Evan Cheng
c15d18c501
(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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25708 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:13:45 +00:00
Chris Lattner
fabcb7abc5
Teach the dag selectors to select InlineAsm nodes.
...
Aren't we happy the pattern selectors are almost all gone?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25666 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 23:08:55 +00:00
Evan Cheng
1feeeecf4c
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25651 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 19:13:45 +00:00
Evan Cheng
8eab3608de
Add a FIXME comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25635 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 02:13:31 +00:00
Evan Cheng
545977371a
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25627 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 00:22:25 +00:00
Evan Cheng
9789aaad63
Fix an optional in flag bug.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25590 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24 20:46:50 +00:00
Evan Cheng
18667c4545
Optional InFlag was not being included in node.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25588 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24 20:07:38 +00:00
Evan Cheng
76356d9594
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25471 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 01:11:03 +00:00
Evan Cheng
823b752d75
Bug fix. Flag operand number may be calculated incorrectly.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25465 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 21:57:10 +00:00
Evan Cheng
7419de89fb
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25458 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 10:12:58 +00:00
Evan Cheng
b4ad33c4ae
Prevent unnecessary CopyToReg when the same HW register appears in two spots
...
in the pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25437 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 01:55:45 +00:00
Evan Cheng
57c517d30c
Emit a type matching check for ComplexPatterns.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25392 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17 07:36:41 +00:00
Evan Cheng
37e9005db3
Type inferencing bug
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25337 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15 10:04:45 +00:00
Evan Cheng
f805c2ed7f
Allow transformation from GlobalAddress to TargetGlobalAddress and
...
ExternalSymbol to TargetExternalSymbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-12 19:35:54 +00:00
Evan Cheng
bb48e33bcd
GlobalAddress -> TargetGlobalAddress; ExternalSymbol -> TargetExternalSymbol
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25245 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-12 07:54:57 +00:00
Evan Cheng
b2c6d4957a
Some minor fixes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25227 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11 22:16:13 +00:00
Chris Lattner
8020a5233c
Always select target registers to themselves
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25218 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11 19:52:27 +00:00
Chris Lattner
7893f13ad6
Emit an error instead of an assertion if trying to do bogus things in result patterns.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25194 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11 01:33:49 +00:00
Evan Cheng
51fecc80f7
* 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25154 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-09 18:27:06 +00:00
Evan Cheng
4a7c284b35
Pattern complexity calculation fix.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25133 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06 22:19:44 +00:00
Evan Cheng
e1050d616b
Tweak pattern complexity calc.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25122 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06 02:30:23 +00:00
Evan Cheng
1cf6db2d3b
Bug fix wrt chain operand.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06 00:41:12 +00:00
Jeff Cohen
60e9187a90
Replace fix with one less disruptive to the original code.
...
Also note that GCC 4.1 also correctly flags the syntax error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25076 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 03:23:30 +00:00
Jeff Cohen
f356d70ec3
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++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25075 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 03:15:19 +00:00
Chris Lattner
11966a0179
Remove obsolete comment, make things look a bit nicer
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25070 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 00:32:01 +00:00
Chris Lattner
602f692461
reduce stack usage of the recursive SelectCode function by out-lining each
...
case of the switch statement into its own method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25069 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 00:25:00 +00:00
Chris Lattner
4e3c8e516f
Remove my previous ugly hack that tries to reduce the stack space usage
...
of SelectCode to make way for a better solution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25068 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-03 22:55:16 +00:00
Duraid Madina
d47ae09dab
HP-UX DVDs are crunchy and good to eat
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25052 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-30 16:41:48 +00:00
Nate Begeman
b73628b5ab
Add support for generating v4i32 altivec code
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25046 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-30 00:12:56 +00:00
Evan Cheng
2b4ea795a2
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25017 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-26 09:11:45 +00:00
Andrew Lenharth
330851a8f6
support targetexternalsym
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25005 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-24 23:36:59 +00:00
Evan Cheng
7b05bd5814
* Support for hasInFlag and hasOutFlag (on instructions). Remove nameless FLAG
...
support which is fragile.
