llvm-svn: 87087

 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for locations and types.

llvm-svn: 87007

llvm-svn: 86263

llvm-svn: 86256

using the new LLVM support for this.  This is temporarily hiding
behind horrible and ugly #ifdefs until the time when the optimizer
is stable (hopefully a week or so).  Until then, lets make it "opt in" :)

llvm-svn: 85446

1. CGF now has fewer bytes of state (one pointer instead of a vector).
2. The generated code is determinstic, instead of getting labels in
   'map order' based on pointer addresses.
3. Clang now emits one 'indirect goto switch' for each function, instead
   of one for each indirect goto.  This fixes an M*N = N^2 IR size issue
   when there are lots of address-taken labels and lots of indirect gotos.
4. This also makes the default cause do something useful, reducing the
   size of the jump table needed (by one).

llvm-svn: 83952

This is not yet enabled.

llvm-svn: 83399

llvm-svn: 82910

llvm-svn: 81346

llvm-svn: 78946

llvm-svn: 78259

llvm-svn: 78084

llvm-svn: 77862

llvm-svn: 77854

llvm-svn: 77629

llvm-svn: 77012

expressions.
 - This generally catches the important case of noreturn functions.

 - With the last two changes, we are down to 152 unreachable blocks emitted on
   403.gcc, vs the 1805 we started with.

llvm-svn: 76364

llvm-svn: 76362

 - Emit variable declarations as "simple", we want to avoid forcing the creation
   of a dummy basic block, but still need to make the variable available for
   later use.

 - With that, we can now skip IRgen for other unreachable statements (which
   don't define a label).

 - Anders, I added two fixmes on calls to EmitVLASize, can you check them?

llvm-svn: 76361

llvm-svn: 76090

type.

llvm-svn: 72459

llvm-svn: 72439

llvm-svn: 72210

function calls.  For a program like this:

#include <stdio.h>
static __inline__ __attribute__((always_inline)) 
int bar(int x) { return 4; }
int main() { 
  int X = bar(4);
  printf("%d\n", X);
}

clang was not outputing any debug info for the body of main().  This is
because the backend is getting confused by the region_start/end that clang
is emitting for block scopes.  For now, just disable these (matching llvm-gcc),
this stuff is in progress of rework anyway.

llvm-svn: 70889

llvm-svn: 70835

hopefully, this fixes PR4144 without any regressions.

llvm-svn: 70823

this fixes http://llvm.org/bugs/show_bug.cgi?id=3373#c20

llvm-svn: 70685

llvm-svn: 70680

the input.  This is part of PR3373.

llvm-svn: 70677

like bitfields.  incidentally llvm-gcc crashes on this sort of thing also. :)

llvm-svn: 70675

llvm-svn: 70672

processing the outputs, no functionality change.

llvm-svn: 70671

llvm-svn: 70523

llvm-svn: 70136

instead of passing it around in addition to it.

llvm-svn: 70135

the enum along with some other data.

llvm-svn: 70114

llvm-svn: 68992

 - <rdar://problem/6732143> Crash when generating @synchronize for
   zero-cost exception

 - Thanks to Anders for helping track down the problem.

llvm-svn: 68186

really horrible extensions that are disabled by default but that can
be accepted by -fheinous-gnu-extensions (but which always emit a 
warning when enabled).

As our first instance of this, implement PR3788/PR3794, which allows
non-lvalues in inline asms in contexts where lvalues are required. bleh.

llvm-svn: 66910

llvm-svn: 66598