Upstream arm64e and Pointer Authentication support#14

Merged

ahmedbougacha merged 45 commits intoapple/masterfrom dev/arm64e-upstream

Oct 29, 2019

+15,538-334

Commits on Oct 29, 2019

[AArch64][v8.3a] Add LDRA '[xN]!' alias.
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[AArch64][v8.3a] Add missing imp-defs on RETA*.
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[AArch64] Add 'vortex' CPU.
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[AArch64] Add 'lightning' CPU.
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[Triple] Add 'arm64e', an AArch64 sub-architecture.
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[Object] Add MachO CPU_SUBTYPE_ARM64E.
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[utils] Teach UpdateTestChecks about arm64e.
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[AArch64] Support emitting arm64e MachO in Darwin AsmBackend.
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[AArch64] Add helper functions for mapping PAC keys and instructions.
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[AArch64] Support @AUTH symbol variant and MachO reloc.
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[Docs] Document Pointer Authentication IR additions.
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[IR] Define new llvm.ptrauth intrinsics.
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[AArch64] Lower llvm.ptrauth.sign intrinsics.
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[AArch64] Lower llvm.ptrauth.auth/resign intrinsics.
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[AArch64] Lower llvm.ptrauth.strip intrinsics.
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[AArch64] Lower llvm.ptrauth.blend intrinsics.
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[AArch64] Lower auth calls/tail-calls.
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[AArch64] Fold auth + load sequences into LDRA.
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[AArch64] Support emitting "hardened" jump-tables.
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[IR] Define "ptrauth" operand bundles.
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[InstCombine] Combine ptrauth intrinsics into call operand bundles.
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[AArch64] Lower "llvm.ptrauth" signed global wrappers.
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[AArch64] Lower calls with ptrauth operand bundles.
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[AArch64] For arm64e Darwin TLS, sign the access thunk pointer.
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[AArch64] Support return address authentication.
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[Transforms] Add pass for software expansion of ptrauth.
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[DebugInfo] Add 'ptrauth' qualifier support.

adrian-prantl
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Basic ptrauth command-line flags.

rjmccall
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Add an API for computing an ABI-stable hash of a string.

rjmccall
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Add support for the new pointer authentication builtins.

rjmccall
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IRGen preliminaries for pointer authentication, hopefully NFC.

rjmccall
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Implement pointer authentication for function pointers.

rjmccall
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Pointer authentication for blocks.

rjmccall
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Pointer authentication support for ObjC method lists.

rjmccall
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Record the original declaration for which a v-table slot was created.

rjmccall
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Implement pointer authentication for C++ virtual functions,

rjmccall
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Pointer authentication support for C++ member function pointers.

rjmccall
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Add IR attributes to functions compiled under pointer authentication.

rjmccall
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Sign function pointers passed to atexit and __cxa_atexit.

rjmccall
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Sign the destructor pointer passed to __cxa_throw.

rjmccall
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Sign the v-table pointer in ObjC exception RTTI.

rjmccall
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Add prototype support for software pointer authentication.

rjmccall
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Implement the __ptrauth type qualifier.

rjmccall
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Make the CGPointerAuthInfo parameter to the general CGCallee

rjmccall
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Language documentation for the pointer authentication feature.

rjmccall
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ahmedbougacha
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