2 Commits

Author	SHA1	Message	Date
David Green	8f4233c385	[AArch64] Optimise load(adr address) to ldr address ... Providing that the load is known to be 4 byte aligned, we can optimise a ldr(adr address) to just ldr address. Differential Revision: https://reviews.llvm.org/D51030 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341058 91177308-0d34-0410-b5e6-96231b3b80d8	2018-08-30 11:55:16 +00:00
David Green	3d765ce4b7	[AArch64] Add Tiny Code Model for AArch64 ... This adds the plumbing for the Tiny code model for the AArch64 backend. This, instead of loading addresses through the normal ADRP;ADD pair used in the Small model, uses a single ADR. The 21 bit range of an ADR means that the code and its statically defined symbols need to be within 1MB of each other. This makes it mostly interesting for embedded applications where we want to fit as much as we can in as small a space as possible. Differential Revision: https://reviews.llvm.org/D49673 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340397 91177308-0d34-0410-b5e6-96231b3b80d8	2018-08-22 11:31:39 +00:00