Chris Lattner
f7560ed6b1
Fix PR1001, patch by Nikhil Patil!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31880 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-20 18:54:33 +00:00
Evan Cheng
fb1aab0673
Add opcode to TargetInstrDescriptor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31804 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-17 01:46:27 +00:00
Chris Lattner
f64f9a4b75
Remove the isTwoAddress property from the CodeGenInstruction class. It should
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not be used for anything other than backwards compat constraint handling.
Add support for a new DisableEncoding property which contains a list of
registers that should not be encoded by the generated code emitter. Convert
the codeemitter generator to use this, fixing some PPC JIT regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31769 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-15 23:23:02 +00:00
Chris Lattner
0bb75004ff
ADd support for adding constraints to suboperands
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31748 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-15 02:38:17 +00:00
Chris Lattner
33a400477b
restore some 'magic' code that I removed: it is needed. Add comments explaining
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why.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31743 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 22:17:10 +00:00
Chris Lattner
717a611f79
minimal hack to get patterns whose result type is iPTR to be selected.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31742 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 21:50:27 +00:00
Chris Lattner
0d1bb1322c
remove some dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 21:41:35 +00:00
Chris Lattner
ab51ddd7c0
Add support for nodes that return iPTR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 21:32:01 +00:00
Chris Lattner
646085dde9
changes to get ptr_rc to be accepted in patterns. This is needed for ppc preinc
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stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 21:18:40 +00:00
Chris Lattner
7c3a96b81a
Fix a bug handling nodes with variable arguments. The code was fixed to assume
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that there were two input operands before the variable operand portion. This
*happened* to be true for all call instructions, which took a chain and a
destination, but was not true for the PPC BCTRL instruction, whose destination
is implicit.
Making this code more general allows elimination of the custom selection logic
for BCTRL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 18:41:38 +00:00
Chris Lattner
f196839562
allow ptr_rc to explicitly appear in an instructions operand list, it doesn't
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have to be a subpart of a complex operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31618 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-10 02:01:40 +00:00
Evan Cheng
a1fd6504aa
Remove M_2_ADDR_FLAG.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31583 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 02:22:54 +00:00
Evan Cheng
892aaf8d74
Divide select methods into groups by SelectionDAG node opcodes (ISD::ADD,
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X86ISD::CMP, etc.) instead of SDNode names (add, x86cmp, etc). We now allow
multiple SDNodes to map to the same SelectionDAG node (e.g. store, indexed
store).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31575 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 23:01:03 +00:00
Evan Cheng
811731e340
Always pass the root node to ComplexPattern isel matching function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31570 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 20:31:10 +00:00
Chris Lattner
29434364dd
emit TIED_TO correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31484 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-07 01:27:55 +00:00
Chris Lattner
d9a7f4db5f
Mark predicate operands as such in operand info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31483 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-06 23:53:31 +00:00
Chris Lattner
a0cca4ae26
simplify the way operand flags and constraints are handled, making it easier
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to extend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31481 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-06 23:49:51 +00:00
Chris Lattner
a818e92f8b
recognize ppc's blr instruction as predicated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31480 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-06 21:44:54 +00:00
Chris Lattner
5fa39df5ba
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31472 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-05 23:28:58 +00:00
Jeff Cohen
d41b30def3
Unbreak VC++ build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-05 19:31:28 +00:00
Evan Cheng
c51737f46f
Clean up some code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31451 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-04 09:40:23 +00:00
Chris Lattner
efe9f4a3b6
Parse PredicateOperand's. When an instruction takes one, have the generated
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isel fill in the instruction operands with the 'execute always' value
automatically.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31448 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-04 05:12:02 +00:00
Chris Lattner
dfdaeb276e
First steps to getting PredicateOperand's to work. This handles instruction
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and pat pattern definitions. Codegen is not right for them yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31444 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-04 01:35:50 +00:00
Chris Lattner
d438b53e76
eliminate need for the NumMIOperands field in Operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31432 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 23:45:17 +00:00
Reid Spencer
fa3e3b9427
Remove an unused variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31403 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 01:48:30 +00:00
Reid Spencer
8b9ea8099e
Don't write out variables that are never used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31396 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 01:28:12 +00:00
Chris Lattner
9c5d4de837
silence warnings
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31392 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 01:11:05 +00:00
