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path: root/llvm/lib/CodeGen/MachineSSAUpdater.cpp
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2010-05-10Fix PR7096. When a block containing multiple defs is tail duplicated, theBob Wilson1-1/+1
SSAUpdater for the value from the first def may see uses of undefined values, because the later defs will not have been updated yet. llvm-svn: 103407
2010-05-04Combine the implementations of the core part of the SSAUpdater andBob Wilson1-437/+109
MachineSSAUpdater to avoid duplicating all the code. llvm-svn: 103060
2010-04-26Update MachineSSAUpdater with the same changes I made for the IR-levelBob Wilson1-122/+428
SSAUpdater. I'm going to try to refactor this to share most of the code between them. llvm-svn: 102353
2010-04-02stop using DebugLoc::getUnknownLoc()Chris Lattner1-1/+1
llvm-svn: 100215
2010-02-10fix missing #includes.Chris Lattner1-0/+1
llvm-svn: 95745
2010-02-09move target-independent opcodes out of TargetInstrInfoChris Lattner1-8/+8
into TargetOpcodes.h. #include the new TargetOpcodes.h into MachineInstr. Add new inline accessors (like isPHI()) to MachineInstr, and start using them throughout the codebase. llvm-svn: 95687
2010-01-05Change errs() to dbgs().David Greene1-2/+2
llvm-svn: 92548
2009-12-07Watch out for duplicated PHI instructions.Evan Cheng1-3/+37
llvm-svn: 90816
2009-12-07Pre-regalloc tale duplication. Work in progress.Evan Cheng1-1/+11
llvm-svn: 90759
2009-12-07If BB is empty, insert PHI before end() instead of front().Evan Cheng1-3/+6
llvm-svn: 90744
2009-12-04Don't try to be cute with undef optimization here. Let ProcessImplicitDefs ↵Evan Cheng1-27/+17
handle it. llvm-svn: 90566
2009-12-04- If the reaching definition is an undef and the use is a PHI, add the ↵Evan Cheng1-11/+15
implicit_def to the end of the source block. - When reaching value is replaced with another, update the cache as well. llvm-svn: 90501
2009-12-03Handle undef values properly.Evan Cheng1-15/+38
llvm-svn: 90489
2009-12-03Fill out codegen SSA updater. It's not yet tested.Evan Cheng1-8/+229
llvm-svn: 90395
2009-12-02Skeleton for MachineInstr level SSA updater.Evan Cheng1-0/+108
llvm-svn: 90353