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4f7d60c1ea
llvm-6502/lib/Target/AArch64
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Andrew Trick 4f7d60c1ea AArch64: Safely handle the incoming sret call argument. 
This adds a safe interface to the machine independent InputArg struct
for accessing the index of the original (IR-level) argument. When a
non-native return type is lowered, we generate the hidden
machine-level sret argument on-the-fly. Before this fix, we were
representing this argument as OrigArgIndex == 0, which is an outright
lie. In particular this crashed in the AArch64 backend where we
actually try to access the type of the original argument.

Now we use a sentinel value for machine arguments that have no
original argument index. AArch64, ARM, Mips, and PPC now check for this
case before accessing the original argument.

Fixes <rdar://19792160> Null pointer assertion in AArch64TargetLowering

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229413 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-16 18:10:47 +00:00
..
AsmParser Fix some unnoticed/unwanted behavior change from r222319. 2015-02-04 03:10:03 +00:00
Disassembler unique_ptrify the RelInfo parameter to TargetRegistry::createMCSymbolizer 2015-01-18 20:45:48 +00:00
InstPrinter [AArch64] Allow access to all system registers with MRS/MSR instructions. 2014-10-01 10:13:59 +00:00
MCTargetDesc Learn that __DATA,__objc_classrefs is not atomized via symbols. 2015-02-12 23:11:59 +00:00
TargetInfo AArch64: stop trying to take control of all UnknownArch triples. 2014-08-08 08:27:44 +00:00
Utils [AArch64] Allow access to all system registers with MRS/MSR instructions. 2014-10-01 10:13:59 +00:00
AArch64.h [PM] Remove a bunch of stale TTI creation method declarations. I nuked 2015-02-01 00:22:15 +00:00
AArch64.td Adding support to LLVM for targeting Cortex-A72 2015-02-04 13:31:29 +00:00
AArch64A53Fix835769.cpp Clean up some uses of getSubtarget in AArch64. 2015-01-30 01:10:24 +00:00
AArch64A57FPLoadBalancing.cpp [AArch64] Make AArch64A57FPLoadBalancing output stable. 2015-01-30 19:55:40 +00:00
AArch64AddressTypePromotion.cpp Fix typos in comments 2014-08-15 22:17:28 +00:00
AArch64AdvSIMDScalarPass.cpp This only needs TargetInstrInfo, not the specialized one. 2015-01-30 01:10:18 +00:00
AArch64AsmPrinter.cpp Migrate away from using a Subtarget except for the one place we want 2015-02-03 06:40:19 +00:00
AArch64BranchRelaxation.cpp Migrate AArch64 except for TTI and AsmPrinter away from getSubtargetImpl. 2015-01-28 03:51:33 +00:00
AArch64CallingConvention.h Move DataLayout back to the TargetMachine from TargetSubtargetInfo 2015-01-26 19:03:15 +00:00
AArch64CallingConvention.td Move DataLayout back to the TargetMachine from TargetSubtargetInfo 2015-01-26 19:03:15 +00:00
AArch64CleanupLocalDynamicTLSPass.cpp Clean up some uses of getSubtarget in AArch64. 2015-01-30 01:10:24 +00:00
AArch64CollectLOH.cpp Clean up some uses of getSubtarget in AArch64. 2015-01-30 01:10:24 +00:00
AArch64ConditionalCompares.cpp AArch64: Canonicalize access to function attributes, NFC 2015-02-14 02:09:06 +00:00
AArch64ConditionOptimizer.cpp Migrate AArch64 except for TTI and AsmPrinter away from getSubtargetImpl. 2015-01-28 03:51:33 +00:00
AArch64DeadRegisterDefinitionsPass.cpp Remove 'virtual' keyword from methods markedwith 'override' keyword. 2014-08-30 16:48:34 +00:00
AArch64ExpandPseudoInsts.cpp MathExtras: Bring Count(Trailing|Leading)Ones and CountPopulation in line with countTrailingZeros 2015-02-12 15:35:40 +00:00
AArch64FastISel.cpp Clean up some uses of getSubtarget in AArch64. 2015-01-30 01:10:24 +00:00
AArch64FrameLowering.cpp AArch64: Canonicalize access to function attributes, NFC 2015-02-14 02:09:06 +00:00
