
    ^
./t.h:6:12: note: instantiated from:
#define XX ?
           ^

(where the note doesn't obey #line or print the include stack when needed).

This fixes PR5617

llvm-svn: 90554

llvm-svn: 90550

Try to make the output of PlistDiagnostics more deterministic by sorting PathDiagnostics before they are emitted.  Fixes <rdar://problem/7439668>.

llvm-svn: 90478

Fix two more diagnostic-on-stderr instances that thought they could hide from me -- they thought wrong.

llvm-svn: 90442

llvm-svn: 90441

llvm-svn: 90438

Fix CompilerInstance::createOutputFile to use proper diagnostics, and (try to) update all clients to be able to handle failure.

llvm-svn: 90437

llvm-svn: 90436

llvm-svn: 90434

llvm-svn: 90433

llvm-svn: 90422

llvm-svn: 90414

llvm-svn: 90413

llvm-svn: 90379

llvm-svn: 90349

llvm-svn: 90348

llvm-svn: 90334

file. This is accomplished by introducing the notion of a "virtual"
file into the file manager, which provides a FileEntry* for a named
file whose size and modification time are known but which may not
exist on disk.

Added a cute little test that remaps both a .c file and a .h file it
includes to alternative files.

llvm-svn: 90329

llvm-svn: 90322

source files.

llvm-svn: 90311

llvm-svn: 90310

  -remap-file=from;to

which takes the file "from" and transparently replaces its contents
with the contents of the file "to" from the source manager's
perspective. This is the moral equivalent of

  cp from saved
  cp to from
  <call clang>
  cp saved from
  rm saved

without all of the pesky file copying.

llvm-svn: 90307

files with the contents of an arbitrary memory buffer. Use this new
functionality to drastically clean up the way in which we handle file
truncation for code-completion: all of the truncation/completion logic
is now encapsulated in the preprocessor where it belongs
(<rdar://problem/7434737>).

llvm-svn: 90300

(clang/driver) command line arguments (including the source file).
 - The arguments are expected to include the source file.

 - The idea is that even though this is a somewhat odd API, its the form which
   many tools can most easily use (for example, by interposing with the compiler).

Also, switch index-test's -ast-from-source to use this entry point, and provide
a -arg command line argument which can be used to test that the command line
arguments are handled correctly.

llvm-svn: 90288

llvm-svn: 90263

Exit the command line into <built-in> instead of going directly from the command line to the input file.

We passed <built-in> on the way in, so we should pass it again on the way out.

llvm-svn: 90250

Also, add an -ast-from-source option to index-test which allows index-test to
run on source files directly.

llvm-svn: 90223

llvm-svn: 90209

where it belongs.

llvm-svn: 90198

Add CodeGenOptions::{SoftFloat,FloatABI}, and update the all the (far too many) places to use this instead of using the backend -soft-float and -float-abi= options.

llvm-svn: 90127

Add TextDiagnosticBuffer::FlushDiagnostics, for forwarding the buffered diagnostics to a different diagnostics engine.

llvm-svn: 90125

llvm-svn: 90118

llvm-svn: 90117

stat a file but where mmaping it fails.  In this case, we emit an
error like:
t.c:1:10: fatal error: error opening file '../../foo.h'

instead of "cannot find file".

llvm-svn: 90110

llvm-svn: 90091

CompilerInstance already contains various objects that are used
throughout the entire run.

Also addresses Daniels review comments in:

http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20091123/024508.html

llvm-svn: 90073

function names outside of templates - they'll probably cause some damage there as
they're largely untested.

llvm-svn: 90064

Move LLVM backend options to explicit clang-cc / clang -cc1 options, which we then manually pass to the command line library; eventually the latter grossness should be fixed by a real API when creating the target machine.

llvm-svn: 90063

 - This is the last major parsing piece, main FIXMEs remain.

llvm-svn: 90059