llvm-svn: 13872

to eliminate the wrong type.

llvm-svn: 13855

This code hadn't been updated after the "structs with more than 256 elements"
related changes to the GEP instruction.  Also it was not handling the
ConstantAggregateZero class.

Now it does!

llvm-svn: 13834

llvm-svn: 13823

Add support for acos/asin/atan.  188.ammp contains three calls to acos with
constant arguments.  Constant folding it allows elimination of those 3 calls
and three FP divisions of the results.

llvm-svn: 13821

appended anywhere.

llvm-svn: 13798

llvm-svn: 13792

llvm-svn: 13754

llvm-svn: 13751

llvm-svn: 13750

llvm-svn: 13749

into (X & (C2 << C1)) != (C3 << C1), where the shift may be either left or
right and the compare may be any one.

This triggers 1546 times in 176.gcc alone, as it is a common pattern that
occurs for bitfield accesses.

llvm-svn: 13740

Canonicalize cast X to bool into a setne instruction

llvm-svn: 13736

llvm-svn: 13717

llvm-svn: 13702

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

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

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

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

give the extracted function a more useful name than just foo_code.

llvm-svn: 13493

instruction in them.

llvm-svn: 13490

PHI node entries from multiple outside-the-region blocks.  This also fixes
extraction of the entry block in a function.  Yaay.

This has successfully block extracted all (but one) block from the score_move
function in obsequi (out of 33).  Hrm, I wonder which block the bug is in.  :)

llvm-svn: 13489

* Add a stub for the severSplitPHINodes which will allow us to bbextract
  bb's with PHI nodes in them soon.
* Remove unused arguments from findInputsOutputs
* Dramatically simplify the code in findInputsOutputs.  In particular,
  nothing really cares whether or not a PHI node is using something.
* Move moveCodeToFunction to after emitCallAndSwitchStatement as that's the
  order they get called.
* Fix a bug where we would code extract a region that included a call to
  vastart.  Like 'alloca', calls to vastart must stay in the function that
  they are defined in.
* Add some comments.

llvm-svn: 13482

from the extracted region.  If the return has 0 or 1 exit blocks, the new
function returns void.  If it has 2 exits, it returns bool, otherwise it
returns a ushort as before.

This allows us to use a conditional branch instruction when there are two
exit blocks, as often happens during block extraction.

llvm-svn: 13481

  1. Get rid of the silly abort block.  When doing bb extraction, we get one
     abort block for every block extracted, which is kinda annoying.
  2. If the switch ends up having a single destination, turn it into an
     unconditional branch.

I would like to add support for conditional branches, but to do this we will
want to have the function return a bool instead of a ushort.

llvm-svn: 13478

llvm-svn: 13429

        %tmp.0 = getelementptr [50 x sbyte]* %ar, uint 0, int 5         ; <sbyte*> [#uses=2]
        %tmp.7 = getelementptr sbyte* %tmp.0, int 8             ; <sbyte*> [#uses=1]

together.  This patch actually allows us to simplify and generalize the code.

llvm-svn: 13415

llvm-svn: 13400

This fixes PR332 and ADCE/2004-05-04-UnreachableBlock.llx

llvm-svn: 13349

llvm-svn: 13341

llvm-svn: 13340

which case you'll get a null array and zero passed to the profiling function.

llvm-svn: 13336

llvm-svn: 13335