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path: root/lib/Target/Mips/MipsRegisterInfo.cpp
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2011-07-07Reverse order of operands of address operand mem so that the base operand comesAkira Hatanaka
before the offset. This change will enable simplification of function MipsRegisterInfo::eliminateFrameIndex. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134625 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01Improve Mips back-end's handling of DBG_VALUE. Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134224 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Move CallFrameSetupOpcode and CallFrameDestroyOpcode to TargetInstrInfo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134030 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Hide more details in tablegen generated MCRegisterInfo ctor function.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134027 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Merge XXXGenRegisterDesc.inc XXXGenRegisterNames.inc XXXGenRegisterInfo.h.incEvan Cheng
into XXXGenRegisterInfo.inc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133922 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Starting to refactor Target to separate out code that's needed to fully describeEvan Cheng
target machine from those that are only needed by codegen. The goal is to sink the essential target description into MC layer so we can start building MC based tools without needing to link in the entire codegen. First step is to refactor TargetRegisterInfo. This patch added a base class MCRegisterInfo which TargetRegisterInfo is derived from. Changed TableGen to separate register description from the rest of the stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Re-apply 132758 and 132768 which were speculatively reverted in 132777. Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133494 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Remove custom allocation order boilerplate that is no longer needed.Jakob Stoklund Olesen
The register allocators automatically filter out reserved registers and place the callee saved registers last in the allocation order, so custom methods are no longer necessary just for that. Some targets still use custom allocation orders: ARM/Thumb: The high registers are removed from GPR in thumb mode. The NEON allocation orders prefer to use non-VFP2 registers first. X86: The GR8 classes omit AH-DH in x86-64 mode to avoid REX trouble. SystemZ: Some of the allocation orders are omitting R12 aliases without explanation. I don't understand this target well enough to fix that. It looks like all the boilerplate could be removed by reserving the right registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132781 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Speculatively revert 132758 and 132768 to try to fix the Windows buildbots.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132777 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Fix bug in lowering of DYNAMIC_STACKALLOC nodes. The correct offset of theAkira Hatanaka
dynamically allocated stack area was not set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132758 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-30Use the dwarf->llvm mapping to print register names in the cfiRafael Espindola
directives. Fixes PR9826. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28Change the set of callee-saved registers for non-MIPS32 architectures specifiedAkira Hatanaka
in MipsRegisterInfo::getCalleeSavedRegs so that both registers paired for a double precision register get saved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132243 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26Add support for C++ exception handling.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24Enable printing of immediates that do not fit in 16-bit. .cprestore can haveAkira Hatanaka
offsets that are larger than 0x10000. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132003 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-23Change StackDirection from StackGrowsUp to StackGrowsDown.Akira Hatanaka
The following improvements are accomplished as a result of applying this patch: - Fixed frame objects' offsets (relative to either the virtual frame pointer or the stack pointer) are set before instruction selection is completed. There is no need to wait until Prologue/Epilogue Insertion is run to set them. - Calculation of final offsets of fixed frame objects is straightforward. It is no longer necessary to assign negative offsets to fixed objects for incoming arguments in order to distinguish them from the others. - Since a fixed object has its relative offset set during instruction selection, there is no need to conservatively set its alignment to 4. - It is no longer necessary to reorder non-fixed frame objects in MipsFrameLowering::adjustMipsStackFrame. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Use the correct register to access stack frame objects.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Make $fp and $ra callee-saved registers and let PrologEpilogInserter handleAkira Hatanaka
saving and restoring them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131745 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Increase number of available registers when target is MIPS32.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131660 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-061. Keep lines in 80 columns.Akira Hatanaka
2. Remove unused function. 3. Correct indentation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131028 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-03Fix function MipsRegisterInfo::getRegisterNumbering.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130774 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15Reverse unnecessary changes made in r129606 and r129608. There is no change ↵Akira Hatanaka
in functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15Fix lines that have incorrect indentation or exceed 80 columns. There is no ↵Akira Hatanaka