* Fixed a number of bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24996 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 22:11:47 +00:00
Chris Lattner
7a8054f5f2
silence some bogus gcc warnings
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24962 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 20:37:36 +00:00
Evan Cheng
3a217f3e53
Attempt to fix a crash on WIN32.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24936 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 02:35:21 +00:00
Evan Cheng
9793888be8
* Added support for FLAG - a special nameless flag register. Can be used as
...
either an operand or a result.
* Fixed some more flag / chain bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24933 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 02:24:50 +00:00
Evan Cheng
87bddeb2af
Allows instructions which no explicit operands. e.g. X86 RET which has but
...
an implicit flag operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24916 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 20:20:49 +00:00
Chris Lattner
4e6a1d2433
Eliminate some GCC warnings from the generated code
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24897 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 05:31:05 +00:00
Evan Cheng
5fb5e10cdc
Fix the semantic of Requires<[cond]> to mean if (!cond) goto PXXFail;
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24883 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 20:08:01 +00:00
Chris Lattner
2f0f9a6973
This ugly patch works around a GCC bug where it is compiling SelectCode to
...
use too much stack space, overflowing the stack for large functions. Instead
of emitting new SDOperands in each match block, we emit some common ones at
the top of SelectCode then reuse them when possible.
This reduces the stack size of SelectCode from 28K to 21K. Note that GCC
compiles it to 512 bytes :-/
I've filed GCC PR 25505 to track this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24882 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 19:41:03 +00:00
Evan Cheng
4fba28116c
Now support instructions with implicit write to non-flag registers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24878 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 07:37:41 +00:00
Evan Cheng
e08705134f
Lefted out a fix in the previous check in.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24873 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 00:06:17 +00:00
Evan Cheng
f9fc25db32
Fix another bug related to chain / flag.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24868 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19 22:40:04 +00:00
Evan Cheng
1b80f4d2c6
Fixes for a number of bugs: save flag results in CodeGenMap, folded chains
...
may not all have ResNo == 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24858 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19 07:18:51 +00:00
Chris Lattner
5216c698de
Handle basic block nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24833 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 21:05:44 +00:00
Chris Lattner
dc464de9b0
More fixes for Selection of copyto/fromreg with a flag
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24829 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 15:45:51 +00:00
Chris Lattner
755dd09815
Select copytoreg and copyfromreg nodes that have flag operands correctly.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24827 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 15:28:25 +00:00
Evan Cheng
bcecf33dc2
Support for read / write from explicit registers with FlagVT type.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24753 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17 01:19:28 +00:00
Evan Cheng
58e84a69f5
Added support to specify predicates.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14 22:02:59 +00:00
Evan Cheng
01f318bfca
Skip over srcvalue nodes when generating ISEL code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24704 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14 02:21:57 +00:00
Evan Cheng
0e65b27e28
Bug fix: CodeGenMap[N] = ... -> CodeGenMap[N.getValue(0)] = ...
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24680 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 23:45:21 +00:00
Evan Cheng
481c8e0501
At top of generated isel SelectCode() is this:
...
if (!N.Val->hasOneUse()) {
std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
if (CGMI != CodeGenMap.end()) return CGMI->second;
}
Suppose a DAG like this:
X
^ ^
/ \
USE1 USE2
Suppose USE1 is being selected first and during which X is selected and
returned a new node. After this, USE1 is no longer an use of X. During USE2
selection, X will be selected again since it has only one use!
The fix is to always query CodeGenMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 23:22:48 +00:00
Evan Cheng
8621789fcc
Bug fix: finding the correct incoming chain for pattern with nested src operand. And a minor change to make output code slightly more readible.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24669 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 19:37:43 +00:00
Nate Begeman
28a6b02626
Add support for TargetConstantPool nodes to the dag isel emitter, and use
...
them in the PPC backend, to simplify some logic out of Select and
SelectAddr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 02:36:00 +00:00
Evan Cheng
ba7fa0b5d4
Stop emitting a redudant type check for complex pattern node.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24655 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 01:57:33 +00:00
Evan Cheng
1129e87ff4
For instructions which produce no result, e.g. store, chain's Resno == 0.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24652 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 00:09:17 +00:00
Chris Lattner
5b21be76e1
Add a new SDTCisPtrTy constraint, which indicates that an operand must have
...
the same type as the pointer type for a target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24649 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:57:42 +00:00
Evan Cheng
b915f3110d
* Do not allow nodes which produce chain results (e.g. loads) to be folded if
...
it has more than one real use (non-chain uses).
