a13b9c7aa4
Alias analysis of TRUNCSTORE.
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llvm-svn: 30889
2006-10-11 18:55:16 +00:00
c52dab5894
regenerate
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llvm-svn: 30888
2006-10-11 18:13:09 +00:00
9d9de698b5
Add support for let expressions around an mdef. This implements a new part
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of Regression/TableGen/MultiClass.td.
llvm-svn: 30887
2006-10-11 18:12:44 +00:00
ddf7347283
add test for mdef in a let
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llvm-svn: 30886
2006-10-11 18:12:14 +00:00
f21825f55a
Clean-up of formatting and spelling.
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llvm-svn: 30885
2006-10-11 18:00:22 +00:00
6a4c6d3a7a
Typo
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llvm-svn: 30884
2006-10-11 17:52:19 +00:00
0f7c328ae7
Handle aliasing of loadext.
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llvm-svn: 30883
2006-10-11 17:47:52 +00:00
5684eda9e8
Explict processor.
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llvm-svn: 30882
2006-10-11 17:14:14 +00:00
fa8cbfd8e8
Reduce the amount of state in the lowering code and drop old pattern ISel functions
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llvm-svn: 30881
2006-10-11 16:24:51 +00:00
08edf332ed
Fix regression in combiner alias analysis.
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llvm-svn: 30880
2006-10-11 13:47:09 +00:00
b41de440b5
Make sure combiner alias analysis does it's thing.
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llvm-svn: 30879
2006-10-11 13:42:49 +00:00
d35734bd1f
Naming consistency.
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llvm-svn: 30878
2006-10-11 07:10:22 +00:00
ac72dc81f4
Test case for the recently fixed FindModifiedNodeSlot bug.
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llvm-svn: 30877
2006-10-11 07:01:37 +00:00
34ab06769d
Put code example inside of "doc_code" divisions.
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llvm-svn: 30876
2006-10-11 06:30:10 +00:00
6487854b3f
Use cute tblgen tricks to make zap handling more powerful. Specifically,
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when the dag combiner simplifies an and mask, notice this and allow those bits
to be missing from the zap mask.
This compiles Alpha/zapnot4.ll into:
sll $16,3,$0
zapnot $0,3,$0
ret $31,($26),1
instead of:
ldah $0,1($31)
lda $0,-8($0)
sll $16,3,$1
and $1,$0,$0
ret $31,($26),1
It would be *really* nice to replace the hunk of code in the
AlphaISelDAGToDAG.cpp file that matches (and (srl (x, C), c2) into
(SRL (ZAPNOTi)) with a similar pattern, but I've spent enough time poking
at alpha. Make andrew will do this.
llvm-svn: 30875
2006-10-11 05:13:56 +00:00
a821fe2da1
new testcase, this should turn into zap
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llvm-svn: 30874
2006-10-11 05:10:19 +00:00
a6bbf33cbf
Jimptables working again on alpha.
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As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.
llvm-svn: 30873
2006-10-11 04:29:42 +00:00
9f86f7c2ab
Remove dead/redundant instructions. These are handled by ZAPNOTi
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llvm-svn: 30872
2006-10-11 04:12:39 +00:00
f405928e86
Special case tblgen generated code for patterns like (and X, 255) or (or X, 42).
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The dag/inst combiners often 'simplify' the masked value based on whether
or not the bits are live or known zero/one. This is good and dandy, but
often causes special case patterns to fail, such as alpha's CMPBGE pattern,
which looks like "(set GPRC:$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.
llvm-svn: 30871
2006-10-11 04:05:55 +00:00
ee0435680b
Both of these functions should turn into cmpbge instructions, even though
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the second has an and of 254 not 255.
llvm-svn: 30870
2006-10-11 03:59:48 +00:00
6df349676e
add two helper methods.
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llvm-svn: 30869
2006-10-11 03:58:02 +00:00
66fbbca1e7
Split some code out into a new method. The generated code is exactly
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identical, this is just a refactoring.
llvm-svn: 30868
2006-10-11 03:35:34 +00:00
4a57e2a6ed
This entry is done. switched to the gcc way of doing things.
