register defs and uses after each successful coalescing.
- Also removed a number of hacks and fixed some subtle kill information bugs.

llvm-svn: 47167

machine instr will change its definition register.

llvm-svn: 47166

IncompleteArrayType.  This should make code dealing with both incomplete 
and variable length arrays much more readable, plus it allows properly 
making the distinction between isVariableArrayType() and 
isVariablyModifiedType().  The patch is a little big, but it's 
strightforward. so I don't think there should be any issues.

llvm-svn: 47165

llvm-svn: 47164

with a hard-coded operand number.

llvm-svn: 47163

that doesn't support it.  Per Chris.

llvm-svn: 47162

llvm-svn: 47161

llvm-svn: 47160

thing.  Some cleanups that can be done independently of the fix.

llvm-svn: 47158

llvm-svn: 47157

llvm-svn: 47156

llvm-svn: 47155

llvm-svn: 47154

llvm-svn: 47153

going on with mixing scopes, though.

llvm-svn: 47152

llvm-svn: 47151

llvm-svn: 47150

llvm-svn: 47149

llvm-svn: 47148

llvm-svn: 47147

--grsimple except that it visualizes the ExplodedGraph using dot and
outputs the current function being analyzed.  --grsimple is now silent
except when it emits diagnostics.

llvm-svn: 47146

it follows the order of the enum, not alphabetical.
The motivation is to make -mattr=+ssse3,+sse41
select SSE41 as it ought to.  Added "ignored"
enum values of 0 to PPC and SPU to avoid compiler
warnings.

llvm-svn: 47143

referenced by an RValue, instead of having to query the type of the RValue.

Modified ValueState::RemoveDeadBindings to also prune dead symbols.

llvm-svn: 47142

Fixes PR 2030.

llvm-svn: 47141

null-dereferences or bad control-flow red.

llvm-svn: 47140

llvm-svn: 47139

being consistent with the rest of the APInt implementation.

llvm-svn: 47138

Moved driver logic for --grsimple to GRSimpleVals.cpp.

llvm-svn: 47137

clang namespace.

llvm-svn: 47136

Still some cleanup to do, but this initial checkin compiles and runs correctly.

llvm-svn: 47135

from RValues to GRTransferFuncs/GRSimpleVals.

llvm-svn: 47131

token.  Diagnose when the { is missing in objc @try blocks instead of aborting.

llvm-svn: 47130

llvm-svn: 47129

llvm-svn: 47128

which allows us to kill a target-specific node.

llvm-svn: 47127

llvm-svn: 47126

these operations) into GRTransferFuncs and its subclasses.  Originally all
of this logic was handled by the class RValue, but in reality different
analyses will want more flexibility on how they evaluate different values.

Transfer functions migrated so far: "Cast"

llvm-svn: 47125

Update all references to it and place a redirection
page at the old address.

llvm-svn: 47124

llvm-svn: 47123

the return value is zero-extended if it isn't
sign-extended.  It may also be any-extended.
Also, if a floating point value was returned
in a larger floating point type, pass 1 as the
second operand to FP_ROUND, which tells it
that all the precision is in the original type.
I think this is right but I could be wrong.
Finally, when doing libcalls, set isZExt on
a parameter if it is "unsigned".  Currently
isSExt is set when signed, and nothing is
set otherwise.  This should be right for all
calls to standard library routines.

llvm-svn: 47122