Chris Lattner
1f9360318d
Nuke PowerPCInstrFormats.h, its contents are dead. Remove the definitions
...
from the .td file that correspond to it
llvm-svn: 23736
2005-10-14 22:44:13 +00:00
Nate Begeman
3b6c2df603
Properly split f32 and f64 into separate register classes for scalar sse fp
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fixing a bunch of nasty hackery
llvm-svn: 23735
2005-10-14 22:06:00 +00:00
Nate Begeman
27cce12802
Remove an unnecsesary file. PPC32 and PPC64 share architected registers.
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We will decide with subtarget support whether we ever use an i64 register
class.
llvm-svn: 23734
2005-10-14 18:58:46 +00:00
Chris Lattner
664dd0c80e
add the integer truncate/extension operations
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llvm-svn: 23733
2005-10-14 06:40:20 +00:00
Chris Lattner
19cff97f32
Make sure targets depend on TargetSelectionDAG.td
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llvm-svn: 23732
2005-10-14 06:31:58 +00:00
Chris Lattner
102b6e76e6
These are now autogenerated
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llvm-svn: 23731
2005-10-14 06:26:29 +00:00
Chris Lattner
3aa7a188b9
Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
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type constraint. This lets tblgen realize that it doesn't need any dynamic
type checks for fextend/fround on PPC (and many other targets), because there
are only two fp types.
llvm-svn: 23730
2005-10-14 06:25:00 +00:00
Chris Lattner
28621890d9
Fairly serious rework of the typing code to add new int/fp lattice values.
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Overall, no functionality change yet though.
llvm-svn: 23729
2005-10-14 06:12:03 +00:00
Chris Lattner
c5dbaceaee
simplify the code a bit
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llvm-svn: 23728
2005-10-14 05:08:37 +00:00
Chris Lattner
35002513b5
Add patterns for FP round/extend
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llvm-svn: 23727
2005-10-14 04:55:50 +00:00
Chris Lattner
1a001d068a
add a new SDTCisOpSmallerThanOp type constraint, and implement fround/fextend in terms of it
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llvm-svn: 23726
2005-10-14 04:55:10 +00:00
Chris Lattner
d83bbd0f14
Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
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llvm-svn: 23725
2005-10-14 04:53:53 +00:00
Chris Lattner
81047cdfc0
Implement a couple of new (important) features.
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1. If an operation has to be int or fp and the target only supports one
int or fp type, relize that the op has to have that type.
2. If a target has operations on multiple types, do not emit matching code
for patterns involving those operators, since we do not emit the code to
check for them yet. This prevents PPC from generating FP ops currently.
Also move some code around into more logical places.
llvm-svn: 23724
2005-10-14 04:11:13 +00:00
Chris Lattner
ee8c8e4562
Do not let getLegalValueTypes return a list with duplicates in it
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llvm-svn: 23723
2005-10-14 03:54:49 +00:00
Nate Begeman
9c6b86dcb4
fold sext_in_reg, sext_in_reg where both have the same VT. This was
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popping up in Fourinarow.
llvm-svn: 23722
2005-10-14 01:29:07 +00:00
Chris Lattner
99b65b821a
Allow $
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llvm-svn: 23721
2005-10-14 01:28:34 +00:00
Nate Begeman
c206a2a32a
Relax the checking on zextload generation a bit, since as sabre pointed out
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you could be AND'ing with the result of a shift that shifts out all the
bits you care about, in addition to a constant.
Also, move over an add/sub_parts fold from legalize to the dag combiner,
where it works for things other than constants. Woot!
llvm-svn: 23720
2005-10-14 01:12:21 +00:00
Chris Lattner
26f6c4de3d
Fix errors when compiling with -pedantic
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llvm-svn: 23719
2005-10-14 00:33:05 +00:00
Chris Lattner
b2db3f50f2
Fix the trunc(load) case, finally allowing crafty and povray to pass
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llvm-svn: 23718
2005-10-13 22:10:05 +00:00
Chris Lattner
2563394c27
Fix some bugs in (sext (load x))
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llvm-svn: 23717
2005-10-13 21:52:31 +00:00
Chris Lattner
3fd6d9358e
When ExpandOp'ing a [SZ]EXTLOAD, make sure to remember that the chain
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is also legal. Add support for ExpandOp'ing raw EXTLOADs too.
llvm-svn: 23716
2005-10-13 21:44:47 +00:00
Chris Lattner
dc6e47231b
Implement PromoteOp for *EXTLOAD, allowing MallocBench/gs to Legalize
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llvm-svn: 23715
2005-10-13 20:07:41 +00:00
Nate Begeman
d155f7f1c2
Fix the remaining DAGCombiner issues pointed out by sabre. This should fix
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the remainder of the failures introduced by my patch last night.
llvm-svn: 23714
2005-10-13 18:34:58 +00:00
Chris Lattner
75447d2f8e
Fix a minor bug in the dag combiner that broke pcompress2 and some other
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tests.
llvm-svn: 23713
2005-10-13 18:16:34 +00:00
Patrick Meredith
120fb3b9ad
Updated to be less restrictive on what is matched
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llvm-svn: 23712
2005-10-13 17:31:30 +00:00
Nate Begeman
9a08d6fb43
Add support to Legalize for expanding i64 sextload/zextload into hi and lo
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parts. This should fix the crafty and signed long long unit test failure
on x86 last night.
llvm-svn: 23711
2005-10-13 17:15:37 +00:00
Jim Laskey
2d23e75ac5
Inhibit instructions from being pushed before function calls. This will
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minimize unnecessary spilling.
llvm-svn: 23710
2005-10-13 16:44:00 +00:00
Chris Lattner
11f7589eaa
apparently one of the makefile changes changed libprofile.so to profile.so
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llvm-svn: 23709
2005-10-13 16:34:24 +00:00
Patrick Meredith
ea6da36ab2
This script is used to remove nodes with the label %tmp(.#)* and all
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edges associated with said node from the dot files produced by
DSA.
llvm-svn: 23708
2005-10-13 16:26:50 +00:00
Chris Lattner
d8ed29bb67
Nate implemented this :)
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llvm-svn: 23707
2005-10-13 06:04:34 +00:00
Nate Begeman
c7e7c94db5
Move some Legalize functionality over to the DAGCombiner where it belongs.
