Commit Graph

4 Commits

Author SHA1 Message Date
Kevin Qin a4ee178762 [ARM64] Enable feature predicates for NEON / FP / CRYPTO.
AArch64 has feature predicates for NEON, FP and CRYPTO instructions.
This allows the compiler to generate code without using FP, NEON
or CRYPTO instructions.

llvm-svn: 206949
2014-04-23 06:22:48 +00:00
Bradley Smith a0dce246ed [ARM64] Tighten up the special casing in emitting arithmetic extends. UXTW should only be translated when the instruction uses WSP, not SP. Vice versa for UXTX and 64-bit instructions.
llvm-svn: 205886
2014-04-09 14:44:03 +00:00
Bradley Smith 664aa67153 [ARM64] Correctly alias LSL to UXTW for 32bit instruction variants, rather than UXTX
llvm-svn: 205861
2014-04-09 14:41:53 +00:00
Tim Northover 00ed9964c6 ARM64: initial backend import
This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

llvm-svn: 205090
2014-03-29 10:18:08 +00:00