Commit Graph

9278 Commits

Author SHA1 Message Date
Anton Korobeynikov
0b725f17e0 Add one more 'magic' define :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:57:43 +00:00
Anton Korobeynikov
7a17ff7b3f Unbreak non-PPC builds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:38:31 +00:00
Anton Korobeynikov
210539ebc4 Provide generic hooks for icache invalidation. Add PPC implementation.
Patch by Gary Benson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52418 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:30:05 +00:00
Evan Cheng
851bc04533 Rather than avoiding to wrap ISD::DECLARE GV operand in X86ISD::Wrapper, simply handle it at dagisel time with x86 specific isel code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52377 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 02:01:22 +00:00
Evan Cheng
4e444436f2 Horizontal-add instructions are not commutative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:16:24 +00:00
Evan Cheng
35b9a7790e mpsadbw is commutable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52352 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 20:25:59 +00:00
Chris Lattner
16228c08b4 Add support for icache invalidation on non-darwin ppc systems.
Patch by Gary Benson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 17:04:06 +00:00
Evan Cheng
58dcb0e0cd Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 07:33:11 +00:00
Chris Lattner
9e4ff94ff7 Switch from generating the int128 typedefs based on targetdata to generating
them based on the end-compiler's capabilities.  This fixes PR2453


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52297 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 04:25:29 +00:00
Andrew Lenharth
507a58ac9b add missing atomic intrinsic from gcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52270 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-14 05:48:15 +00:00
Duncan Sands
d4b9c17fb7 Disable some DAG combiner optimizations that may be
wrong for volatile loads and stores.  In fact this
is almost all of them!  There are three types of
problems: (1) it is wrong to change the width of
a volatile memory access.  These may be used to
do memory mapped i/o, in which case a load can have
an effect even if the result is not used.  Consider
loading an i32 but only using the lower 8 bits.  It
is wrong to change this into a load of an i8, because
you are no longer tickling the other three bytes.  It
is also unwise to make a load/store wider.  For
example, changing an i16 load into an i32 load is
wrong no matter how aligned things are, since the
fact of loading an additional 2 bytes can have
i/o side-effects.  (2) it is wrong to change the
number of volatile load/stores: they may be counted
by the hardware.  (3) it is wrong to change a volatile
load/store that requires one memory access into one
that requires several.  For example on x86-32, you
can store a double in one processor operation, but to
store an i64 requires two (two i32 stores).  In a
multi-threaded program you may want to bitcast an i64
to a double and store as a double because that will
occur atomically, and be indivisible to other threads.
So it would be wrong to convert the store-of-double
into a store of an i64, because this will become two
i32 stores - no longer atomic.  My policy here is
to say that the number of processor operations for
an illegal operation is undefined.  So it is alright
to change a store of an i64 (requires at least two
stores; but could be validly lowered to memcpy for
example) into a store of double (one processor op).
In short, if the new store is legal and has the same
size then I say that the transform is ok.  It would
also be possible to say that transforms are always
ok if before they were illegal, whether after they
are illegal or not, but that's more awkward to do
and I doubt it buys us anything much.
However this exposed an interesting thing - on x86-32
a store of i64 is considered legal!  That is because
operations are marked legal by default, regardless of
whether the type is legal or not.  In some ways this
is clever: before type legalization this means that
operations on illegal types are considered legal;
after type legalization there are no illegal types
so now operations are only legal if they really are.
But I consider this to be too cunning for mere mortals.
Better to do things explicitly by testing AfterLegalize.
So I have changed things so that operations with illegal
types are considered illegal - indeed they can never
map to a machine operation.  However this means that
the DAG combiner is more conservative because before
it was "accidentally" performing transforms where the
type was illegal because the operation was nonetheless
marked legal.  So in a few such places I added a check
on AfterLegalize, which I suppose was actually just
forgotten before.  This causes the DAG combiner to do
slightly more than it used to, which resulted in the X86
backend blowing up because it got a slightly surprising
node it wasn't expecting, so I tweaked it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52254 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-13 19:07:40 +00:00
Anton Korobeynikov
096b461b2e Properly lower DYNAMIC_STACKALLOC - bracket all black magic with
CALLSEQ_BEGIN & CALLSEQ_END.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52225 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-11 20:16:42 +00:00
Dan Gohman
75146a6725 CPPBackend support for extractvalue and insertvalue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-09 14:12:10 +00:00
Dan Gohman
26825a84e9 Abort on an unrecognized opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52146 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-09 14:09:13 +00:00
Dan Gohman
e8e3b5585a Update the CPP backend for the ConstantFP::get API change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52144 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-09 14:08:11 +00:00
Rafael Espindola
d674b4e87d add support for PIC on linux x86-64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-09 09:52:31 +00:00
Duncan Sands
8e4eb09b1e Remove comparison methods for MVT. The main cause
of apint codegen failure is the DAG combiner doing
the wrong thing because it was comparing MVT's using
< rather than comparing the number of bits.  Removing
the < method makes this mistake impossible to commit.
Instead, add helper methods for comparing bits and use
them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52098 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-08 20:54:56 +00:00
Bruno Cardoso Lopes
e90ea5e81f Added FP instruction formats.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52086 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-08 01:39:36 +00:00
Bill Wendling
a8a8f427d6 Temporarily reverting r52056. It's causing PPC to fail to bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-08 01:36:24 +00:00
Bruno Cardoso Lopes
dfac7cb306 Added support for FP Registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-07 21:32:41 +00:00
Evan Cheng
3e3aa86b68 Revert r52046. It broke cbe on x86 / Mac OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52071 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-07 07:50:29 +00:00
Evan Cheng
929b39f0a0 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 21:00:10 +00:00
Evan Cheng
6b4a65f4e7 PPC preferred loop alignment is 16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52056 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 19:50:46 +00:00
Anton Korobeynikov
001c73e3a1 Handle assembler identifiers specially in CBE. This fixes PR2418.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 16:08:26 +00:00
Duncan Sands
83ec4b6711 Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52044 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 12:08:01 +00:00
Bruno Cardoso Lopes
0af5e095ad Added custom isel for MUL, SDIVREM, UDIVREM, SMUL_LOHI and UMUL_LOHI nodes
MUL is not anymore directly matched because its a pseudoinstruction.
LogicI class fixed to zero-extend immediates. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52036 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 06:37:31 +00:00
Bruno Cardoso Lopes
07cec75913 Added custom SELECT_CC lowering
Added special isel for ADDE,SUBE and new patterns to match SUBC,ADDC


