Commit Graph

2 Commits

Author SHA1 Message Date
Florian Hahn cc524bf6ac [CodeGen] Add thumb-mode to target-features for arm/thumb triples.
Summary:
The thumb-mode target feature is used to force Thumb or ARM code
generation on a per-function basis. Explicitly adding +thumb-mode to
functions for thumbxx triples enables mixed ARM/Thumb code generation in
places where compilation units with thumbxx and armxx triples are merged
together (e.g. the IR linker or LTO).

For armxx triples, -thumb-mode is added in a similar fashion.

Reviewers: echristo, t.p.northover, kristof.beyls, rengolin

Reviewed By: echristo

Subscribers: rinon, aemerson, mehdi_amini, javed.absar, cfe-commits

Differential Revision: https://reviews.llvm.org/D33448

llvm-svn: 304897
2017-06-07 11:50:45 +00:00
Akira Hatanaka 580efb2475 [ARM] Pass subtarget feature "+no-movt" instead of passing backend option
"-arm-use-movt=0".
        
This change is needed since backend options do not make it to the backend
when doing LTO and are not capable of changing the behavior of code-gen
passes on a per-function basis.

rdar://problem/21529937

Differential Revision: http://reviews.llvm.org/D11025

llvm-svn: 242368
2015-07-16 00:43:00 +00:00