* Record folded chain producing node in CodeGenMap.
* Do not fold a chain producing node if it has already been selected as an
operand of a chain use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24647 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:45:35 +00:00
Evan Cheng
cbc09c8eaa
Prevent folding of instructions which produce chains that have more than 1 real use
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24643 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 06:06:08 +00:00
Evan Cheng
c45146ace5
* Make sure complex pattern operands are selected first since their select
...
functions can return false and causing the instruction pattern match to fail.
* Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 00:48:42 +00:00
Evan Cheng
3aa39f439a
* Added an explicit type field to ComplexPattern.
...
* Renamed MatchingNodes to RootNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24636 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:14:08 +00:00
Evan Cheng
0fc7198890
Added support for ComplexPattern. These are patterns that require C++ pattern
...
matching code that is not currently auto-generated by tblgen, e.g. X86
addressing mode. Selection routines for complex patterns can return multiple operands, e.g. X86 addressing mode returns 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24634 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:00:36 +00:00
Evan Cheng
dd304dd4bd
* Infer instruction property hasCtrlDep from pattern if it has one.
...
* Fixed a bug related to hasCtrlDep property use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24610 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 23:08:55 +00:00
Chris Lattner
22faeabb3a
Implement PR673: for explicit register references, use type information
...
if available
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24597 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 02:36:37 +00:00
Chris Lattner
7292c5ee32
Generate code to silence bogus GCC warnings.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24593 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 00:48:51 +00:00
Evan Cheng
1c3d19eb15
* Commit the fix (by Chris) for a tblgen type inferencing bug.
...
* Enhanced tblgen to handle instructions which have chain operand and writes a
chain result.
* Enhanced tblgen to handle instructions which produces no results. Part of
the change is a temporary hack which relies on instruction property (e.g.
isReturn, isBranch). The proper fix would be to change the .td syntax to
separate results dag from ops dag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24587 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-04 08:18:16 +00:00
Nate Begeman
6510b22cec
Support multiple ValueTypes per RegisterClass, needed for upcoming vector
...
work. This change has no effect on generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24563 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 04:51:06 +00:00
Evan Cheng
66a48bbc35
Teach tblgen to accept register source operands in patterns, e.g.
...
def SHL8rCL : I<0xD2, MRM4r, (ops R8 :$dst, R8 :$src),
"shl{b} {%cl, $dst|$dst, %CL}",
[(set R8:$dst, (shl R8:$src, CL))]>, Imp<[CL],[]>;
This generates a CopyToReg operand and added its 2nd result to the shl as
a flag operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24557 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 00:18:45 +00:00
Nate Begeman
ddb395463c
Stop checking the ValueType of the CodeGenInstruction. Instead, use the
...
ValueType from the RegisterClass or Operands. This step is necessary to
allow RegisterClasses to have multiple ValueTypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24555 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 00:06:14 +00:00
Chris Lattner
5d28ffdfec
Make the code generated by tblgen return the result of SelectNodeTo, to
...
permit future changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24553 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 23:08:45 +00:00
Evan Cheng
76021f010b
Better error message when unrecognized opcode is seen.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24519 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-29 18:44:58 +00:00
Chris Lattner
09c033962b
Validate that the input to 'Pat' patterns is sane.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24393 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 17:43:52 +00:00
Chris Lattner
b120a64e13
teach tblgen to be smart enough to handle tglobaladdr nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24391 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 07:39:45 +00:00
Chris Lattner
12cf9090a4
fix a tblgen bug that Evan ran into, where we would lose the '$src' name
...
on patterns like "(set R32:$dst, (i32 imm:$src))"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24383 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-16 23:14:54 +00:00
Chris Lattner
465c737467
Reject integer literals that are out of range for their type.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24162 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-03 05:46:11 +00:00
Chris Lattner
0614b628cf
Add support for immediates directly in the pattern, this allows itanium to
...
define:
def : Pat<(i1 1), (CMPEQ r0, r0)>;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24149 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-02 06:49:14 +00:00
Chris Lattner
9d1a02345c
Make negative immediates in patterns work correctly, silence some warnings
...
building the itanium backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24095 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-29 16:39:40 +00:00
Chris Lattner
b0e103d46b
Rename Record::getValueAsListDef to getValueAsListOfDefs, to more accurately
...
reflect what it is.