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 00:58:26 +00:00
Evan Cheng
1b022cf688 Don't break strict aliasing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-05 22:59:21 +00:00
Chris Lattner
67f631dfd5 Rewrite a bunch of the CBE's inline asm code, giving it the
ability to handle indirect input operands.  This fixes PR2407.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51952 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04 18:03:28 +00:00
Duncan Sands
a0fcc08e65 Change packed struct layout so that field sizes
are the same as in unpacked structs, only field
positions differ.  This only matters for structs
containing x86 long double or an apint; it may
cause backwards compatibility problems if someone
has bitcode containing a packed struct with a
field of one of those types.
The issue is that only 10 bytes are needed to
hold an x86 long double: the store size is 10
bytes, but the ABI size is 12 or 16 bytes (linux/
darwin) which comes from rounding the store size
up by the alignment.  Because it seemed silly not
to pack an x86 long double into 10 bytes in a
packed struct, this is what was done.  I now
think this was a mistake.  Reserving the ABI size
for an x86 long double field even in a packed
struct makes things more uniform: the ABI size is
now always used when reserving space for a type.
This means that developers are less likely to
make mistakes.  It also makes life easier for the
CBE which otherwise could not represent all LLVM
packed structs (PR2402).
Front-end people might need to adjust the way
they create LLVM structs - see following change
to llvm-gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51928 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04 08:21:45 +00:00
Bruno Cardoso Lopes
d2947ee33e Some Mips minor fixes
Added support for mips little endian arch => mipsel



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51923 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04 01:45:25 +00:00
Dale Johannesen
428ac54894 Add StringConstantPrefix to control what the
assembler names of string constants look like.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51909 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-03 18:09:06 +00:00
Scott Michel
8bf61e8c2a Add necessary 64-bit support so that gcc frontend compiles (mostly). Current
issue is operand promotion for setcc/select... but looks like the fundamental
stuff is implemented for CellSPU.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51884 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-02 22:18:03 +00:00
Dan Gohman
193c235850 Implement CBE support for first-class structs and array values,
and insertvalue and extractvalue instructions.

First-class array values are not trivial because C doesn't
support them. The approach I took here is to wrap all arrays
in structs. Feedback is welcome.

The 2007-01-15-NamedArrayType.ll test needed to be modified
because it has a "not grep" for a string that now exists,
because array types now have associated struct types, and
those struct types have names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51881 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-02 21:30:49 +00:00
Rafael Espindola
da5860fa8b Don't use the GOT for symbols that are not externally visible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51865 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-02 07:52:43 +00:00
Bruno Cardoso Lopes
bdbb750afe Fixed flag issue that was generating infinite loop while in list scheduling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51833 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01 03:49:39 +00:00
Nick Lewycky
517e1f5cd7 Peer through sext/zext when looking for not(cmp).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51819 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 19:01:33 +00:00
Nick Lewycky
4914db09a5 Yay us! Every one of these examples turns into icmp/zext/ret.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51818 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 18:20:26 +00:00
Chris Lattner
e56d946a38 Fix the CBE's handling of instructions whose result is an i1. Previously,
we did not truncate the value down to i1 with (x&1).  This caused a problem
when the computation of x was nontrivial, for example, "add i1 1, 1" would 
return 2 instead of 0.

This makes the testcase compile into:

...
  llvm_cbe_t = (((llvm_cbe_r == 0u) + (llvm_cbe_r == 0u))&1);
  llvm_cbe_u = (((unsigned int )(bool )llvm_cbe_t));
...

instead of:

...
  llvm_cbe_t = ((llvm_cbe_r == 0u) + (llvm_cbe_r == 0u));
  llvm_cbe_u = (((unsigned int )(bool )llvm_cbe_t));
...

