2 Commits

Author	SHA1	Message	Date
Peter Collingbourne	015d30c807	ELF: Add support for short thunks on ARM. ... A short thunk uses a direct branch (b or b.w) instruction, and is used when the target has the same thumbness as the thunk and is within direct branch range (32MB for ARM, 16MB for Thumb-2). Reduces the size of Chromium for Android's .text section by around 160KB. Differential Revision: https://reviews.llvm.org/D44963 llvm-svn: 328846	2018-03-29 22:43:52 +00:00
Peter Smith	75030b6d56	[ELF] Introduce range extension thunks for ARM ... This change adds initial support for range extension thunks. All thunks must be created within the first pass so some corner cases are not supported. A follow up patch will add support for multiple passes. With this change the existing tests arm-branch-error.s and arm-thumb-branch-error.s now no longer fail with an out of range branch. These have been renamed and tests added for the range extension thunk. Differential Revision: https://reviews.llvm.org/D34691 llvm-svn: 316752	2017-10-27 09:04:11 +00:00