llvm-project/llvm/lib/Target/AArch64
Francis Visoiu Mistrih f2c22050e8 [AArch64] Use FP to access the emergency spill slot
In the presence of variable-sized stack objects, we always picked the
base pointer when resolving frame indices if it was available.

This makes us hit an assert where we can't reach the emergency spill
slot if it's too far away from the base pointer. Since on AArch64 we
decide to place the emergency spill slot at the top of the frame, it
makes more sense to use FP to access it.

The changes here don't affect only emergency spill slots but all the
frame indices. The goal here is to try to choose between FP, BP and SP
so that we minimize the offset and avoid scavenging, or worse, asserting
when trying to access a slot allocated by the scavenger.

Previously discussed here: https://reviews.llvm.org/D40876.

Differential Revision: https://reviews.llvm.org/D45358

llvm-svn: 329691
2018-04-10 11:29:40 +00:00
..
AsmParser AArch64: diagnose unpredictable store-exclusive instructions 2018-04-10 11:04:29 +00:00
Disassembler [AArch64][SVE] Asm: Add AND_ZI instructions and aliases 2018-02-06 13:13:21 +00:00
InstPrinter [AArch64][AsmParser] NFC: Generalize LogicalImm[Not](32|64) code 2018-01-29 13:05:38 +00:00
MCTargetDesc [AArch64] Decorate AArch64 instrs with OPERAND_PCREL 2018-03-27 16:58:01 +00:00
TargetInfo Add backend name to Target to enable runtime info to be fed back into TableGen 2017-11-15 23:55:44 +00:00
Utils [AArch64][SVE] Asm: Predicate patterns 2018-01-22 10:46:00 +00:00
AArch64.h [AArch64] Avoid SIMD interleaved store instruction for Exynos. 2017-12-08 00:58:49 +00:00
AArch64.td [PATCH] [AArch64] Add new target feature to fuse conditional select 2018-02-23 19:27:43 +00:00
AArch64A53Fix835769.cpp Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering 2017-11-08 01:01:31 +00:00
AArch64A57FPLoadBalancing.cpp [AArch64] Change std::sort to llvm::sort in response to r327219 2018-04-04 18:20:28 +00:00
AArch64AdvSIMDScalarPass.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64AsmPrinter.cpp [CodeGen] Hoist common AsmPrinter code out of X86, ARM, and AArch64 2018-01-17 23:55:23 +00:00
AArch64CallLowering.cpp [IR][CodeGen] Remove dependency on EVT from IR/Function.cpp. Move EVT to CodeGen layer. 2018-03-29 17:21:10 +00:00
AArch64CallLowering.h GlobalISel (AArch64): fix ABI at border between GPRs and SP. 2017-08-21 21:56:11 +00:00
AArch64CallingConvention.h Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering 2017-11-08 01:01:31 +00:00
AArch64CallingConvention.td AArch64: Implement support for the shadowcallstack attribute. 2018-04-04 21:55:44 +00:00
AArch64CleanupLocalDynamicTLSPass.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64CollectLOH.cpp Revert "[CodeGen] Move printing '\n' from MachineInstr::print to MachineBasicBlock::print" 2018-02-19 15:08:49 +00:00
AArch64CondBrTuning.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64ConditionOptimizer.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64ConditionalCompares.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64DeadRegisterDefinitionsPass.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64ExpandPseudoInsts.cpp [AArch64] Fold adds with tprel_lo12_nc and secrel_lo12 into a following ldr/str 2018-03-12 18:47:43 +00:00
AArch64FalkorHWPFFix.cpp State that CFG is preserved in 'Falkor HW Prefetch Fix Late Phase'. 2018-03-22 23:44:40 +00:00
AArch64FastISel.cpp [IR][CodeGen] Remove dependency on EVT from IR/Function.cpp. Move EVT to CodeGen layer. 2018-03-29 17:21:10 +00:00
