Chris Lattner
2332b9f16f
implement basic support for INSERT_VECTOR_ELT.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26849 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-19 01:17:20 +00:00
Chris Lattner
b2827b0901
Rename ConstantVec -> BUILD_VECTOR and VConstant -> VBUILD_VECTOR. Allow*BUILD_VECTOR to take variable inputs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26847 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-19 00:52:58 +00:00
Chris Lattner
23d564c11f
implement vector.ll:test_undef
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26845 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-19 00:20:20 +00:00
Chris Lattner
4794a6b6a0
Fix the remaining bugs in the vector expansion rework I commited yesterday.
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This fixes CodeGen/Generic/vector.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26843 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-19 00:07:49 +00:00
Chris Lattner
c7029805ef
Change the structure of lowering vector stuff. Note: This breaks some
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things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26840 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-18 01:44:44 +00:00
Chris Lattner
0c486bdc22
add a couple enum values
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26830 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-17 19:53:59 +00:00
Nate Begeman
81e8097377
Remove BRTWOWAY*
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Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26814 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-17 01:40:33 +00:00
Chris Lattner
6cb7004c34
Fix a problem fully scalarizing values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26811 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-16 23:05:19 +00:00
Chris Lattner
199862b749
Add support for CopyFromReg from vector values. Note: this doesn't support
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illegal vector types yet!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26799 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-16 19:57:50 +00:00
Chris Lattner
3c38449be6
Teach CreateRegForValue how to handle vector types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-16 19:51:18 +00:00
Chris Lattner
3a59358499
set TransformToType correctly for vector types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26797 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-16 19:50:01 +00:00
Chris Lattner
28b5b1c7b5
add support for vector->vector casts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26788 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-15 22:19:46 +00:00
Chris Lattner
06ac6ab938
Add a note, this code should be moved to the dag combiner.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26787 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-15 22:19:18 +00:00
Evan Cheng
30b37b5f29
Add LSR hooks.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 23:18:16 +00:00
Chris Lattner
ac0f8f2929
make sure dead token factor nodes are removed by the dag combiner.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 18:37:30 +00:00
Jim Laskey
f4321a3a43
Handle the removal of the debug chain.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 13:07:37 +00:00
Chris Lattner
947c28935d
Fold X+Y -> X|Y when safe. This implements:
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Regression/CodeGen/PowerPC/and_add.ll
a case that occurs with dynamic allocas of constant size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26727 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 06:51:27 +00:00
Chris Lattner
b6b17ffbc6
I can't convince myself that this is safe, remove the recursive call.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26725 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 06:42:16 +00:00
Chris Lattner
79dbea5ab4
add a couple of missing folds
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26724 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 06:26:26 +00:00
Chris Lattner
8f4191d619
For targets with FABS/FNEG support, lower copysign to an integer load,
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a select and FABS/FNEG.
This speeds up a trivial (aka stupid) copysign benchmark I wrote from 6.73s
to 2.64s, woo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26723 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 06:08:38 +00:00
Chris Lattner
fc3549ee8c
Don't advance the hazard recognizer when there are no hazards and no instructions
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to be emitted.
Don't add one to the latency of a completed instruction if the latency of the
op is 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26718 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-12 09:01:41 +00:00
Chris Lattner
b2215030d6
Chain operands aren't real uses: they don't require the full latency of the
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predecessor to finish before they can start.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26717 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-12 03:52:09 +00:00
Chris Lattner
53fbf2a8e8
As a pending queue data structure to keep track of instructions whose
...
operands have all issued, but whose results are not yet available. This
allows us to compile:
int G;
int test(int A, int B, int* P) {
return (G+A)*(B+1);
}
to:
_test:
lis r2, ha16(L_G$non_lazy_ptr)
addi r4, r4, 1
lwz r2, lo16(L_G$non_lazy_ptr)(r2)
lwz r2, 0(r2)
add r2, r2, r3
mullw r3, r2, r4
blr
instead of this, which has a stall between the lis/lwz:
_test:
lis r2, ha16(L_G$non_lazy_ptr)
lwz r2, lo16(L_G$non_lazy_ptr)(r2)
addi r4, r4, 1
lwz r2, 0(r2)
add r2, r2, r3
mullw r3, r2, r4
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26716 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-12 00:38:57 +00:00
Chris Lattner
8469031622
rename priorityqueue -> availablequeue. When a node is scheduled, remember
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which cycle it lands on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26714 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-11 22:44:37 +00:00
Chris Lattner
c1c078c170
Make CurrCycle a local var instead of an instance var
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26713 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-11 22:34:41 +00:00
Chris Lattner
7d82b00048
Move some methods around so that BU specific code is together, TD specific code
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is together, and direction independent code is together.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26712 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-11 22:28:35 +00:00
Chris Lattner
309cf8a713
merge preds/chainpreds -> preds set
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merge succs/chainsuccs -> succs set
This has no functionality change, simplifies the code, and reduces the size
of sunits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26711 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-11 22:24:20 +00:00
Evan Cheng
0937103368
Added a parameter to control whether Constant::getStringValue() would chop
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off the result string at the first null terminator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26704 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 23:52:03 +00:00
Chris Lattner
7d74d1145f
scrape out bits of llvm-db
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26701 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 22:48:19 +00:00
Chris Lattner
a34b6f8713
Move simple-selector-specific types to the simple selector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26693 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:51:18 +00:00
Chris Lattner
20a4921791
Simplify the interface to the schedulers, to not pass the selected heuristicin.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26692 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:49:12 +00:00
Chris Lattner
2f5806c2b3
Move some simple-sched-specific instance vars to the simple scheduler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26690 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:42:02 +00:00
Chris Lattner
1e433c59e0
prune #includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26689 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:37:35 +00:00
Chris Lattner
e76074ab89
move some simple scheduler methods into the simple scheduler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26688 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:35:21 +00:00
Chris Lattner
8c7ef0599c
Make EmitNode take a SDNode instead of a NodeInfo*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26687 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:28:36 +00:00
Chris Lattner
df3750642a
Move the VRBase field from NodeInfo to being a separate, explicit, map.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26686 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:25:12 +00:00
Chris Lattner
8d41651da7
no need to build groups anymore
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26684 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:15:58 +00:00
Chris Lattner
b2042e31a7
Create SUnits directly from the SelectionDAG.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26683 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 07:13:32 +00:00
Chris Lattner
be24e5996c
Push PrepareNodeInfo/IdentifyGroups down the inheritance hierarchy
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26682 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 06:34:51 +00:00
Chris Lattner
da4ff69153
Teach the latency scheduler some new tricks. In particular, to break ties,
...