Reid Spencer
63fd6ad77b
Revert last patch which causes tblgen to segfault (why, I'm not sure).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31383 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02 21:07:40 +00:00
Reid Spencer
9ec4849ff6
For PR786:
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Remove unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31381 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02 20:46:16 +00:00
Evan Cheng
4c2b7a3808
Tied-to constraint must be op_with_larger_idx = op_with_smaller_idx or else throw an exception.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31361 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 23:03:11 +00:00
Evan Cheng
0db427bb2d
Not meant to be checked in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31334 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 00:27:59 +00:00
Evan Cheng
e2ba897588
Add operand constraints to TargetInstrInfo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31333 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 00:27:05 +00:00
Evan Cheng
13e9e9c235
Passing isel root and use operands to ComplexPattern functions, these should do the usual load folding checks as well.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30972 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-16 06:33:44 +00:00
Evan Cheng
ce1381afd9
When checking if a load can be folded, we check if there is any non-direct
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way to reach the load via any nodes that would be folded. Start from the
root of the matched sub-tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30956 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14 08:30:15 +00:00
Evan Cheng
4f77616c28
Really remove dead nodes from isel queue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30923 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 23:18:52 +00:00
Evan Cheng
1fae00f1ad
Use RemoveDeadNode to kill dead node.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30917 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 20:35:19 +00:00
Evan Cheng
4326ef582b
Prior load folding check on chain operand was too strict. It requires the
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chain operand to point to the load being folded. Now we relax this, traversing
up the chain, if it doesn't reach the load, then it's ok. We will create a
TokenFactor (of all the chain operands and the load's chain) to capture all
the control flow dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30897 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 02:08:53 +00:00
Evan Cheng
94b3040fef
Added properties such as SDNPHasChain to ComplexPattern.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30890 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 21:02:01 +00:00
Chris Lattner
bcc3f0a61d
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30888 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 18:13:09 +00:00
Chris Lattner
1ceb6c830f
Add support for let expressions around an mdef. This implements a new part
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of Regression/TableGen/MultiClass.td.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30887 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 18:12:44 +00:00
Chris Lattner
39e73f7c83
Special case tblgen generated code for patterns like (and X, 255) or (or X, 42).
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The dag/inst combiners often 'simplify' the masked value based on whether
or not the bits are live or known zero/one. This is good and dandy, but
often causes special case patterns to fail, such as alpha's CMPBGE pattern,
which looks like "(set GPRC:$RC, (setuge (and GPRC:$RA, 255), (and GPRC:$RB, 255)))".
Here the pattern for (and X, 255) should match actual dags like (and X, 254) if
the dag combiner proved that the missing bits are already zero (one for 'or').
For CodeGen/Alpha/cmpbge.ll:test2 for example, this results in:
sll $16,1,$0
cmpbge $0,$17,$0
ret $31,($26),1
instead of:
sll $16,1,$0
and $0,254,$0
and $17,255,$1
cmpule $1,$0,$0
ret $31,($26),1
... and requires no target-specific code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30871 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 04:05:55 +00:00
Chris Lattner
be8e72120d
Split some code out into a new method. The generated code is exactly
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identical, this is just a refactoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30868 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 03:35:34 +00:00
Evan Cheng
d3eea90a9b
Predicate function on the node should be matched before its childrean' matching
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code. This is especially important now matching ISD::LOAD also requires a
Predicate_Load call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30845 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 21:02:17 +00:00
Chris Lattner
dc52f17a30
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30799 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-07 07:15:19 +00:00
Chris Lattner
85899b8b10
Bugfix: this allows multiclasses to have default arguments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-07 07:14:48 +00:00
Chris Lattner
90aa839c88
Fix more static dtor issues
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30725 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-04 21:52:35 +00:00
Chris Lattner
259bda48e2
This:
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AggregateString += "\0\0";
Doesn't add two nuls to the AggregateString (for obvious reasons), which
broke the asmprinter when the first character of an asm string was not
literal text.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30625 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-27 16:44:09 +00:00
Chris Lattner
16f046a6ce
Actually, name the method PrintSpecial to match other stuff in AsmPrinter.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30618 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-26 23:47:10 +00:00
Chris Lattner
1bf6361dfd
Add support for ${:foo} syntax, where "foo" is passed into "printSpecial" and
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has no associated operand. This is useful for portably encoding stuff like
the comment character into an asm string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30617 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-26 23:45:08 +00:00
Chris Lattner
ce6e84ca6c
don't allow 'imm' or specific imms, like '1' on the LHS of a binop.
