aboutsummaryrefslogtreecommitdiff
path: root/lib/Target/PowerPC/PPCRegisterInfo.cpp
AgeCommit message (Collapse)Author
2011-12-30Cleanup stack/frame register define/kill states. This fixes two bugs:Hal Finkel
1. The ST*UX instructions that store and update the stack pointer did not set define/kill on R1. This became a problem when I activated post-RA scheduling (and had incorrectly adjusted the Frames-large test). 2. eliminateFrameIndex did not kill its scavenged temporary register, and this could cause the scavenger to exhaust all available registers (and its emergency spill slot) when there were a lot of CR values to spill. The 2010-02-12-saveCR test has been adjusted to check for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147359 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-10Make CR spill and restore use a reserved register. These operations cannot ↵Hal Finkel
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
2011-12-07make CR spill and restore 64-bit clean (no functional change), and fix some ↵Hal Finkel
other problems found with -verify-machineinstrs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146024 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07make base register selection used in eliminateFrameIndex 64-bit cleanHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146023 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06add RESTORE_CR and support CR unspillsHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145961 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06remove old FIXMEHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05enable PPC register scavenging by default (update tests and remove some FIXMEs)Hal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05don't include CR bit subregs in callee-saved listHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145818 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05add register pressure for CR regsHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Move global variables in TargetMachine into new TargetOptions class. As an APINick Lewycky
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
2011-11-22add basic PPC register-pressure feedback; adjust the vaarg test to match the ↵Hal Finkel
new register-allocation pattern git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Refactor PPC target to separate MC routines from Target routines.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135942 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions forEvan Cheng
better location welcome). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng
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
2011-07-14Next round of MC refactoring. This patch factor MC table instantiations, MCEvan Cheng
registeration and creation code into XXXMCDesc libraries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135184 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
2011-06-17Fix a few places where 32bit instructions/registerset were used on PPC64.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133260 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
2011-05-30Split ppc dwarf regnums into ppc64 and ppc32 flavours.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132315 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
2010-12-18Restore the behavior of frame lowering before my refactoring.Anton Korobeynikov
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
2010-11-27Move more PEI-related hooks to TFIAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Move getInitialFrameState() to TargetFrameInfoAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119754 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
2010-07-30PPC doesn't supported VLA with large alignment. This wasDale Johannesen
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
2010-07-16Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission andBill Wendling
thus is a much more meaningful name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill ↵Evan Cheng
slots so it's always false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107550 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
2010-05-20The PPC MFCR instruction implicitly uses all 8 of the CRDale Johannesen
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
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
2010-04-29Make naked functions work on PPC.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102657 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
2010-04-15EnablePPC64RS and EnablePPC32RS are used in multiple files, so theyDan Gohman
can't be static. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix a bunch of namespace polution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05remove the MMI pointer from MachineFrameInfo.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100415 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
2010-03-29Make isInt?? and isUint?? template specializations of the generic versions. ThisBenjamin Kramer
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
2010-03-14get MMI out of the label uniquing business, just go to MCContextChris Lattner
to get unique assembler temporary labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14Now that DBG_LABEL is updated, we can finally make MachineMove Chris Lattner
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
2010-03-14change the DBG_LABEL MachineInstr to always be createdChris Lattner
with an MCSymbol instead of an immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98481 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
2010-02-12This should have gone in with 26015, see comments there.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09move target-independent opcodes out of TargetInstrInfoChris Lattner
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
2010-02-08Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflectDan Gohman
its current purpose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-07-18 00:52:43 +0000