keep track of a sense of "mobility", i.e. how many other nodes scheduling one
node will free up. For something like this:
float testadd(float *X, float *Y, float *Z, float *W, float *V) {
return (*X+*Y)*(*Z+*W)+*V;
}
For example, this makes us schedule *X then *Y, not *X then *Z. The former
allows us to issue the add, the later only lets us issue other loads.
This turns the above code from this:
_testadd:
lfs f0, 0(r3)
lfs f1, 0(r6)
lfs f2, 0(r4)
lfs f3, 0(r5)
fadds f0, f0, f2
fadds f1, f3, f1
lfs f2, 0(r7)
fmadds f1, f0, f1, f2
blr
into this:
_testadd:
lfs f0, 0(r6)
lfs f1, 0(r5)
fadds f0, f1, f0
lfs f1, 0(r4)
lfs f2, 0(r3)
fadds f1, f2, f1
lfs f2, 0(r7)
fmadds f1, f1, f0, f2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26680 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 05:51:05 +00:00
Chris Lattner
f83a47d905
add an aggregate method for reinserting scheduled nodes, add a callback for
...
priority impls that want to be notified when a node is scheduled
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26678 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 04:32:49 +00:00
Jeff Cohen
9630d271c5
Fix VC++ build breakage.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26676 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-10 03:57:45 +00:00
Chris Lattner
59bcce5ae5
remove dbg_declare, it's not used yet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26659 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 20:02:42 +00:00
Chris Lattner
8c84f3f0df
remove temporary option
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26646 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 17:31:22 +00:00
Chris Lattner
571340633f
yes yes, enabled debug output is bad
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26637 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 07:39:25 +00:00
Chris Lattner
6a4b70bbcf
switch the t-d scheduler to use a really dumb and trivial critical path
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latency priority function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26636 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 07:38:27 +00:00
Chris Lattner
477ef6d8cb
Pull latency information for target instructions out of the latency tables. :)
...
Only enable this with -use-sched-latencies, I'll enable it by default with a
clean nightly tester run tonight.
PPC is the only target that provides latency info currently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26634 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 07:15:18 +00:00
Chris Lattner
e70f671b97
don't copy all itinerary data
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26633 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 07:13:00 +00:00
Chris Lattner
0324ba8f02
PriorityQueue is an instance var, use it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26632 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 06:48:37 +00:00
Chris Lattner
e87c5c8088
add some comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26631 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 06:37:29 +00:00
Chris Lattner
e32178dd32
Refactor the priority mechanism one step further: now that it is a separate
...
class, sever its implementation from the interface. Now we can provide new
implementations of the same interface (priority computation) without touching
the scheduler itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26630 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 06:35:14 +00:00
Jim Laskey
21b6c9d647
Get rid of the multiple copies of getStringValue. Now a Constant:: method.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26616 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 18:11:07 +00:00
Chris Lattner
49eee4a26f
Split the priority function computation and priority queue management out
...
of the ScheduleDAGList class into a new SchedulingPriorityQueue class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26613 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 05:18:27 +00:00
Chris Lattner
c45a59bb32
switch from an explicitly managed list of SUnits to a simple vector of sunits
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26612 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:54:34 +00:00
Chris Lattner
6a67b3a4e6
Shrinkify some fields, fit to 80 columns
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26611 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:41:06 +00:00
Chris Lattner
6b24af87e6
revert the previous patch, didn't mean to check it in yet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26610 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:39:05 +00:00
Chris Lattner
5874f82564
remove "Slot", it is dead
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26609 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:37:58 +00:00
Chris Lattner
b0d21ef20c
Change the interface for getting a target HazardRecognizer to be more clean.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:25:59 +00:00
Chris Lattner
b2d635803d
Fix some formatting, when looking for hazards, prefer target nodes over
...
things like copyfromreg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26586 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 05:40:43 +00:00
Chris Lattner
6af7ef8da8
update file comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26573 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 17:58:04 +00:00
Evan Cheng
adc5e5c85f
Remove some code that doesn't make sense
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26572 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 07:31:44 +00:00
Evan Cheng
6b36ce9202
Remove SUnit::Priority1: it is re-calculated on demand as number of live
...
range to be generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26570 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 06:08:54 +00:00
Chris Lattner
03fc53c174
Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where
...
targets can implement them. Make the top-down scheduler non-g5-specific.
