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Commit Graph

460 Commits

Author SHA1 Message Date
Jeff Cohen
4bf914ebcc Fix VC++ build error.
llvm-svn: 26773
2006-03-15 02:51:05 +00:00
Chris Lattner
0339c2ab58 remove typo
llvm-svn: 26772
2006-03-15 02:05:38 +00:00
Chris Lattner
bbca65b845 Autogenerate a table of intrinsic names, so we can map from intrinsic ID to
LLVM intrinsic function name.

llvm-svn: 26771
2006-03-15 01:55:21 +00:00
Chris Lattner
697e830c63 Autogenerate code to map from GCC builtin to LLVM intrinsic.
llvm-svn: 26770
2006-03-15 01:33:26 +00:00
Reid Spencer
13a38e914a Add a newline at the end to avoid gcc warnings.
llvm-svn: 26749
2006-03-14 05:59:52 +00:00
Chris Lattner
ecc2db9f6d emit a mapping from LLVM intrinsic -> GCC builtins.
llvm-svn: 26736
2006-03-13 23:08:44 +00:00
Chris Lattner
5efaeff492 Verify that packed type operands have the right size and base type.
llvm-svn: 26735
2006-03-13 22:38:57 +00:00
Chris Lattner
8930c740ac fix pasto in generate assertion msg
llvm-svn: 26706
2006-03-11 00:20:47 +00:00
Chris Lattner
fa0acde009 generate side-effect info
llvm-svn: 26672
2006-03-09 22:37:52 +00:00
Chris Lattner
67900dea61 Parse mod/ref properties, autogen mod/ref information
llvm-svn: 26669
2006-03-09 22:30:49 +00:00
Chris Lattner
35d32c232a parse intrinsic types
autogenerate an intrinsic verifier

llvm-svn: 26666
2006-03-09 22:05:04 +00:00
Chris Lattner
f4bb4b3b11 autogenerate the function name recognizer
llvm-svn: 26663
2006-03-09 20:34:19 +00:00
Evan Cheng
df3c89dd52 Temporary hack to enable more (store (op (load ...))) folding. This makes
it possible when a TokenFactor is between the load and store. But is still
missing some cases due to ordering issue.

llvm-svn: 26638
2006-03-09 08:19:11 +00:00
Evan Cheng
71c62ae1f4 Don't generate silly matching code like this:
if (N1.getOpcode() == ISD::ADD &&
     ...)
   if (... &&
       (N1.getNumOperands() == 1 || !isNonImmUse(N1.Val, N10.Val))) &&
       ...)

TableGen knows N1 must have more than one operand.

llvm-svn: 26592
2006-03-07 08:31:27 +00:00
Chris Lattner
a31ef8a613 Silence a warning.
llvm-svn: 26508
2006-03-03 19:34:28 +00:00
Chris Lattner
d2068344fc Fix pasteo
llvm-svn: 26499
2006-03-03 06:13:41 +00:00
Chris Lattner
c8db4dd179 remove a bunch of long-dead testing code
llvm-svn: 26497
2006-03-03 02:34:28 +00:00
Chris Lattner
0b3c1c1fe2 initial implementation of intrinsic parsing
llvm-svn: 26495
2006-03-03 02:32:46 +00:00
Chris Lattner
b878804a5f remove out of date comment
llvm-svn: 26492
2006-03-03 02:04:07 +00:00
Chris Lattner
29d28e02b0 Add support for "-Ifoo" in addition to "-I foo"
llvm-svn: 26487
2006-03-03 01:53:40 +00:00
Chris Lattner
90eecf3882 Regenerate
llvm-svn: 26486
2006-03-03 01:47:37 +00:00
Chris Lattner
10c2fb116d add support for multiple include directories
llvm-svn: 26485
2006-03-03 01:47:14 +00:00
Evan Cheng
9539ab3ecc New vector type v2f32.
llvm-svn: 26437
2006-03-01 01:10:52 +00:00
Chris Lattner
1ffa8d3666 Select inline asm memory operands.
llvm-svn: 26349
2006-02-24 02:13:31 +00:00
Evan Cheng
6a9422ce1c Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit
packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).