AArch64FrameLowering.cpp [AArch64] Use FP to access the emergency spill slot 2018-04-10 11:29:40 +00:00
AArch64FrameLowering.h Move TargetFrameLowering.h to CodeGen where it's implemented 2017-11-03 22:32:11 +00:00
AArch64GenRegisterBankInfo.def [AArch64][RegisterBankInfo] Teach instruction mapping about gpr32 -> fpr16 cross copies 2017-11-18 04:28:56 +00:00
AArch64ISelDAGToDAG.cpp AArch64: Allow offsets to be folded into addresses with ELF. 2018-04-09 19:59:57 +00:00
AArch64ISelLowering.cpp AArch64: Allow offsets to be folded into addresses with ELF. 2018-04-09 19:59:57 +00:00
AArch64ISelLowering.h [AArch64] Don't reduce the width of loads if it prevents combining a shift 2018-03-23 14:47:07 +00:00
AArch64InstrAtomics.td [AArch64] Improve v8.1-A code-gen for atomic load-and 2018-02-12 17:03:11 +00:00
AArch64InstrFormats.td [AArch64][SVE] Asm: Add support for SVE INDEX instructions. 2018-04-10 07:01:53 +00:00
AArch64InstrInfo.cpp [MachineOutliner] Keep track of fns that use a redzone in AArch64FunctionInfo 2018-04-03 21:56:10 +00:00
AArch64InstrInfo.h [MachineOutliner] Add `useMachineOutliner` target hook 2018-04-04 19:13:31 +00:00
AArch64InstrInfo.td [AArch64] Add patterns matching (fabs (fsub x y)) to (fabd x y) 2018-04-04 10:12:53 +00:00
AArch64InstructionSelector.cpp [AArch64][GlobalISel] When copying from a gpr32 to an fpr16 reg, convert to fpr32 first. 2018-02-20 05:11:57 +00:00
AArch64LegalizerInfo.cpp [globalisel][legalizerinfo] Add support for the Lower action in getActionDefinitionsBuilder() and use it in AArch64. 2018-04-09 21:10:09 +00:00
AArch64LegalizerInfo.h [aarch64][globalisel] Define G_ATOMIC_CMPXCHG and G_ATOMICRMW_* and make them legal 2017-11-28 20:21:15 +00:00
AArch64LoadStoreOptimizer.cpp [CodeGen] Add a new pass for PostRA sink 2018-03-22 20:06:47 +00:00
AArch64MCInstLower.cpp Move TargetLoweringObjectFile from CodeGen to Target to fix layering 2018-03-23 23:58:19 +00:00
AArch64MCInstLower.h [COFF, ARM64] Add support for Windows ARM64 COFF format 2017-06-27 23:58:19 +00:00
AArch64MachineFunctionInfo.h [MachineOutliner] Keep track of fns that use a redzone in AArch64FunctionInfo 2018-04-03 21:56:10 +00:00
AArch64MacroFusion.cpp [PATCH] [AArch64] Add new target feature to fuse conditional select 2018-02-23 19:27:43 +00:00
AArch64MacroFusion.h Recommit rL305677: [CodeGen] Add generic MacroFusion pass 2017-06-19 12:53:31 +00:00
AArch64PBQPRegAlloc.cpp Rename LiveIntervalAnalysis.h to LiveIntervals.h 2017-12-13 02:51:04 +00:00
AArch64PBQPRegAlloc.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-01 23:25:02 +00:00
AArch64PerfectShuffle.h
AArch64PromoteConstant.cpp [AArch64] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-07-25 23:51:02 +00:00
AArch64RedundantCopyElimination.cpp MachineFunction: Return reference from getFunction(); NFC 2017-12-15 22:22:58 +00:00
AArch64RegisterBankInfo.cpp [AArch64] Map G_LOAD on FPR when the definition goes to a copy to FPR 2017-11-18 04:28:59 +00:00
AArch64RegisterBankInfo.h [AArch64][RegisterBankInfo] Add mapping for G_FPEXT. 2017-11-02 23:38:19 +00:00
AArch64RegisterBanks.td [aarch64][globalisel] Register banks and classes should have distinct names. 2017-10-18 00:12:43 +00:00
AArch64RegisterInfo.cpp AArch64: Implement support for the shadowcallstack attribute. 2018-04-04 21:55:44 +00:00
AArch64RegisterInfo.h [AArch64] Implement dynamic stack probing for windows 2018-02-17 14:26:32 +00:00
