Chris Lattner
740c2e0799
adjcallstackup/down clobbers the stack pointer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30909 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 17:57:58 +00:00
Chris Lattner
1e5e97462b
mark adjcallstack up/down as clobbering and using the SP
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30908 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 17:56:34 +00:00
Chris Lattner
33e4869ba0
Move the Imp tblgen class from the X86 backend to common code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30907 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 17:49:27 +00:00
Chris Lattner
6ec3626be4
restore my previous patch, now that the X86 backend bug has been fixed:
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20061009/038518.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30906 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 17:45:38 +00:00
Chris Lattner
f18c074e1b
Mark ADJCALLSTACKUP/DOWN as clobbering ESP so that virtregmap will notice
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that it can't assume ESP is unmodified across the instrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30905 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 17:42:56 +00:00
Jim Laskey
3ad175bd70
D'oh - need to use the rigth kind of store.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30903 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 15:22:24 +00:00
Evan Cheng
b870100f2a
Backing out Chris' last commit. It's breaking llvm-gcc bootstrapping.
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It's turning:
movl -24(%ebp), %esp
subl $16, %esp
movl -24(%ebp), %ecx
into
movl -24(%ebp), %esp
subl $16, %esp
movl %esp, (%esp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30902 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 08:00:47 +00:00
Chris Lattner
f78ae9eb8a
fix compilation failure of smg2000
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30900 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 03:55:48 +00:00
Chris Lattner
f183cabba8
If we see a load from a stack slot into a physreg, consider it as providing
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the stack slot. This fixes PR943.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 02:34:07 +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
Nick Lewycky
078ff41220
Replace custom dispatch code with two uses of InstVisitor. Improves
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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.
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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.
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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
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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.
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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.
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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.
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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
Jim Laskey
7aed46c25b
Alias analysis of TRUNCSTORE.
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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
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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
f187bab7bb
add test for mdef in a let
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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.
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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
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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.
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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,
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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,($26),1
It would be *really* nice to replace the hunk of code in the
AlphaISelDAGToDAG.cpp file that matches (and (srl (x, C), c2) into
(SRL (ZAPNOTi)) with a similar pattern, but I've spent enough time poking
at alpha. Make andrew will do this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 05:13:56 +00:00
Chris Lattner
3d2da9a426
new testcase, this should turn into zap
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30874 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 05:10:19 +00:00
Andrew Lenharth
82c3d8f81a
Jimptables working again on alpha.
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As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 04:29:42 +00:00
Chris Lattner
78feeb0460
Remove dead/redundant instructions. These are handled by ZAPNOTi
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30872 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11 04:12:39 +00:00
Chris Lattner
39e73f7c83
Special case tblgen generated code for patterns like (and X, 255) or (or X, 42).
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The dag/inst combiners often 'simplify' the masked value based on whether
or not the bits are live or known zero/one. This is good and dandy, but
often causes special case patterns to fail, such as alpha's CMPBGE pattern,
which looks like "(set GPRC:$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
2f239b9289
Both of these functions should turn into cmpbge instructions, even though
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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.
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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
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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
Andrew Lenharth
d13ba8064d
This entry is done. switched to the gcc way of doing things.
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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.
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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
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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
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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
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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
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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.
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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.
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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
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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
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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.
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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