This fixes a miscompilation of mediabench/adpcm/rawdaudio/rawdaudio and
403.gcc with the CBE, regressions from LLVM 2.2. Tanya, please pull 
this into the release branch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51813 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 09:23:55 +00:00
Dan Gohman
e4c67cdab4 Teach the DAGISelEmitter to not compute the variable_ops operand
index for the input pattern in terms of the output pattern. Instead
keep track of how many fixed operands the input pattern actually
has, and have the input matching code pass the output-emitting
function that index value. This simplifies the code, disentangles
variables_ops from the support for predication operations, and
makes variable_ops more robust.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 02:11:25 +00:00
Evan Cheng
89df08c8a0 Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 22:39:18 +00:00
Bill Wendling
37a6134165 Add the "AsCheapAsAMove" flag to some 64-bit xor instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:47:04 +00:00
Dan Gohman
b4106170dd Add patterns for CALL32m and CALL64m. They aren't matched in most
cases due to an isel deficiency already noted in
lib/Target/X86/README.txt, but they can be matched in this fold-call.ll
testcase, for example.

This is interesting mainly because it exposes a tricky tblgen bug;
tblgen was incorrectly computing the starting index for variable_ops
in the case of a complex pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 21:50:34 +00:00
Bill Wendling
eecfa369eb Remove more iostream header includes. Needed to implement a "FlushStream"
function to flush a specified std::ostream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51705 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 21:46:33 +00:00
Dan Gohman
d35121ad00 Fix a tblgen problem handling variable_ops in tblgen instruction
definitions. This adds a new construct, "discard", for indicating
that a named node in the input matching pattern is to be discarded,
instead of corresponding to a node in the output pattern. This
allows tblgen to know where the arguments for the varaible_ops are
supposed to begin.

This fixes "rdar://5791600", whatever that is ;-).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 19:57:41 +00:00
Dan Gohman
21323f3a82 Expand small memmovs using inline code. Set the X86 threshold for expanding
memmove to a more plausible value, now that it's actually being used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 19:42:22 +00:00
Evan Cheng
f26ffe987c Implement vector shift up / down and insert zero with ps{rl}lq / ps{rl}ldq.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 08:22:04 +00:00
Bill Wendling
75cf88f1fe XOR?RI instructions aren't as cheap as moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51664 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 03:46:36 +00:00
Bill Wendling
bd0879d7d9 Implement "AsCheapAsAMove" for some obviously cheap instructions: xor and the
like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51662 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 01:02:09 +00:00
Bill Wendling
8370d38ade Add a flag to indicate that an instruction is as cheap (or cheaper) than a move
instruction to execute. This can be used for transformations (like two-address
conversion) to remat an instruction instead of generating a "move"
instruction. The idea is to decrease the live ranges and register pressure and
all that jazz.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 22:54:52 +00:00
Nate Begeman
73e4d594e7 Update some comments noticed in a recent checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51644 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 16:31:36 +00:00
Chris Lattner
e5ab3355ba Add chain inputs for loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 04:25:57 +00:00
Chris Lattner
3f1891ca6d Fix CodeGen/Generic/2005-10-21-longlonggtu.ll on ia64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 04:14:30 +00:00
Chris Lattner
b0349bfe72 loads should get chains. THis helps but does not solve CodeGen/Generic/2003-05-27-phifcmpd.ll
on ia64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51633 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 04:06:52 +00:00
Chris Lattner
9b07d3d378 Fix 2006-04-28-Sign-extend-bool.ll for ia64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51632 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 04:00:06 +00:00
Chris Lattner
aec8d823fb reindent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 03:59:32 +00:00
Dan Gohman
c2ecdc5a26 Fix the encoding for two more "rm" instructions that were using MRMSrcReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 01:50:19 +00:00
Mon P Wang
bfbbd4d221 Fixed X86 encoding error CVTPS2PD and CVTPD2PS when the source operand
is a memory location


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 00:42:27 +00:00
Nate Begeman
f7333bf4a2 Don't attempt to create VZEXT_LOAD out of an extload. This an issue where the
code generator would do something like this:

f64 = load f32 <anyext>, f32mem
v2f64 = insertelt undef, %0, 0
v2f64 = insertelt %1, 0.0, 1

into 

v2f64 = vzext_load f32mem

which on x86 is movsd, when you really wanted a cvtss2sd/movsd pair.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51624 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 00:24:25 +00:00
Duncan Sands
43e2a03530 Fix some constructs that gcc-4.4 warns about.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27 11:50:51 +00:00
Chris Lattner
e7a83dfac6 Add FreeBSD/PPC support, patch by Marcel Moolenaar!
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2008-05-24 04:58:48 +00:00
Evan Cheng
a31593901d Eliminate x86.sse2.punpckh.qdq and x86.sse2.punpckl.qdq.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51533 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-24 02:56:30 +00:00
Evan Cheng
e716bb1c59 Eliminate x86.sse2.movs.d, x86.sse2.shuf.pd, x86.sse2.unpckh.pd, and x86.sse2.unpckl.pd intrinsics. These will be lowered into shuffles.
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2008-05-24 02:14:05 +00:00
Duncan Sands
5ea38a6144 Tweak how ConstantFP80Ty constants are output
so that gcc doesn't warn about them.


