llvm-svn: 53259

llvm-svn: 53258

llvm-svn: 53257

rather than depending on LiveVariables.  This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).

llvm-svn: 53256

This one is x86-32-Darwin specific.

llvm-svn: 53255

This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

llvm-svn: 53254

llvm-svn: 53253

Constraints. These concepts are already present in the current ValueState, but
the implementation is monolothic. Making ValueState more modular opens up new
design choices for customizing the analysis engine.

In the context of the analysis engine, the "Environment" is the binding between
Expr* (expressions) and intermediate symbolic values (RValues).

llvm-svn: 53252

llvm-svn: 53250

llvm-svn: 53249

llvm-svn: 53248

Do not CSE DEBUG_LOC, DBG_LABEL, DBG_STOPPOINT, DECLARE, and EH_LABEL SDNode's. This improves compile time slightly at -O0 -g.

llvm-svn: 53246

soft float: experiments show that targets aren't
expecting this for results or for operands.  Add
support select/select_cc result soft float and
correct operand soft float for these.

llvm-svn: 53245

in LegalizeTypes.

llvm-svn: 53244

llvm-svn: 53243

llvm-svn: 53242

out every volatile load and store.  This is useful for tracking 
down insane volatile memory bugs.

llvm-svn: 53241

into phis.  This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first 
predecessor for multiple successors.  Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll

llvm-svn: 53240

llvm-svn: 53239

llvm-svn: 53238

llvm-svn: 53237

the name prefix when we change them from internal to external.  This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.

llvm-svn: 53236

llvm-svn: 53235

llvm-svn: 53234

llvm-svn: 53233

soft float.

llvm-svn: 53231

llvm-svn: 53230

parameter attributes.

llvm-svn: 53228

llvm-svn: 53227

llvm-svn: 53226

argument number.

llvm-svn: 53225

Call and Invoke in a single method instead of having it hardcoded in multiple
places.

llvm-svn: 53224

call attributes.

llvm-svn: 53223

llvm-svn: 53222

llvm-svn: 53221

1) evaluate [v]fcmp true/false with undefs to true or false instead
   of undef.
2) fix vector comparisons with undef to return a vector result instead 
   of i1
3) fix vector comparisons with evaluatable results to return vector
   true/false instead of i1 true/false (PR2529)

llvm-svn: 53220

llvm-svn: 53219

llvm-svn: 53218

llvm-svn: 53217

llvm-svn: 53216