llvm-svn: 132108

llvm-svn: 132107

Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.

llvm-svn: 132106

rdar://problem/6920088

llvm-svn: 132105

makes it into a special member function. This is very bad and can lead
to all sorts of nastiness including implicit member functions violating
the One Definition Rule. This should probably be made ill-formed in a
later version of the standard, but for now we'll just warn.

llvm-svn: 132104

Use a proper worklist for use-def traversal without holding onto an
iterator. Now that we process all IV uses, we need complete logic for
resusing existing derived IV defs. See HoistStep.

llvm-svn: 132103

Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 .  This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0.

Originally r130717, but was backed out due to an ObjC regression.

llvm-svn: 132102

This doesn't change functionality (much), but it allows for a more fine-grained
eviction policy. The current policy only compares spill weights, and that is not
always the best thing to do.  Spill weights are designed to serve linear scan,
and they don't consider live range splitting.

Add a mechanism so canEvict() can request that a live range be evicted and
split/spilled. This is to avoid infinite eviction loops.

llvm-svn: 132101

static analyzer: when conservatively evaluating functions, don't invalidate the values of globals when the called function is strlen.

llvm-svn: 132100

Rewrite fast-isel integer cast handling to handle more cases, and to be simpler and more consistent.

The practical effects here are that x86-64 fast-isel can now handle trunc from i8 to i1, and ARM fast-isel can handle many more constructs involving integers narrower than 32 bits (including loads, stores, and many integer casts).

rdar://9437928 .

llvm-svn: 132099

llvm-svn: 132098

llvm-svn: 132097

llvm-svn: 132096

Add a little spice to the script to allow us to specify a function name to break at and to disassemble.

Usage: disasm.py [-n name] executable-image
       By default, it breaks at and disassembles the 'main' function.
llvm-svn: 132090

Pattern is not. Thanks Nick for catching this!

llvm-svn: 132089

by entering 'Ctrl-D' or 'quit'.

llvm-svn: 132088

llvm-svn: 132087

llvm-svn: 132086

them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.

llvm-svn: 132084

llvm-svn: 132083

llvm-svn: 132082

Part of rdar://9119939

llvm-svn: 132081

behind implicit moves. We now correctly identify move constructors and
assignment operators and update bits on the record correctly. Generation
of implicit moves (declarations or definitions) is not yet supported.

llvm-svn: 132080

llvm-svn: 132079

llvm-svn: 132078

llvm-svn: 132077

been defined in MipsInstrFPU.td.

llvm-svn: 132076

llvm-svn: 132074

llvm-svn: 132073

llvm-svn: 132072

llvm-svn: 132071

llvm-svn: 132070

llvm-svn: 132067

llvm-svn: 132066

return 0 if there are no function calls made. 

llvm-svn: 132065

llvm-svn: 132064

llvm-svn: 132063

llvm-svn: 132062

'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'

atexit really expects a "void f(void)" function.

llvm-svn: 132061

llvm-svn: 132060