Remove the old testing hazard recognizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26569 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 00:22:00 +00:00
Chris Lattner
67727308fa
Comment fixes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26567 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:59:20 +00:00
Chris Lattner
3c232c83be
Don't depend on the C99 copysign function, implement it ourselves.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26566 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:57:58 +00:00
Chris Lattner
a93dfcd40a
When a hazard recognizer needs noops to be inserted, do so. This represents
...
noops as null pointers in the instruction sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26564 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:51:47 +00:00
Chris Lattner
6cc3f0a774
Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between
...
copyfromreg nodes. Clearly useful!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26559 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:13:56 +00:00
Chris Lattner
ad0f78ace2
Add basic hazard recognizer support. noop insertion isn't complete yet though.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26558 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 22:45:01 +00:00
Jeff Cohen
3d68e15c20
Fix VC++ compilation error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26554 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 21:43:37 +00:00
Chris Lattner
a5de484bc7
Split the list scheduler into top-down and bottom-up pieces. The priority
...
function of the top-down scheduler are completely bogus currently, and
having (future) PPC specific in this file is also wrong, but this is a
small incremental step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26552 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 21:10:33 +00:00
Chris Lattner
41f5ea0665
Move the available queue to being inside the ListSchedule method, since it
...
bounds its lifetime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26550 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 20:21:55 +00:00
Chris Lattner
cac7059d0f
Reinstate this now that the offending opposite xform has been removed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 19:53:55 +00:00
Chris Lattner
c1d9f1de41
Do not fold (add (shl x, c1), (shl c2, c1)) -> (shl (add x, c2), c1),
...
we want to canonicalize the other way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26547 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 19:52:57 +00:00
Chris Lattner
5267651057
print arbitrary constant pool entries
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26545 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 09:38:03 +00:00
Evan Cheng
9176b0169c
Back out fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2) for now.
...
It's causing an infinite loop compiling ldecod on x86 / Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 07:30:16 +00:00
Chris Lattner
12d830346b
Add some simple copysign folds
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26543 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 05:30:57 +00:00
Chris Lattner
a09f848c11
Codegen copysign[f] into a FCOPYSIGN node
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 05:09:38 +00:00
Chris Lattner
a1deca3cd6
fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2)
...
fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2)
This allows us to compile CodeGen/PowerPC/addi-reassoc.ll into:
_test1:
slwi r2, r4, 4
add r2, r2, r3
lwz r3, 36(r2)
blr
_test2:
mulli r2, r4, 5
add r2, r2, r3
lbz r2, 11(r2)
extsb r3, r2
blr
instead of:
_test1:
addi r2, r4, 2
slwi r2, r2, 4
add r2, r3, r2
lwz r3, 4(r2)
blr
_test2:
addi r2, r4, 2
mulli r2, r2, 5
add r2, r3, r2
lbz r2, 1(r2)
extsb r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-04 23:33:26 +00:00
Evan Cheng
3e1ce5a44d
Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26504 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 07:01:07 +00:00
Evan Cheng
33143dce15
Number of NodeTypes now exceeds 128.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26503 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 06:58:59 +00:00
Evan Cheng
bfa284f697
SDOperand::isOperand should not be a forwarding. It must check *this against N's operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26502 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 06:42:32 +00:00
Evan Cheng
80d8eaae05
Added isOperand(N): true if this is an operand of N
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26501 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 06:24:54 +00:00
Evan Cheng
fb43331226
A bit more tweaking
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26500 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 06:23:43 +00:00
Jeff Cohen
d84525480a
Fix VC++ compilation errors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26498 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 03:25:07 +00:00
Chris Lattner
41edaa0529
remove the read/write port/io intrinsics.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 00:19:58 +00:00
Chris Lattner
03dd465215
Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving
...
PR709, and paving the way for future progress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26476 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 00:00:25 +00:00
Evan Cheng
86ec7d1d07
- Fixed some priority calculation bugs that were causing bug 478. Among them:
...
a predecessor appearing more than once in the operand list was counted as
multiple predecessor; priority1 should be updated during scheduling;
CycleBound was updated after the node is inserted into priority queue; one
of the tie breaking condition was flipped.
- Take into consideration of two address opcodes. If a predecessor is a def&use
operand, it should have a higher priority.
- Scheduler should also favor floaters, i.e. nodes that do not have real
predecessors such as MOV32ri.
- The scheduling fixes / tweaks fixed bug 478:
.text
.align 4
.globl _f
_f:
movl 4(%esp), %eax
movl 8(%esp), %ecx
movl %eax, %edx
imull %ecx, %edx
imull %eax, %eax
imull %ecx, %ecx
addl %eax, %ecx
leal (%ecx,%edx,2), %eax
ret
It is also a slight performance win (1% - 3%) for most tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26470 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-02 21:38:29 +00:00
Chris Lattner
1ec05d1bb4
Fix CodeGen/Generic/2006-03-01-dagcombineinfloop.ll, an infinite loop
...
in the dag combiner on 176.gcc on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26459 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 21:47:21 +00:00
Chris Lattner
b2742f4a26
Fix a typo evan noticed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26454 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 19:55:35 +00:00
Chris Lattner
2466472a2b
Add support for target-specific dag combines
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26443 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 04:53:38 +00:00
Chris Lattner
00ffed0468
Add interfaces for targets to provide target-specific dag combiner optimizations.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26442 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 04:52:55 +00:00
Chris Lattner
5750df9d69
Add a new AddToWorkList method, start using it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26441 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 04:03:14 +00:00
Chris Lattner
0b1a85f110
Pull shifts by a constant through multiplies (a form of reassociation),
...
implementing Regression/CodeGen/X86/mul-shift-reassoc.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26440 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 03:44:24 +00:00
Evan Cheng
860771d2d8
Vector ops lowering.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26436 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 01:09:54 +00:00
Evan Cheng
1ab7d859cf
- Added VConstant as an abstract version of ConstantVec.
...
