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4794a6b6a0
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950 Commits

Author SHA1 Message Date
Chris Lattner
4794a6b6a0 Fix the remaining bugs in the vector expansion rework I commited yesterday. 
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 
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 
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* 
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. 
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 
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. 
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. 
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 
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. 
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. 
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. 
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. 
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: 
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. 
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 
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, 
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 
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 
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 
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 
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 
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 
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 
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 
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. 
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. 
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. 
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 
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 
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* 
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. 
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 
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. 
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 
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. 
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. 
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 
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 
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 
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 
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. 
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 
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