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2008-05-24 01:00:52 +00:00
Dale Johannesen
247580b569 Put initialized const weak objects into correct
sections on ppc32 darwin.  g++.dg/abi/key2.C



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2008-05-24 00:10:20 +00:00
Evan Cheng
fe5b159ae2 This is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-24 00:10:13 +00:00
Evan Cheng
999dbe6bbc Remove x86.sse2.loadh.pd and x86.sse2.loadl.pd. These will be lowered into load and shuffle instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51522 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-24 00:07:29 +00:00
Dale Johannesen
80d7e26513 Add a missed CommonLinkage check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51503 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 21:33:27 +00:00
Evan Cheng
cd0baf21a1 Use movlps / movhps to modify low / high half of 16-byet memory location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51501 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 21:23:16 +00:00
Dan Gohman
a9e75631a7 Elaborate on the entry on integer vector multiplication by constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51491 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 18:05:39 +00:00
Evan Cheng
50f778deed Fix a duplicated pattern.
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2008-05-23 18:00:18 +00:00
Dan Gohman
0b924dcef8 Use PMULDQ for v2i64 multiplies when SSE4.1 is available. And add
load-folding table entries for PMULDQ and PMULLD.


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2008-05-23 17:49:40 +00:00
Evan Cheng
d4083d01d2 New entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51487 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 17:28:11 +00:00
Dan Gohman
17dab19226 Fix another isFirstClassType that now needs to be isSingleValueType.
This fixes recent CBE regressions.


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2008-05-23 16:57:00 +00:00
Chris Lattner
3adaa93700 we compile multiply-by-constant into horrible code. Doesn't sse4 have some
instruction for doing this?


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2008-05-23 04:29:53 +00:00
Evan Cheng
b1938263c7 Bug: rcpps can only folds a load if the address is 16-byte aligned. Fixed many 'ps' load folding patterns in X86InstrSSE.td which are missing the proper alignment checks.
Also fixed some 80 col. violations.


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2008-05-23 00:37:07 +00:00
Dale Johannesen
bbcb34cafb Put const weak stuff in appropriate section on Darwin.
g++.dg/abi/key2.C



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2008-05-23 00:16:59 +00:00
Evan Cheng
5bbaf01b84 X86CodeEmitter should not set PIC style to None at initialization time. This will break codegen if relocation model is changed to PIC_ later.
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2008-05-22 23:55:24 +00:00
Evan Cheng
c36c0ab44b Add missing patterns.
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2008-05-22 18:56:56 +00:00
Chris Lattner
687a4cb295 fix an off-by-one error in my previous patch, don't treat the callee as a incoming arg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22 06:29:38 +00:00
Chris Lattner
f6a048c3a8 Add support for multiple-return values in inline asm. This should
get inline asm working as well as it did previously with the CBE
with the new MRV support for inline asm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22 06:19:37 +00:00
Evan Cheng
8e8de684c7 movsd and movq do not require 16-byte alignment. This fixes vec_set-5.ll on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51327 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 18:24:47 +00:00
Evan Cheng
a125e62117 runOnMachineFunction should set IsPIC because relocation model may have been changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 01:56:59 +00:00
Dale Johannesen
c215b3ef5d Handle quoted names when constructing $stub's,
$non_lazy_ptr's and $lazy_ptr's.



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2008-05-19 21:38:18 +00:00
Chris Lattner
b5783106c4 trip count computation deficiency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51222 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-17 15:37:38 +00:00
Dale Johannesen
ea7dd40714 Record weak external linkage in a case where we were
missing it. gcc.dg/darwin-weakimport-2.c.
Handle common and weak differently for darwin ppc32.



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2008-05-16 20:09:25 +00:00
Gabor Greif
7cbd8a3e92 API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 19:29:10 +00:00
Dale Johannesen
f88c81e332 Treat common as distinct from weak global on Darwin x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 00:52:06 +00:00
Evan Cheng
0ef8de30fa Fix typos and comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15 22:13:02 +00:00
Evan Cheng
f0df03134e Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15 08:39:06 +00:00
Evan Cheng
bb60674191 Silence warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:33:21 +00:00
Dale Johannesen
aafce77b17 Add CommonLinkage; currently tentative definitions
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.



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2008-05-14 20:12:51 +00:00
Sanjiv Gupta
2010b3eea6 Detabification. Fixed indentation and spacing.
Changed cout to DOUT, and TODOs to FIXMEs.
Other changes as per coding conventions.


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2008-05-14 11:31:39 +00:00
Nicolas Geoffray
9474ede38b Fix typo in ParameterAttribute fields usage. Add an include
to make the Cpp backend output compilable.



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2008-05-14 07:52:03 +00:00
Sanjiv Gupta
2d4e7f732a Fixed the file description header at the top to remove the developer name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 06:50:01 +00:00
Evan Cheng
6bf877035e Doh. Alignment is in bytes, not in bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51092 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 02:49:43 +00:00
Dan Gohman
c9f5f3f64f Change target-specific classes to use more precise static types.
This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.


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2008-05-14 01:58:56 +00:00
Chris Lattner
3b34e1e9e8 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 19:56:20 +00:00
Evan Cheng
b656443366 - Fix the pasto in the fix for a previous pasto.
- Incorporate Chris' comment suggestion.


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2008-05-13 18:59:59 +00:00
Chris Lattner
7171c836a9 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51060 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 18:48:54 +00:00
Nate Begeman
32097bdbf6 Fix one more encoding bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 17:52:09 +00:00
Evan Cheng
11b6793ede - Don't treat anyext 16-bit load as a 32-bit load if it's volatile.
- Correct a pasto.


