representation.  This eliminates the 'DILocation' MDNodes for 
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before.  Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209

llvm-svn: 100208

llvm-svn: 100207

llvm-svn: 100206

Let's try this again.  Re-apply 100143 including an apparent missing
<string> include.  For some reason the buildbot choked on this while my
builds did not.  It's probably due to a difference in system headers.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100204

llvm-svn: 100199

Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191

llvm-svn: 100187

it can't currently observe such changes automatically.

llvm-svn: 100186

Need to start from (char*)(Slab+1), and not from (char*)Slab+1.
This fixes crashes in Win64 debug mode.
Thanks to Nicolas Capens!

llvm-svn: 100184

llvm-svn: 100183

llvm-svn: 100177

llvm-svn: 100176

in particular, they end up aligning strings at 16-byte boundaries, and
there's no way for GlobalOpt to check OptForSize.

llvm-svn: 100172

After trivial coalescing, the MI being visited may have become a copy. Avoid adding it to CSE hash table since copies aren't being considered for CSE and they may be deleted.
rdar://7819990

llvm-svn: 100170

folder to be tolerant of debug info following the
branch(es) at the end of a block.

llvm-svn: 100168

llvm-svn: 100167

unaligned loads into aligned loads.

llvm-svn: 100166

llvm-svn: 100165

llvm-svn: 100164

on Mac OS X to use @rpath rather than an absolute
path.  Also allowed the version to be set using an
environment variable.

llvm-svn: 100163

This fixes test/Transforms/GlobalOpt/gv-align.ll.

llvm-svn: 100161

llvm-svn: 100160

This is more efficient than adding them to the worklist and then ignoring them.

llvm-svn: 100158

likely not a bitcode file at all, rather than being a bitcode file which
is truncated. Check for this case and issue a more relevant error message.

llvm-svn: 100156

llvm-svn: 100148

llvm-svn: 100147

llvm-svn: 100146

llvm-svn: 100145

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100143

llvm-svn: 100137

Do not eagerly record known previous location. DBG_VALUE may not cause a new label due to one or other reason.

llvm-svn: 100134

llvm-svn: 100133

llvm-svn: 100132

llvm-svn: 100131

one place.  This removes the template function added in svn 94690.

llvm-svn: 100130

blow out the stack for really big functions.  Start by fixing an easy case.

llvm-svn: 100126

- Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type.

llvm-svn: 100118

llvm-svn: 100117

Update comment, rename a local variable.

llvm-svn: 100116