[ARM][Thumb2] support .w assembler qualifier for dmb/dsb/isb
authorStefan Agner <stefan@agner.ch>
Fri, 28 Feb 2020 11:03:14 +0000 (11:03 +0000)
committerOliver Stannard <oliver.stannard@linaro.org>
Fri, 28 Feb 2020 11:08:24 +0000 (11:08 +0000)
commit2f95d5f10344967ff36b84d442c7b40d501f77f5
treebbff93e15ada3dd89da88e43236f607308e4cb60
parentb4207e705b2b037d75876f10d12b730685020d94
[ARM][Thumb2] support .w assembler qualifier for dmb/dsb/isb

Support the explicit wide assembler qualifier for the dmb/dsb/isb synchronization barrier instructions.

Differential revision: https://reviews.llvm.org/D75143
llvm/lib/Target/ARM/ARMInstrThumb2.td
llvm/test/MC/ARM/basic-thumb2-instructions.s