llvm-svn: 67372

Removed unncessary code. No functionality change.

llvm-svn: 67371

llvm-svn: 67370

llvm-svn: 67364

for those architectures that support the instruction.

llvm-svn: 67363

(return or unreachable) is a kill.

llvm-svn: 67357

 - Make type declarations match the struct/class keyword of the definition.
 - Move AddSignalHandler into the namespace where it belongs.
 - Correctly call functions from template base.
 - Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.

llvm-svn: 67347

llvm-svn: 67335

the inliner; prevents nondeterministic behavior
when the same address is reallocated.
Don't build call graph nodes for debug intrinsic calls;
they're useless, and there were typically a lot of them.

llvm-svn: 67311

the set of blocks in which values are used, the set in which
values are live-through, and the set in which values are
killed. For the live-through and killed sets, conservative
approximations are used.

llvm-svn: 67309

llvm-svn: 67307

and was deleting Instructions without clearing the
corresponding map entry.  This led to nondeterministic
behavior if the same address got allocated to another
Instruction within a short time.

llvm-svn: 67306

is the first in its block.  This is PR3842.

llvm-svn: 67304

llvm-svn: 67302

either.

llvm-svn: 67288

llvm-svn: 67287

in selectiondag patterns.  This is required for the upcoming shuffle_vector rewrite,
and as it turns out, cleans up a hack in the Alpha instruction info.

llvm-svn: 67286

llvm-svn: 67280

for pointing this out :)

llvm-svn: 67212

llvm-svn: 67211

llvm-svn: 67210

unused loads or bitcasts.

llvm-svn: 67202

If the instruction has no users, it is also not only used by debug info 
and should not be deleted.

llvm-svn: 67194

If I->use_empty(), this method should return false.

llvm-svn: 67180

and expanding a bit convert (PR3711).  In both cases, we extract the
valid part of the widen vector and then do the conversion.

llvm-svn: 67175

not safe in general because the immediate could be an arbitrary
value that does not fit in a 32-bit pcrel displacement.  
Conservatively fall back to loading the value into a register
and calling through it.

We still do the optzn on X86-32.

llvm-svn: 67142

an invoke instead of after the invoke (in its block), which is invalid.

llvm-svn: 67139

it is not APInt clean, but even when it is it needs to be evaluated carefully
to determine whether it is actually profitable.

This fixes a crash on PR3806

llvm-svn: 67134

Some architectures (like x86) don't require it.
This fixes bug 3779.

llvm-svn: 67132

 - Use for exceptional buffer conditions in raw_ostream:write to shave
   off a cycle or two.

 - Please rename if you have a better one.

llvm-svn: 67103

size by the array amount as an i32 value instead of promoting from
i32 to i64 then doing the multiply.  Not doing this broke wrap-around
assumptions that the optimizers (validly) made.  The ultimate real
fix for this is to introduce i64 version of alloca and remove mallocinst.

This fixes PR3829

llvm-svn: 67093

llvm-svn: 67089

Revert inadvertent mis-fix of fneg.

llvm-svn: 67084

llvm-svn: 67082

llvm-svn: 67080

(which produces "call L_f$stub" rather than "call f").

llvm-svn: 67079

vector shuffle mask. Forced the mask to be built using i32.  Note: this will
be irrelevant once vector_shuffle no longer takes a build vector for the
shuffle mask.

llvm-svn: 67076

llvm-svn: 67072

llvm-svn: 67071

under a single branch.

Also, add a FIXME for formatted output.

llvm-svn: 67069