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path: root/lib/Target/PowerPC/PPCRegisterInfo.cpp
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* Make CR spill and restore use a reserved register. These operations cannot ↵Hal Finkel2011-12-10
| | | | | | use the register scavenger because the scavenger can only scavenge one register and frame-index elimination may have already grabbed it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146318 91177308-0d34-0410-b5e6-96231b3b80d8
* make CR spill and restore 64-bit clean (no functional change), and fix some ↵Hal Finkel2011-12-07
| | | | | | other problems found with -verify-machineinstrs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146024 91177308-0d34-0410-b5e6-96231b3b80d8
* make base register selection used in eliminateFrameIndex 64-bit cleanHal Finkel2011-12-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146023 91177308-0d34-0410-b5e6-96231b3b80d8
* add RESTORE_CR and support CR unspillsHal Finkel2011-12-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145961 91177308-0d34-0410-b5e6-96231b3b80d8
* remove old FIXMEHal Finkel2011-12-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145960 91177308-0d34-0410-b5e6-96231b3b80d8
* enable PPC register scavenging by default (update tests and remove some FIXMEs)Hal Finkel2011-12-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145819 91177308-0d34-0410-b5e6-96231b3b80d8
* don't include CR bit subregs in callee-saved listHal Finkel2011-12-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145818 91177308-0d34-0410-b5e6-96231b3b80d8
* add register pressure for CR regsHal Finkel2011-12-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145816 91177308-0d34-0410-b5e6-96231b3b80d8
* Move global variables in TargetMachine into new TargetOptions class. As an APINick Lewycky2011-12-02
| | | | | | | | | | | | | change, now you need a TargetOptions object to create a TargetMachine. Clang patch to follow. One small functionality change in PTX. PTX had commented out the machine verifier parts in their copy of printAndVerify. That now calls the version in LLVMTargetMachine. Users of PTX who need verification disabled should rely on not passing the command-line flag to enable it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145714 91177308-0d34-0410-b5e6-96231b3b80d8
* add basic PPC register-pressure feedback; adjust the vaarg test to match the ↵Hal Finkel2011-11-22
| | | | | | new register-allocation pattern git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145065 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor PPC target to separate MC routines from Target routines.Evan Cheng2011-07-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135942 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions forEvan Cheng2011-07-18
| | | | | | | better location welcome). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135438 91177308-0d34-0410-b5e6-96231b3b80d8
* Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng2011-07-18
| | | | | | | | | | to MCRegisterInfo. Also initialize the mapping at construction time. This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step towards fixing the layering violation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
* Next round of MC refactoring. This patch factor MC table instantiations, MCEvan Cheng2011-07-14
| | | | | | | registeration and creation code into XXXMCDesc libraries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135184 91177308-0d34-0410-b5e6-96231b3b80d8
* Move CallFrameSetupOpcode and CallFrameDestroyOpcode to TargetInstrInfo.Evan Cheng2011-06-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134030 91177308-0d34-0410-b5e6-96231b3b80d8
* Hide more details in tablegen generated MCRegisterInfo ctor function.Evan Cheng2011-06-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134027 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge XXXGenRegisterDesc.inc XXXGenRegisterNames.inc XXXGenRegisterInfo.h.incEvan Cheng2011-06-27
| | | | | | | into XXXGenRegisterInfo.inc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133922 91177308-0d34-0410-b5e6-96231b3b80d8
* Starting to refactor Target to separate out code that's needed to fully describeEvan Cheng2011-06-24
| | | | | | | | | | | | | 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
* Fix a few places where 32bit instructions/registerset were used on PPC64.Roman Divacky2011-06-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133260 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the dwarf->llvm mapping to print register names in the cfiRafael Espindola2011-05-30
| | | | | | | | directives. Fixes PR9826. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
* Split ppc dwarf regnums into ppc64 and ppc32 flavours.Rafael Espindola2011-05-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132315 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov2011-01-10
| | | | | | and fixes here and there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
* Restore the behavior of frame lowering before my refactoring.Anton Korobeynikov2010-12-18
| | | | | | | | | It turns out that ppc backend has really weird interdependencies over different hooks and all stuff is fragile wrt small changes. This should fix PR8749 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122155 91177308-0d34-0410-b5e6-96231b3b80d8
* Move more PEI-related hooks to TFIAnton Korobeynikov2010-11-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120229 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getInitialFrameState() to TargetFrameInfoAnton Korobeynikov2010-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119754 91177308-0d34-0410-b5e6-96231b3b80d8
* Move hasFP() and few related hooks to TargetFrameInfo.Anton Korobeynikov2010-11-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