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This shrinks X86GenDAGISel by ~330 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30574 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 20:46:13 +00:00
Chris Lattner
649069728f
Fit to 80 columns.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30572 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 18:28:27 +00:00
Evan Cheng
d46bd604ed
Allow PatFrag to be a leaf node.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30498 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-19 19:08:04 +00:00
Evan Cheng
cf6d791e08
Add result of a Xform to isel queue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30497 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-19 18:40:15 +00:00
Chris Lattner
bc7fa5277f
If multiple predicates are listed, they must all pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30476 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-19 00:41:36 +00:00
Chris Lattner
47a7e2681e
There!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30473 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-18 22:41:07 +00:00
Chris Lattner
a4503de431
Fix Regression/TableGen/2006-09-18-LargeInt.td
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30472 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-18 22:28:27 +00:00
Chris Lattner
7905c55b12
Relax this check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30381 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-14 23:54:24 +00:00
Evan Cheng
966fd37ba5
1) With X86 lowering change, the following can no longer happen since
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the branch's chain is also produced by cmp.
[ch, r : ld]
^ ^
| |
[XX]--/ \- [flag : cmp]
^ ^
| |
\---[br flag]-
Remove an isel check which prevents loads from being folded into cmp / test
instructions.
2) Whenever possible, delete a selected node to allow more load folding
opportunities. Note not all nodes can be deleted after it has been
selected. Some may have simply morphed; some have not changed at all (e.g.
EntryToken).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30242 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-11 02:24:43 +00:00
Evan Cheng
6cec34e094
Generated isel should favors explicit constant operand (+2) over an operand with a predicate (+1).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30180 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-08 07:26:39 +00:00
Chris Lattner
8aa01f4b43
Fix JIT encoding of two-addr instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30111 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 03:01:52 +00:00
Chris Lattner
2926869b4a
Fix a long-standing wart in the code generator: two-address instruction lowering
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actually *removes* one of the operands, instead of just assigning both operands
the same register. This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.
Changing this also gets rid of a bunch of hacky code in various places.
This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 02:12:02 +00:00
Chris Lattner
cce56af911
Make sure to clear CurDefmPrefix = 0, otherwise stuff after a defm won't
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parse right. This fixes TableGen/MultiClass.td
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30037 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01 22:07:27 +00:00
Chris Lattner
7717d0930a
fix an assertion with multidefs. Def inside of multiclasses don't need to
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be complete.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30034 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01 21:59:03 +00:00
Chris Lattner
2762738d96
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30029 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01 21:14:42 +00:00
Chris Lattner
12069866c8
Add often-requested support for defining "multiclasses" which can be instantiated.
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This allows you to define multiple definitions with one line, encouraging
more .td file factoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30027 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01 21:13:49 +00:00
Reid Spencer
f100dcc42e
Add virtual methods to all subclasses so they are not overloaded.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29930 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-28 00:12:25 +00:00
Chris Lattner
8dc728e440
Use compiler.h instead of hand rolling our own macro
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29913 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 13:16:24 +00:00
Evan Cheng
f037ca6245
Do not emit getTargetNode() and SelectNodeTo() which takes more than 3
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SDOperand arguments. Use the variants which take an array and number instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29906 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 08:11:28 +00:00
Evan Cheng
95514bae73
SelectNodeTo now returns a SDNode*.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29901 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 08:00:10 +00:00
Evan Cheng
7a33db0b20
Minor getCopyToReg() call change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29900 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 07:39:28 +00:00
Evan Cheng
9ade218533
Select() no longer require Result operand by reference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 05:34:46 +00:00
Evan Cheng
2a318cfad5
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29897 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 01:34:15 +00:00
Evan Cheng
f549319b4a
A bit more clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29893 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 01:02:19 +00:00
Evan Cheng
676d731c61
- Clean up tablegen dag isel generator code.
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- Clean up the code generated by tablegen:
* AddToISelQueue now takes one argument.
* ComplexPattern matching condition can now be shared.
* Eliminate passing unnecessary arguments to emit routines.
* Eliminate some unneeded SDOperand declarations in select routines.
* Other minor clean ups.
