Add basic infrastructure and x86 support for preserving MachineMemOperand
information when unfolding memory references.

llvm-svn: 83656

Remove dead code.

llvm-svn: 83181

Improve MachineMemOperand handling.
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
This eliminates MachineInstr's std::list member and allows the data to be
cre

Improve MachineMemOperand handling.
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
This eliminates MachineInstr's std::list member and allows the data to be
created by isel and live for the remainder of codegen, avoiding a lot of
copying and unnecessary translation. This also shrinks MemSDNode.
- Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated
fields for MachineMemOperands.
- Change MemSDNode to have a MachineMemOperand member instead of its own
fields with the same information. This introduces some redundancy, but
it's more consistent with what MachineInstr will eventually want.
- Ignore alignment when searching for redundant loads for CSE, but remember
the greatest alignment.

Target-specific code which previously used MemOperandSDNodes with generic
SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range
so that the SelectionDAG framework knows that MachineMemOperand information
is available.

llvm-svn: 82794

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add hooks to hang target-specific goop off MachineModuleInfo,
move MachineFunctionInfo virtual method out of line to give it
a home.

llvm-svn: 81940

Reapply 79977.
Use MDNodes to encode debug info in llvm IR.

llvm-svn: 80406

Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.

llvm-svn: 80073

Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata

Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.

This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)

llvm-svn: 79977

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Fix some refactos for iostream changes (in -Asserts mode).
- The world needs better C++ refactoring tools, can I get an Amen!?

llvm-svn: 79843

remove std::ostream versions of printing stuff for MBB and MF,
upgrading a few things to use raw_ostream

llvm-svn: 79811

convert some stuff to work on raw_ostreams instead of std::ostream.

llvm-svn: 79803

remove dead PrefixPrinter class.

llvm-svn: 79796

Add missing includes.

llvm-svn: 79480

Remove a bit more cruft from the sjlj moving to a backend pass.

llvm-svn: 79272

Push LLVMContexts through the IntegerType APIs.

llvm-svn: 78948

Add MachineFrameInfo::getPristineRegisters(MBB) method.

llvm-svn: 78911

SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls i

SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.

Built on Darwin and verified no llvm-core "make check" regressions.

llvm-svn: 78625

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Re-apply LiveInterval index dumping patch, with fixes suggested by Bill
and others.

llvm-svn: 78003

Fix some comments referring to std::cerr.

llvm-svn: 77931

MachineFunction no longer needs Annotation.

llvm-svn: 77704

Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage
shouldn't do AU.setPreservesCFG(), because even though CodeGen passes
don't modify the LLVM IR CFG, they may modify the MachineFuncti

Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage
shouldn't do AU.setPreservesCFG(), because even though CodeGen passes
don't modify the LLVM IR CFG, they may modify the MachineFunction CFG,
and passes like MachineLoop are registered with isCFGOnly set to true.

llvm-svn: 77691

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Revert r77654, it appears to be causing llvm-gcc bootstrap failures, and many
failures when building assorted projects with clang.

--- Reverse-merging r77654 into '.':
U include/llvm/CodeGen/Pass

Revert r77654, it appears to be causing llvm-gcc bootstrap failures, and many
failures when building assorted projects with clang.

--- Reverse-merging r77654 into '.':
U include/llvm/CodeGen/Passes.h
U include/llvm/CodeGen/MachineFunctionPass.h
U include/llvm/CodeGen/MachineFunction.h
U include/llvm/CodeGen/LazyLiveness.h
U include/llvm/CodeGen/SelectionDAGISel.h
D include/llvm/CodeGen/MachineFunctionAnalysis.h
U include/llvm/Function.h
U lib/Target/CellSPU/SPUISelDAGToDAG.cpp
U lib/Target/PowerPC/PPCISelDAGToDAG.cpp
U lib/CodeGen/LLVMTargetMachine.cpp
U lib/CodeGen/MachineVerifier.cpp
U lib/CodeGen/MachineFunction.cpp
U lib/CodeGen/PrologEpilogInserter.cpp
U lib/CodeGen/MachineLoopInfo.cpp
U lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
D lib/CodeGen/MachineFunctionAnalysis.cpp
D lib/CodeGen/MachineFunctionPass.cpp
U lib/CodeGen/LiveVariables.cpp

llvm-svn: 77661

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Manage MachineFunctions with an analysis Pass instead of the Annotable
mechanism. To support this, make MachineFunctionPass a little more
complete.

llvm-svn: 77654

More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided call

More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.

llvm-svn: 77019

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Switch to getNameStr().

llvm-svn: 76962

reimplement Constant::ContainsRelocations as
Constant::getRelocationInfo(), which has a much simpler
to use API. It still should not be part of libvmcore, but
is better than it was. Also teach it

reimplement Constant::ContainsRelocations as
Constant::getRelocationInfo(), which has a much simpler
to use API. It still should not be part of libvmcore, but
is better than it was. Also teach it to be smart about
hidden visibility.

llvm-svn: 76700

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