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2008-05-13 16:45:56 +00:00
Sanjiv Gupta
0e68771536 Adding files for Microchip's PIC16 target.
A brief description about PIC16:
===============================
PIC16 is an 8-bit microcontroller with only one 8-bit register which is the 
accumulator. All arithmetic/load/store operations are 8-bit only.
The architecture has two address spaces: program and data. The program memory 
is divided into 2K pages and the data memory is divided into banks of 128 byte, with only 80 usable bytes, resulting in an non-contiguous data memory. 

It supports direct data memory access (by specifying the address as part of the instruction) and indirect data and program memory access (in an unorthodox fashion which utilize a 16 bit pointer register). 

Two classes of registers exist: (8-bit class which is only one
accumulator) (16-bit class, which contains one or more 16 bit
pointer(s))



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2008-05-13 09:02:57 +00:00
Evan Cheng
77f0b7a50a Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax


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2008-05-13 08:35:03 +00:00
Nate Begeman
c9bdb00683 Fix and encoding error in the psrad xmm, imm8 instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 01:47:52 +00:00
Evan Cheng
fa7fd33a26 On x86, it's safe to treat i32 load anyext as a normal i32 load. Ditto for i8 anyext load to i16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 00:54:02 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.


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2008-05-13 00:00:25 +00:00
Nate Begeman
0d1704b955 Teach Legalize how to scalarize VSETCC
Teach X86 a few more vsetcc patterns.  Custom lowering for unsupported ones is next.


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2008-05-12 23:09:43 +00:00
Evan Cheng
9bfa03c6fd Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 23:04:07 +00:00
Bill Wendling
9f8fea3531 Constify the machine instruction passed into the
"is{Trivially,Really}ReMaterializable" methods.


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2008-05-12 20:54:26 +00:00
Nate Begeman
c2616e43fd Initial X86 codegen support for VSETCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 20:34:32 +00:00
Dan Gohman
9499b7186b Fix a copy+paste bug; pseudo-instructions shouldn't have
encoding information.


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2008-05-12 20:22:45 +00:00
Evan Cheng
ad4196b44a Refactor isConsecutiveLoad from X86 to TargetLowering so DAG combiner can make use of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50991 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 19:56:52 +00:00
Nate Begeman
b43e9c1965 Add support for vicmp/vfcmp codegen, more legalize support coming.
This is necessary to unbreak the build.


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2008-05-12 19:40:03 +00:00
Dan Gohman
2ce3898e41 Fix a compile error on compilers that still want a return value
in a non-void function that calls abort.


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2008-05-12 16:17:19 +00:00
Anton Korobeynikov
64d69102a1 Add note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50959 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-11 14:33:15 +00:00
Evan Cheng
50d9e7289b When transforming a vector_shuffle to a load, the base address must not be an undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 06:46:49 +00:00
Dan Gohman
9018e836fe For now, abort when an ISD::VAARG is encountered on x86-64, rather
than silently generate invalid code.

llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.


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2008-05-10 01:26:14 +00:00
Evan Cheng
b70ea0bd03 Some clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50929 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 00:59:18 +00:00
Evan Cheng
25210da757 If movl top bits are undef, let it be selected to movlps, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50928 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 00:58:41 +00:00
Evan Cheng
23573e5be6 Add a pattern to do move the low element of a v4f32 and zero extend the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 23:37:55 +00:00
Evan Cheng
d880b97257 Handle a few more cases of folding load i64 into xmm and zero top bits.
Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.


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2008-05-09 21:53:03 +00:00
Evan Cheng
fd17f42bab Use movq to move low half of XMM register and zero-extend the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50874 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 22:35:02 +00:00
Evan Cheng
7e2ff77ef0 Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 00:57:18 +00:00
Duncan Sands
671fa97a4b Output correct exception handling and frame info
on x86-64 linux.  This causes no regressions on
32 bit linux and 32 bit ppc.  More tests pass
on 64 bit ppc with no regressions.  I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet.  But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch.  Thanks to
Dale for testing.  The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.


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2008-05-07 19:11:09 +00:00
Chris Lattner
3bf6accfea Match things like 'armv5tejl-unknown-linux-gnu' for PR2290
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50698 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 02:29:28 +00:00
Dan Gohman
4a3f6c8882 Make several variable declarations static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 01:53:16 +00:00
Chris Lattner
88c1baa50c add a micro optzn.
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2008-05-05 23:19:45 +00:00
Mon P Wang
ab3e747c64 Improved generated code for atomic operators
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 22:56:23 +00:00
Evan Cheng
71f489d728 Code clean up. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50675 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 22:12:23 +00:00
Mon P Wang
63307c335a Added addition atomic instrinsics and, or, xor, min, and max.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 19:05:59 +00:00
Dan Gohman
94bbdc8c25 Fix IsLinux being uninitialized on non-Linux targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 18:43:07 +00:00
Anton Korobeynikov
aa57a7f7a1 Fix 80col violation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 17:08:59 +00:00
Dan Gohman
600bf16cf7 Use a dedicated IsLinux flag instead of an ELFLinux TargetType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50649 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 16:11:31 +00:00
Dan Gohman
a779a9899a Add AsmPrinter support for emitting a directive to declare that
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 00:28:39 +00:00
Anton Korobeynikov
6625eff8ec Add General Dynamic TLS model for X86-64. Some parts looks really ugly (look for tlsaddr pattern),
but should work. Work is in progress, more models will follow