* First step of huge frame-related refactoring: move emit{Prologue,Epilogue} ↵Anton Korobeynikov2010-11-15
| | | | | | 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
* Simplify eliminateFrameIndex() interface back down now that PEI doesn't needJim Grosbach2010-08-26
| | | | | | 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
* PPC doesn't supported VLA with large alignment. This wasDale Johannesen2010-07-30
| | | | | | | | | | formerly rejected by the FE, so asserted in the BE; now the FE only warns, so we treat it as a legitimate fatal error in PPC BE. This means the test for the feature won't pass, so it's xfail'd. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109892 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission andBill Wendling2010-07-16
| | | | | | | thus is a much more meaningful name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108563 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill ↵Evan Cheng2010-07-03
| | | | | | slots so it's always false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107550 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the TargetRegisterClass member from CalleeSavedInfoRafael Espindola2010-06-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105344 91177308-0d34-0410-b5e6-96231b3b80d8
* cleanupRafael Espindola2010-06-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105322 91177308-0d34-0410-b5e6-96231b3b80d8
* The PPC MFCR instruction implicitly uses all 8 of the CRDale Johannesen2010-05-20
| | | | | | | | | | | | | | | | registers. Currently it is not so marked, which leads to VCMPEQ instructions that feed into it getting deleted. If it is so marked, local RA complains about this sequence: vreg = MCRF CR0 MFCR <kill of whatever preg got assigned to vreg> All current uses of this instruction are only interested in one of the 8 CR registers, so redefine MFCR to be a normal unary instruction with a CR input (which is emitted only as a comment). That avoids all problems. 7739628. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104238 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe whatBill Wendling2010-05-14
| | | | | | | | | | 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
* Make naked functions work on PPC.Dale Johannesen2010-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102657 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement -disable-non-leaf-fp-elim which disable frame pointer eliminationEvan Cheng2010-04-21
| | | | | | | | 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
* EnablePPC64RS and EnablePPC32RS are used in multiple files, so theyDan Gohman2010-04-15
| | | | | | | can't be static. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101377 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of namespace polution.Dan Gohman2010-04-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the MMI pointer from MachineFrameInfo.Chris Lattner2010-04-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100415 91177308-0d34-0410-b5e6-96231b3b80d8
* use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()Chris Lattner2010-04-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100214 91177308-0d34-0410-b5e6-96231b3b80d8
* Make isInt?? and isUint?? template specializations of the generic versions. ThisBenjamin Kramer2010-03-29
| | | | | | | | makes calls a little bit more consistent and allows easy removal of the specializations in the future. Convert all callers to the templated functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99838 91177308-0d34-0410-b5e6-96231b3b80d8
* get MMI out of the label uniquing business, just go to MCContextChris Lattner2010-03-14
| | | | | | | to get unique assembler temporary labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98489 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that DBG_LABEL is updated, we can finally make MachineMove Chris Lattner2010-03-14
| | | | | | | contain an MCSymbol instead of a label index. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98482 91177308-0d34-0410-b5e6-96231b3b80d8
* change the DBG_LABEL MachineInstr to always be createdChris Lattner2010-03-14
| | | | | | | with an MCSymbol instead of an immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98481 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the Value argument to eliminateFrameIndex to a type-tagged value. ThisJim Grosbach2010-03-09
| | | | | | | | | | 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
* This should have gone in with 26015, see comments there.Dale Johannesen2010-02-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96020 91177308-0d34-0410-b5e6-96231b3b80d8
* move target-independent opcodes out of TargetInstrInfoChris Lattner2010-02-09
| | | | | | | | | | into TargetOpcodes.h. #include the new TargetOpcodes.h into MachineInstr. Add new inline accessors (like isPHI()) to MachineInstr, and start using them throughout the codebase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflectDan Gohman2010-02-08
| | | | | | | its current purpose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not store R31 into the caller's link area on PPC.Dale Johannesen2009-11-24
| | | | | | | | | | | | | | This violates the ABI (that area is "reserved"), and while it is safe if all code is generated with current compilers, there is some very old code around that uses that slot for something else, and breaks if it is stored into. Adjust testcases looking for current behavior. I've verified that the stack frame size is right in all testcases, whether it changed or not. 7311323. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89811 91177308-0d34-0410-b5e6-96231b3b80d8
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