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e1003da1a2
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1026 Commits

Author SHA1 Message Date
Jeff Cohen
e1003da1a2 Unbreak VC++ build. 
llvm-svn: 31464
 2006-11-05 19:31:28 +00:00
Evan Cheng
8e65006b5e Clean up some code. 
llvm-svn: 31451
 2006-11-04 09:40:23 +00:00
Chris Lattner
8dac4564af Parse PredicateOperand's. When an instruction takes one, have the generated 
isel fill in the instruction operands with the 'execute always' value
automatically.

llvm-svn: 31448
 2006-11-04 05:12:02 +00:00
Chris Lattner
f7ad33f01b First steps to getting PredicateOperand's to work. This handles instruction 
and pat pattern definitions.  Codegen is not right for them yet.

llvm-svn: 31444
 2006-11-04 01:35:50 +00:00
Chris Lattner
5eca521156 eliminate need for the NumMIOperands field in Operand. 
llvm-svn: 31432
 2006-11-03 23:45:17 +00:00
Reid Spencer
da581ac715 Remove an unused variable. 
llvm-svn: 31403
 2006-11-03 01:48:30 +00:00
Chris Lattner
f6b840a1ae silence warning 
llvm-svn: 31402
 2006-11-03 01:45:13 +00:00
Reid Spencer
d41f385ed9 Don't write out variables that are never used. 
llvm-svn: 31396
 2006-11-03 01:28:12 +00:00
Chris Lattner
71ce2c5de5 silence warnings 
llvm-svn: 31392
 2006-11-03 01:11:05 +00:00
Reid Spencer
01f5071a4d Revert last patch which causes tblgen to segfault (why, I'm not sure). 
llvm-svn: 31383
 2006-11-02 21:07:40 +00:00
Reid Spencer
0d18610609 For PR786: 
Remove unused variables.

llvm-svn: 31381
 2006-11-02 20:46:16 +00:00
Reid Spencer
4bafa71dc1 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Evan Cheng
05d73e7209 Tied-to constraint must be op_with_larger_idx = op_with_smaller_idx or else throw an exception. 
llvm-svn: 31361
 2006-11-01 23:03:11 +00:00
Evan Cheng
a585562f95 Not meant to be checked in. 
llvm-svn: 31334
 2006-11-01 00:27:59 +00:00
Evan Cheng
c566892bd5 Add operand constraints to TargetInstrInfo. 
llvm-svn: 31333
 2006-11-01 00:27:05 +00:00
Reid Spencer
bddf9a66ec 80 cols fix. 
llvm-svn: 31050
 2006-10-19 15:24:04 +00:00
Evan Cheng
f872538d4b Passing isel root and use operands to ComplexPattern functions, these should do the usual load folding checks as well. 
llvm-svn: 30972
 2006-10-16 06:33:44 +00:00
Evan Cheng
513dc7ed5f When checking if a load can be folded, we check if there is any non-direct 
way to reach the load via any nodes that would be folded. Start from the
root of the matched sub-tree.

llvm-svn: 30956
 2006-10-14 08:30:15 +00:00
Evan Cheng
c7283044d1 Really remove dead nodes from isel queue. 
llvm-svn: 30923
 2006-10-12 23:18:52 +00:00
Evan Cheng
5ff49d9410 Use RemoveDeadNode to kill dead node. 
llvm-svn: 30917
 2006-10-12 20:35:19 +00:00
Evan Cheng
65264c811f Prior load folding check on chain operand was too strict. It requires the 
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.

llvm-svn: 30897
 2006-10-12 02:08:53 +00:00
Evan Cheng
7a185e0164 Added properties such as SDNPHasChain to ComplexPattern. 
llvm-svn: 30890
 2006-10-11 21:02:01 +00:00
Chris Lattner
461eba5c63 regenerate 
llvm-svn: 30888
 2006-10-11 18:13:09 +00:00
Chris Lattner
0c0f2eacfc Add support for let expressions around an mdef. This implements a new part 
of Regression/TableGen/MultiClass.td.

llvm-svn: 30887
 2006-10-11 18:12:44 +00:00
Chris Lattner
822d1b259e Special case tblgen generated code for patterns like (and X, 255) or (or X, 42). 
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.

