llvm-svn: 41803

instruction. These are implemented with xor which will modify the conditional
code. They should be rematerialized as move instructions.

llvm-svn: 41802

class object.

llvm-svn: 41801

llvm-svn: 41800

llvm-svn: 41799

llvm-svn: 41798

that refer to direct function calls.

Modified interface of LiveVariables to only track liveness of VarDecls.
This cleans up a bunch of edge cases, and removed the bug just mentioned.

llvm-svn: 41797

llvm-svn: 41796

refers to a function.

llvm-svn: 41795

"Audit" to "Observer" and "Observe"

llvm-svn: 41794

llvm-svn: 41792

llvm-svn: 41790

llvm-svn: 41787

llvm-svn: 41786

optional.

llvm-svn: 41785

Fix for VisualStudio.  It is treating a 2 bit enum as a signed int for comparison purposes, causing failures.  Using an extra bit fixes it.

llvm-svn: 41784

llvm-svn: 41783

first region, just deallocate all but the last region in the list.

llvm-svn: 41782

registers. The scheduler is now responsible for emitting them.

llvm-svn: 41781

for each function.  This was the behavior prior to the following patch:

http://llvm.org/viewvc/llvm-project?view=rev&revision=41779

llvm-svn: 41780

"CFGVisitor", which now handles all the boilerplate for iterating over
the function definitions in a translation unit and building the CFGs.
This logic was previously replicated for each driver option that used
CFGs.

The options -dump-cfg, -view-cfg, -check-dead-stores, and
-dump-live-variables now use this refactored code.

llvm-svn: 41779

llvm-svn: 41776

by flagging the associated instructions as being trivially rematerializable.

llvm-svn: 41775

llvm-svn: 41774

llvm-svn: 41769

The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768

Silenced a couple of warnings.
Added *.vcproj file for new clangAnalysis library.
Renamed Basic to clangBasic projects.

llvm-svn: 41767

Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register 
liveins and we let frontend solve type issue, not lowering code :)

llvm-svn: 41763

llvm-svn: 41762

llvm-svn: 41759

Patch by Sterling Stein!

llvm-svn: 41758

but never used.

Fix a bug in LiveVariables where uses on the LHS of self-assign
operators (e.g +=, *=, etc) would not be properly recorded in the
liveness state of the variable.

llvm-svn: 41757

that contained no declarations, or when a variable is declared but never used.

llvm-svn: 41756

llvm-svn: 41755

to variables that are no longer live.  This analysis is built on top
of CFGs and the LiveVariables analysis.

changes to driver:
 added driver option "-check-dead-stores" to run the analysis

llvm-svn: 41754

 - Finished 99% of analysis logic.  Probably a few bugs.
 - Added querying functions to query liveness.
 - Added better pretty printing of liveness.
 - Added better bookkeeping of per-variable liveness information.
 - Added LiveVariablesAuditor interface, which allows "lazy" querying
   of intra-basic block liveness information.

Driver:
 - Minor cleanups involved in dumping liveness information.

llvm-svn: 41753

The goal of this commit is to get just enough Sema support to recognize Objective-C classes
as types. That said, the AST nodes ObjcInterfaceDecl, ObjcInterfaceType, and ObjcClassDecl are *very*
preliminary.

The good news is we no longer need -parse-noop (aka MinimalActions) to parse cocoa.m.

llvm-svn: 41752

Constify to catch bugs.

llvm-svn: 41751

Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747

Also, fix a case, when target doesn't have weak symbols supported.

llvm-svn: 41746