- This reduces foot print slightly: X86ISelDAGToDAG.o is reduced from 971k
to 823k.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29892 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 00:59:04 +00:00
Evan Cheng
23329f5e03
SelectNodeTo() may return a SDOperand that is different from the input.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-16 07:30:09 +00:00
Chris Lattner
dfb8607397
The generated runloop shouldn't require Select to update 'Result'. In fact
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we'd like to remove result entirely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29713 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-15 23:42:26 +00:00
Chris Lattner
5298de51b8
allow Select to return the node being selected if RAU isn't needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29712 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-15 23:27:50 +00:00
Evan Cheng
1e060f0242
Use SmallVector instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29619 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-11 18:33:41 +00:00
Evan Cheng
06d6470c65
- Prevent some functions from being inlined to eliminate the code size bloat
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introduced by previous commit.
- SelectCode now returns a SDNode*. If it is not null, the selected node
produces the same number of results as the input node. The seletion loop
is responsible for calling ReplaceAllUsesWith() to replace the input node
with the output target node. For other cases, e.g. when load is folded,
the selection code is responsible for calling ReplaceAllUsesOfValueWith()
and SelectCode returns NULL.
- Other clean ups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29602 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-11 08:59:35 +00:00
Chris Lattner
706d2d3608
Revert previous patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29585 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-09 16:44:44 +00:00
Tanya Lattner
8d4ccf0ad4
Reverting back to original 1.8 version so I can manually merge in patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29584 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-09 16:41:21 +00:00
Chris Lattner
bd564bfc63
Start eliminating temporary vectors used to create DAG nodes. Instead, pass
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in the start of an array and a count of operands where applicable. In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap. In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.
I updated a lot of code calling getNode that takes a vector, but ran out of
time. The rest of the code should be updated, and these methods should be
removed.
We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.
It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29566 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-08 02:23:42 +00:00
Evan Cheng
9bdca0302a
Making TableGen'd instruction selection code non-recursive. This fixes PR805.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-07 22:17:58 +00:00
Chris Lattner
58d63567ea
Remove some extraneous newlines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29492 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-03 00:42:26 +00:00
Chris Lattner
32501a0e33
Really add support for compilers without noinline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29491 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-03 00:26:13 +00:00
Evan Cheng
d3f8429f01
Pass N by reference to select functions to prevent gcc from allocating more stack.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29423 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-01 01:07:48 +00:00
Evan Cheng
6966c48767
Remove an unneeded match condition: the type check for root node has been
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moved to outside the actual select routine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29415 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-31 19:01:58 +00:00
Evan Cheng
b6ee7f73e5
Split each select function for a particular opcode into multiple ones. One
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per possible ValueType of the node. e.g. Select_add is split into Select_add_i8,
Select_add_i16, etc.
For opcodes which do not produce a non-chain result, it is split on the
ValueType of its first non-chain operand. e.g. Select_store.
On X86 / Mac OS X, Select_store used to be the largest function. It had a stack
frame size of 8.5k. Now the largest one is Store_i32 with a frame size of 3.1k.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29404 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-28 22:51:01 +00:00
Evan Cheng
dc7a66a081
Clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29378 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-28 01:19:22 +00:00
Evan Cheng
f2dfafcbc1
Rename IsFoldableBy to CanBeFoldedleBy
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29376 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-28 01:03:48 +00:00
Evan Cheng
2641cad180
Remove InFlightSet hack. No longer needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29373 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-28 00:47:19 +00:00
Evan Cheng
3aac4d58e4
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29359 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-27 19:59:34 +00:00
Evan Cheng
b2c121ac14
Let each target specific isel provide routine to check if a chain producing node is foldable by another.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29335 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-27 06:36:49 +00:00
Evan Cheng
233baf1c4b
Fix for bug 840. Only use noinline attribute if gcc version >= 3.4
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29311 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-26 23:06:27 +00:00
Evan Cheng
e6389935a9
Removed a hack intended to allow (store (op (load))) folding. Will handle this with preprocessing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29258 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-21 22:19:51 +00:00
Jim Laskey
cd4317efcf
Eliminate data relocations by using NULL instead of global empty list.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29250 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-21 21:15:20 +00:00
Jim Laskey
60f09928a0
Use an enumeration to eliminate data relocations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29249 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-21 20:57:35 +00:00
Evan Cheng
eb1f40d3af
Also checks for noResults field.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29235 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-20 23:36:20 +00:00
Evan Cheng
3b0c0148ed
Make sub- and super- register classes const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29200 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-19 05:58:18 +00:00
Chris Lattner
a6dc9fb745
Fix a bug handling instructions, like blr, which just consist of a text
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string. The return value of printInstruction should be true for these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29196 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-19 01:39:06 +00:00