Commit Graph

6 Commits

Author SHA1 Message Date
Tim Northover
4385f5dfce AArch64: implement ETMv4 trace system registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178637 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 12:31:29 +00:00
Tim Northover
42a1b2f0b1 AArch64: implement GICv3 system registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178236 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28 14:30:46 +00:00
Tim Northover
54a1cf75d2 AArch64: remove post-encoder method from FCMP (immediate) instructions.
The work done by the post-encoder (setting architecturally unused bits to 0 as
required) can be done by the existing operand that covers the "#0.0". This
removes at least one use of the discouraged PostEncoderMethod uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176261 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-28 14:46:14 +00:00
Tim Northover
cbff068398 Add AArch64 CRC32 instructions
These instructions are a late addition to the architecture, and may
yet end up behind an optional attribute, but for now they're available
at all times.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174496 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06 09:13:13 +00:00
Tim Northover
9e3b31345f Add icache prefetch operations to AArch64
This adds hints to the various "prfm" instructions so that they can
affect the instruction cache as well as the data cache.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174495 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06 09:04:56 +00:00
Tim Northover
72062f5744 Add AArch64 as an experimental target.
This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.

This initial commit should have support for:
    + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
      (except the late addition CRC instructions).
    + CodeGen features required for C++03 and C99.
    + Compilation for the "small" memory model: code+static data <
      4GB.
    + Absolute and position-independent code.
    + GNU-style (i.e. "__thread") TLS.
    + Debugging information.

The principal omission, currently, is performance tuning.

This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.

Further reviews would be gratefully received.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31 12:12:40 +00:00