llvm-svn: 12317

a zero value is the most likely way to cause further simplification, so we do it.

llvm-svn: 12197

llvm-svn: 12086

llvm-svn: 12021

Note that this is a band-aid put over a band-aid.  This just undisables
tail duplication in on very specific case that it seems to work in.

llvm-svn: 11989

Do not just inject a new prototype.

llvm-svn: 11951

Create a new AddUsesToWorkList method
optimize memmove/set/cpy of zero bytes to a noop.

llvm-svn: 11941

llvm-svn: 11940

This is a really minor thing, but might help out the 'switch statement induction'
code in simplifycfg.

llvm-svn: 11900

llvm-svn: 11821

llvm-svn: 11801

llvm-svn: 11775

llvm-svn: 11774

Also, turn 'shr int %X, 1234' into 'shr int %X, 31'

llvm-svn: 11768

llvm-svn: 11742

whether this is the sign bit or not, so check unsigned comparisons as well.

llvm-svn: 11740

llvm-svn: 11737

llvm-svn: 11735

with "predication"

llvm-svn: 11734

hot 164.gzip loop.

llvm-svn: 11702

phi.ll:test4

llvm-svn: 11494

Regression/Transforms/InstCombine/xor.ll:test20

llvm-svn: 11492

llvm-svn: 11490

llvm.setjmp/llvm.longjmp intrinsics.

llvm-svn: 11482

llvm-svn: 11474

llvm-svn: 11376

end of the function.

llvm-svn: 11313

more of a testcase for profiling information than anything that should reasonably
be used, but it's a starting point.  When I have more time I will whip this into
better shape.

llvm-svn: 11311

occurs in the program.

llvm-svn: 11249

llvm-svn: 11210

even if it is wierd in some way.

llvm-svn: 11207

llvm-svn: 11202

This fixed PR16 "[lowerinvoke] The -lowerinvoke pass does not insert calls to setjmp/longjmp"

llvm-svn: 11195

This causes the JIT, or LLC'd program to print out a nice message, explaining
WHY the program aborted.

llvm-svn: 11184

keeps finding more code motion opportunities now that the dominators are correct!

llvm-svn: 11142

llvm-svn: 11140

llvm-svn: 11139

The problem is that the dominator update code didn't "realize" that it's
possible for the newly inserted basic block to dominate anything.  Because
it IS possible, stuff was getting updated wrong.

llvm-svn: 11137

llvm-svn: 11114

llvm-svn: 11083