a501640ffa
Added support for vector widening.
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llvm-svn: 61209
2008-12-18 20:03:17 +00:00
015a7f57b2
Fix expansion of vsetcc to set the high bit for true instead of 1.
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llvm-svn: 61129
2008-12-17 08:49:47 +00:00
f312dc7729
Reapply r60997, this time without forgetting that
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target constants are allowed to have an illegal
type.
llvm-svn: 61006
2008-12-14 09:43:15 +00:00
e5af6f1990
Temporarily revert r60997. It was causing this failure:
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Running /Users/void/llvm/llvm.src/test/CodeGen/Generic/dg.exp ...
FAIL: /Users/void/llvm/llvm.src/test/CodeGen/Generic/asm-large-immediate.ll
Failed with exit(1) at line 1
while running: llvm-as < /Users/void/llvm/llvm.src/test/CodeGen/Generic/asm-large-immediate.ll | llc | /usr/bin/grep 68719476738
Assertion failed: ((TypesNeedLegalizing || getTypeAction(VT) == Legal) && "Illegal type introduced after type legalization?"), function HandleOp, file /Users/void/llvm/llvm.src/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp, line 493.
0 llc 0x0085392e char const* std::find<char const*, char>(char const*, char const*, char const&) + 98
1 llc 0x00853e63 llvm::sys::PrintStackTraceOnErrorSignal() + 593
2 libSystem.B.dylib 0x96cac09b _sigtramp + 43
3 libSystem.B.dylib 0xffffffff _sigtramp + 1765097359
4 libSystem.B.dylib 0x96d24ec2 raise + 26
5 libSystem.B.dylib 0x96d3447f abort + 73
6 libSystem.B.dylib 0x96d26063 __assert_rtn + 101
7 llc 0x004f9018 llvm::cast_retty<llvm::SubprogramDesc, llvm::DebugInfoDesc*>::ret_type llvm::cast<llvm::Sub
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llvm-svn: 61001
2008-12-13 23:53:00 +00:00
24092271cc
LegalizeDAG is not supposed to introduce illegal
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types into the DAG if they were not already there.
Check this with an assertion.
llvm-svn: 60997
2008-12-13 22:33:38 +00:00
f95bd2078d
Added basic support for expanding VSETCC
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llvm-svn: 60974
2008-12-13 08:15:14 +00:00
b6f09933c0
On big-endian machines it is wrong to do a full
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width register load followed by a truncating
store for the copy, since the load will not place
the value in the lower bits. Probably partial
loads/stores can never happen here, but fix it
anyway.
llvm-svn: 60972
2008-12-13 07:18:38 +00:00
8f352fe100
When expanding unaligned loads and stores do not make
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use of illegal integer types: instead, use a stack slot
and copying via integer registers. The existing code
is still used if the bitconvert is to a legal integer
type.
This fires on the PPC testcases 2007-09-08-unaligned.ll
and vec_misaligned.ll. It looks like equivalent code
is generated with these changes, just permuted, but
it's hard to tell.
With these changes, nothing in LegalizeDAG produces
illegal integer types anymore. This is a prerequisite
for removing the LegalizeDAG type legalization code.
While there I noticed that the existing code doesn't
handle trunc store of f64 to f32: it turns this into
an i64 store, which represents a 4 byte stack smash.
I added a FIXME about this. Hopefully someone more
motivated than I am will take care of it.
llvm-svn: 60964
2008-12-12 21:47:02 +00:00
3270a1dec3
Fix add/sub expansion: don't create ADD / SUB with two results (seems like everyone is doing this these days :-). Patch by Daniel M Gessel!
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llvm-svn: 60958
2008-12-12 18:49:09 +00:00
e4bcb8e2dd
When using a 4 byte jump table on a 64 bit machine,
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do an extending load of the 4 bytes rather than a
potentially illegal (type) i32 load followed by a
sign extend.
llvm-svn: 60945
2008-12-12 08:13:38 +00:00
9c2d26d208
Added support for SELECT v8i8 v4i16 for X86 (MMX)
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Added support for TRUNC v8i16 to v8i8 for X86 (MMX)
llvm-svn: 60916
2008-12-12 01:25:51 +00:00
c68b3c4fc1
Whitespace clean up (tabs with spaces)
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llvm-svn: 60866
2008-12-11 00:44:22 +00:00
f482f379ef
Whitespace changes.
