Commit Graph

3 Commits

Author SHA1 Message Date
Joey Gouly ad98f1671d [ARM] Introduce the 'sevl' instruction in ARMv8.
This also removes the restriction on the immediate field of the 'hint'
instruction.

llvm-svn: 191744
2013-10-01 12:39:11 +00:00
Joey Gouly 926d3f5809 [ARMv8] Implement the new DMB/DSB operands.
This removes the custom ISD Node: MEMBARRIER and replaces it
with an intrinsic.

llvm-svn: 190055
2013-09-05 15:35:24 +00:00
Richard Barton 8d519fe015 Add AArch32 DCPS{1,2,3} and HLT instructions.
These were pretty straightforward instructions, with some assembly support
required for HLT.

The ARM assembler is keen to split the instruction mnemonic into a
(non-existent) 'H' instruction with the LT condition code. An exception for
HLT is needed.

HLT follows the same rules as BKPT when in IT blocks, so the special BKPT
hadling code has been adapted to handle HLT also.

Regression tests added including diagnostic tests for out of range immediates
and illegal condition codes, as well as negative tests for pre-ARMv8.

llvm-svn: 190053
2013-09-05 14:14:19 +00:00