to set the parent when a MachineBasicBlock is added to a MachineFunction.

llvm-svn: 13716

which simplifies the code

llvm-svn: 13707

Changed copy constructor to set parent, prev, and next pointers to null.

llvm-svn: 13706

llvm-svn: 13702

llvm-svn: 13696

llvm-svn: 13695

llvm-svn: 13694

caller was in an SCC.

llvm-svn: 13693

llvm-svn: 13692

we make the transformation.  This allows us to use interprocedural alias
analyses successfully.

llvm-svn: 13691

llvm-svn: 13690

llvm-svn: 13689

that do not have builtin support for garbage collection.

llvm-svn: 13688

llvm-svn: 13687

class is now in the BasicAliasAnalysis.cpp file

llvm-svn: 13684

alias analysis implementations are special: they do not autoforward to a
chained implementation of alias analysis

llvm-svn: 13683

llvm-svn: 13682

llvm-svn: 13681

llvm-svn: 13680

assert.

llvm-svn: 13679

llvm-svn: 13676

llvm-svn: 13666

llvm-svn: 13665

llvm-svn: 13661

a direct callee may have indirect callees and so may have changed.

llvm-svn: 13649

llvm-svn: 13643

llvm-svn: 13618

fix the really bad code we're getting on PPC.

llvm-svn: 13609

a full 64-bit address, it must be adjusted to fit in the branch instruction's
immediate field. (This is only used in the reoptimizer, for now.)

llvm-svn: 13608

Fix a typo in a debug message.

llvm-svn: 13607

effects as) CloneFunctionInto().

llvm-svn: 13601

CloneTrace, and because it is primarily an operation on ValueMaps.  It
is now a global (non-static) function which can be pulled in using
ValueMapper.h.

llvm-svn: 13600

correct error message.

llvm-svn: 13590

Add better comments, including a better head-of-file comment.
Prune #includes.
Fix a FIXME that Chris put here by using doInitialization().
Use DEBUG() to print out debug msgs.
Give names to basic blocks inserted by this pass.
Expand tabs.
Use InsertProfilingInitCall() from ProfilingUtils to insert the initialize call.

llvm-svn: 13581

MachineBasicBlocks instead.

llvm-svn: 13568

Get rid of separate numbering for LLVM BasicBlocks; use the automatically
generated MachineBasicBlock numbering.

llvm-svn: 13567

LLVM BasicBlock operands.

llvm-svn: 13566

llvm-svn: 13565

in the size calculation.

This is not something you want to see:
Loop Unroll: F[main] Loop %no_exit Loop Size = 2 Trip Count = 2147483648 - UNROLLING!

The problem was that 2*2147483648 == 0.

Now we get:
Loop Unroll: F[main] Loop %no_exit Loop Size = 2 Trip Count = 2147483648 - TOO LARGE: 4294967296>100

Thanks to some anonymous person playing with the demo page that repeatedly
caused zion to go into swapping land.  That's one way to ensure you'll get
a quick bugfix.  :)

Testcase here: Transforms/LoopUnroll/2004-05-13-DontUnrollTooMuch.ll

llvm-svn: 13564

and passing a null pointer into a function.

For this testcase:

void %test(int** %X) {
  store int* null, int** %X
  call void %test(int** null)
  ret void
}

we now generate this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov DWORD PTR [%EAX], 0
        mov DWORD PTR [%ESP], 0
        call test
        add %ESP, 12
        ret

instead of this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, 0
        mov DWORD PTR [%EAX], %ECX
        mov %EAX, 0
        mov DWORD PTR [%ESP], %EAX
        call test
        add %ESP, 12
        ret

llvm-svn: 13558