extractelement(load).

llvm-svn: 81239

llvm-svn: 81235

llvm-svn: 81227

of using llvm-as, now that opt supports this.

llvm-svn: 81226

llvm-svn: 81223

files directly.

llvm-svn: 81222

that get created during loop unswitching, and fix SplitBlockPredecessors'
LCSSA updating code to create new PHIs instead of trying to just move
existing ones.

Also, optimize Loop::verifyLoop, since it gets called a lot. Use
searches on a sorted list of blocks instead of calling the "contains"
function, as is done in other places in the Loop class, since "contains"
does a linear search. Also, don't call verifyLoop from LoopSimplify or
LCSSA, as the PassManager is already calling verifyLoop as part of
LoopInfo's verifyAnalysis.

llvm-svn: 81221

makes the code faster.

llvm-svn: 81220

llvm-svn: 81219

llvm-svn: 81217

llvm-svn: 81215

instruction to insert before can be end(). getDebugLoc on
end() returns an invalid value, therefore use the debug
loc of the call instruction, and give it to InsertLabel.

llvm-svn: 81207

llvm-svn: 81206

llvm-svn: 81205

When remat'ing and destination virtual register has a sub-register index. Make sure the sub-register class matches the register class of the remat'ed instruction definition register class.

llvm-svn: 81204

llvm-svn: 81203

llvm-svn: 81202

llvm-svn: 81201

llvm-svn: 81200

llvm-svn: 81199

in the .td files.  This gets us down to 18 failures in codegen/x86 with the
new asmprinter.

llvm-svn: 81198

llvm-svn: 81197

subreg32 modifiers.

llvm-svn: 81196

the problem with subreg32 modifiers.  This gets all of Olden working
with the new asmprinter.

llvm-svn: 81195

Also, fix unit tests.

llvm-svn: 81194

performance.

llvm-svn: 81193

llvm-svn: 81192

 - This adds 'make check-lit' from the top-level Makefile.

llvm-svn: 81191

 - make install && man $(llvm-config --prefix)/share/man/man1/lit.1 for more
   information.

llvm-svn: 81190

llvm-svn: 81189

llvm-svn: 81188

depth first order, so it wouldn't process unreachable blocks.
When compiling at -O0, late dead block elimination isn't done
and the bad instructions got to isel.

llvm-svn: 81187

llvm-svn: 81186

extractelement operations into a bitcast of the pointer,
then a gep, then a scalar load.  Disable this when the vector
only has one element, because it leads to infinite loops in
instcombine (PR4908).

This transformation seems like a really bad idea to me, as it
will likely disable CSE of vector load/stores etc and can be
better done in the code generator when profitable.  This
goes all the way back to the first days of packed types,
r25299 specifically.

I'll let those people who care about the performance of vector
code decide what to do with this.

llvm-svn: 81185

llvm-svn: 81184

Fix some const correctness problems in SelectInst.

llvm-svn: 81183

so "Assert1(isa<>); cast<>" is a valid idiom.

Actually check the PHI node's odd-numbered operands for BasicBlock-ness, like
the comment said.

llvm-svn: 81182

null in the case of an empty struct, so don't try to call getNumValues
on it.

llvm-svn: 81180

Make the verifier more robust by avoiding unprotected cast<> calls. Notably,
Assert1(isa<>); cast<> is not safe as Assert1 does not terminate the program.

llvm-svn: 81179

llvm-svn: 81177