Commit Graph

3 Commits

Author SHA1 Message Date
Simon Tatham e8de8ba6a6 [ARM] Support inline assembler constraints for MVE.
"To" selects an odd-numbered GPR, and "Te" an even one. There are some
8.1-M instructions that have one too few bits in their register fields
and require registers of particular parity, without necessarily using
a consecutive even/odd pair.

Also, the constraint letter "t" should select an MVE q-register, when
MVE is present. This didn't need any source changes, but some extra
tests have been added.

Reviewers: dmgreen, samparker, SjoerdMeijer

Subscribers: javed.absar, eraman, kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D60709

llvm-svn: 364331
2019-06-25 16:49:32 +00:00
Jim Grosbach 2987c57924 Tests: check for target availability for target-specific tests.
Lots of tests are using an explicit target triple w/o first checking that the
target is actually available. Add a REQUIRES clause to a bunch of them. This should
hopefully unbreak bots which don't configure w/ all targets enabled.

llvm-svn: 159949
2012-07-09 18:34:21 +00:00
Stuart Hastings 7fdc6707ac Clang support for ARM Uv/Uy/Uq inline-asm constraints.
rdar://problem/9037836

llvm-svn: 132737
2011-06-07 23:45:05 +00:00