llvm-svn: 26294
2006-02-20 22:34:53 +00:00
Jeff Cohen
6e4fbcce8f Fix bugs identified by VC++.
llvm-svn: 26287
2006-02-18 03:20:33 +00:00
Evan Cheng
110f651cba Bump up pattern cost if the resulting instruction is marked
usesCustomDAGSchedInserter.

llvm-svn: 26282
2006-02-18 02:33:09 +00:00
Chris Lattner
0974ebab7b Check the new form for bison output into CVS
llvm-svn: 26208
2006-02-15 07:24:01 +00:00
Chris Lattner
be28034223 Adjust to new form of handling lexer dependencies, this way shouldn't have
the problems the old way did.

llvm-svn: 26161
2006-02-14 05:13:13 +00:00
Evan Cheng
e8a0e56482 Call InsertISelMapEntry rather than map insertion operator to prevent overly
aggrssive inlining. This reduces Select_store frame size from 24k to 10k.

llvm-svn: 26095
2006-02-09 22:12:27 +00:00
Evan Cheng
fd9315eaaa Match getTargetNode() changes (now returns SDNode* instead of SDOperand).
llvm-svn: 26084
2006-02-09 07:16:09 +00:00
Evan Cheng
521e5a1bfe Change Select() from
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067
2006-02-09 00:37:58 +00:00
Evan Cheng
0ff5d88abd Hoist all SDOperand declarations within a Select_{opcode}() to the top level
to reduce stack memory usage. This is intended to work around the gcc bug.

llvm-svn: 26026
2006-02-07 00:37:41 +00:00
Chris Lattner
cf81cdcf95 Add support for modifier strings in machine instr descriptions. This allows
us to avoid creating lots of "Operand" types with different printers, instead
we can fold several together and use modifiers.  For example, we can now use:

${target:call} to say that the operand should be printed like a 'call' operand.

llvm-svn: 26024
2006-02-06 23:40:48 +00:00
Chris Lattner
232dd5c069 Simplify the variant handling code, no functionality change.
llvm-svn: 26023
2006-02-06 22:43:28 +00:00
Evan Cheng
2af9230f1e At the end of isel, select a replacement node for each handle that does not
have one. This can happen if a load's real uses are dead (i.e. they do not
have uses themselves).

llvm-svn: 26014
2006-02-06 08:12:55 +00:00
Evan Cheng
6f1778d4e1 Name change.
llvm-svn: 26013
2006-02-06 06:03:35 +00:00
Evan Cheng
09b5e544a9 Handle HANDLENODE: just return itself.
llvm-svn: 26011
2006-02-05 08:46:14 +00:00
Evan Cheng
0b5d4a10a9 Allow more loads to be folded which were previously prevented from happening
due to ordering issue. i.e. they were selected for chain use first.
Now at load select time, check if it is being selected for a chain use and if
it has only a single real use. If so, return a HANDLENODE (with the load as
its operand) in its place and record it.
When it is folded or the load is selected for a real use, the isel records it
as the replacement for the HANDLENODE. The replacement is done when all nodes
are selected.
This scheme exposed a couple of problems where cycles can happen. (See comments
in EmitMatchCode() for descriptions of the problems and their workaround /
solutions.) These problems have been resolved with a small compile time
penality.

llvm-svn: 25995
2006-02-05 06:43:12 +00:00
Evan Cheng
d5d3d7ad9e Re-committing the last bit of change. It shouldn't break PPC this time.
llvm-svn: 25982
2006-02-05 05:22:18 +00:00
Chris Lattner
951217976d Temporarily revert the last change, which breaks PPC and other targets that
DO select things.

llvm-svn: 25970
2006-02-04 09:23:06 +00:00
Evan Cheng
6a366c5eda Complex pattern's custom matcher should not call Select() on any operands.
Select them afterwards if it returns true.

llvm-svn: 25968
2006-02-04 08:50:49 +00:00
Chris Lattner
21f305febf node predicates add to the complexity of a pattern. This ensures that the
X86 backend attempts to match small-immediate versions of instructions before
the full size immediate versions.

llvm-svn: 25937
2006-02-03 18:06:02 +00:00
Evan Cheng
7c8bab62e5 (store (op (load ...))) folding problem. In the generated matching code,
Chain is initially set to the chain operand of store node, when it reaches
load, if it matches the load then Chain is set to the chain operand of the
load.

