Commit Graph

2269 Commits

Author SHA1 Message Date
Owen Anderson
e4e5e2aae7 Add support to the ARM MC infrastructure to support mcr and friends. This requires supporting
the symbolic immediate names used for these instructions, fixing their pretty-printers, and
adding proper encoding information for them.

With this, we can properly pretty-print and encode assembly like:
	mrc p15, , r3, c13, c0, 

Fixes <rdar://problem/8857858>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13 21:46:02 +00:00
Evan Cheng
7597212abc Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step
in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13 07:58:56 +00:00
Daniel Dunbar
083203dde8 MC/AsmMatcher: Fix indirect 80-col viola.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123174 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 15:26:11 +00:00
Bob Wilson
067a16c974 Use __builtin_shufflevector to implement vget_low and vget_high intrinsics.
This was suggested by Edmund Grimley Evans in pr8411.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123043 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-07 23:40:49 +00:00
David Greene
1434f66b2e Rename lisp-like functions as suggested by Gabor Greif as loooong time
ago.  This is both easier to learn and easier to read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123001 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-07 17:05:37 +00:00
Jim Grosbach
398abb4a9a Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24 05:06:32 +00:00
Chris Lattner
036609bd7d Flag -> Glue, the ongoing saga
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 18:28:41 +00:00
Chris Lattner
29d8f0cae4 flags -> glue for selectiondag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 17:24:32 +00:00
Chris Lattner
a4359be032 sdisel flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 17:13:18 +00:00
Chris Lattner
8950bcaa5a continue renaming flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122506 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 17:03:20 +00:00
Jeffrey Yasskin
8e68c38735 Change all self assignments X=X to (void)X, so that we can turn on a
new gcc warning that complains on self-assignments and
self-initializations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 00:58:24 +00:00
Jim Grosbach
fbadcd0826 Tidy up a bit. Trailing whitespace, hard tabs and 80-columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122337 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 16:16:00 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:38:05 +00:00
Bob Wilson
14595d967f Neon intrinsic tests need to be compiled for Cortex-A9 for f16 support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122015 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 01:21:03 +00:00
Michael J. Spencer
3ff9563c3e MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16 03:29:14 +00:00
Bob Wilson
ae6be764f9 Teach the Neon intrinsic generator to widen half-precision float types.
This isn't currently used for anything but I ran into it when experimenting
with some changes, and it might be useful in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 23:16:25 +00:00
Bob Wilson
333f5194cb Add a Neon intrinsic test generator.
This is still a WIP.  It's already good enough to expose a few bugs, though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 16:58:45 +00:00
Bob Wilson
06b04aaf5c Fix Neon intrinsic immediate range checking for some double-register operands.
Some quad-register intrinsics with lane operands only take a double-register
operand for the vector containing the lane.  The valid range of lane numbers
is then half as big as you would expect from the quad-register type.
Note: This currently has no effect because those intrinsics are now handled
entirely in the header file using __builtin_shufflevector, which does its own
range checking, but I want to use this for generating tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 16:58:42 +00:00
Chris Lattner
9c6b60eb28 various cleanups to tblgen, patch by Garrison Venn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 04:48:22 +00:00
Mikhail Glushenkov
87685e8e8f llvmc: make switch options ZeroOrMore by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121822 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 01:21:59 +00:00
Jakob Stoklund Olesen
b83ff84193 Introduce TargetRegisterInfo::getOverlaps(Reg), returning a list of all
registers that alias Reg, including itself. This is almost the same as the
existing getAliasSet() method, except for the inclusion of Reg.

The name matches the reflexive TRI::regsOverlap(x, y) relation.

It is very common to do stuff to a register and all its aliases:

  stuff(Reg)
  for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
    stuff(*Alias);

That can now be written as the simpler:

  for (const unsigned *Alias = TRI->getOverlaps(Reg); *Alias; ++Alias)
    stuff(*Alias);

This change requires a bit more constant space for the alias lists because Reg
is included and because the empty alias list cannot be shared any longer.

If the getAliasSet method is eventually removed, this space can be reclaimed by
sharing overlap lists. For instance, %rax and %eax have identical overlap sets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121800 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14 23:03:42 +00:00
Jim Grosbach
d40963c406 Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://8755755
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14 22:28:03 +00:00
Bill Wendling
f4caf69720 The tLDR et al instructions were emitting either a reg/reg or reg/imm
instruction based on the t_addrmode_s# mode and what it returned. There is some
obvious badness to this. In particular, it's hard to do MC-encoding when the
instruction may change out from underneath you after the t_addrmode_s# variable
is finally resolved.

The solution is to revert a long-ago change that merged the reg/reg and reg/imm
versions. There is the addition of several new addressing modes. They no longer
have extraneous operands associated with them. I.e., if it's reg/reg we don't
have to have a dummy zero immediate tacked on to the SDNode.