AArch64FrameLowering.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64InstrAtomics.td Make use of isAtLeastRelease/Acquire in the ARM/AArch64 backends 2014-08-18 16:48:58 +00:00
AArch64InstrFormats.td Replace neverHasSideEffects=1 with hasSideEffects=0 in all .td files. 2014-11-26 00:46:26 +00:00
AArch64InstrInfo.cpp Migrate AArch64 except for TTI and AsmPrinter away from getSubtargetImpl. 2015-01-28 03:51:33 +00:00
AArch64InstrInfo.h [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
AArch64InstrInfo.td [AArch64] Prefer DUP/MOV ("CPY") to INS for vector_extract. 2015-02-02 17:55:57 +00:00
AArch64ISelDAGToDAG.cpp AArch64: Canonicalize access to function attributes, NFC 2015-02-14 02:09:06 +00:00
AArch64ISelLowering.cpp AArch64: Safely handle the incoming sret call argument. 2015-02-16 18:10:47 +00:00
AArch64ISelLowering.h Remove getSubtargetImpl from AArch64ISelLowering and cache the 2015-01-29 00:19:42 +00:00
AArch64LoadStoreOptimizer.cpp Migrate AArch64 except for TTI and AsmPrinter away from getSubtargetImpl. 2015-01-28 03:51:33 +00:00
AArch64MachineCombinerPattern.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64MachineFunctionInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64MCInstLower.cpp Delete unused argument in AArch64MCInstLower constructor: it doesn't 2014-08-19 21:51:08 +00:00
AArch64MCInstLower.h Delete unused argument in AArch64MCInstLower constructor: it doesn't 2014-08-19 21:51:08 +00:00
AArch64PBQPRegAlloc.cpp [PBQP] Cautiously update edge costs in the solver 2015-02-11 08:25:36 +00:00
AArch64PBQPRegAlloc.h [AArch64] Cleanup A57PBQPConstraints 2014-10-22 12:40:20 +00:00
AArch64PerfectShuffle.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64PromoteConstant.cpp AArch64PromoteConstant: Modernize and resolve some Use<->User confusion. 2015-02-06 14:43:55 +00:00
AArch64RegisterInfo.cpp AArch64: add backend option to reserve x18 (platform register) 2015-01-21 15:43:31 +00:00
AArch64RegisterInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64RegisterInfo.td Teach the AArch64 backend about v4f16 and v8f16 2014-08-27 16:16:04 +00:00
AArch64SchedA53.td Fix typos 2014-05-31 21:26:28 +00:00
AArch64SchedA57.td [AArch64] Enable partial & runtime unrolling on cortex-a57. 2014-10-09 10:13:27 +00:00
AArch64SchedA57WriteRes.td [AArch64] Refines the Cortex-A57 Machine Model 2014-09-29 21:27:36 +00:00
AArch64SchedCyclone.td AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
AArch64Schedule.td AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
AArch64SelectionDAGInfo.cpp Remove the TargetMachine forwards for TargetSubtargetInfo based 2014-08-04 21:25:23 +00:00
AArch64SelectionDAGInfo.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64StorePairSuppress.cpp Clean up the AArch64 store pair suppression pass initialization 2015-01-27 07:54:36 +00:00
AArch64Subtarget.cpp Remove getSubtargetImpl from AArch64ISelLowering and cache the 2015-01-29 00:19:42 +00:00
AArch64Subtarget.h Move DataLayout back to the TargetMachine from TargetSubtargetInfo 2015-01-26 19:03:15 +00:00
AArch64TargetMachine.cpp AArch64: Canonicalize access to function attributes, NFC 2015-02-14 02:09:06 +00:00
AArch64TargetMachine.h [multiversion] Switch all of the targets over to use the 2015-02-01 13:20:00 +00:00
AArch64TargetObjectFile.cpp AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
AArch64TargetObjectFile.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
AArch64TargetTransformInfo.cpp [multiversion] Remove the function parameter from the unrolling 2015-02-01 14:31:23 +00:00
AArch64TargetTransformInfo.h [multiversion] Remove the function parameter from the unrolling 2015-02-01 14:31:23 +00:00
CMakeLists.txt [AArch64] Add workaround for Cortex-A53 erratum (835769) 2014-10-13 10:12:35 +00:00
LLVMBuild.txt Prune redundant libdeps. 2014-07-24 11:45:27 +00:00
Makefile AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00