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,
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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
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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
2695de410d
back out my previous hack
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26650 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 17:48:46 +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
8bf586f305
temporary hack to get the build working again, apparently a header
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commit was forgotten
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26642 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 17:11:08 +00:00
Jim Laskey
54689c2bee
Move bit field endianness to backend.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26639 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 13:28:47 +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. :)
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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
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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.
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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
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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
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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.
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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
Jim Laskey
2b0e309640
libstdc++-v3 was failing to build. Needed to handle composite types with empty
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members (running into a zero initializer.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26607 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 02:07:02 +00:00
Jim Laskey
7809811e4e
Use "llvm.metadata" section for debug globals. Filter out these globals in the
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asm printer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26599 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 22:00:35 +00:00
Jim Laskey
e8c3e3b51c
Switch to using a numeric id for anchors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26598 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 20:53:47 +00:00
Jim Laskey
20c3ed8166
Bitfield support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26593 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 15:51:33 +00:00
Chris Lattner
b2d635803d
Fix some formatting, when looking for hazards, prefer target nodes over
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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
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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
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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.
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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
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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
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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.
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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
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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
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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.
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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),
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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
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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.
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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
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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
Jim Laskey
b80af6f572
Added support for dwarf block data entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26509 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 21:00:14 +00:00
Jim Laskey
f01e547700
Adding basic structure support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26505 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 15:06:57 +00:00
Evan Cheng
3e1ce5a44d
Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
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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.
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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.
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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
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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
Evan Cheng
932f022b82
Move #include "llvm/CodeGen/AsmPrinter.h" to top since it's the interface.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26493 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 02:04:29 +00:00
Chris Lattner
41edaa0529
remove the read/write port/io intrinsics.
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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
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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
Jim Laskey
6a3eb01084
Support for enumerations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26466 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 23:52:37 +00:00
Evan Cheng
246ae0dcf7
Don't print llvm constant in assmebly file. Assembler won't like comments that
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span multiple lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26463 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 22:18:09 +00:00
Chris Lattner
1ec05d1bb4
Fix CodeGen/Generic/2006-03-01-dagcombineinfloop.ll, an infinite loop
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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
Jim Laskey
9c4447aa2b
Switch back to using actual dwarf tags. Simplifies code without loss to other
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debug forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26455 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 20:39:36 +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
Jim Laskey
92ae740396
Use context and not compile unit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26453 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 18:20:30 +00:00
Jim Laskey
288fe0f74d
I guess I can handle large type sizes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26452 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 18:13:05 +00:00
Jim Laskey
f8913f19ae
Basic array support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26451 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 17:53:02 +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.
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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),
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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.
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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.
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- 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
Jim Laskey
45ccae5b7d
Add const, volatile, restrict support.
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Add array of debug descriptor support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26428 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-28 20:15:07 +00:00
Chris Lattner
35a9f5a241
Compile:
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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:
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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)
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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.
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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
Jim Laskey
9a777a3a8e
Qualify dwarf namespace inside llvm namespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26409 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 22:37:23 +00:00
Jim Laskey
8a8e9756c8
Partial enabling of functions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26404 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 20:37:42 +00:00
Jim Laskey
bd76184e67
Supporting multiple compile units.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26402 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 17:27:12 +00:00
Jim Laskey
0d086af82b
Re-orging file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26401 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-27 12:43:29 +00:00
Chris Lattner
a6bc5a4d21
Implement bit propagation through sub nodes, this (re)implements
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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
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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
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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
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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.
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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.
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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
28bad08411
Fix a bug that Evan exposed with some changes he's making, and that was
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exposed with a fastcc problem (breaking pcompress2 on x86 with -enable-x86-fastcc).
When reloading a reused reg, make sure to invalidate the reloaded reg, and
check to see if there are any other pending uses of the same register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26369 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-25 02:17:31 +00:00
Chris Lattner
47cb7173ea
Remove debugging printout :)
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Add a minor compile time win, no codegen change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26368 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-25 02:03:40 +00:00
Chris Lattner
540fec6b38
Refactor some code from being inline to being out in a new class with methods.
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This gets rid of two gotos, which is always nice, and also adds some comments.
No functionality change, this is just a refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26367 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-25 01:51:33 +00:00
Chris Lattner
dd26033002
Use the PrintAsmMemoryOperand to print addressing modes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26364 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 20:21:58 +00:00
Chris Lattner
daf6bc6347
Pass all the flags to the asm printer, not just the # operands.
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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.
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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
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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
Jim Laskey
6990600f93
Add pointer and reference types. Added short-term code to ignore NULL types
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(to allow llvm-gcc4 to build.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26355 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-24 16:46:40 +00:00