0e0ee36f45
adjcallstack up/down clobbers the sp
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llvm-svn: 30910
2006-10-12 18:00:14 +00:00
d376e9f4ac
adjcallstackup/down clobbers the stack pointer
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llvm-svn: 30909
2006-10-12 17:57:58 +00:00
7374bc0577
mark adjcallstack up/down as clobbering and using the SP
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llvm-svn: 30908
2006-10-12 17:56:34 +00:00
adcaf294d7
Move the Imp tblgen class from the X86 backend to common code.
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llvm-svn: 30907
2006-10-12 17:49:27 +00:00
c040e53372
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
llvm-svn: 30906
2006-10-12 17:45:38 +00:00
b5cda3daa9
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.
llvm-svn: 30905
2006-10-12 17:42:56 +00:00
df2ccc395e
D'oh - need to use the rigth kind of store.
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llvm-svn: 30903
2006-10-12 15:22:24 +00:00
c935741b1d
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)
llvm-svn: 30902
2006-10-12 08:00:47 +00:00
40ec2bebf9
fix compilation failure of smg2000
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llvm-svn: 30900
2006-10-12 03:55:48 +00:00
86a012ab61
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.
llvm-svn: 30898
2006-10-12 02:34:07 +00:00
d7125583f7
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
77e030bca9
Replace custom dispatch code with two uses of InstVisitor. Improves
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compile-time performance.
llvm-svn: 30896
2006-10-12 02:02:44 +00:00
e415f196a3
Update tests.
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llvm-svn: 30895
2006-10-12 01:42:03 +00:00
d5fcfaa6da
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
llvm-svn: 30894
2006-10-11 22:09:58 +00:00
4b77688d14
new testcase
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llvm-svn: 30893
2006-10-11 22:07:38 +00:00
4090dc4703
ComplexPatterns sse_load_f32 and sse_load_f64 returns in / out chain operands.
...
llvm-svn: 30892
2006-10-11 21:06:01 +00:00
577ef7694e
Add properties to ComplexPattern.
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llvm-svn: 30891
2006-10-11 21:03:53 +00:00
2022c79d7f
Added properties such as SDNPHasChain to ComplexPattern.
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llvm-svn: 30890
2006-10-11 21:02:01 +00:00
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
Chris Lattner