llvm-svn: 97917

Add a missing interface to be able to call findNearestCommonDominator
for a PostDominanceTree. The function itself is already implemented in
DominatorTreeBase. The interface however was only added to the
DominatorTree class, but not the PostDominatorClass.

llvm-svn: 97915

llvm-svn: 97914

llvm-svn: 97912

llvm-svn: 97911

(Rolling back r97906.)

llvm-svn: 97909

Now it will factor things like this:

CheckType i32
  ...
CheckOpcode ISD::AND
  CheckType i64
  ...

into:

SwitchType:
  i32: ...
  i64:
    CheckOpcode ISD::AND
    ...

This shrinks hte table by a few bytes, nothing spectacular.

llvm-svn: 97908

llvm-svn: 97906

for CheckValueTypeMatcher.  The isContradictory implementation
helps us factor better, shrinking x86 table from 79144 -> 78896
bytes.

llvm-svn: 97905

llvm-svn: 97895

llvm-svn: 97891

llvm-svn: 97889

llvm-svn: 97888

Patch by John Tytgat!

llvm-svn: 97886

We cannot use a normal call here since it has extra unmodelled side
effects (it changes stack pointer). This should fix PR5292.

llvm-svn: 97884

llvm-svn: 97883

llvm-svn: 97882

Do not use '&' prefix for globals when register base field is non-zero, otherwise msp430-as will silently miscompile the code (TI's assembler report an error though).

This fixes PR6349

llvm-svn: 97877

before we try to optimize.

llvm-svn: 97876

out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.

llvm-svn: 97875

llvm-svn: 97871

llvm-svn: 97870

llvm-svn: 97869

registers may be restored via a pop instruction, not just a tRestore.
This fixes nightly test 471.omnetep for Thumb1.

llvm-svn: 97867

Log:
Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.

Modified:
   llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp
   llvm/trunk/test/Transforms/InstCombine/objsize.ll

It appears to be causing swb and nightly test failures.

llvm-svn: 97866

llvm-svn: 97865

llvm-svn: 97861

llvm-svn: 97860

llvm-svn: 97858

Luckily this never was released.

llvm-svn: 97857

llvm-svn: 97856

functional change yet.

llvm-svn: 97855

conversions.

llvm-svn: 97854

llvm-svn: 97852

llvm-svn: 97846

is a workaround for <rdar://problem/7672401/> (which I filed).

This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).

llvm-svn: 97845

can be used in more places.  Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change.  Should be
no functionality change.

llvm-svn: 97844

llvm-svn: 97841

   CALL ... %RAX<imp-def>
   ... [not using %RAX]
   %EAX = ..., %RAX<imp-use, kill>
   RET %EAX<imp-use,kill>

Now we do this:

   CALL ... %RAX<imp-def, dead>
   ... [not using %RAX]
   %EAX = ...
   RET %EAX<imp-use,kill>

By not artificially keeping %RAX alive, we lower register pressure a bit.

The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously
55, anybody can see that. Sheesh.

llvm-svn: 97838

post-ra scheduler has run. Disable the verifier checks that late in the game.

llvm-svn: 97837