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path: root/llvm/lib/Target/ARM/Thumb1RegisterInfo.h
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* Add an MF argument to TRI::getPointerRegClass() and TII::getRegClass().Jakob Stoklund Olesen2012-05-071-1/+2
| | | | | | | | | | | | | The getPointerRegClass() hook can return register classes that depend on the calling convention of the current function (ptr_rc_tailcall). So far, we have been able to infer the calling convention from the subtarget alone, but as we add support for multiple calling conventions per target, that no longer works. Patch by Yiannis Tsiouris! llvm-svn: 156328
* Reorder includes to match coding standards. Fix an issue or two exposed by that.Craig Topper2012-03-171-2/+1
| | | | llvm-svn: 152978
* Add a TRI::getLargestLegalSuperClass hook to provide an upper limit on ↵Jakob Stoklund Olesen2011-04-261-0/+3
| | | | | | | | | | | | register class inflation. The hook will be used by the register allocator when recomputing register classes after removing constraints. Thumb1 code doesn't allow anything larger than tGPR, and x86 needs to ensure that the spill size doesn't change. llvm-svn: 130228
* Provide a legal pointer register class when targeting thumb1.Jakob Stoklund Olesen2011-03-311-0/+2
| | | | | | The LocalStackSlotAllocation pass was creating illegal registers. llvm-svn: 128687
* Implement frame unwinding information emission for Thumb1. Not finished yet ↵Anton Korobeynikov2011-03-051-1/+2
| | | | | | because there is no way given the constpool index to examine the actual entry: the reason is clones inserted by constant island pass, which are not tracked at all! The only connection is done during asmprinting time via magic label names which is really gross and needs to be eventually fixed. llvm-svn: 127104
* Move hasFP() and few related hooks to TargetFrameInfo.Anton Korobeynikov2010-11-181-2/+0
| | | | llvm-svn: 119740
* First step of huge frame-related refactoring: move emit{Prologue,Epilogue} ↵Anton Korobeynikov2010-11-151-3/+0
| | | | | | out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place llvm-svn: 119097
* Simplify eliminateFrameIndex() interface back down now that PEI doesn't needJim Grosbach2010-08-261-3/+2
| | | | | | to try to re-use scavenged frame index reference registers. rdar://8277890 llvm-svn: 112241
* Add Thumb1 support for virtual frame indices.Jim Grosbach2010-08-191-7/+8
| | | | | | rdar://8277890 llvm-svn: 111533
* Constify some arguments.Eric Christopher2010-07-201-1/+1
| | | | llvm-svn: 108812
* Make getPhysicalRegisterRegClass non-virtual. Should be able to remove it soon.Rafael Espindola2010-07-111-3/+0
| | | | llvm-svn: 108094
* Clean up 80 column violations. No functional change.Jim Grosbach2010-06-021-1/+2
| | | | llvm-svn: 105350
* Change the Value argument to eliminateFrameIndex to a type-tagged value. ThisJim Grosbach2010-03-091-1/+1
| | | | | | | | | | is preparatory to having PEI's scavenged frame index value reuse logic properly distinguish types of frame values (e.g., whether the value is stack-pointer relative or frame-pointer relative). No functionality change. llvm-svn: 98086
* 80-column cleanup of file header commentsJim Grosbach2009-11-071-2/+3
| | | | llvm-svn: 86408
* Cleanup now that frame index scavenging via post-pass is working for ARM and ↵Jim Grosbach2009-10-281-3/+0
| | | | | | Thumb2. llvm-svn: 85406
* Missing piece of the ARM frame index post-scavenging conditionalizationJim Grosbach2009-10-211-0/+3
| | | | llvm-svn: 84798
* Now that all ARM subtargets use frame index scavenging, the Thumb1 requires*Jim Grosbach2009-10-201-3/+0
| | | | | | functions are not needed. llvm-svn: 84587
* Adjust the scavenge register spilling to allow the target to choose anJim Grosbach2009-10-191-4/+1