However, if the matching code that follows this fails, isel moves on to the
next pattern but it does not restore Chain to the chain operand of the store.
So when it tries to match the next store / op / load pattern it would fail on
the Chain == load.getOperand(0) test.

The solution is for each chain operand to get a unique name. e.g. Chain10.

llvm-svn: 25931
2006-02-03 06:22:41 +00:00
Chris Lattner
c9a001a67d add a note, ya knoe
llvm-svn: 25880
2006-02-01 19:12:23 +00:00
Evan Cheng
efdfb534a7 If a pattern's root node is a constant, its size should be 3 rather than 2.
llvm-svn: 25870
2006-02-01 06:06:31 +00:00
Chris Lattner
8d9da62be7 implement test/Regression/TableGen/DagIntSubst.ll
llvm-svn: 25836
2006-01-31 06:02:35 +00:00
Chris Lattner
b7616b85bc simplify some code
llvm-svn: 25791
2006-01-29 20:01:35 +00:00
Andrew Lenharth
1ba3cfd622 it is nice not to chop off bits for those blessed with lots of bits
llvm-svn: 25766
2006-01-29 05:22:37 +00:00
Andrew Lenharth
fde505e9f5 make the casts actually cast to the variable type
llvm-svn: 25765
2006-01-29 05:17:22 +00:00
Andrew Lenharth
896015b24f start of the 64bit safety cleanup
llvm-svn: 25764
2006-01-29 05:07:04 +00:00
Chris Lattner
024ea8e7ca Emit series of conditionals with &&, emitting stuff like this:
if (N1.getOpcode() == ISD::LOAD &&
        N1.hasOneUse() &&
        !CodeGenMap.count(N1.getValue(0)) &&
        !CodeGenMap.count(N1.getValue(1))) {

instead of this:

    if (N1.getOpcode() == ISD::LOAD) {
      if (N1.hasOneUse()) {
        if (!CodeGenMap.count(N1.getValue(0))) {
          if (!CodeGenMap.count(N1.getValue(1))) {

llvm-svn: 25763
2006-01-29 04:41:05 +00:00
Chris Lattner
8624868903 Factor matching code that is common between patterns. This works around
GCC not jump-threading across this common code, and produces far nicer
output.

llvm-svn: 25762
2006-01-29 04:25:26 +00:00
Chris Lattner
f94049edf9 Split out code generation from analysis from emission
llvm-svn: 25759
2006-01-29 02:57:39 +00:00
Chris Lattner
6be3b584f4 move some code around, no change in the generated code
llvm-svn: 25758
2006-01-29 02:43:35 +00:00
Chris Lattner
3cdfba635c now that we have control over emission of the code, emit the code using nested
"if" statements (indenting it appropriately, of course) instead of using goto's.

This inverts the logic for all of the if statements, which makes things simpler
to understand in addition to making the generated code easier to read.

llvm-svn: 25757
2006-01-28 20:43:52 +00:00
Chris Lattner
b6fc7b5e71 Change PatternCodeEmitter to emit code into a buffer instead of emitting it
directly to the output file.  This makes things simple because the code doesn't
have to worry about indentation or the case when there is no goto.  It also
allows us to indent the code better without touching everything :)

llvm-svn: 25756
2006-01-28 20:31:24 +00:00
Chris Lattner
d9026d62f8 Fit to 80 columns, no functionality change
llvm-svn: 25752
2006-01-28 19:06:51 +00:00
Jeff Cohen
96bb922537 Teach tablegen to generate code that is VC++ warning-free.
llvm-svn: 25709
2006-01-27 22:22:28 +00:00
Evan Cheng
450fcb1d91 (store (op (load ...)), ...)
If store's chain operand is load, then use load's chain operand instead. If
it isn't (likely a TokenFactor), then do not allow the folding.

llvm-svn: 25708
2006-01-27 22:13:45 +00:00
Evan Cheng
77885c204d Subtarget feature can now set any variable to any value
llvm-svn: 25678
2006-01-27 08:09:42 +00:00
Chris Lattner
df97630390 Use printInlineAsm to, well, print inline asm's.
llvm-svn: 25677
2006-01-27 02:10:50 +00:00
Chris Lattner
cc5d4e56f0 PHI and INLINEASM are now builtin instructions provided by Target.td
llvm-svn: 25673
2006-01-27 01:45:06 +00:00
Chris Lattner
c3d295a47c If we want to emit things in enum order, use getInstructionsByEnumValue to
get the order, don't compute it ourselves.

