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

llvm-svn: 53215

llvm-svn: 53213

MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.

llvm-svn: 53212

and reused across SelectionDAGs.

This drastically reduces the number of calls to malloc/free made during
instruction selection, and improves memory locality.

llvm-svn: 53211

for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.

llvm-svn: 53210

llvm-svn: 53209

ATT asm printer just print register AsmName's instead of calling tolower on each charater of Name. This speeds it up by 10%.

llvm-svn: 53208

TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's.

llvm-svn: 53207

llvm-svn: 53206