Commit Graph

17 Commits

Author SHA1 Message Date
Tim Northover
716d26b2ce AArch64: fix build on some MSVC versions
This does two things:

It removes a call to abs() which may have "long long" parameter on Windows,
which is not necessarily available in C++03.

It also corrects the signedness of Amount, which was relying on
implementation-defined conversions previously.

Code was already tested (albeit in an implemnetation defined way) so no extra
tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174885 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 14:25:52 +00:00
Tim Northover
77b1c9cf57 AArch64: Simplify logic in deciding whether bfi is valid
Previous code had a confusing comment which was mostly an implementation
detail. This condition corresponds to "lsb up to register width" and "width not
ridiculous".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174877 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 12:32:18 +00:00
Tim Northover
b516186386 Make use of DiagnosticType to provide better AArch64 diagnostics.
This gives a DiagnosticType to all AsmOperands in sight. This replaces all
"invalid operand" diagnostics with something more specific. The messages given
should still be sufficiently vague that they're not usually actively misleading
when LLVM guesses your instruction incorrectly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174871 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 09:29:37 +00:00
Joel Jones
612779eb83 Spelling correction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174852 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10 23:56:30 +00:00
Tim Northover
8a06229c89 Implement external weak (ELF) symbols on AArch64
Weakly defined symbols should evaluate to 0 if they're undefined at
link-time. This is impossible to do with the usual address generation
patterns, so we should use a literal pool entry to materlialise the
address.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174518 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06 16:43:33 +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
Jakob Stoklund Olesen
baa3c50a7b Move MRI liveouts to AArch64 return instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174415 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 18:21:49 +00:00
Tim Northover
a693205ce1 Fix signed-unsigned comparison warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174387 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 16:40:06 +00:00
Tim Northover
b9e1a33941 Fix remaining StringRef abuse.
This should fix the valgrind buildbot failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174375 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 15:01:51 +00:00
Tim Northover
dfe076af98 Fix formatting in AArch64 backend.
This should fix three purely whitespace issues:
    + 80 column violations.
    + Tab characters.
    + TableGen brace placement.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174370 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 13:24:56 +00:00
Tim Northover
19254c49a8 Remove cyclic dependency in AArch64 libraries
This moves the bit twiddling and string fiddling functions required by other
parts of the backend into a separate library. Previously they resided in
AArch64Desc, which created a circular dependency between various components.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174369 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 13:24:47 +00:00
Tim Northover
42a68443a1 Fix some abuses of StringRef
We were taking a StringRef to a temporary result, which can go horribly wrong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174328 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04 15:44:38 +00:00
Tim Northover
17174e5900 Give explicit suffix to integer constant over 32-bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174324 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04 14:14:58 +00:00
Tim Northover
84d3239889 Remove currently unused register decoder from AArch64.
This should fix a warning when building this backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174177 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01 14:55:05 +00:00
Tim Northover
a9da5c50e2 Update AArch64 backend to changed eliminateFrameIndex interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174086 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31 20:46:53 +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