being destroyed. This allows users to run global optimizations like globaldce
even after some functions have been jitted.

This patch also removes the Function* parameter to
JITEventListener::NotifyFreeingMachineCode() since it can cause that to be
called when the Function is partially destroyed. This change will be even more
helpful later when I think we'll want to allow machine code to actually outlive
its Function.

llvm-svn: 85182

llvm-svn: 85181

llvm-svn: 85180

llvm-svn: 85179

llvm-svn: 85178

llvm-svn: 85177

Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.

llvm-svn: 85176

someone will add an llvm intrinsic for us to use, so the optimizer can
figure out the hard cases.  WIP.

For those that want to help, double check with Eric before starting.
He has a bit of code this will plug into.

llvm-svn: 85175

llvm-svn: 85174

bits.  Johnny, please review -- I do not have a good track record of getting
these right.

llvm-svn: 85173

llvm-svn: 85171

llvm-svn: 85170

Patch by Johnny Chen.

llvm-svn: 85169

bits.  Patch by Johnny Chen.

llvm-svn: 85167

Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.

llvm-svn: 85166

the loop exiting block dominates the latch block; if ScalarEvolution
can prove that the trip-count is finite, that's sufficient.

llvm-svn: 85165

can safely use the NSW bit on the Add.

llvm-svn: 85164

llvm-svn: 85163

llvm-svn: 85162

llvm-svn: 85161

through the crack.

llvm-svn: 85160

aggressive on PHI instructions.

llvm-svn: 85158

to clamp at 0 bytes left.  WIP.

llvm-svn: 85157

llvm-svn: 85154

binary operators.

llvm-svn: 85153

llvm-svn: 85152

llvm-svn: 85149

llvm-svn: 85148

-Wno-missing-field-initializers or -Wno-variadic-macros.

llvm-svn: 85147

llvm-svn: 85146

Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.

llvm-svn: 85145

GEPs (more than one non-zero index) into simple GEPs (at most one
non-zero index).  In some simple experiments using this it's not
uncommon to see 3% overall code size wins, because it exposes
redundancies that can be eliminated, however it's tricky to use
because instcombine aggressively undoes the work that this pass does.

llvm-svn: 85144

llvm-svn: 85141

llvm-svn: 85140

llvm-svn: 85138

for consistency with ConstantFolder.

llvm-svn: 85137

llvm-svn: 85136

machineinstr whether the aliased register is dead, rather than the original
register is dead. This allows it to get the correct answer when examining
an instruction like this:
  CALLpcrel32 <ga:foo>, %AL<imp-def>, %EAX<imp-def,dead>
where EAX is dead but a subregister of it is still live. This fixes PR5294.

llvm-svn: 85135

llvm-svn: 85134

llvm-svn: 85133