instructions' optimization flags.

llvm-svn: 82934

llvm-svn: 82933

malloc isn't needed.

llvm-svn: 82932

llvm-svn: 82931

llvm-svn: 82930

llvm-svn: 82929

when the loop inspects the bitcast operand.

llvm-svn: 82928

llvm-svn: 82927

to directive handlers and allows for easier extensibility.

I only switched a few over for now.

llvm-svn: 82926

llvm-svn: 82925

llvm-svn: 82924

These are important to push up to encourage jump threading.  This shrinks 176.gcc a bit.

llvm-svn: 82923

<rdar://problem/6914474> checker doesn't realize that variable might
have been assigned if a pointer to that variable was passed to another
function via a structure

The problem here was the RegionStoreManager::InvalidateRegion didn't
invalidate the bindings of invalidated regions.  This required a
rewrite of this method using a worklist.

As part of this fix, changed ValueManager::getConjuredSymbolVal() to
require a 'void*' SymbolTag argument.  This tag is used to
differentiate two different symbols created at the same location.

llvm-svn: 82920

simple constants for the true/false value of the select.  We now
do phi translation etc.  This really fixes PR4895 :)

llvm-svn: 82917

llvm-svn: 82915

that are phi nodes.  Also tighten up FoldOpIntoPhi to treat constantexpr
operands to phis just like other variables, avoiding moving constantexpr
computations around.

Patch by Daniel Dunbar.

llvm-svn: 82913

llvm-svn: 82912

llvm-svn: 82911

llvm-svn: 82910

llvm-svn: 82909

llvm-svn: 82908

llvm-svn: 82907

DEBUG_RUNTIME.

llvm-svn: 82906

aren't in canonical loop-simplify form, since it doesn't itself depend
on LoopSimplify. This means handling loops without preheaders and loops
with multiple backedges.

llvm-svn: 82905

llvm-svn: 82904

that is deleted in some situations. This fixes a use-after-free.

llvm-svn: 82903

llvm-svn: 82902

rotating the loop, since loop rotation is a very significant change.

llvm-svn: 82901

llvm-svn: 82900

test whether it properly dominates the loop header. This is equivalent
when the loop has a preheader, and has the advantage of working when
the loop doesn't have a preheader. Since IVUsers doesn't Require
LoopSimplify, the loop isn't guaranteed to have a preheader.

llvm-svn: 82899

llvm-svn: 82898

llvm-svn: 82897

in RegisterStatistic.

llvm-svn: 82896

CMake generate VS2008 project and CLang and LLVM compile without problem on VS2008. Remove obsolete remark

llvm-svn: 82895

llvm-svn: 82894

llvm-svn: 82893

llvm-svn: 82892

allows matching and remembering a string and then matching and
verifying that the string occurs later in the file.

Change X86/xor.ll to use this in some cases where the test was
checking for an arbitrary register allocation decision.

llvm-svn: 82891

LangRef entry too.

llvm-svn: 82890

update all the callers.

llvm-svn: 82889