- All abstrct vector nodes must have # of elements and element type as their
first two operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26432 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 00:51:13 +00:00
Chris Lattner
35a9f5a241
Compile:
...
unsigned foo4(unsigned short *P) { return *P & 255; }
unsigned foo5(short *P) { return *P & 255; }
to:
_foo4:
lbz r3,1(r3)
blr
_foo5:
lbz r3,1(r3)
blr
not:
_foo4:
lhz r2, 0(r3)
rlwinm r3, r2, 0, 24, 31
blr
_foo5:
lhz r2, 0(r3)
rlwinm r3, r2, 0, 24, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26419 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-28 06:49:37 +00:00
Chris Lattner
15045b6973
Fold "and (LOAD P), 255" -> zextload. This allows us to compile:
...
unsigned foo3(unsigned *P) { return *P & 255; }
as:
_foo3:
lbz r3, 3(r3)
blr
instead of:
_foo3:
lwz r2, 0(r3)
rlwinm r3, r2, 0, 24, 31
blr
and:
unsigned short foo2(float a) { return a; }
as:
_foo2:
fctiwz f0, f1
stfd f0, -8(r1)
lhz r3, -2(r1)
blr
instead of:
_foo2:
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
rlwinm r3, r2, 0, 16, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26417 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-28 06:35:35 +00:00
Chris Lattner
71d9ebcbc1
fold (sra (sra x, c1), c2) -> (sra x, c1+c2)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26416 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-28 06:23:04 +00:00
Chris Lattner
22873462c9
Add support for output memory constraints.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26410 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 23:45:39 +00:00
Chris Lattner
a6bc5a4d21
Implement bit propagation through sub nodes, this (re)implements
...
PowerPC/div-2.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26392 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 01:00:42 +00:00
Chris Lattner
2d2536c9d7
remove some completed notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26390 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 00:39:31 +00:00
Chris Lattner
81cd35586f
Check RHS simplification before LHS simplification to avoid infinitely looping
...
on PowerPC/small-arguments.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26389 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 00:36:27 +00:00
Chris Lattner
5f0c658aa4
Just like we use the RHS of an AND to simplify the LHS, use the LHS to
...
simplify the RHS. This allows for the elimination of many thousands of
ands from multisource, and compiles CodeGen/PowerPC/and-elim.ll:test2
into this:
_test2:
srwi r2, r3, 1
xori r3, r2, 40961
blr
instead of this:
_test2:
rlwinm r2, r3, 31, 17, 31
xori r2, r2, 40961
rlwinm r3, r2, 0, 16, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26388 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 00:22:28 +00:00
Chris Lattner
ec665151b8
Add a bunch of missed cases. Perhaps the most significant of which is that
...
assertzext produces zero bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26386 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-26 23:36:02 +00:00
Evan Cheng
38b7327ec0
Print ConstantPoolSDNode offset field.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26381 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-26 08:36:57 +00:00
Evan Cheng
404cb4f9fa
Added an offset field to ConstantPoolSDNode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26371 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-25 09:54:52 +00:00
Chris Lattner
daf6bc6347
Pass all the flags to the asm printer, not just the # operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26362 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 19:50:58 +00:00
Chris Lattner
fd6d282a71
rename NumOps -> NumVals to avoid shadowing a NumOps var in an outer scope.
...
Add support for addressing modes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26361 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 19:18:20 +00:00
Chris Lattner
ed18b6896e
Refactor operand adding out to a new AddOperand method
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26358 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 18:54:03 +00:00
Jeff Cohen
7e88103cde
Get VC++ building again.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26351 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 02:52:40 +00:00
Chris Lattner
0e43f2ba11
Implement (most of) selection of inline asm memory operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26350 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 02:13:54 +00:00
Chris Lattner
87bc3bd121
Lower C_Memory operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26346 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 01:11:24 +00:00
Chris Lattner
2b7401e28e
Recognize memory operand codes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26345 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 01:10:46 +00:00
Chris Lattner
9f6637db10
Fix an endianness problem on big-endian targets with expanded operands
...
to inline asms. Mark some methods const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26334 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-23 20:06:57 +00:00
Chris Lattner
c3a9f8d31c
Record all of the expanded registers in the DAG and machine instr, fixing
...
several bugs in inline asm expanded operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26332 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-23 19:21:04 +00:00
Chris Lattner
9b6fb5de49
This fixes a couple of problems with expansion
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26318 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-22 23:09:03 +00:00
Chris Lattner
b3befd41b4
Don't return registers from register classes that aren't legal.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26317 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-22 23:00:51 +00:00
Chris Lattner
864635ad7b
Change a whole bunch of code to be built around RegsForValue instead of
...
a single register number. This fully implements promotion for inline asms,
expand is close but not quite right yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26316 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-22 22:37:12 +00:00
Chris Lattner
1efa40f6a4
split register class handling from explicit physreg handling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26308 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-22 00:56:39 +00:00
Chris Lattner
0f0b7d4927
Adjust to changes in getRegForInlineAsmConstraint prototype
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26306 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-21 23:12:12 +00:00
Chris Lattner
4217ca8dc1
Updates to match change of getRegForInlineAsmConstraint prototype
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26305 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-21 23:11:00 +00:00
Chris Lattner
7d20d39009
Fix a problem Nate and Duraid reported where simplifying nodes can cause
...
them to get ressurected, in which case, deleting the undead nodes is
unfriendly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26291 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-20 06:51:04 +00:00
Chris Lattner
dca7abed91
Fix a problem on itanium with memset. The value to set has been promoted to
...
i64 before this code, so zero_ext doesn't work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26290 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-20 06:38:35 +00:00
Nate Begeman
003a272319
Add a fold for add that exchanges it with a constant shift if possible, so
...
that the shift may be more easily folded into other operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26286 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-18 02:43:25 +00:00
Nate Begeman
b0d04a7dea
Add checks to make sure we don't create bogus extend nodes, and fix a bug
...
where we were doing exactly that which was causing failures on x86 and
alpha.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26284 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-18 02:40:58 +00:00
Chris Lattner
012f241987
Fix a tricky issue in the SimplifyDemandedBits code where CombineTo wasn't
...
exactly the API we wanted to call into. This fixes the crash on crafty last
night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26269 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 21:58:01 +00:00
Nate Begeman
fb7217bea3
Clean up DemandedBitsAreZero interface
...