Convert some more code over to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24072 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-28 22:49:02 +00:00
Chris Lattner
6bc0d742c2
Use the new interface Jim added
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24071 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-28 22:43:25 +00:00
Chris Lattner
a7ad198f89
Condcodes are in the ISD namespace
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24010 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-26 17:02:02 +00:00
Chris Lattner
1531f2025c
Add support for CondCode's
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24008 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-26 16:59:37 +00:00
Chris Lattner
f071bb5b87
Emit some boilerplate for targets
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23983 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-25 20:35:14 +00:00
Chris Lattner
edbd8711de
Make tblgen emit:
...
tblgen: In ZAPNOTi: Cannot use 'IZAPX' in an input pattern!
for a bad pattern, instead of an ugly assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23854 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-21 01:19:59 +00:00
Chris Lattner
2f041d49a9
add support for literal immediates in patterns to match, allowing us to
...
write things like this:
def : Pat<(add GPRC:$in, 12),
(ADD12 GPRC:$in)>;
Andrew: if this isn't enough or doesn't work for you, please lemme know.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23819 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 04:41:05 +00:00
Chris Lattner
5d5a056092
Add basic support for integer constants in pattern results.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23817 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 04:30:56 +00:00
Chris Lattner
4c59309f59
Add support for patterns that have physical registers in them. Testcase:
...
def : Pat<(trunc G8RC:$in),
(OR8To4 G8RC:$in, X0)>;
Even though this doesn't make any sense on PPC :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23815 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 02:07:26 +00:00
Chris Lattner
ab1bf27be5
Asserting here is to violent
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23814 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:55:23 +00:00
Chris Lattner
0c0cfa741f
Nate wants to define 'Pat's which turn into instructions that don't have
...
patterns. Certainly a logical request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23810 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:27:22 +00:00
Chris Lattner
b277cbc087
Duraid pointed out that it is impolite to emit PPC:: into the IA64 backend
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23780 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 04:41:01 +00:00
Chris Lattner
5024d93c8b
Make the generated code significantly more memory efficient, by using
...
SelectNodeTo instead of getTargetNode when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23758 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 01:41:58 +00:00
Chris Lattner
7e82f1322c
Implement the last major missing piece in the DAG isel generator: when emitting
...
a pattern match, make sure to emit the (minimal number of) type checks that
verify the pattern matches this specific instruction. This allows FMA32
patterns to not match double expressions for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23748 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 21:34:21 +00:00
Chris Lattner
603d78c9de
Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
...
type constraint. This lets tblgen realize that it doesn't need any dynamic
type checks for fextend/fround on PPC (and many other targets), because there
are only two fp types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23730 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:25:00 +00:00
Chris Lattner
3c7e18d690
Fairly serious rework of the typing code to add new int/fp lattice values.
...
Overall, no functionality change yet though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:12:03 +00:00
Chris Lattner
e0583b1b92
simplify the code a bit
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23728 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 05:08:37 +00:00
Chris Lattner
03ebd802c7
Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23725 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:53:53 +00:00
Chris Lattner
0ee7cff4fb
Implement a couple of new (important) features.
...
1. If an operation has to be int or fp and the target only supports one
int or fp type, relize that the op has to have that type.
2. If a target has operations on multiple types, do not emit matching code
for patterns involving those operators, since we do not emit the code to
check for them yet. This prevents PPC from generating FP ops currently.
Also move some code around into more logical places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23724 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:11:13 +00:00
Chris Lattner
af302914d1
Teach tablegen to reassociate operators when possible. This allows it to
...
find all of teh pattern matches for EQV from one definition
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23529 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 22:36:54 +00:00
Chris Lattner
e46e17b7fb
Teach tblgen to build permutations of instructions, so that the target author
...
doesn't have to specify them manually. It currently handles associativity,
e.g. knowing that (X*Y)+Z also matches X+(Y*Z) and will be extended in
the future.
