Now with fewer extraneous semicolons!

llvm-svn: 115996

Reapply r110396, with fixes to appease the Linux buildbot gods.

llvm-svn: 110460

Revert r110396 to fix buildbots.

llvm-svn: 110410

Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
ID member as the sole unique type identifier. Clean up APIs related to this change.

llvm-svn: 110396

Fix batch of converting RegisterPass<> to INTIALIZE_PASS().

llvm-svn: 109045

Use pre-increment instead of post-increment when the result is not used.

llvm-svn: 106542

Use do+while instead of while for loops which obviously have a
non-zero trip count. Use SmallVector's pop_back_val().

llvm-svn: 92734

eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861

llvm-svn: 80766

Allow readonly functions to unwind exceptions. Teach
the optimizers about this. For example, a readonly
function with no uses cannot be removed unless it is
also marked nounwind.

llvm-svn: 71071

Re-commit 65975 and a fix for the problem that
was causing llvm-gcc to fail to build. I've
verified it bootstraps now; good enough for me.

llvm-svn: 66073

Let instcombiner remove redundant dbg intrinsics.

llvm-svn: 59658

Cleanup debug info. assocated with deleted instructions.

llvm-svn: 59012

Tidy up several unbeseeming casts from pointer to intptr_t.

llvm-svn: 55779

Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.

llvm-svn: 53104

Use df_ext_iterator to capture the reachable set without allocating an extra set.
Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.

Use df_ext_iterator to capture the reachable set without allocating an extra set.
Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.

llvm-svn: 53044

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Add support to ADCE for pruning unreachable blocks. This addresses the final
part of PR2509.

llvm-svn: 53038

Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSet
with a huge "size" parameter is actually quite inefficient.

llvm-svn: 53034

At Chris' suggestion, move the liveness and worklist datastructures into
instance variables so they can be allocated just once, and reuse the worklist
as the dead list as well.

llvm-svn: 52618

Add a newline at the end of this file.

llvm-svn: 51680

Replace the old ADCE implementation with a new one that more simply solves
the one case that ADCE catches that normal DCE doesn't: non-induction variable
loop computations.

This implementation handl

Replace the old ADCE implementation with a new one that more simply solves
the one case that ADCE catches that normal DCE doesn't: non-induction variable
loop computations.

This implementation handles this problem without using postdominators.

llvm-svn: 51668

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Remove ADCE's ability to delete loops. This ability is now implemented in a
safer manner by loop deletion.

llvm-svn: 51182

Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017

API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277

Remove attribution from file headers, per discussion on llvmdev.

llvm-svn: 45418

Integrate the readonly/readnone logic more deeply
into alias analysis. This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
wh

Integrate the readonly/readnone logic more deeply
into alias analysis. This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter. These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function. Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite. To reduce the
chance of misuse it is now protected.

llvm-svn: 44487

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