llvm-6502/lib/Target/Mips
Dan Gohman 6520e20e4f Teach DAGCombine to fold constant offsets into GlobalAddress nodes,
and add a TargetLowering hook for it to use to determine when this
is legal (i.e. not in PIC mode, etc.)

This allows instruction selection to emit folded constant offsets
in more cases, such as the included testcase, eliminating the need
for explicit arithmetic instructions.

This eliminates the need for the C++ code in X86ISelDAGToDAG.cpp
that attempted to achieve the same effect, but wasn't as effective.

Also, fix handling of offsets in GlobalAddressSDNodes in several
places, including changing GlobalAddressSDNode's offset from
int to int64_t.

The Mips, Alpha, Sparc, and CellSPU targets appear to be
unaware of GlobalAddress offsets currently, so set the hook to
false on those targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18 02:06:02 +00:00
..
CMakeLists.txt CMake: Builds all targets. 2008-09-26 04:40:32 +00:00
Makefile
Mips.h
Mips.td
MipsAsmPrinter.cpp Switch the MachineOperand accessors back to the short names like 2008-10-03 15:45:36 +00:00
MipsCallingConv.td
MipsDelaySlotFiller.cpp
MipsInstrFormats.td
MipsInstrFPU.td
MipsInstrInfo.cpp Const-ify several TargetInstrInfo methods. 2008-10-16 01:49:15 +00:00
MipsInstrInfo.h Const-ify several TargetInstrInfo methods. 2008-10-16 01:49:15 +00:00
MipsInstrInfo.td Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as 2008-10-11 22:08:30 +00:00
MipsISelDAGToDAG.cpp Trim #includes. 2008-10-16 20:18:31 +00:00
MipsISelLowering.cpp Teach DAGCombine to fold constant offsets into GlobalAddress nodes, 2008-10-18 02:06:02 +00:00
MipsISelLowering.h Teach DAGCombine to fold constant offsets into GlobalAddress nodes, 2008-10-18 02:06:02 +00:00
MipsMachineFunction.h
MipsRegisterInfo.cpp Switch the MachineOperand accessors back to the short names like 2008-10-03 15:45:36 +00:00
MipsRegisterInfo.h
MipsRegisterInfo.td
MipsSchedule.td
MipsSubtarget.cpp
MipsSubtarget.h
MipsTargetAsmInfo.cpp Rename isWeakForLinker to mayBeOverridden. Use it 2008-09-29 11:25:42 +00:00
MipsTargetAsmInfo.h
MipsTargetMachine.cpp Fix command-line option printing to print two spaces where needed, 2008-10-14 20:25:08 +00:00
MipsTargetMachine.h