Make more use of the new mask helpers in valuetypes.h
Combine (sra (srl x, c1), c1) -> sext_inreg if legal
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26263 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 19:54:08 +00:00
Nate Begeman
cd6a6ed0a9
Don't expand sdiv by power of two before legalize, since it will likely
...
generate illegal nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26261 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 07:26:20 +00:00
Nate Begeman
551bf3f800
kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
...
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 05:43:56 +00:00
Chris Lattner
25125697fb
Fix another miscompilation exposed by lencode, where we lowered i64->f32
...
conversions to __floatdidf instead of __floatdisf on targets that support
f32 but not i64 (e.g. sparc).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 04:32:33 +00:00
Jeff Cohen
5755b17044
Fix bug noticed by VC++.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 02:12:18 +00:00
Evan Cheng
cffbb5174f
Dumb bug. Code sees a memcpy from X+c so it increments src offset. But it
...
turns out not to point to a constant string but it forgot change the offset
back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26242 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-16 23:11:42 +00:00
Nate Begeman
368e18d56a
Rework the SelectionDAG-based implementations of SimplifyDemandedBits
...
and ComputeMaskedBits to match the new improved versions in instcombine.
Tested against all of multisource/benchmarks on ppc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26238 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-16 21:11:51 +00:00
Evan Cheng
298ebf2bd8
If the false case is the current basic block, then this is a self loop.
...
We do not want to emit "Loop: ... brcond Out; br Loop", as it adds an extra
instruction in the loop. Instead, invert the condition and emit
"Loop: ... br!cond Loop; br Out.
Generalize the fix by moving it from PPCDAGToDAGISel to SelectionDAGLowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26231 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-16 08:27:56 +00:00
Chris Lattner
8f4880be66
Lowering of sdiv X, pow2 was broken, this fixes it. This patch is written
...
by Nate, I'm just committing it for him.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-16 08:02:36 +00:00
Evan Cheng
a47876d87a
Remove an unused function parameter.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26221 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15 22:12:35 +00:00
Evan Cheng
74d0aa9a4b
Turn a memcpy from string constant into a series of stores of constant values.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26219 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15 21:59:04 +00:00
Jim Laskey
d0e58e36a9
Should not combine ISD::LOCATIONs until we have scheme to remove from
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MachineDebugInfo tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26216 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15 19:34:44 +00:00
Evan Cheng
c080d6fb3d
Lower memcpy with small constant size operand into a series of load / store
...
ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26195 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15 01:54:51 +00:00
Evan Cheng
dea7245997
Doh again!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26188 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 23:05:54 +00:00
Evan Cheng
c4f8eee054
Keep to < 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26177 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 20:12:38 +00:00
Evan Cheng
ac940ab1bf
Missed a break so memcpy cases fell through to memset. Doh.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26176 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 19:45:56 +00:00
Evan Cheng
80e89d7d6c
Fixed a build breakage.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26175 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 09:11:59 +00:00
Evan Cheng
a03a5dc7ce
Rename maxStoresPerMemSet to maxStoresPerMemset, etc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26174 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 08:38:30 +00:00
Evan Cheng
1db92f947c
Expand memset dst, c, size to a series of stores if size falls below the
...
target specific theshold, e.g. 16 for x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26171 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 08:22:34 +00:00
Chris Lattner
06a248c9b3
now that libcalls don't suck, we can remove this hack
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26164 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 05:39:35 +00:00
Chris Lattner
4b653a0405
Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)
...
create these nodes with flag results. Remember that we legalized them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 00:55:02 +00:00
Jim Laskey
d96185aa62
Rename to better reflect usage (current and planned.)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26145 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-13 12:50:39 +00:00
Chris Lattner
6831a81599
Completely rewrite libcall insertion by the legalizer, providing the
...
following handy-dandy properties:
1. it is always correct now
2. it is much faster than before
3. it is easier to understand
This implementation builds off of the recent simplifications of the
legalizer that made it single-pass instead of iterative.
This fixes JM/lencod, JM/ldecod, and
CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26144 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-13 09:18:02 +00:00
Jim Laskey
ce72b1755f
Reorg for integration with gcc4. Old style debug info will not be passed though
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to SelIDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-11 01:01:30 +00:00
Evan Cheng
fae9f1cb34
Added SelectionDAG::InsertISelMapEntry(). This is used to workaround the gcc
...
problem where it inline the map insertion call too aggressively. Before this
change it was producing a frame size of 24k for Select_store(), now it's down
to 10k (by calling this method rather than calling the map insertion operator).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26094 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-09 22:11:03 +00:00
Evan Cheng
6ae46c4c87
More changes to reduce frame size.
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Move all getTargetNode() out of SelectionDAG.h into SelectionDAG.cpp. This
prevents them from being inlined.
Change getTargetNode() so they return SDNode * instead of SDOperand to prevent
copying. It should also help compilation speed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26083 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-09 07:15:23 +00:00
Chris Lattner
948d9668a7
Make MachineConstantPool entries alignments explicit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26071 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-09 02:23:13 +00:00
Chris Lattner
3391bcd434
Compile this:
...
xori r6, r2, 1
rlwinm r6, r6, 0, 31, 31
cmpwi cr0, r6, 0
bne cr0, LBB1_3 ; endif
to this:
rlwinm r6, r2, 0, 31, 31
cmpwi cr0, r6, 0
beq cr0, LBB1_3 ; endif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26047 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-08 02:13:15 +00:00
Nate Begeman
be71442292
Back out previous commit, it isn't safe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:23:00 +00:00
Nate Begeman
bab9239d05
fold c1 << (x + c2) into (c1 << c2) << x. fix a warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26005 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:07:24 +00:00
Nate Begeman
c031e33b68
Handle urem by shifted powers of 2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26001 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:36:48 +00:00
Nate Begeman
fb5e4bdded
handle combining A / (B << N) into A >>u (log2(B)+N) when B is a power of 2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26000 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:20:23 +00:00
Evan Cheng
4ee6211258
* Added SDNode::isOnlyUse().
