since some m. instr. may be generated by LLVM instrs. in other blocks.
Handle non-SSA (anti and output) edges and true edges uniformly by
working with machine instructions alone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1269 91177308-0d34-0410-b5e6-96231b3b80d8
This wasn't a problem until we started putting copies for Phi values
that produced cycles in the SchedGraph!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1254 91177308-0d34-0410-b5e6-96231b3b80d8
are now found as part of the initial walk of the machine code).
Also memory load/store instructions can be generated for non-memory
LLVM instructions, which wasn't handled before. It is now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1199 91177308-0d34-0410-b5e6-96231b3b80d8
Avoids having to handle some special cases that cause complex interactions
with instr. selection.
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(b) any instructions that use or set CC registers. Whether or not the
latter are needed really should be machine-dependent.
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(1) Add edges for Values that are written by multiple m/c instructions
(2) Add edges for LLVM operands that are not machine operands (e.g., Call args)
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Value to a vector instead of a list.
Move SchedGraph.h & SchedPriorities.h into lib/CodeGen/InstrScheduling
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Move files from lib/CodeGen/TargetMachine to lib/Target
Move TargetData.h and TargetMachine.h to Target/{Data.h|Machine.h}
Prepare to split TargetMachine.h into several smaller files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@566 91177308-0d34-0410-b5e6-96231b3b80d8
