llvm-svn: 126003

llvm-svn: 126002

llvm-svn: 126001

Patch by Kaelyn Uhrain!

llvm-svn: 126000

(This is infact direct copy from DIFactory, which is disappearing soon.)

llvm-svn: 125989

llvm-svn: 125988

llvm-svn: 125987

llvm-svn: 125986

Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.
This time with a fix that avoids using invalidated DenseMap iterator.

llvm-svn: 125984

need to be pulled out of the pass manager when the user specifies 
-fno-builtin.  It can intelligently determine which libcalls to
optimize based on what is enabled in TargetLibraryInfo.  This 
allows -fno-builtin-foo to work someday.

llvm-svn: 125981

All new virtual registers created for spilling or splitting point back to their original.

llvm-svn: 125980

llvm-svn: 125978

to hack on memset, memcpy etc.

llvm-svn: 125974

llvm-svn: 125973

llvm-svn: 125972

with a triple.

llvm-svn: 125970

llvm-svn: 125969

llvm-svn: 125968

The rewriter works almost identically to -rewriter=trivial, except it also
eliminates any identity copies.

This makes the new register allocators independent of VirtRegRewriter.cpp which
will be going away at the same time as RegAllocLinearScan.

llvm-svn: 125967

Add FixedLenDecoderEmitter, the skeleton of a new disassembler emitter for fixed-length instruction encodings.
A major part of its (eventual) goal is to support a much cleaner separation between disassembly callbacks
provided by the target and the disassembler emitter itself, i.e. not requiring hardcoding of knowledge in tblgen
like the existing disassembly emitters do.

The hope is that some day this will allow us to replace the existing non-Thumb ARM disassembler and remove
some of the hacks the old one introduced to tblgen.

llvm-svn: 125966

query about available library functions.  For now this just has 
memset_pattern16, which exists on darwin, but it can be extended for a 
bunch of other things in the future.

llvm-svn: 125965

llvm-svn: 125964

llvm-svn: 125960

parallel with the rest of the tools directory as it depends on Clang.

llvm-svn: 125956

llvm-svn: 125949

testcases for the disassembler to make sure it still works for "msr".

llvm-svn: 125948

llvm-svn: 125943

llvm-svn: 125845

overflow.  These subsume some existing equality transforms, so zap those.

llvm-svn: 125843

llvm-svn: 125842

llvm-svn: 125832

llvm-svn: 125831

llvm-svn: 125830

taken (and used!).  This prevents merging the blocks (invalidating
the block addresses) in a case like this:

#define _THIS_IP_  ({ __label__ __here; __here: (unsigned long)&&__here; })

void foo() {
  printf("%p\n", _THIS_IP_);
  printf("%p\n", _THIS_IP_);
  printf("%p\n", _THIS_IP_);
}

which fixes PR4151.

llvm-svn: 125829

llvm-svn: 125828

This is part of a futile attempt to not "break" bizzaro
code like this:

 l1:
  printf("l1: %p\n", &&l1);
  ++x;

  if( x < 3 ) goto l1;


Previously we'd fold &&l1 to 1, which is fine per our semantics
but not helpful to the user.

llvm-svn: 125827

llvm-svn: 125824

llvm-svn: 125805

llvm-svn: 125804

llvm-svn: 125802