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 Fix indendation. 2008-09-23 08:54:41 +00:00
Mips.h Use raw_ostream throughout the AsmPrinter. 2008-08-21 00:14:44 +00:00
Mips.td Added new features to represent specific instructions groups 2008-07-30 17:01:06 +00:00
MipsAsmPrinter.cpp Switch the MachineOperand accessors back to the short names like 2008-10-03 15:45:36 +00:00
MipsCallingConv.td Fix PR2615 2008-08-03 15:37:43 +00:00
MipsDelaySlotFiller.cpp Tidy up several unbeseeming casts from pointer to intptr_t. 2008-09-04 17:05:41 +00:00
MipsInstrFormats.td Fixe typos and 80 column size problems 2008-07-09 04:45:36 +00:00
MipsInstrFPU.td Handle i32->f32 bitconvert results. 2008-08-04 06:44:31 +00:00
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 Added support for fp callee saved registers. 2008-08-06 06:14:43 +00:00
MipsRegisterInfo.cpp Switch the MachineOperand accessors back to the short names like 2008-10-03 15:45:36 +00:00
MipsRegisterInfo.h Added support for fp callee saved registers. 2008-08-06 06:14:43 +00:00
MipsRegisterInfo.td Improved asm inline for hi,lo results 2008-08-02 19:42:36 +00:00
MipsSchedule.td Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
MipsSubtarget.cpp Fixed Bug 2751 2008-09-15 21:06:55 +00:00
MipsSubtarget.h Added new features to represent specific instructions groups 2008-07-30 17:01:06 +00:00
MipsTargetAsmInfo.cpp Rename isWeakForLinker to mayBeOverridden. Use it 2008-09-29 11:25:42 +00:00
MipsTargetAsmInfo.h Undo most of r54519. 2008-08-08 17:56:50 +00:00
MipsTargetMachine.cpp Fix command-line option printing to print two spaces where needed, 2008-10-14 20:25:08 +00:00
MipsTargetMachine.h Use raw_ostream throughout the AsmPrinter. 2008-08-21 00:14:44 +00:00