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 21:36:32 +00:00
Evan Cheng
5759f97f50 Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 09:15:50 +00:00
Evan Cheng
22b942aa4d Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 00:52:09 +00:00
Evan Cheng
082f1161b1 Undo r50574. We are already ensuring the folded load address is 16-byte aligned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 17:01:01 +00:00
Evan Cheng
b609339a5c 80 column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 07:53:32 +00:00
Evan Cheng
ef6a512489 Not safe folding a load + FsXORPSrr into FsXORPSrm. It's loading a FR64 value but the load folding variant expects a 16-byte aligned address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 07:50:58 +00:00
Arnold Schwaighofer
30e62c098b Tail call optimization improvements:
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 09:16:33 +00:00
Scott Michel
203b2d6eed Bug fixes and updates for CellSPU, syncing up with trunk. Most notable
fixes are target-specific lowering of frame indices, fix constants generated
for the FSMBI instruction, and fixing SPUTargetLowering::computeMaskedBitsFor-
TargetNode().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:30:08 +00:00
Anton Korobeynikov
966e7997b5 Don't do stupid things: doInitialization(Module&) is not applicable to ModulePass :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 18:16:22 +00:00
Dan Gohman
1f13c686df Fix the SVOffset values for loads and stores produced by
memcpy/memset expansion. It was a bug for the SVOffset value
to be used in the actual address calculations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:15:20 +00:00
Anton Korobeynikov
2810d675f8 Fix FP return for Win64 ABI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 07:40:07 +00:00
Anton Korobeynikov
998a5bcc80 Properly lower vararg's FORMAL_ARGUMENTS node on win64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:15:03 +00:00
Anton Korobeynikov
7255193b4f Handle fp80 for win64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50324 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 22:54:09 +00:00
Chris Lattner
5e764233f3 A few inline asm cleanups:
- Make targetlowering.h fit in 80 cols.
  - Make LowerAsmOperandForConstraint const.
  - Make lowerXConstraint -> LowerXConstraint
  - Make LowerXConstraint return a const char* instead of taking a string byref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 23:02:14 +00:00
Chris Lattner
2ba1c06d48 no need to implement this method and just have it call
the default impl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 22:59:59 +00:00
Evan Cheng
44c0fd17e1 Extract the lower 64-bit if a MMX value is passed in a XMM register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50292 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:13:28 +00:00
Evan Cheng
082948df9b Fix illegal MMX_MOVDQ2Qrr pattern. vector_extract result must be a scalar value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:12:46 +00:00
Evan Cheng
10e864276b Special handling for MMX values being passed in either GPR64 or lower 64-bits of XMM registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 19:11:04 +00:00
Evan Cheng
80f5404e18 Fix MMX_MOVQ2DQrr pattern. It's illegal to do a bitconvert from a smaller type to a larger one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:19:54 +00:00
Chris Lattner
7c400dcb03 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:25:00 +00:00
Evan Cheng
682f81032f 80 col violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:21:40 +00:00
Evan Cheng
419ace9bda Not checking for intrinsics which do not have a chain operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50260 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:55:28 +00:00
Evan Cheng
cdda25d22b - Switch from std::set to SmallPtrSet.
- Add comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:22:20 +00:00
Evan Cheng
ee472b1081 MMX argument passing fixes:
On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2].                                                                                                                                      
On Darwin / Linux x86-32, v1i64 values are passed in memory.                                                                                                                                                    
On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7].                                                                                                                                     
On Darwin x86-64, v1i64 values are passed in 64-bit GPRs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 07:56:45 +00:00
Chris Lattner
25453ea49e Loosen up an assertion to allow intrinsics. I really have no
idea what this code (findNonImmUse) does, so I'm only guessing 
that this is the right thing.  It would be really really nice
if this had comments and perhaps switched to SmallPtrSet
(hint hint) :)

This fixes rdar://5886601, a crash on gcc.target/i386/sse4_1-pblendw.c


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 05:13:01 +00:00
Evan Cheng
2749c72f30 Fix bug in x86 memcpy / memset lowering. If there are trailing bytes not handled by rep instructions, a new memcpy / memset is introduced for them. However, since source / destination addresses are already adjusted, their offsets should be zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 00:26:43 +00:00
Dan Gohman
3c02aca238 Make these variables static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 23:15:23 +00:00
Anton Korobeynikov
0d9e02cfd6 Drop dead includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:44:03 +00:00
Anton Korobeynikov
8d3e74ed49 Adjust option names for C++ backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:37:03 +00:00
Anton Korobeynikov
5027652b8a First step of implementing PR1538: move llvm2cpp logic to new 'target'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:29:24 +00:00
Dan Gohman
7661279ae0 Initial CBE support for multiple return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 21:49:29 +00:00
Anton Korobeynikov
941ff5818b Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:24:25 +00:00
Anton Korobeynikov
dc28bd43d3 Only allow increase of max alignment value
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50168 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:50 +00:00
Anton Korobeynikov
d52bdaff0c Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:30 +00:00
Anton Korobeynikov
856914fe00 Add X86 Maximal Stack Alignment Calculator Pass before RA
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:05 +00:00
Anton Korobeynikov
2c430cbf03 Do proper book-keeping of offsets and prologue/epilogue code for stack realignment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:27 +00:00
Anton Korobeynikov
8e91ec5e29 If stack realignment is used - incoming args will use EBP as base register and locals - ESP
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:02 +00:00
Anton Korobeynikov
b51dce3013 Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:20:17 +00:00
Anton Korobeynikov
d1c133a051 Cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:19:23 +00:00
Anton Korobeynikov
82751e3eda Simplify
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:36 +00:00
Anton Korobeynikov
45709ae09b Make stack alignment options global for all targets
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:10 +00:00
Anton Korobeynikov
cfcd20e7be Provide option for enabling-disabling stack realignment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:17:11 +00:00
Anton Korobeynikov
35410a493b Disable stack realignment for functions with dynamic-sized alloca's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50155 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:43 +00:00
Anton Korobeynikov
890fe888be Provide ABI-correct stack alignment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:16 +00:00
Anton Korobeynikov
9bbbea568c Provide convenient helpers for some operations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50153 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:48 +00:00
Anton Korobeynikov
e201190eb7 Whitespace cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50152 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:11 +00:00
Dan Gohman
61a9213440 Implement an x86-64 ABI detail of passing structs by hidden first
argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.

Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 23:59:07 +00:00
Dan Gohman
0416b0a26d Fix the encoding of the MMX movd that moves from MMX to 64-bit GPR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 19:52:29 +00:00
Chris Lattner
7d717a0b70 Add an ugly note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 04:46:30 +00:00
Nicolas Geoffray
546e36a2c1 Don't forget to update the current operand when getting the size of an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 23:36:47 +00:00
Chris Lattner
bd381a777b A better fix for my previous patch, MOVZQI2PQIrr just requires SSE2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49986 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 05:52:46 +00:00
Chris Lattner
02a260aa11 Switch to using Simplified ConstantFP::get API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 00:41:09 +00:00
Evan Cheng
8608f2eff2 64-bit atomic operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49949 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:30:38 +00:00
Evan Cheng
94d7b02c5a Also LXCHG64 -> XCHG64rm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:05:42 +00:00
Evan Cheng
54fc97dcdc PPC32 atomic operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 01:30:48 +00:00
Evan Cheng
bb6939dcff xchg which references a memory operand does not need to lock prefix. Atomicity is guaranteed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49946 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 01:20:30 +00:00
Dan Gohman
28269139ee Fix the handling of va_copy on x86-64. As of llvm-gcc r49920
llvm-gcc is now lowering va_copy on x86-64, so this completes
the fix for PR2230.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:55:41 +00:00
Evan Cheng
7e03280b53 - Fix atomic operation JIT encoding.
- Remove unused instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:55:36 +00:00
Evan Cheng
3f73beaeb2 Also support Intel asm syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 23:35:10 +00:00
Evan Cheng
9d1a81a23c Fix assembly code for atomic operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49869 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 21:26:35 +00:00
Evan Cheng
03eb38848c Don't forget about sub-register indices when rematting instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49830 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 23:44:44 +00:00
Dale Johannesen
5e8fb81353 Unbreak build on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 22:24:33 +00:00
Nicolas Geoffray
51cc3c13ea Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49814 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:46:05 +00:00
Nicolas Geoffray
52e724ad7e Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:10:13 +00:00
Evan Cheng
dc00858e11 Initialize X863DNowLevel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 19:03:02 +00:00
Roman Levenstein
9cac5259fe Ongoing work on improving the instruction selection infrastructure:
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49795 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 16:15:27 +00:00
Dan Gohman
171c11ec93 Add support for the form of the SSE41 extractps instruction that
puts its result in a 32-bit GPR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 02:32:24 +00:00
Dan Gohman
bcda285fcc Recreate the size SDNode instead of reusing the old one in the x86
memcpy lowering code; this ensures that the size node has the desired
result type. This fixes a regression from r49572 with @llvm.memcpy.i64
on x86-32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 01:32:32 +00:00
Dan Gohman
302cd54299 Remove X86_64SRet; it isn't used anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 00:24:30 +00:00
Dan Gohman
a630f4ed91 Add movd instructions to move from MMX registers
to 64-bit GPR registers on x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49757 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 23:55:07 +00:00
Nicolas Geoffray
6ccbbd8990 Change Divided flag to Split, as suggested by Evan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 08:08:50 +00:00
Dan Gohman
0a9371de6d Remove unnecessary <sstream> includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49681 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14 20:40:47 +00:00
Dan Gohman
29e4bdbf27 Fix const-correctness issues with the SrcValue handling in the
memory intrinsic expansion code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49666 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14 17:55:48 +00:00
Dale Johannesen
3541af73b6 Reverse sense of unwind-tables option. This means
stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14 17:54:17 +00:00
Nicolas Geoffray
c0cb28fd3a Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49611 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-13 13:40:22 +00:00
Anton Korobeynikov
78c80fdbdd Provide option for stack alignment override
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49593 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 22:12:22 +00:00
Arnold Schwaighofer
4b5324ad2c This patch corrects the handling of byval arguments for tailcall
optimized x86-64 (and x86) calls so that they work (... at least for
my test cases).

Should fix the following problems:

Problem 1: When i introduced the optimized handling of arguments for
tail called functions (using a sequence of copyto/copyfrom virtual
registers instead of always lowering to top of the stack) i did not
handle byval arguments correctly e.g they did not work at all :).