llvm-svn: 30871
 2006-10-11 04:05:55 +00:00
Chris Lattner
ad597308ad Split some code out into a new method. The generated code is exactly 
identical, this is just a refactoring.

llvm-svn: 30868
 2006-10-11 03:35:34 +00:00
Evan Cheng
084d415941 Predicate function on the node should be matched before its childrean' matching 
code. This is especially important now matching ISD::LOAD also requires a
Predicate_Load call.

llvm-svn: 30845
 2006-10-09 21:02:17 +00:00
Chris Lattner
b007ac9ecf regenerate 
llvm-svn: 30799
 2006-10-07 07:15:19 +00:00
Chris Lattner
b5b2e0340e Bugfix: this allows multiclasses to have default arguments. 
llvm-svn: 30798
 2006-10-07 07:14:48 +00:00
Chris Lattner
d55928d5f6 Fix more static dtor issues 
llvm-svn: 30725
 2006-10-04 21:52:35 +00:00
Jim Laskey
dca41cb87b Wrong directory. 
llvm-svn: 30669
 2006-09-29 17:31:45 +00:00
Jim Laskey
654a319cca Fix search file for -release. 
llvm-svn: 30647
 2006-09-28 18:45:11 +00:00
Jim Laskey
b9f4391b46 Add support for -release-asserts. 
llvm-svn: 30646
 2006-09-28 17:49:20 +00:00
Chris Lattner
4aa2739696 This: 
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.

llvm-svn: 30625
 2006-09-27 16:44:09 +00:00
Chris Lattner
7c98cc2aab Actually, name the method PrintSpecial to match other stuff in AsmPrinter.h 
llvm-svn: 30618
 2006-09-26 23:47:10 +00:00
Chris Lattner
10e06fa138 Add support for ${:foo} syntax, where "foo" is passed into "printSpecial" and 
has no associated operand.  This is useful for portably encoding stuff like
the comment character into an asm string.

llvm-svn: 30617
 2006-09-26 23:45:08 +00:00
Chris Lattner
86f1992481 don't allow 'imm' or specific imms, like '1' on the LHS of a binop. 
This shrinks X86GenDAGISel by ~330 lines.

llvm-svn: 30574
 2006-09-21 20:46:13 +00:00
Chris Lattner
28d7124afb Fit to 80 columns. 
llvm-svn: 30572
 2006-09-21 18:28:27 +00:00
Jim Laskey
a46690e7de Trim the home directory from the dejagnu test 
llvm-svn: 30519
 2006-09-20 09:20:22 +00:00
Evan Cheng
c5be7540d2 Allow PatFrag to be a leaf node. 
llvm-svn: 30498
 2006-09-19 19:08:04 +00:00
Evan Cheng
f020ff9440 Add result of a Xform to isel queue. 
llvm-svn: 30497
 2006-09-19 18:40:15 +00:00
Chris Lattner
87d05ea43b If multiple predicates are listed, they must all pass 
llvm-svn: 30476
 2006-09-19 00:41:36 +00:00
Chris Lattner
7498e29ca4 There! 
llvm-svn: 30473
 2006-09-18 22:41:07 +00:00
Chris Lattner
b54881691d Fix Regression/TableGen/2006-09-18-LargeInt.td 
llvm-svn: 30472
 2006-09-18 22:28:27 +00:00
Jim Laskey
86b2204935 Switching to NewNightlyTest.php 
llvm-svn: 30394
 2006-09-15 17:03:36 +00:00
Chris Lattner
8b65094e0f Relax this check. 
llvm-svn: 30381
 2006-09-14 23:54:24 +00:00
Jim Laskey
eda9265efc No longer used, and confuses maintainers 
llvm-svn: 30248
 2006-09-11 16:02:58 +00:00
Evan Cheng
f82eb13e3b 1) With X86 lowering change, the following can no longer happen since 
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).

llvm-svn: 30242
 2006-09-11 02:24:43 +00:00
Evan Cheng
9d17d65cc4 Generated isel should favors explicit constant operand (+2) over an operand with a predicate (+1). 
llvm-svn: 30180
 2006-09-08 07:26:39 +00:00
Chris Lattner
382ed3f1d9 Fix JIT encoding of two-addr instructions. 
llvm-svn: 30111
 2006-09-05 03:01:52 +00:00