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llvm-svn: 60826
2008-12-10 02:01:32 +00:00
db8ec2d75a
Add sub/mul overflow intrinsics. This currently doesn't have a
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target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!
llvm-svn: 60800
2008-12-09 22:08:41 +00:00
8a5366332f
In LegalizeOp, don't change the result type of CONVERT_RNDSAT when promoting
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one of its operand.
llvm-svn: 60749
2008-12-09 07:27:39 +00:00
4dd832d241
Fix getNode to allow a vector for the shift amount for shifts of vectors.
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Fix the shift amount when unrolling a vector shift into scalar shifts.
Fix problem in getShuffleScalarElt where it assumes that the input of
a bit convert must be a vector.
llvm-svn: 60740
2008-12-09 05:46:39 +00:00
9b0b28e021
Non-functional change: make custom lowering for truncate stylistically
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consistent with the way it's generally done in other places.
llvm-svn: 60439
2008-12-02 19:55:08 +00:00
318ccb0e62
make it possible to custom lower TRUNCATE (needed for the CellSPU target)
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llvm-svn: 60409
2008-12-02 12:12:25 +00:00
6e1c6ad127
Removed some unnecessary code in widening.
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llvm-svn: 60406
2008-12-02 07:35:08 +00:00
3d960941b1
There are no longer any places that require a
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MERGE_VALUES node with only one operand, so get
rid of special code that only existed to handle
that possibility.
llvm-svn: 60349
2008-12-01 11:41:29 +00:00
6ed40141f7
Change the interface to the type legalization method
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ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.
llvm-svn: 60348
2008-12-01 11:39:25 +00:00
7ae1a84465
Removing redundant semicolons. No functionality change.
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llvm-svn: 60149
2008-11-27 05:58:04 +00:00
80810f8c6b
Allow custom lowering of ADDE/ADDC/SUBE/SUBC operations.
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llvm-svn: 60102
2008-11-26 11:19:00 +00:00
b4ff5322c1
A simplification for checking whether the signs of the operands and sum differ. Thanks, Duncan.
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llvm-svn: 60043
2008-11-25 19:40:17 +00:00
bf592fccd4
Now with the correct type for the 0.
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llvm-svn: 60016
2008-11-25 08:19:22 +00:00
d06c625b95
Get rid of unused variable.
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llvm-svn: 60015
2008-11-25 08:13:20 +00:00
4498b47677
Hacker's Delight says, "Signed integer overflow of addition occurs if and only
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if the operands have the same sign and the sum has sign opposite to that of the
operands."
llvm-svn: 60014
2008-11-25 08:12:19 +00:00
66835479d7
- Make lowering of "add with overflow" customizable by back-ends.
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- Mark "add with overflow" as having a custom lowering for X86. Give it a null
lowering representation for now.
llvm-svn: 59971
2008-11-24 19:21:46 +00:00
a8fd1f2c8e
Eliminate some unused variable compile time warnings.
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llvm-svn: 59952
2008-11-24 07:09:49 +00:00
2278f8f5e1
Add support for llvm.uadd.with.overflow.
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llvm-svn: 59926
2008-11-24 01:38:29 +00:00
be8e7f851c
- Move conversion of [SU]ADDO from DAG combiner into legalizer.