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Kill some dead code.
llvm-svn: 23706
2005-10-13 03:11:28 +00:00
Nate Begeman
b49e7aa166
SimplifySelectCC is dead
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llvm-svn: 23705
2005-10-13 03:10:46 +00:00
Nate Begeman
b1d64c386b
Fix a potential bug with two combine-to's back to back that chris pointed
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out, where after the first CombineTo() call, the node the second CombineTo
wishes to replace may no longer exist.
Fix a very real bug with the truncated load optimization on little endian
targets, which do not need a byte offset added to the load.
llvm-svn: 23704
2005-10-12 23:18:53 +00:00
Nate Begeman
d97bb9d084
More cool stuff for the dag combiner. We can now finally handle things
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like turning:
_foo:
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
rlwinm r3, r2, 0, 16, 31
blr
into
_foo:
fctiwz f0,f1
stfd f0,-8(r1)
lhz r3,-2(r1)
blr
Also removed an unncessary constraint from sra -> srl conversion, which
should take care of hte only reason we would ever need to handle sra in
MaskedValueIsZero, AFAIK.
llvm-svn: 23703
2005-10-12 20:40:40 +00:00
Jim Laskey
2fe279f783
Finally committing to the new scheduler. Still -sched=none by default.
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llvm-svn: 23702
2005-10-12 18:29:35 +00:00
Jim Laskey
84b96c93e4
Added graphviz/gv support for MF.
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llvm-svn: 23700
2005-10-12 12:09:05 +00:00
Chris Lattner
2beb0862d5
this passes with the change in predicate
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llvm-svn: 23699
2005-10-11 18:42:26 +00:00
Chris Lattner
23ecce5c82
Fix (hopefully the last) issue where LSR is nondeterminstic. When pulling
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out CSE's of base expressions it could build a result whose order was
nondet.
llvm-svn: 23698
2005-10-11 18:41:04 +00:00
Chris Lattner
7effc54496
Fix another problem where LSR was being nondeterminstic. Also remove elements
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from the end of a vector instead of the beginning
llvm-svn: 23697
2005-10-11 18:30:57 +00:00
Chris Lattner
862a6ea0ac
lsr doesn't emit gep instructions anymore
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llvm-svn: 23696
2005-10-11 18:28:48 +00:00
Chris Lattner
1ec477da8f
Fix another lsr-is-nondeterministic case
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llvm-svn: 23695
2005-10-11 18:17:57 +00:00
Chris Lattner
21c3cf756f
Fix a powerpc crash on CodeGen/Generic/llvm-ct-intrinsics.ll
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llvm-svn: 23694
2005-10-11 17:56:34 +00:00
Chris Lattner
e6fcb88ad1
Add a canonicalization that got lost, fixing PowerPC/fold-li.ll:SUB
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llvm-svn: 23693
2005-10-11 06:07:15 +00:00
Chris Lattner
1441e42e56
clean up some corner cases
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llvm-svn: 23692
2005-10-10 23:00:08 +00:00
Chris Lattner
5308a566ba
Implement trivial DSE. If two stores are neighbors and store to the same
...
location, replace them with a new store of the last value. This occurs
in the same neighborhood in 197.parser, speeding it up about 1.5%
llvm-svn: 23691
2005-10-10 22:31:19 +00:00
Chris Lattner
1c60abe065
Add support for CombineTo, allowing the dag combiner to replace nodes with
...
multiple results.
Use this support to implement trivial store->load forwarding, implementing
CodeGen/PowerPC/store-load-fwd.ll. Though this is the most simple case and
can be extended in the future, it is still useful. For example, it speeds
up 197.parser by 6.2% by avoiding an LSU reject in xalloc:
stw r6, lo16(l5_end_of_array)(r2)
addi r2, r5, -4
stwx r5, r4, r2
- lwzx r5, r4, r2
- rlwinm r5, r5, 0, 0, 30
stwx r5, r4, r2
lwz r2, -4(r4)
ori r2, r2, 1
llvm-svn: 23690
2005-10-10 22:04:48 +00:00
Chris Lattner
8290d31c12
new testcase
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llvm-svn: 23689
2005-10-10 21:57:37 +00:00
Nate Begeman
703c8f57d6
Teach the DAGCombiner several new tricks, teaching it how to turn
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sext_inreg into zext_inreg based on the signbit (fires a lot), srem into
urem, etc.
llvm-svn: 23688
2005-10-10 21:26:48 +00:00
Chris Lattner
e4634f54f1
A testcase sitting in my tree
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llvm-svn: 23687
2005-10-10 21:21:36 +00:00
Chris Lattner
caed5bc79b
Fix comment
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llvm-svn: 23686
2005-10-10 16:52:03 +00:00