| | | | | | | | | | appropriate restore location for the spill as well as perform the actual save and restore. The Thumb1 target uses this to make sure R12 is not clobbered while a spilled scavenger register is live there. llvm-svn: 84554
* Re-enable register scavenging in Thumb1 by default.Jim Grosbach2009-10-081-0/+1
| | | | llvm-svn: 83521
* reverting thumb1 scavenging default due to test failure while I figure out ↵Jim Grosbach2009-10-071-1/+0
| | | | | | what's up. llvm-svn: 83501
* Enable thumb1 register scavenging by default.Jim Grosbach2009-10-071-0/+1
| | | | llvm-svn: 83494
* Add register-reuse to frame-index register scavenging. When a target usesJim Grosbach2009-10-071-2/+3
| | | | | | | | | | | | | | | | | | | | a virtual register to eliminate a frame index, it can return that register and the constant stored there to PEI to track. When scavenging to allocate for those registers, PEI then tracks the last-used register and value, and if it is still available and matches the value for the next index, reuses the existing value rather and removes the re-materialization instructions. Fancier tracking and adjustment of scavenger allocations to keep more values live for longer is possible, but not yet implemented and would likely be better done via a different, less special-purpose, approach to the problem. eliminateFrameIndex() is modified so the target implementations can return the registers they wish to be tracked for reuse. ARM Thumb1 implements and utilizes the new mechanism. All other targets are simply modified to adjust for the changed eliminateFrameIndex() prototype. llvm-svn: 83467
* In Thumb1, the register scavenger is not always able to use an emergencyJim Grosbach2009-10-051-0/+8
| | | | | | | | spill slot. When frame references are via the frame pointer, they will be negative, but Thumb1 load/store instructions only allow positive immediate offsets. Instead, Thumb1 will spill to R12. llvm-svn: 83336
* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-111-1/+1
| | | | | | | | while the latter is capable of representing either a primitive or an extended type. llvm-svn: 78713
* Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson2009-08-101-1/+1
| | | | | | own struct type. llvm-svn: 78610
* - More refactoring. This gets rid of all of the getOpcode calls.Evan Cheng2009-07-281-2/+2
| | | | | | | | | | | - This change also makes it possible to switch between ARM / Thumb on a per-function basis. - Fixed thumb2 routine which expand reg + arbitrary immediate. It was using using ARM so_imm logic. - Use movw and movt to do reg + imm when profitable. - Other code clean ups and minor optimizations. llvm-svn: 77300
* Refactor. Get rid of a few more getOpcode() calls.Evan Cheng2009-07-261-0/+2
| | | | llvm-svn: 77164
* Correctly handle the Thumb-2 imm8 addrmode. Specialize frame index ↵David Goodwin2009-07-241-0/+4
| | | | | | elimination more exactly for Thumb-2 to get better code gen. llvm-svn: 76919
* Let callers decide the sub-register index on the def operand of ↵Evan Cheng2009-07-161-1/+1
| | | | | | | | rematerialized instructions. Avoid remat'ing instructions whose def have sub-register indices for now. It's just really really hard to get all the cases right. llvm-svn: 75900
* Generalize opcode selection in ARMBaseRegisterInfo.David Goodwin2009-07-081-1/+1
| | | | llvm-svn: 75036
* Push methods into base class in preparation for sharing.David Goodwin2009-07-081-9/+8
| | | | llvm-svn: 75020
* Checkpoint refactoring of ThumbInstrInfo and ThumbRegisterInfo into ↵David Goodwin2009-07-021-0/+60
Thumb1InstrInfo, Thumb2InstrInfo, Thumb1RegisterInfo and Thumb2RegisterInfo. Move methods from ARMInstrInfo to ARMBaseInstrInfo to prepare for sharing with Thumb2. llvm-svn: 74731
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