Problem 2: On x86-64 after the arguments of the tail called function
are moved to their registers (which include ESI/RSI etc), tail call
optimization performs byval lowering which causes xSI,xDI, xCX
registers to be overwritten. This is handled in this patch by moving
the arguments to virtual registers first and after the byval lowering
the arguments are moved from those virtual registers back to
RSI/RDI/RCX.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49584 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 18:11:06 +00:00
Dan Gohman
707e018423 Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 04:36:06 +00:00
Dan Gohman
6f836adafe Fix a bug that prevented x86-64 from using rep.movsq for
8-byte-aligned data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 02:35:39 +00:00
Nate Begeman
6795ebb663 80 col fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 00:47:57 +00:00
Chris Lattner
2189c17443 add a note, this is actually not too bad to implement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 05:54:50 +00:00
Chris Lattner
a825d75f1d move the x86-32 part of PR2108 here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 05:37:47 +00:00
Chris Lattner
db66750753 Fix the x86-64 side of PR2108 by adding a v2f64 version of
MOVZQI2PQIrr.  This would be better handled as a dag combine 
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely.  Thoughts welcome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 05:13:43 +00:00
Dan Gohman
7d8143f0ef Make isVectorClearMaskLegal's operand list const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 20:09:42 +00:00
Dan Gohman
c2ffd4b1cb Add XMM1 as a second return value register for f32 and f64 on x86-64. This
is needed for the x86-64-ABI handling of structs that contain floating-point
members that are returned by value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 17:54:37 +00:00
Dan Gohman
719e64e8c1 Add DX as a second return value register for i16 on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49440 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 17:53:38 +00:00
Dale Johannesen
e8277dc7d6 Rename -disable-required-unwind-tables to unwind-tables-optional.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 18:07:49 +00:00
Dale Johannesen
f2247cfb38 Handle the situation in 2008-01-25-EmptyFunction.ll
correctly when unwind info is being generated.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49366 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 00:37:56 +00:00
Dale Johannesen
4e1b79459f Implement new llc flag -disable-required-unwind-tables.
Corresponds to -fno-unwind-tables (usually default in gcc).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 00:10:24 +00:00
Dan Gohman
36b5c1338a Rename MemOperand to MachineMemOperand. This was suggested by
review feedback from Chris quite a while ago. No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 19:35:22 +00:00
Roman Levenstein
dc1adac582 Re-commit of the r48822, where the infinite looping problem discovered
by Dan Gohman is fixed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 10:06:32 +00:00
Gabor Greif
051a950000 API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 20:25:17 +00:00
Evan Cheng
0c0f83ff5d Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-05 00:30:36 +00:00
Torok Edwin
3e3dc57d3f strdup needs <cstring>. This fixes a build error with g++-4.3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49218 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04 16:08:00 +00:00
Evan Cheng
43b7ca15a3 Re-enable SSE4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 08:53:29 +00:00
Evan Cheng
ab394bdcc0 Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 08:53:17 +00:00
Evan Cheng
90ce87b5bd Cosmetic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 07:45:18 +00:00
Evan Cheng
b4e56d4a2b Temporarily disabling SSE4 until we fix the encoding issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 04:49:54 +00:00
Evan Cheng
6397c64441 Backing out 48222 temporarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 03:13:16 +00:00
Dan Gohman
271515a46d Suppress the 128-bit integer typedef on 32-bit targets, because
it causes compile errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 23:52:49 +00:00
Dan Gohman
d761480fe4 Partial CBackend support for 128-bit integers. This is needed
now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49109 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 19:40:14 +00:00
Dale Johannesen
e00406281d Cosmetic changes per EH patch review feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 17:04:45 +00:00
Anton Korobeynikov
67073f1cbd Add new CC lowering rule: provide a list of registers, which can be 'shadowed',
when some another register is used for argument passing.
Currently is used on Win64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 05:23:57 +00:00
Dale Johannesen
1532f3ddd7 Recommitting EH patch; this should answer most of the
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 00:25:04 +00:00
Evan Cheng
ffe2eb0120 ReMat of load from stub in pic mode extends the life of pic base. Currently spiller doesn't do a good job of estimating the impact. Disable for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49059 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 23:26:12 +00:00
Evan Cheng
247faffb32 Remove unnecessary and non-deterministic checking code. Re-enable remat of load from gv stub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 21:38:20 +00:00
Dan Gohman
38c92263eb Don't use __bzero for memset if the second argument isn't zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49050 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:56:18 +00:00
Dan Gohman
68d599df37 Speculatively micro-optimize memory-zeroing calls on Darwin 10.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49048 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:38:36 +00:00
Dale Johannesen
b6d5b14390 Revert 49006 for the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:00:57 +00:00
Evan Cheng
78b6ce3981 Disabling remat of load from gv stub (temporarily) again to fix llvmgcc bootstrap miscompare.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 07:33:13 +00:00
Evan Cheng
110cf48752 Unbreak ARM / Thumb soft FP support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49012 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 01:50:16 +00:00
Dale Johannesen
2ffbcaccd1 Accept 'y' constraint (MMX) in inline asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 00:57:48 +00:00
Dale Johannesen
1544e4713b Emit exception handling info for functions which are
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.

llvm-gcc generates nounwind in the right places; other FEs
will need to do so also.  Given such a FE, -enable-eh should
no longer be needed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:40:23 +00:00
Evan Cheng
427f4c106a It's not safe to fold a load from GV stub or constantpool into a two-address use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49002 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:19:51 +00:00
Evan Cheng
ca1267c02b Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 20:40:39 +00:00