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- Add "promote integer type" stuff to the legalizer for these nodes.
llvm-svn: 59847
2008-11-22 00:22:52 +00:00
f414cbc1fd
Add missing widen operations, fixed widening for extracting a subvector,
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and when loading/storing a widen vector, make sure that they are loaded
and stored in consecutive order.
llvm-svn: 59357
2008-11-15 06:05:52 +00:00
58fb9135e2
Added CONVERT_RNDSAT (conversion with rounding and saturation) SDNode to
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support targets that support these conversions. Users should avoid using
this node as the current targets don't generating code for it.
llvm-svn: 59001
2008-11-10 20:54:11 +00:00
25f0106fd9
Added support for the following definition of shufflevector
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<result> = shufflevector <n x <ty>> <v1>, <n x <ty>> <v2>, <m x i32> <mask>
llvm-svn: 58964
2008-11-10 04:46:22 +00:00
160be0ffda
Make FP tests requiring two compares work on PPC (PR 642).
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This is Chris' patch from the PR, modified to realize that
SETUGT/SETULT occur legitimately with integers, plus
two fixes in LegalizeDAG to pass a valid result type into
LegalizeSetCC. The argument of TLI.getSetCCResultType is
ignored on PPC, but I think I'm following usage elsewhere.
llvm-svn: 58871
2008-11-07 22:54:33 +00:00
5ca2ec65bd
Fixed scalarizing an extract subvector and prevent an infinite loop
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when simplify a vector.
llvm-svn: 58820
2008-11-06 22:52:21 +00:00
9a8d60a7c0
Widening cleanup
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llvm-svn: 58796
2008-11-06 05:31:54 +00:00
db6b956585
80 columns
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llvm-svn: 58717
2008-11-04 20:52:49 +00:00
0207a3f897
Make VAARG work with x86 long double (which is
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10 bytes long, but is passed in 12/16 bytes).
llvm-svn: 58608
2008-11-03 11:51:11 +00:00
01b8a5a967
Add missing vsetcc expansion for widening
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llvm-svn: 58443
2008-10-30 18:21:52 +00:00
58c3794c27
Add initial support for vector widening. Logic is set to widen for X86.
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One will only see an effect if legalizetype is not active. Will move
support to LegalizeType soon.
llvm-svn: 58426
2008-10-30 08:01:45 +00:00
28929589e7
Add an SSE2 algorithm for uint64->f64 conversion.
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The same one Apple gcc uses, faster. Also gets the
extreme case in gcc.c-torture/execute/ieee/rbug.c
correct which we weren't before; this is not
sufficient to get the test to pass though, there
is another bug.
llvm-svn: 57926
2008-10-21 20:50:01 +00:00
97d3f6cfe3
Make the NaN test come second, heuristically assuming
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that NaNs are less common.
llvm-svn: 57871
2008-10-21 03:12:54 +00:00
3b0f5e4d61
- Add target lowering hooks that specify which setcc conditions are illegal,
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i.e. conditions that cannot be checked with a single instruction. For example,
SETONE and SETUEQ on x86.
- Teach legalizer to implement *illegal* setcc as a and / or of a number of
legal setcc nodes. For now, only implement FP conditions. e.g. SETONE is
implemented as SETO & SETNE, SETUEQ is SETUO | SETEQ.
- Move x86 target over.
llvm-svn: 57542
2008-10-15 02:05:31 +00:00
07d53b1d33
Rename LoadX to LoadExt.
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llvm-svn: 57526
2008-10-14 21:26:46 +00:00
da9b752883
FIX PR2794. Make sure SIGN_EXTEND_INREG nodes introduced by LegalizeSetCCOperands are leglized. Patch by Richard Pennington.
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llvm-svn: 57460
2008-10-13 18:46:18 +00:00
2753955fc0
Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as
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parameters instead of raw Constants. This prevents the constants from
being selected by the isel pass, fixing PR2735.
llvm-svn: 57385
2008-10-11 22:08:30 +00:00
54306fe499
Rename APFloat::convertToAPInt to bitcastToAPInt to
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make it clearer what the function does. No functional
change.
llvm-svn: 57325
2008-10-09 18:53:47 +00:00
21dca9cbb1
Use Dan's supperior check
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llvm-svn: 57255
2008-10-07 18:27:23 +00:00
d69bdaef64
No need for |=
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llvm-svn: 57249
2008-10-07 17:11:29 +00:00
Mon P Wang