Make LoopInfoBase more generic, in preparation for having MachineLoopInfo.  This involves a small interface change.

llvm-svn: 44348

llvm-svn: 44325

llvm-svn: 44323

llvm-svn: 44320

llvm-svn: 44318

trivial difference in function attributes, allow calls to it to
be converted to direct calls.  Based on a patch by Török Edwin.
While there, move the various lists of mutually incompatible
parameters etc out of the verifier and into ParameterAttributes.h.

llvm-svn: 44315

llvm-svn: 44293

from the old ADCE implementation (there it was
correct because the transform was being done
for read-only functions).

llvm-svn: 44287

llvm-svn: 44284

llvm-svn: 44281

llvm-svn: 44280

exceptions, so don't turn invokes of them into
calls.

llvm-svn: 44278

llvm-svn: 44262

llvm-svn: 44234

fix an occasional nonrepeatable bootstrap failure we've
been seeing on Darwin.

llvm-svn: 44202

llvm-svn: 44188

Thanks to him for his detailed analysis of the problem.

llvm-svn: 44162

from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.

Make bugpoint use this interface to pass the BBs list to the child bugpoint.

llvm-svn: 44101

by inserting unreachable after no-return calls.

llvm-svn: 44099

patch on friday.

llvm-svn: 44068

and simplifycfg in the rare cases when it is needed.

llvm-svn: 44044

fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and 
rdar://5585488.

llvm-svn: 43949

llvm-svn: 43941

llvm-svn: 43940

llvm-svn: 43939

llvm-svn: 43897

llvm-svn: 43893

llvm-svn: 43780

llvm-svn: 43779

all compute the same value.

llvm-svn: 43777

type of SV has changed from what it originally was.
However we need the store width of the original.

llvm-svn: 43775

llvm-svn: 43745

llvm-svn: 43743

If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through  LastValueMap.

llvm-svn: 43728

llvm-svn: 43694

that there is no padding.

llvm-svn: 43691

Also cleaned up some comments in source files.

llvm-svn: 43674

or getTypeSizeInBits as appropriate in ScalarReplAggregates.
The right change to make was not always obvious, so it would
be good to have an sroa guru review this.  While there I noticed
some bugs, and fixed them: (1) arrays of x86 long double have
holes due to alignment padding, but this wasn't being spotted
by HasStructPadding (renamed to HasPadding).  The same goes
for arrays of oddly sized ints.  Vectors also suffer from this,
in fact the problem for vectors is much worse because basic
vector assumptions seem to be broken by vectors of type with
alignment padding.   I didn't try to fix any of these vector
problems.  (2) The code for extracting smaller integers from
larger ones (in the "int union" case) was wrong on big-endian
machines for integers with size not a multiple of 8, like i1.
Probably this is impossible to hit via llvm-gcc, but I fixed
it anyway while there and added a testcase.  I also got rid of
some trailing whitespace and changed a function name which
had an obvious typo in it.

llvm-svn: 43672

metric is way off for these in general, and this works around
buggy code like that in PR1764.  we'll see if there is a big
performance impact of this.  If so, I'll revert it tomorrow.

llvm-svn: 43668

llvm-svn: 43652