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* Fix hasNUsesOfValue(), it should be const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25990 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:29:23 +00:00
Jeff Cohen
f3afef3b3a
Fix VC++ warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25975 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-04 16:20:31 +00:00
Evan Cheng
cccf1232a6
Get rid of some memory leaks identified by Valgrind
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25960 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-04 06:49:00 +00:00
Chris Lattner
dc19b70d24
Add initial support for immediates. This allows us to compile this:
...
int %rlwnm(int %A, int %B) {
%C = call int asm "rlwnm $0, $1, $2, $3, $4", "=r,r,r,n,n"(int %A, int %B, int 4, int 17)
ret int %C
}
into:
_rlwnm:
or r2, r3, r3
or r3, r4, r4
rlwnm r2, r2, r3, 4, 17 ;; note the immediates :)
or r3, r2, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25955 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-04 02:26:14 +00:00
Chris Lattner
3d81fee851
Initial early support for non-register operands, like immediates
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25952 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-04 02:16:44 +00:00
Chris Lattner
eb8146b5ee
implementation of some methods for inlineasm
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25951 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-04 02:13:02 +00:00
Nate Begeman
244d1dccd1
Implement some feedback from sabre
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25946 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 22:38:07 +00:00
Nate Begeman
de99629e2a
Add a framework for eliminating instructions that produces undemanded bits.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25945 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 22:24:05 +00:00
Chris Lattner
7632e2beb4
remove some #ifdef'd out code, which should properly be in the dag combiner anyway.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 20:13:59 +00:00
Chris Lattner
eefae25034
remove dead fn
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25935 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 06:51:34 +00:00
Nate Begeman
cd4d58cef1
Add common code for reassociating ops in the dag combiner
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25934 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 06:46:56 +00:00
Evan Cheng
9fda2f9106
Added case HANDLENODE to getOperationName().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25920 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 01:33:01 +00:00
Chris Lattner
3603cd62ae
Turn any_extend nodes into zero_extend nodes when it allows us to remove an
...
and instruction. This allows us to compile stuff like this:
bool %X(int %X) {
%Y = add int %X, 14
%Z = setne int %Y, 12345
ret bool %Z
}
to this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
ret
instead of this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
andl $1, %eax
ret
This occurs quite a bit with the X86 backend. For example, 25 times in
lambda, 30 times in 177.mesa, 14 times in galgel, 70 times in fma3d,
25 times in vpr, several hundred times in gcc, ~45 times in crafty,
~60 times in parser, ~140 times in eon, 110 times in perlbmk, 55 on gap,
16 times on bzip2, 14 times on twolf, and 1-2 times in many other SPEC2K
programs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25901 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 07:17:31 +00:00
Chris Lattner
9a06cce0f2
Implement MaskedValueIsZero for ANY_EXTEND nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25900 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:43:15 +00:00
Chris Lattner
b3ddfc42af
add two dag combines:
...
(C1-X) == C2 --> X == C1-C2
(X+C1) == C2 --> X == C2-C1
This allows us to compile this:
bool %X(int %X) {
%Y = add int %X, 14
%Z = setne int %Y, 12345
ret bool %Z
}
into this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
andl $1, %eax
ret
not this:
_X:
movl $14, %eax
addl 4(%esp), %eax
cmpl $12345, %eax
setne %al
movzbl %al, %eax
andl $1, %eax
ret
Testcase here: Regression/CodeGen/X86/compare-add.ll
nukage of the and coming up next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:36:13 +00:00
Chris Lattner
1e8791d790
make -debug output less newliney
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25895 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:38:08 +00:00
Chris Lattner
2223aea6ed
Implement matching constraints. We can now say things like this:
...
%C = call int asm "xyz $0, $1, $2, $3", "=r,r,r,0"(int %A, int %B, int 4)
and get:
xyz r2, r3, r4, r2
note that the r2's are pinned together. Yaay for 2-address instructions.
2342 ----------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25893 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:25:23 +00:00
Nate Begeman
da06e9e665
*** empty log message ***
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 19:05:15 +00:00
Chris Lattner
4e4b576e2e
Implement simple register assignment for inline asms. This allows us to compile:
...
int %test(int %A, int %B) {
%C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B)
ret int %C
}
into:
(0x8906130, LLVM BB @0x8902220):
%r2 = OR4 %r3, %r3
%r3 = OR4 %r4, %r4
INLINEASM <es:xyz $0, $1, $2>, %r2<def>, %r2, %r3
%r3 = OR4 %r2, %r2
BLR
which asmprints as:
_test:
or r2, r3, r3
or r3, r4, r4
xyz $0, $1, $2 ;; need to print the operands now :)
or r3, r2, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25878 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 18:59:47 +00:00
Nate Begeman
750ac1bdfa
Fix some of the stuff in the PPC README file, and clean up legalization
...