AArch64RegisterInfo.td [AArch64][SVE] Asm: Add restricted register classes for SVE predicate vectors. 2018-01-03 10:15:46 +00:00
AArch64SIMDInstrOpt.cpp [TargetSchedule] shrink interface for init(); NFCI 2018-04-08 19:56:04 +00:00
AArch64SVEInstrInfo.td [AArch64][SVE] Asm: Add support for unpredicated LSL/LSR (shift by immediate) instructions. 2018-04-10 10:03:13 +00:00
AArch64SchedA53.td [AArch64] Clean-up a few over-eager regexps in models. 2018-03-23 11:00:42 +00:00
AArch64SchedA57.td [AArch64][SVE] Asm: Set SVE as unsupported feature for existing scheduler models. 2017-11-07 15:03:11 +00:00
AArch64SchedA57WriteRes.td
AArch64SchedCyclone.td [AArch64][SVE] Asm: Set SVE as unsupported feature for existing scheduler models. 2017-11-07 15:03:11 +00:00
AArch64SchedExynosM1.td [AArch64][NFC] Make all ProcResource definitions include their SchedModel. 2018-02-01 12:12:01 +00:00
AArch64SchedExynosM3.td [AArch64] Adjust the cost model for Exynos M3 2018-04-03 22:57:17 +00:00
AArch64SchedFalkor.td [TableGen] When trying to reuse a scheduler class for instructions from an InstRW, make sure we haven't already seen another InstRW containing this instruction on this CPU. 2018-03-18 19:56:15 +00:00
AArch64SchedFalkorDetails.td [AArch64][Falkor] Correct load/store increment scheduling details 2018-03-20 13:46:35 +00:00
AArch64SchedKryo.td [TableGen] When trying to reuse a scheduler class for instructions from an InstRW, make sure we haven't already seen another InstRW containing this instruction on this CPU. 2018-03-18 19:56:15 +00:00
AArch64SchedKryoDetails.td [AArch64][Kryo] Add missing write latency for LDAXP, LDXP second destination. 2017-06-19 21:57:42 +00:00
AArch64SchedThunderX.td [TableGen] When trying to reuse a scheduler class for instructions from an InstRW, make sure we haven't already seen another InstRW containing this instruction on this CPU. 2018-03-18 19:56:15 +00:00
AArch64SchedThunderX2T99.td [AArch64] Clean-up a few over-eager regexps in models. 2018-03-23 11:00:42 +00:00
AArch64Schedule.td
AArch64SelectionDAGInfo.cpp AArch64/X86: Factor out common bzero logic; NFC 2017-12-18 23:14:28 +00:00
AArch64SelectionDAGInfo.h
AArch64StorePairSuppress.cpp [TargetSchedule] shrink interface for init(); NFCI 2018-04-08 19:56:04 +00:00
AArch64Subtarget.cpp AArch64: Implement support for the shadowcallstack attribute. 2018-04-04 21:55:44 +00:00
AArch64Subtarget.h [PATCH] [AArch64] Add new target feature to fuse conditional select 2018-02-23 19:27:43 +00:00
AArch64SystemOperands.td [AArch64] Fix spelling of ICH_ELRSR_EL2 system register 2018-02-06 09:39:04 +00:00
AArch64TargetMachine.cpp Plumb useAA through TargetTransformInfo to remove Transforms->CodeGen header dependency 2018-03-28 22:28:50 +00:00
AArch64TargetMachine.h (Re-landing) Expose a TargetMachine::getTargetTransformInfo function 2017-12-22 18:21:59 +00:00
AArch64TargetObjectFile.cpp Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
AArch64TargetObjectFile.h Move TargetLoweringObjectFile from CodeGen to Target to fix layering 2018-03-23 23:58:19 +00:00
AArch64TargetTransformInfo.cpp [AArch64] Implement getArithmeticReductionCost 2018-03-16 11:34:15 +00:00
AArch64TargetTransformInfo.h [AArch64] Implement getArithmeticReductionCost 2018-03-16 11:34:15 +00:00
CMakeLists.txt Sort targetgen calls in lib/Target/*/CMakeLists. 2018-04-04 12:37:44 +00:00
LLVMBuild.txt
SVEInstrFormats.td [AArch64][SVE] Asm: Add support for unpredicated LSL/LSR (shift by immediate) instructions. 2018-04-10 10:03:13 +00:00