Do not held on to DenseMap slot accross map insertion. The insertion may cause the map to grow rending the slot invalid.
Use this opportunity to use ValueMap instead of DenseMap.

llvm-svn: 85298

BL_pred and BLr9_pred.

llvm-svn: 85297

llvm-svn: 85296

http://llvm.org/PR5184, and beef up the comments to describe what both options
do and the risks of lazy compilation in the presence of threads.

llvm-svn: 85295

llvm-svn: 85294

llvm-svn: 85290

llvm-svn: 85287

llvm-svn: 85286

llvm-svn: 85285

CMakeLists.txt, Makefiles, ... it's better to whitelist what we really
want to install.

Patch by Ingmar Vanhassel!

llvm-svn: 85282

Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.

llvm-svn: 85281

instruction format that already takes care of setting this.

llvm-svn: 85280

(assembler,asmprinter, bc reader+writer) and document it.  Codegen
currently aborts on it.

llvm-svn: 85274

for the r/rr fragment of the multiclass AI_unary_rrot/AI_bin_rrot.

llvm-svn: 85271

llvm-svn: 85266

llvm-svn: 85258

llvm-svn: 85257

llvm-svn: 85256

llvm-svn: 85255

llvm-svn: 85254

thread safe either.

llvm-svn: 85253

llvm-svn: 85252

llvm-svn: 85251

llvm-svn: 85250

llvm-svn: 85248

llvm-svn: 85241

llvm-svn: 85235

llvm-svn: 85215

llvm-svn: 85210

llvm-svn: 85208

llvm-svn: 85207

with multiple return values it inserts a PHI to merge them all together.
However, if the return values are all the same, it ends up with a pointless
PHI and this pointless PHI happens to really block SRoA from happening in 
at least a silly C++ example written by Doug, but probably others.  This 
fixes rdar://7339069.

llvm-svn: 85206

llvm-svn: 85205

llvm-svn: 85204

llvm-svn: 85203

llvm-svn: 85198

llvm-svn: 85197

llvm-svn: 85192

do anything than return "I don't know" at the moment.

llvm-svn: 85189

llvm-svn: 85186