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 07:19:44 +00:00
Chris Lattner
a55079a5cc
Beef up the interface to inline asm constraint parsing, making it more general, useful, and easier to use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:29:47 +00:00
Chris Lattner
2cc2f66c25
adjust to changes in InlineAsm interface. Fix a few minor bugs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25865 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:28:23 +00:00
Evan Cheng
b8973bd8f5
Allow the specification of explicit alignments for constant pool entries.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25855 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:23:14 +00:00
Evan Cheng
59ad781e01
Allow custom lowering of fabs. I forgot to check in this change which
...
caused several test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 18:14:25 +00:00
Chris Lattner
19c5c4cca9
Only insert an AND when converting from BR_COND to BRCC if needed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25832 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 05:04:52 +00:00
Chris Lattner
6656dd1a78
Handle physreg input/outputs. We now compile this:
...
int %test_cpuid(int %op) {
%B = alloca int
%C = alloca int
%D = alloca int
%A = call int asm "cpuid", "=eax,==ebx,==ecx,==edx,eax"(int* %B, int* %C, int* %D, int %op)
%Bv = load int* %B
%Cv = load int* %C
%Dv = load int* %D
%x = add int %A, %Bv
%y = add int %x, %Cv
%z = add int %y, %Dv
ret int %z
}
to this:
_test_cpuid:
sub %ESP, 16
mov DWORD PTR [%ESP], %EBX
mov %EAX, DWORD PTR [%ESP + 20]
cpuid
mov DWORD PTR [%ESP + 8], %ECX
mov DWORD PTR [%ESP + 12], %EBX
mov DWORD PTR [%ESP + 4], %EDX
mov %ECX, DWORD PTR [%ESP + 12]
add %EAX, %ECX
mov %ECX, DWORD PTR [%ESP + 8]
add %EAX, %ECX
mov %ECX, DWORD PTR [%ESP + 4]
add %EAX, %ECX
mov %EBX, DWORD PTR [%ESP]
add %ESP, 16
ret
... note the proper register allocation. :)
it is unclear to me why the loads aren't folded into the adds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25827 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 02:03:41 +00:00
Chris Lattner
73e142f2b6
Fix a bug in my legalizer reworking that caused the X86 backend to not get
...
a chance to custom legalize setcc, which broke a bunch of C++ Codes.
Testcase here: CodeGen/X86/2006-01-30-LongSetcc.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25821 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 22:43:50 +00:00
Chris Lattner
0e753d617b
don't insert an and node if it isn't needed here, this can prevent folding
...
of lowered target nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25804 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 04:22:28 +00:00
Chris Lattner
c6fd6cd65c
Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25803 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 04:09:27 +00:00
Chris Lattner
5c413bc451
pass the address of MaskedValueIsZero into isMaskedValueZeroForTargetNode,
...
to permit recursion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25799 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 03:49:37 +00:00
Chris Lattner
87c890a9c2
adjust prototype
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 03:49:07 +00:00
Chris Lattner
6862dbc446
Fix RET of promoted values on targets that custom expand RET to a target node.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25794 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 21:02:23 +00:00
Chris Lattner
68a17febc7
cleanups to the ValueTypeActions interface
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25785 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 08:42:06 +00:00
Chris Lattner
3e6e8cc26b
clean up interface to ValueTypeActions
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25783 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 08:41:12 +00:00
Chris Lattner
70814bc384
Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperands
...
instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25780 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 07:58:15 +00:00
Chris Lattner
8ca05e0c30
Allow custom expansion of ConstantVec nodes. PPC will use this in the future.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:34:16 +00:00
Chris Lattner
3181a771ff
Legalize ConstantFP into TargetConstantFP when the target allows. Implement
...
custom expansion of ConstantFP nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25772 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:26:56 +00:00
Chris Lattner
03d5e877fd
eliminate uses of SelectionDAG::getBR2Way_CC
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25767 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:00:45 +00:00
Chris Lattner
c52ad4f04e
Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make it
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faster. This cuts about 120 lines of code out of the legalizer (mostly code
checking to see if operands have changed).
It also fixes an ugly performance issue, where the legalizer cloned the entire
graph after any change. Now the "UpdateNodeOperands" method gives it a chance
to reuse nodes if the operands of a node change but not its opcode or valuetypes.
This speeds up instruction selection time on kimwitu++ by about 8.2% with a
release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 10:58:55 +00:00
Chris Lattner
809ec11088
add another method variant
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25744 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 10:09:25 +00:00
Chris Lattner
df6eb30fa9
add some methods for updating nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25742 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 09:32:45 +00:00
Chris Lattner
948c1b1cda
minor tweaks
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:31:04 +00:00
Chris Lattner
22cde6a518
move a bunch of code, no other change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:25:58 +00:00
Chris Lattner
7cd2997a83
remove a couple more now-extraneous legalizeop's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:22:56 +00:00
Chris Lattner
5c62f337fe
fix a bug
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 07:42:08 +00:00
Chris Lattner
456a93afce
Several major changes:
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1. Pull out the expand cases for BSWAP and CT* into a separate function,
reducing the size of LegalizeOp.
2. Fix a bug where expand(bswap i64) was wrong when i64 is legal.
3. Changed LegalizeOp/PromoteOp so that the legalizer never needs to be
iterative. It now operates in a single pass over the nodes.
4. Simplify a LOT of code, with a net reduction of ~280 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25736 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 07:39:30 +00:00
Chris Lattner
8137c9e41d
Eliminate the need for ExpandOp to set 'needsanotheriteration', as it already
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relegalizes the stuff it returns.
Add the ability to custom expand ADD/SUB, so that targets don't need to deal
with ADD_PARTS/SUB_PARTS if they don't want.