change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129606 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04Expands register/immediate pairs when the immediate is too large to fit in ↵Bruno Cardoso Lopes
16-bit field. Patch by Akira Hatanaka git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127032 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04Remove (hopefully) all trailing whitespaces from the mips backend. Patch by ↵Bruno Cardoso Lopes
Hatanaka, Akira git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127003 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov
and fixes here and there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Move hasFP() and few related hooks to TargetFrameInfo.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15First step of huge frame-related refactoring: move emit{Prologue,Epilogue} ↵Anton Korobeynikov
out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Simplify eliminateFrameIndex() interface back down now that PEI doesn't needJim Grosbach
to try to re-use scavenged frame index reference registers. rdar://8277890 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02Remove the TargetRegisterClass member from CalleeSavedInfoRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02cleanupRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe whatBill Wendling
the variable actually tracks. N.B., several back-ends are using "HasCalls" as being synonymous for something that adjusts the stack. This isn't 100% correct and should be looked into. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103802 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Implement -disable-non-leaf-fp-elim which disable frame pointer eliminationEvan Cheng
optimization for non-leaf functions. This will be hooked up to gcc's -momit-leaf-frame-pointer option. rdar://7886181 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100214 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09Change the Value argument to eliminateFrameIndex to a type-tagged value. ThisJim Grosbach
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01Fix stack size bug while using o32 abiBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94969 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-20reduce redundant are's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94008 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Only include in the callee saved regs the sub registers to avoidBruno Cardoso Lopes
unnecessary save/restore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Add a bool flag to StackObjects telling whether they reference spillDavid Greene
slots. The AsmPrinter will use this information to determine whether to print a spill/reload comment. Remove default argument values. It's too easy to pass a wrong argument value when multiple arguments have default values. Make everything explicit to trap bugs early. Update all targets to adhere to the new interfaces.. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Fix PR5149.Bruno Cardoso Lopes
http://llvm.org/bugs/show_bug.cgi?id=5149 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86543 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07Add register-reuse to frame-index register scavenging. When a target usesJim Grosbach
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83467 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23eliminate the last DOUTs from the targets.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79833 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23remove various std::ostream version of printing methods fromChris Lattner
MachineInstr and MachineOperand. This required eliminating a bunch of stuff that was using DOUT, I hope that bill doesn't mind me stealing his fun. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12This void is implicit in C++.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Major calling convention code refactoring.Dan Gohman
Instead of awkwardly encoding calling-convention information with ISD::CALL, ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering provides three virtual functions for targets to override: LowerFormalArguments, LowerCall, and LowerRet, which replace the custom lowering done on the special nodes. They provide the same information, but in a more immediately usable format. This also reworks much of the target-independent tail call logic. The decision of whether or not to perform a tail call is now cleanly split between target-independent portions, and the target dependent portion in IsEligibleForTailCallOptimization. This also synchronizes all in-tree targets, to help enable future refactoring and feature work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25More migration to raw_ostream, the water has dried up around the iostream hole.Daniel Dunbar
- Some clients which used DOUT have moved to DEBUG. We are deprecating the "magic" DOUT behavior which avoided calling printing functions when the statement was disabled. In addition to being unnecessary magic, it had the downside of leaving code in -Asserts builds, and of hiding potentially unnecessary computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin
This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11assert(0) -> LLVM_UNREACHABLE.Torok Edwin
Make llvm_unreachable take an optional string, thus moving the cerr<< out of line. LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for NDEBUG builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-16Fix a missing def-flag on a Mips epilogue load.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-21Removed AFGR32 register classBruno Cardoso Lopes
Handle odd registers allocation in FGR32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67422 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-15This causes incorrect stack frame allocation when the last object is an ↵Bruno Cardoso Lopes
array allocated on the stack which would lead the compiled program to run over its stack. Thanks to Gil Dogon git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67034 91177308-0d34-0410-b5e6-96231b3b80d8
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