Commit Graph

26967 Commits

Author SHA1 Message Date
Jim Laskey
7ca56aff22 Fix regression in combiner alias analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30880 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 13:47:09 +00:00
Jim Laskey
5aec0b061c Make sure combiner alias analysis does it's thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 13:42:49 +00:00
Evan Cheng
2e49f090f9 Naming consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30878 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 07:10:22 +00:00
Evan Cheng
27b1bb999b Test case for the recently fixed FindModifiedNodeSlot bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30877 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 07:01:37 +00:00
Bill Wendling
3cd5ca6c72 Put code example inside of "doc_code" divisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30876 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 06:30:10 +00:00
Chris Lattner
d615ded96e Use cute tblgen tricks to make zap handling more powerful. Specifically,
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 05:13:56 +00:00
Chris Lattner
3d2da9a426 new testcase, this should turn into zap
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30874 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 05:10:19 +00:00
Andrew Lenharth
82c3d8f81a Jimptables working again on alpha.
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 04:29:42 +00:00
Chris Lattner
78feeb0460 Remove dead/redundant instructions. These are handled by ZAPNOTi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30872 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 04:12:39 +00:00
Chris Lattner
39e73f7c83 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.


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
2f239b9289 Both of these functions should turn into cmpbge instructions, even though
the second has an and of 254 not 255.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30870 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 03:59:48 +00:00
Chris Lattner
755480681c add two helper methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30869 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 03:58:02 +00:00
Chris Lattner
be8e72120d Split some code out into a new method. The generated code is exactly
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
Andrew Lenharth
d13ba8064d This entry is done. switched to the gcc way of doing things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30867 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 01:48:03 +00:00
Evan Cheng
9629abac79 FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper SelectionDAGCSEMap ID.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 01:47:58 +00:00
Chris Lattner
67afa13980 new testcase for zap generation, from the alpha readme
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30865 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 01:47:08 +00:00
Chris Lattner
8ca5afe4fc This has apparently been fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30864 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 01:44:46 +00:00
Chris Lattner
137d0ec3da Make the bugpoint reduction heuristics more effective. Patch submitted by
Domagoj Babic, thanks!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30863 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 21:42:25 +00:00
Rafael Espindola
493a7fc5c3 uint <-> double conversion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30862 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 20:38:57 +00:00
Evan Cheng
45aeccc1fd Also update getNodeLabel for LoadSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 20:11:26 +00:00
Evan Cheng
0ac1c6ad9a SDNode::dump should also print out extension type and VT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30860 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 20:05:10 +00:00
Rafael Espindola
667c349feb add fp sub
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 19:35:01 +00:00
Rafael Espindola
b47e1d033c add double <-> int conversion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30858 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 18:55:14 +00:00
Chris Lattner
55b5708b6b Fix another bug in extload promotion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 18:54:19 +00:00
Rafael Espindola
0d9fe764df compare doubles
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30856 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 16:33:47 +00:00
Rafael Espindola
fb6abd7dea add some tests for floating point compare
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30855 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 14:26:06 +00:00
Rafael Espindola
4b20fbc01d initial support for fp compares. Unordered compares not implemented yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30854 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 12:56:00 +00:00
Evan Cheng
62f2a3c7aa Fix a bug introduced by my LOAD/LOADX changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30853 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 07:51:21 +00:00
Evan Cheng
ccc4870d63 Add test case from PR940.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 04:33:46 +00:00
Evan Cheng
a275ecbd10 More isel time load folding checking for nodes that produce flag values.
See comment in CanBeFoldedBy() for detailed explanation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30851 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 01:46:56 +00:00
Evan Cheng
81c3845788 Comments; getChain(), getBasePtr(), etc. should return a SDOperand by value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30850 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10 01:44:58 +00:00
Evan Cheng
25fa8313d7 shufps with load folding is better than movaps; movsd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30849 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 22:42:31 +00:00
Evan Cheng
f2ea84aadc Don't go too crazy with these AddComplexity. Try matching shufps with load
folding first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30848 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 21:42:15 +00:00
Evan Cheng
23425f5c74 Don't convert to MOVLP if using shufps etc. may allow load folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30847 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 21:39:25 +00:00
Devang Patel
dc4c38279f Use FindProgramByName instead of FindExecutable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30846 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 21:16:05 +00:00
Evan Cheng
d3eea90a9b 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.


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
Evan Cheng
466685d41a Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30844 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 20:57:25 +00:00
Evan Cheng
24446e253a Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes.
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30843 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 20:55:20 +00:00
Devang Patel
9f5d48bcb1 Do error checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30842 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 20:20:13 +00:00
Chris Lattner
54e4c02d8e Remove a dead var noticed by Yorion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30841 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 20:12:37 +00:00
Rafael Espindola
ff7e63cf7a add some tests for floating point arithmetic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30840 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 19:15:17 +00:00
Andrew Lenharth
f2bdcb3187 Fix build error in gcc 3.4 and make more this general
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30839 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 19:05:44 +00:00
Devang Patel
3f0e5e2057 Use GetTemporaryDirectory. Fix http://llvm.org/bugs/show_bug.cgi?id=894
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30838 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 19:04:51 +00:00
Nick Lewycky
0376ade972 Fix usage example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30837 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 18:33:08 +00:00
Rafael Espindola
2dc0f2b55c add float -> double and double -> float conversion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30835 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:50:29 +00:00
Reid Spencer
f63697de04 Fix PR886:
The result of yyparse() was not being checked. When YYERROR or YYABORT is
called it causes yyparse() to return 1 to indicate the error. The code was
silently ignoring this situation because it previously expected either an
exception or a null ParserResult to indicate an error. The patch corrects
this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30834 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:36:59 +00:00
Chris Lattner
d68d2c312a xfail this until andrew has a chance to implement the alpha TM method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30833 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:34:40 +00:00
Rafael Espindola
2d8680a34b add a test for adds adcs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30832 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:30:15 +00:00
Chris Lattner
45d10470c9 Fix a bug pointed out by Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30831 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:28:13 +00:00
Rafael Espindola
ecdb9f93c4 add ADDS and ADCS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30830 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09 17:18:28 +00:00