It is smart enough to not introduce duplicate patterns or patterns that can
never match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23526 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 19:28:10 +00:00
Chris Lattner
7cf2fe6c48
add support for an associative marker
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23502 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 20:58:06 +00:00
Chris Lattner
e97603f1bd
Emit an error if instructions or patterns are defined but can never match.
...
Currently we check that immediate values live on the RHS of commutative
operators. Defining ORI like this, for example:
def ORI : DForm_4<24, (ops GPRC:$dst, GPRC:$src1, u16imm:$src2),
"ori $dst, $src1, $src2",
[(set GPRC:$dst, (or immZExt16:$src2, GPRC:$src1))]>;
results in:
tblgen: In ORI: Instruction can never match: Immediate values must be on the RHS of commutative operators!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23501 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 19:27:25 +00:00
Chris Lattner
a1a68ae061
collect commutativity information
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23499 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:28:29 +00:00
Chris Lattner
05814af29f
Prefer cheaper patterns to more expensive ones. Print the costs to the generated
...
file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23492 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 17:57:56 +00:00
Chris Lattner
f6f9416363
Select Constant nodes to TargetConstant nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23488 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 16:58:06 +00:00
Chris Lattner
fab3728801
memoize the assert results
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23457 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 22:10:24 +00:00
Chris Lattner
3748147aaf
Emit the switch stmt cases in alphabetical order instead of pointer order,
...
which is not stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23456 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:59:35 +00:00
Chris Lattner
6bc7e513d5
implement a fixme: only select values once, even if used multiple times.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23454 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:53:26 +00:00
Jeff Cohen
a48283baa3
Fix VC++ build errors.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23431 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-25 19:04:43 +00:00
Chris Lattner
296dfe3b8a
memoize translations
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:50:51 +00:00
Chris Lattner
72fe91c4dd
Teach the DAG isel generator to emit code that creates nodes.
...
Fix a few corner cases parsing things like (i32 imm:$foo)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:40:24 +00:00
Chris Lattner
8fc3568d98
Emit better code (no more copies for var references), and support DAG patterns
...
(e.g. things like rotates).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 23:16:51 +00:00
Chris Lattner
547394ca38
Fix a fixme by passing around SDOperand's instead of SDNode*'s
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23415 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 21:53:45 +00:00
Chris Lattner
d1ff35a49d
Emit code that matches the incoming DAG pattern and checks predicates.
...
This does not check that types match yet, but PPC only has one integer type
;-).
This also doesn't have the code to build the resultant dag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23414 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 21:33:23 +00:00
Chris Lattner
3f7e91477e
emit information about the order patterns are to be matched.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23413 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 20:52:47 +00:00
Chris Lattner
813033248c
start filling in the switch stmt
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23412 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 19:36:15 +00:00
Chris Lattner
b9f01eb7bc
Fix a minor bug, add comments
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23370 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-16 00:29:46 +00:00
Chris Lattner
a28aec1da7
teach the type inference code how to infer types for instructions and node
...
xforms. Run type inference on result patterns, so we always have fully typed
results (and to catch errors in .td files).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23369 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 22:23:50 +00:00
Chris Lattner
ae5b350b3b
put instructions into a map instead of a vector for quick lookup
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23368 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 21:57:35 +00:00
Chris Lattner
ae6d828de8
when parsing instructions remember information about the types taken and
...
returned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23367 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 21:51:12 +00:00
Chris Lattner
abbb605d80
Start parsing "Pattern" nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23365 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 21:42:00 +00:00
Chris Lattner
b39e4be1e1
rename a couple of methods, add structure for pattern parsing
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23364 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 02:38:02 +00:00
Chris Lattner
f1311843d5
Verify that xform functions only occur in logical places
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23363 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 23:05:13 +00:00
Chris Lattner
2175c18c4f
Promote xform fns to be explicit nodes in result patterns, and clean off
...