Don't emit stuff like (14<<0), emit 14 instead.

Don't attempt to get target properties for builtin instructions.

llvm-svn: 25672
2006-01-27 01:44:09 +00:00
Chris Lattner
a932c5aafb There is at least a 'noitinerary' itinerary now
llvm-svn: 25671
2006-01-27 01:41:55 +00:00
Chris Lattner
1ec0a10fed Don't emit JIT code for these instructions
llvm-svn: 25669
2006-01-27 01:39:38 +00:00
Chris Lattner
0ee2c3b109 Teach the dag selectors to select InlineAsm nodes.
Aren't we happy the pattern selectors are almost all gone?

llvm-svn: 25666
2006-01-26 23:08:55 +00:00
Evan Cheng
8b6fb0763c Another folding problem: if a node r/w chain or flag, don't fold it if it
has already been selected. The number of use check is not strong enough since
a node can be replaced with newly created target node. e.g. If the original
node has two uses, when it is selected for one of the uses it is replaced with
another. Each node now has a single use but isel still should not fold it.

llvm-svn: 25651
2006-01-26 19:13:45 +00:00
Evan Cheng
37d647c562 Add a FIXME comment.
llvm-svn: 25635
2006-01-26 02:13:31 +00:00
Evan Cheng
849d522805 Incoming (and optional) flag bugs. They may be embedded inside a inner node of
a pattern. Also, nodes which take incoming flag should not be folded if it has
more than one use.

llvm-svn: 25627
2006-01-26 00:22:25 +00:00
Evan Cheng
dd2ee4821a Fix an optional in flag bug.
llvm-svn: 25590
2006-01-24 20:46:50 +00:00
Evan Cheng
1f68845c8c Optional InFlag was not being included in node.
llvm-svn: 25588
2006-01-24 20:07:38 +00:00
Evan Cheng
d3713a9b9a Prevent folding of a node with multiple uses if the node already folds a load!
Here is an example where the load ended up being done twice:

%A = global uint 0

uint %test(uint %B, ubyte %C) {
	%tmp = load uint *%A;
	%X = shl uint %tmp, ubyte %C
	%Cv = sub ubyte 32, %C
	%Y = shr uint %B, ubyte %Cv
	%Z = or uint %Y, %X
	store uint %Z, uint* %A
	ret uint %Z
}

==>

	subl $4, %esp
	movl %ebx, (%esp)
	movl 8(%esp), %edx
	movl A, %eax
	movb 12(%esp), %bl
	movb %bl, %cl
	shldl %cl, %edx, %eax
	movb %bl, %cl
	shldl %cl, %edx, A
	movl (%esp), %ebx
	addl $4, %esp
	ret

llvm-svn: 25471
2006-01-20 01:11:03 +00:00
Evan Cheng
4a3ee9d5a6 Bug fix. Flag operand number may be calculated incorrectly.
llvm-svn: 25465
2006-01-19 21:57:10 +00:00
Evan Cheng
f168c680e5 Use pattern information to determine whether the use expects this
instruction to produce a result. e.g MUL8m, the instruction does not
produce a explicit result. However it produces an implicit result in
AL which would be copied to a temp. The root operator of the matching
pattern is a mul so the use would expect it to produce a result.

llvm-svn: 25458
2006-01-19 10:12:58 +00:00
Evan Cheng
49fa8f2cea Prevent unnecessary CopyToReg when the same HW register appears in two spots
in the pattern.

llvm-svn: 25437
2006-01-19 01:55:45 +00:00
Chris Lattner
6efb726290 fix a broken comment
llvm-svn: 25411
2006-01-17 21:31:18 +00:00
John Criswell
ab12f83120 Regenerated the Lex and Yacc output files on Linux. It seems that our
Linux machines don't like the source code generated on MacOS X for some
reason.