Fix some obscure potential bugs and simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 05:07:51 +00:00
Chris Lattner
9c6b4b8c3a
Instead of making callers of ExpandLibCall legalize the result, make
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ExpandLibCall do it itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 04:28:26 +00:00
Chris Lattner
0e8ea71a4f
Eliminate the need to do another iteration of the legalizer after inserting
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a libcall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 04:23:12 +00:00
Chris Lattner
04c62c78f4
remove method I just added
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25728 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 03:43:09 +00:00
Chris Lattner
4f16e70faa
add a new callback
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25727 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 03:37:03 +00:00
Nate Begeman
0aed7840ec
Implement Promote for VAARG, and allow it to be custom promoted for people
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who don't want the default behavior (Alpha).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 03:14:31 +00:00
Nate Begeman
61af66e687
Add a missing case to the dag combiner.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25723 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 01:06:30 +00:00
Chris Lattner
0ff5c27a00
Remove the ISD::CALL and ISD::TAILCALL nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25721 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 00:18:58 +00:00
Nate Begeman
ee625573b5
Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for
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the same functionality. This addresses another piece of bug 680. Next,
on to fixing Alpha VAARG, which I broke last time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25696 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:09:22 +00:00
Chris Lattner
acc43bf4ab
Teach the scheduler to emit the appropriate INLINEASM MachineInstr for an
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ISD::INLINEASM node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25668 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 23:28:04 +00:00
Chris Lattner
ce7518ce92
initial selectiondag support for new INLINEASM node. Note that inline asms
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with outputs or inputs are not supported yet. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25664 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 22:24:51 +00:00
Chris Lattner
4ccb070f15
Implement a method for inline asm support
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25660 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 20:37:03 +00:00
Evan Cheng
cdf3838bf1
Clean up some code; improve efficiency; and fixed a potential bug involving
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chain successors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25630 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 00:30:29 +00:00
Reid Spencer
2a8e6186e9
Don't break the optimized build (by incorrect placement of #endif)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25613 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 21:49:13 +00:00
Chris Lattner
ee4a76563a
initialize an instance var, apparently I forgot to commit this long ago
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25609 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 18:57:15 +00:00
Evan Cheng
46c01cfe9f
No need to keep track of top and bottom nodes in a group since the vector is
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already in order. Thanks Jim for pointing it out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 18:54:24 +00:00
Evan Cheng
0577a22c67
Set SchedulingForLatency to be the default scheduling preference for all.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25607 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 18:52:42 +00:00
Nate Begeman
acc398c195
First part of bug 680:
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Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 18:21:52 +00:00
Jeff Cohen
44c687d0af
Fix VC++ compilation error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25604 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 17:17:49 +00:00
Evan Cheng
cd1419af1e
Bottom up register usage reducing list scheduler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25601 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 09:14:32 +00:00
Evan Cheng
e0a5832374
Keep track of bottom / top element of a set of flagged nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25600 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 09:13:41 +00:00
Evan Cheng
3f23952404
If scheduler choice is the default (-sched=default), use target scheduling
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preference to determine which scheduler to use. SchedulingForLatency ==
Breadth first; SchedulingForRegPressure == bottom up register reduction list
scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25599 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 09:12:57 +00:00
Chris Lattner
6a5428934b
Fix an infinite loop I caused by making sure to legalize the flag operand
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of CALLSEQ_* nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25582 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24 05:48:21 +00:00
Jeff Cohen
2aa750a874
Fix VC++ compilation error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25577 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24 04:43:17 +00:00
Andrew Lenharth
7cf11b4ab2
another couple selects
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25551 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 21:51:14 +00:00
Andrew Lenharth
8c6f1ee5aa
another selectto
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 20:59:12 +00:00
Jim Laskey
17d52f7234
Typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25545 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 13:34:04 +00:00
Evan Cheng
f0f9c90204
Skeleton of the list schedule.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 08:26:10 +00:00
Evan Cheng
4148429064
Minor clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25543 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 08:25:34 +00:00
Chris Lattner
67993f7b97
Fix Regression/CodeGen/SparcV8/2006-01-22-BitConvertLegalize.ll by making
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sure that the result of expanding a BIT_CONVERT node is itself legalized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 07:30:46 +00:00
Evan Cheng
dfeeac9f00
Remove a couple of unnecessary #include's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 07:21:01 +00:00
Evan Cheng
4ef1086749
Factor out more instruction scheduler code to the base class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25532 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 07:01:07 +00:00
Chris Lattner
39a17dd31d
Fix bugs lowering stackrestore, fixing 2004-08-12-InlinerAndAllocas.c on
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PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25522 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 05:22:07 +00:00
Chris Lattner
2c2c6c61f1
Add explicit #includes of <iostream>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-22 23:41:00 +00:00
Chris Lattner
a3818e6f9a
Fix a bug in a recent refactor that caused a bunch of programs to miscompile
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or the compiler to crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25503 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21 19:12:11 +00:00
Chris Lattner
348e93c8f7
Fix CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25496 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21 04:27:00 +00:00
Evan Cheng
a9c2091cd3
Do some code refactoring on Jim's scheduler in preparation of the new list
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scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25493 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21 02:32:06 +00:00
Chris Lattner
a68d204843
remove some unintentionally committed code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25483 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 18:40:10 +00:00
Chris Lattner
4eebb60f84
If the target doesn't support f32 natively, insert the FP_EXTEND in target-indep
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code, so that the LowerReturn code doesn't have to handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25482 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 18:38:32 +00:00
Evan Cheng
12f2274ba8
Another typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25440 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 04:54:52 +00:00
Andrew Lenharth
8ff318b7fb
was ignoring the legalized chain in this case, fixed SPASS on alpha
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25428 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18 23:19:08 +00:00
Nate Begeman
a148d9811a
Get rid of code in the DAGCombiner that is duplicated in SelectionDAG.cpp
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Now all constant folding in the code generator is in one place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25426 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18 22:35:16 +00:00
Chris Lattner
d12b2d7b5a
Temporary work around for a libcall insertion bug: If a target doesn't
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support FSIN/FCOS nodes, do not lower sin/cos to them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25425 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18 21:50:14 +00:00
Chris Lattner
4090aee72e
Fix a backwards conditional that caused an inf loop in some cases. This
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fixes: test/Regression/CodeGen/Generic/2005-01-18-SetUO-InfLoop.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25419 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18 19:13:41 +00:00
Robert Bocchino
4eb2e3a6f4
Support for the insertelement operation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25405 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17 20:06:42 +00:00
Evan Cheng
433f8acefb
Bug fix: missing LegalizeOp() on newly created nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25401 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17 19:47:13 +00:00