predicates since they will have already matched at this point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23362 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 23:01:59 +00:00
Chris Lattner
b0276200e6
start building the instruction dest pattern correctly. Change the xform
...
functions to preserve the Record for the xform instead of making it into a
function name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23361 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 22:55:26 +00:00
Chris Lattner
7da852fbab
catch unnamed inputs
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23360 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 22:06:36 +00:00
Chris Lattner
0b59225fe1
check that there are no unexpected operands
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23359 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 21:59:34 +00:00
Chris Lattner
c4a8b73ab3
force all instruction operands to be named.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 21:13:50 +00:00
Chris Lattner
3a7319d5ed
fix a broke range check
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23354 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 21:04:12 +00:00
Chris Lattner
d8a3bde6fd
Parse significantly more of the instruction pattern, now collecting and
...
verifying information about the operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23353 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 20:53:42 +00:00
Chris Lattner
39e8af9913
Verify that set destinations occur first in the instruction operand list.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23351 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 18:19:25 +00:00
Chris Lattner
71cdb7fc7a
remove some code that isn't ready for prime time
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23346 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 06:03:10 +00:00
Chris Lattner
ec67643e86
Switch to a slightly more structured representation for instructions
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23345 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 04:03:16 +00:00
Chris Lattner
5f8cb2a28a
Add some more checking/verification code
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23344 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 02:11:12 +00:00
Chris Lattner
1f39e2910b
start parsing instructions into patterns, start doing many more checks of
...
'set's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23343 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 00:09:24 +00:00
Chris Lattner
f4f33ba518
don't emit the namespace inside the class!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23341 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:05:02 +00:00
Chris Lattner
1048b7a67e
Emit code suitable for emission into the ISel class, allowing us to use/define
...
methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23340 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 22:03:37 +00:00
Chris Lattner
6de8b53230
continue xform function parsing
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23338 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:59:15 +00:00
Chris Lattner
24eeeb8c3e
Start parsing node transformation information
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23337 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:51:00 +00:00
Chris Lattner
ee9f0c3c2e
completely eliminate TreePattern::PatternType
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23335 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:20:49 +00:00
Chris Lattner
3793709e89
add an accessor to provide more checking
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23289 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 01:15:01 +00:00
Chris Lattner
f2a17a70f4
use new accessors to simplify code. Add checking to make sure top-level instr
...
definitions are void
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23288 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 01:11:44 +00:00
Chris Lattner
95f6b76817
Fix incorrect comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23285 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 23:26:30 +00:00
Chris Lattner
327076005d
Implement a complete type inference system for dag patterns, based on the
...
constraints defined in the DAG node definitions in the .td files. This
allows us to infer (and check!) the types for all nodes in the current
ppc .td file. For example, instead of:
Inst pattern EQV: (set GPRC:i32:$rT, (xor (xor GPRC:i32:$rA, GPRC:i32:$rB), (imm)<<Predicate_immAllOnes>>))
we now fully infer:
Inst pattern EQV: (set:void GPRC:i32:$rT, (xor:i32 (xor:i32 GPRC:i32:$rA, GPRC:i32:$rB), (imm:i32)<<Predicate_immAllOnes>>))
from: (set GPRC:$rT, (not (xor GPRC:$rA, GPRC:$rB)))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23284 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 23:22:48 +00:00
Chris Lattner
33c92e9296
Parse information about type constraints on SDNodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23281 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:27:15 +00:00
Chris Lattner
6af14a629d
use node info in the one place we currently use it
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23280 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:04:46 +00:00
Chris Lattner
ca559d0654
start parsing SDNode info records
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23279 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:03:01 +00:00
Chris Lattner
fbf8e57639
Keep names even when inlining. This allows us to realize that ADDI is:
...
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>:$imm))
not:
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>))
(we keep the ":$imm")
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23269 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 17:45:12 +00:00
Chris Lattner
54cb8fd814
Initial cut of the dag isel generator. This is still very much a work in
...
progress. It correctly parses instructions and pattern fragments and glues
together pattern fragments into instructions.
The only code it generates currently is some boilerplate code for things
like the EntryNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23261 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07 23:44:43 +00:00