llvm-svn: 25394
2006-01-17 17:01:34 +00:00
Evan Cheng
e840301269 Emit a type matching check for ComplexPatterns.
llvm-svn: 25392
2006-01-17 07:36:41 +00:00
Evan Cheng
ddc62a9b61 Type inferencing bug
llvm-svn: 25337
2006-01-15 10:04:45 +00:00
Evan Cheng
dc7ec6c63e Allow transformation from GlobalAddress to TargetGlobalAddress and
ExternalSymbol to TargetExternalSymbol.

llvm-svn: 25252
2006-01-12 19:35:54 +00:00
Evan Cheng
bbe910088d GlobalAddress -> TargetGlobalAddress; ExternalSymbol -> TargetExternalSymbol
llvm-svn: 25245
2006-01-12 07:54:57 +00:00
Evan Cheng
5fa1397b29 Some minor fixes.
llvm-svn: 25227
2006-01-11 22:16:13 +00:00
Chris Lattner
4e465047c1 Always select target registers to themselves
llvm-svn: 25218
2006-01-11 19:52:27 +00:00
Chris Lattner
0343518492 Emit an error instead of an assertion if trying to do bogus things in result patterns.
llvm-svn: 25194
2006-01-11 01:33:49 +00:00
Robert Bocchino
9a57550e4e Added support for the extractelement operation.
llvm-svn: 25181
2006-01-10 19:05:34 +00:00
Evan Cheng
7b8f8c317e * Remove instruction fields hasInFlag / hasOutFlag and added SNDPInFlag and
SNDPOutFlag to DAG nodes. These properties do not belong to target specific
instructions.
* Added DAG node property SNDPOptInFlag. It's same as SNDPInFlag except it's
optional. Used by ret / call, etc.

llvm-svn: 25154
2006-01-09 18:27:06 +00:00
Evan Cheng
353958d60c Pattern complexity calculation fix.
llvm-svn: 25133
2006-01-06 22:19:44 +00:00
Evan Cheng
1d376c6eb2 Tweak pattern complexity calc.
llvm-svn: 25122
2006-01-06 02:30:23 +00:00
Evan Cheng
c6ad7a02a8 Bug fix wrt chain operand.
llvm-svn: 25115
2006-01-06 00:41:12 +00:00
Jeff Cohen
2230844c7b Replace fix with one less disruptive to the original code.
Also note that GCC 4.1 also correctly flags the syntax error.

llvm-svn: 25076
2006-01-04 03:23:30 +00:00
Jeff Cohen
8c5173a440 Tblgen was generating syntactically illegal C++ code like:
SDOperand Tmp0,Tmp1,Tmp2,Tmp3,;

GCC has a bug (24907) in which is fails to catch this, but VC++ correctly
notes its illegality, so tblgen must be taught to only generate legal C++.

llvm-svn: 25075
2006-01-04 03:15:19 +00:00
Chris Lattner
5a6761490a Remove obsolete comment, make things look a bit nicer
llvm-svn: 25070
2006-01-04 00:32:01 +00:00
Chris Lattner
ae035f3604 reduce stack usage of the recursive SelectCode function by out-lining each
case of the switch statement into its own method.

llvm-svn: 25069
2006-01-04 00:25:00 +00:00
Chris Lattner
f6418363ba Remove my previous ugly hack that tries to reduce the stack space usage
of SelectCode to make way for a better solution.

llvm-svn: 25068
2006-01-03 22:55:16 +00:00
Duraid Madina
d3cf232a4f HP-UX DVDs are crunchy and good to eat
llvm-svn: 25052
2005-12-30 16:41:48 +00:00
Duraid Madina
c4a1bfd13d almost got the HP-UX tester up.. :)
llvm-svn: 25051
2005-12-30 14:56:37 +00:00
Nate Begeman
ec7c28a28c Add support for generating v4i32 altivec code
llvm-svn: 25046
2005-12-30 00:12:56 +00:00
Duraid Madina
d63b3a13cc This gets most of the backends building with HP HappyC++.
llvm-svn: 25029
2005-12-27 10:56:22 +00:00
Evan Cheng
231b11ba87 Added field noResults to Instruction.
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.

llvm-svn: 25017
2005-12-26 09:11:45 +00:00