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078ff41220
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Author SHA1 Message Date
Nick Lewycky
078ff41220 Replace custom dispatch code with two uses of InstVisitor. Improves 
compile-time performance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30896 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 02:02:44 +00:00
Evan Cheng
32159c13f9 Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30895 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 01:42:03 +00:00
Chris Lattner
4fe4f254ce Fold "zero extending vector loads" now that evan added the chain manip stuff. 
This compiles both tests in X86/vec_ss_load_fold.ll into:

_test1:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        minss LCPI1_2, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret

instead of:

_test1:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30894 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 22:09:58 +00:00
Chris Lattner
ffe945e1c7 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30893 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 22:07:38 +00:00
Evan Cheng
82a9164fb4 ComplexPatterns sse_load_f32 and sse_load_f64 returns in / out chain operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30892 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 21:06:01 +00:00
Evan Cheng
af9db75943 Add properties to ComplexPattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30891 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 21:03:53 +00:00
Evan Cheng
94b3040fef Added properties such as SDNPHasChain to ComplexPattern. 
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
Jim Laskey
7aed46c25b Alias analysis of TRUNCSTORE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30889 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 18:55:16 +00:00
Chris Lattner
bcc3f0a61d regenerate 
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 
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
f187bab7bb add test for mdef in a let 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30886 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 18:12:14 +00:00
Bill Wendling
82e2eea168 Clean-up of formatting and spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30885 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 18:00:22 +00:00
Jim Laskey
2d84c4c7b3 Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30884 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 17:52:19 +00:00
Jim Laskey
c2b19f3449 Handle aliasing of loadext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30883 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 17:47:52 +00:00
Jim Laskey
98dd175f86 Explict processor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30882 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 17:14:14 +00:00
Andrew Lenharth
b4eb092bcd Reduce the amount of state in the lowering code and drop old pattern ISel functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 16:24:51 +00:00
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