Commit Graph

6 Commits

Author SHA1 Message Date
Xiang1 Zhang 6d234a6908 [X86] Zero some outputs of Kelocker intrinsics in error case
Reviewed By: WangPengfei

Differential Revision: https://reviews.llvm.org/D104766
2021-06-29 13:35:40 +08:00
Craig Topper a02b449bb1 [X86] Sync AESENC/DEC Key Locker builtins with gcc.
For the wide builtins, pass a single input and output pointer to
the builtins. Emit the GEPs and input loads from CGBuiltin.
2020-10-04 12:09:41 -07:00
Craig Topper 230c57b0bd [X86] Synchronize the encodekey builtins with gcc. Don't assume void* is 16 byte aligned.
We were taking multiple pointer arguments in the builtin.
gcc accepts a single void*.

The cast from void* to _m128i* caused the IR generation to assume
the pointer was aligned.

Instead make the builtin take a single void*, emit i8* GEPs to
adjust then cast to <2 x i64>* and perform a store with align of 1.
2020-10-04 12:09:35 -07:00
Craig Topper 28595cbbeb [X86] Synchronize the loadiwkey builtin operand order with gcc version. 2020-10-04 12:09:29 -07:00
Craig Topper 6c6cd5f8a9 [X86] Consolidate wide Key Locker intrinsics into the same header as the other Key Locker intrinsics. 2020-10-04 12:09:21 -07:00
Xiang1 Zhang 413577a879 [X86] Support Intel Key Locker
Key Locker provides a mechanism to encrypt and decrypt data with an AES key without having access
to the raw key value by converting AES keys into “handles”. These handles can be used to perform the
same encryption and decryption operations as the original AES keys, but they only work on the current
system and only until they are revoked. If software revokes Key Locker handles (e.g., on a reboot),
then any previous handles can no longer be used.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D88398
2020-09-30 18:08:45 +08:00