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llvm-svn: 30867
2006-10-11 01:48:03 +00:00
2da4671e05
FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper SelectionDAGCSEMap ID.
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llvm-svn: 30866
2006-10-11 01:47:58 +00:00
291a868823
new testcase for zap generation, from the alpha readme
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llvm-svn: 30865
2006-10-11 01:47:08 +00:00
3d74556d74
This has apparently been fixed
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llvm-svn: 30864
2006-10-11 01:44:46 +00:00
8adfe927bb
Make the bugpoint reduction heuristics more effective. Patch submitted by
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Domagoj Babic, thanks!
llvm-svn: 30863
2006-10-10 21:42:25 +00:00
8429e1f6c3
uint <-> double conversion
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llvm-svn: 30862
2006-10-10 20:38:57 +00:00
7994aec7b5
Also update getNodeLabel for LoadSDNode.
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llvm-svn: 30861
2006-10-10 20:11:26 +00:00
fe858538c0
SDNode::dump should also print out extension type and VT.
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llvm-svn: 30860
2006-10-10 20:05:10 +00:00
b5f1ff336a
add fp sub
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llvm-svn: 30859
2006-10-10 19:35:01 +00:00
57d109fb08
add double <-> int conversion
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llvm-svn: 30858
2006-10-10 18:55:14 +00:00
8438429c96
Fix another bug in extload promotion.
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llvm-svn: 30857
2006-10-10 18:54:19 +00:00
d1a4ea41c9
compare doubles
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llvm-svn: 30856
2006-10-10 16:33:47 +00:00
639450ea83
add some tests for floating point compare
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llvm-svn: 30855
2006-10-10 14:26:06 +00:00
d15c892433
initial support for fp compares. Unordered compares not implemented yet
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llvm-svn: 30854
2006-10-10 12:56:00 +00:00
dc6a3aab71
Fix a bug introduced by my LOAD/LOADX changes.
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llvm-svn: 30853
2006-10-10 07:51:21 +00:00
6d37137e4f
Add test case from PR940.
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llvm-svn: 30852
2006-10-10 04:33:46 +00:00
61b8b43bbe
More isel time load folding checking for nodes that produce flag values.
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See comment in CanBeFoldedBy() for detailed explanation.
llvm-svn: 30851
2006-10-10 01:46:56 +00:00
e01ee43cdc
Comments; getChain(), getBasePtr(), etc. should return a SDOperand by value.
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llvm-svn: 30850
2006-10-10 01:44:58 +00:00
16488647d8
shufps with load folding is better than movaps; movsd.
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llvm-svn: 30849
2006-10-09 22:42:31 +00:00
57ccb6d372
Don't go too crazy with these AddComplexity. Try matching shufps with load
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folding first.
llvm-svn: 30848
2006-10-09 21:42:15 +00:00
e646abb7b6
Don't convert to MOVLP if using shufps etc. may allow load folding.
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llvm-svn: 30847
2006-10-09 21:39:25 +00:00
d90c2d7386
Use FindProgramByName instead of FindExecutable.
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llvm-svn: 30846
2006-10-09 21:16:05 +00:00
75a1b70da8
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.
llvm-svn: 30845
2006-10-09 21:02:17 +00:00
e71fe34d75
Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.
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llvm-svn: 30844
2006-10-09 20:57:25 +00:00
0a2a4b1fbe
Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes.
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Chain and address ptr remains as operands. SrcValue, extending mode, extending
VT (or rather loaded VT before extension) are now instance variables of
LoadSDNode.
Introduce load / store addressing modes to represent pre- and post-indexed
load and store. Also added an additional operand offset that is only used in
post-indexed mode (i.e. base ptr += offset after load/store).
Added alignment info (not yet used) and isVolatile fields.
llvm-svn: 30843
2006-10-09 20:55:20 +00:00
060c4857ca
Do error checking.
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llvm-svn: 30842
2006-10-09 20:20:13 +00:00
dfa8d9258a
Remove a dead var noticed by Yorion
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llvm-svn: 30841
2006-10-09 20:12:37 +00:00
4d03bf8f43
add some tests for floating point arithmetic
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llvm-svn: 30840
2006-10-09 19:15:17 +00:00
Jim Laskey