per Chris' comments.  Adjust testcases to match.

llvm-svn: 90304

llvm-svn: 90299

llvm-svn: 90298

llvm-svn: 90297

llvm-svn: 90293

llvm-svn: 90292

llvm-svn: 90291

llvm-svn: 90290

llvm-svn: 90282

llvm-svn: 90281

instead of returning an ambiguous reason.

llvm-svn: 90275

llvm-svn: 90271

- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".

llvm-svn: 90269

llvm-svn: 90260

llvm-svn: 90258

llvm-svn: 90257

framework omits differentiated edge sources in the case where the labels
are empty strings.

llvm-svn: 90254

llvm-svn: 90253

llvm-svn: 90252

llvm-svn: 90251

Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found.

llvm-svn: 90247

llvm-svn: 90246

llvm-svn: 90243

We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.

llvm-svn: 90240

llvm-svn: 90236

llvm-svn: 90230

llvm-svn: 90222

llvm-svn: 90221

llvm-svn: 90220

llvm-svn: 90217

llvm-svn: 90216

llvm-svn: 90214

llvm-svn: 90212

precisely, which prevents us from infinitely peeling the loop.

llvm-svn: 90211

llvm-svn: 90210

explicitly so we can check arguments.

llvm-svn: 90199

This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to
coalesce because intervals are more complicated, so handling them first gives a greater chance of success.

llvm-svn: 90194

llvm-svn: 90189

PEDANTIC defaults to ON and WERROR default to off.

Also add MSVC warnings. To disable warnings add the flags
LLVM_ENABLE_WARNINGS (default on).

Patch by Tobias Grosser!

llvm-svn: 90188

llvm-svn: 90186