There are some obvious cleanups here, which will happen shortly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14 03:36:38 +00:00
Owen Anderson
a838a25d59 Second attempt at make Thumb2 LEAs pseudos. This time, perform the lowering much later, which makes the entire
process cleaner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14 00:36:49 +00:00
Bob Wilson
4711d5cda3 Remove the rest of the *_sfp Neon instruction patterns.
Use the same COPY_TO_REGCLASS approach as for the 2-register *_sfp instructions.
This change made a big difference in the code generated for the
CodeGen/Thumb2/cross-rc-coalescing-2.ll test: The coalescer is still doing
a fine job, but some instructions that were previously moved outside the loop
are not moved now.  It's using fewer VFP registers now, which is generally
a good thing, so I think the estimates for register pressure changed and that
affected the LICM behavior.  Since that isn't obviously wrong, I've just
changed the test file.  This completes the work for Radar 8711675.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121730 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 23:02:37 +00:00
Owen Anderson
6b8719fd7d Revert r121721, which broke buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 22:51:08 +00:00
Owen Anderson
e8d02539d7 Make Thumb2 LEA-like instruction into pseudos, which map down to ADR. Provide correct fixups for Thumb2 ADR,
which is _of course_ different from ARM ADR fixups, or any other Thumb2 fixup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 22:29:52 +00:00
Owen Anderson
c266600bec In Thumb2, direct branches can be encoded as either a "short" conditional branch with a null predicate, or
as a "long" direct branch.  While the mnemonics are the same, they encode the branch offset differently, and
the Darwin assembler appears to prefer the "long" form for direct branches.  Thus, in the name of bitwise
equivalence, provide encoding and fixup support for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 19:31:11 +00:00
Bill Wendling
548f5a0b75 Add support for using the `!if' operator when initializing variables:
class A<bit a, bits<3> x, bits<3> y> {
    bits<3> z;
    let z = !if(a, x, y);
  }

The variable z will get the value of x when 'a' is 1 and 'y' when a is '0'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 01:46:19 +00:00
Bill Wendling
eac8f35da8 Move <map> include out of .h and into .cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 01:05:54 +00:00
Bill Wendling
6a97ed34ed Merge DEBUG statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 01:03:49 +00:00
Chris Lattner
67db883487 eliminate the Records global variable, patch by Garrison Venn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121659 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 00:23:57 +00:00
Chris Lattner
9d6250f52b clean up RecordKeeper::getAllDerivedDefinitions, patch by Garrison Venn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121658 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 00:20:52 +00:00
Bill Wendling
ab7837c269 Get rid of ellipses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121589 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10 22:54:30 +00:00
Jim Grosbach
e246717c3a Thumb unconditional branch binary encoding. rdar://8754994
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10 18:21:33 +00:00
Jim Grosbach
0108645139 Thumb conditional branch binary encodings. rdar://8745367
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10 17:13:40 +00:00
Bob Wilson
c2ef828616 The Neon vqdmlsl_lane and vqdmlal_lane intrinsics have 4 arguments, not 3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10 06:37:53 +00:00
Jim Grosbach
cf6220a9de Thumb needs a few different encoding schemes for branch targets. Rename
t_brtarget to be more specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121398 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 19:01:46 +00:00
Bob Wilson
b78558c0e1 80-column fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 18:43:35 +00:00
Bob Wilson
0e1fb7afcc Add a license comment to the generated arm_neon.h header.
Remove the previous header.  I don't think we need to expose to end users
that we use TableGen to produce our version of arm_neon.h, and that header
was also using doubleslash comments which could be a problem when using it
in strict C89 compilations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 18:31:01 +00:00
Michael J. Spencer
333fb04506 Support/MemoryBuffer: Replace all uses of std::string *ErrMsg with error_code &ec. And fix clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 17:36:48 +00:00
Bill Wendling
09aa3f0ef3 The BLX instruction is encoded differently than the BL, because why not? In
particular, the immediate has 20-bits of value instead of 21. And bit 0 is '0'
always. Going through the BL fixup encoding was trashing the "bit 0 is '0'"
invariant.

Attempt to get the encoding at slightly more correct with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 00:39:08 +00:00
Bill Wendling
dff2f7151f Support the "target" encodings for the CB[N]Z instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 23:01:43 +00:00
Bob Wilson
7441089c9b Add operators for "_lane" variants of some saturating Neon multiply intrinsics
so they can be implemented without separate clang builtins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 22:36:08 +00:00
Bob Wilson
b4504308ce Add operators for vabdl and vabal so they can be implemented without builtins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 21:39:04 +00:00
Bob Wilson
b1e9df3b72 Remove unused function parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121286 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 21:39:00 +00:00
Bob Wilson
f4f39d35cd Add an operator for vaba so it can be implemented using vabd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 20:09:10 +00:00
Bill Wendling
cd466f582a Use this new fangled StringSwitch technology.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121273 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 20:02:49 +00:00
Bill Wendling
dd2b6cbb62 Cleanup table a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121250 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 13:03:15 +00:00
Bill Wendling
b8958b031e Add support for loading from a constant pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 01:57:09 +00:00