Kirtzidis!

llvm-svn: 49603

not # of operands as an input.

llvm-svn: 49599

Doug Gregor!

llvm-svn: 49598

llvm-svn: 49593

llvm-svn: 49592

llvm-svn: 49591

llvm-svn: 49587

(but simple!) datastructures in the rewriter with a more complex but
more efficient one.

This replaces the Deltas vector with a specialized BTree that makes
delta lookups much more efficient.  This speeds up -emit-html on a 500K
.i file from 157.154 to 27.127 seconds on my machine (5.8x).

While this code is functional, it isn't very pretty, I have much 
refactoring planned for it, and will remove the USE_VECTOR ifdef.
Stay tuned.

llvm-svn: 49586

optimized x86-64 (and x86) calls so that they work (... at least for
my test cases).

Should fix the following problems:

Problem 1: When i introduced the optimized handling of arguments for
tail called functions (using a sequence of copyto/copyfrom virtual
registers instead of always lowering to top of the stack) i did not
handle byval arguments correctly e.g they did not work at all :).

Problem 2: On x86-64 after the arguments of the tail called function
are moved to their registers (which include ESI/RSI etc), tail call
optimization performs byval lowering which causes xSI,xDI, xCX
registers to be overwritten. This is handled in this patch by moving
the arguments to virtual registers first and after the byval lowering
the arguments are moved from those virtual registers back to
RSI/RDI/RCX.

llvm-svn: 49584

llvm-svn: 49583

llvm-svn: 49582

llvm-svn: 49575

on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572

8-byte-aligned data.

llvm-svn: 49571

Moved IdDeclInfo class to anonymous namespace.
Replaced array with a std::vector.

llvm-svn: 49570

llvm-svn: 49569

llvm-svn: 49568

llvm-svn: 49567

llvm-svn: 49566

llvm-svn: 49565

Still need some boilerplate in BugReporter to report bugs at the end
of a function (not associated with a particular statement).

llvm-svn: 49564

change the state (and thus the GREndPathNodeBuilder automatically contructs a
node).

llvm-svn: 49563

evaluating transfer functions at the end-of-path.

llvm-svn: 49561

llvm-svn: 49558

llvm-svn: 49556

GRSimpleVals::EvalCal(), and don't change reference counts.

Remove "getDoNothingSummary()", as a NULL summary does the same thing.

Added temporary hack for the "Get" rule for objects that return a pointer type:
treat them as non-owned CF objects.

Added test case to detect the release of a non-owned object.

llvm-svn: 49555

llvm-svn: 49553

llvm-svn: 49552

llvm-svn: 49551

llvm-svn: 49550

llvm-svn: 49548

llvm-svn: 49547

llvm-svn: 49544

llvm-svn: 49543

Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled.

llvm-svn: 49542

llvm-svn: 49540

llvm-svn: 49539

llvm-svn: 49538

llvm-svn: 49535

llvm-svn: 49532