Chris Lattner [Fri, 19 Aug 2005 00:31:37 +0000 (00:31 +0000)]
The variable SAR's only take one operand too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22888
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 19 Aug 2005 00:16:17 +0000 (00:16 +0000)]
Stop adding bogus operands to variable shifts on X86. These instructions
only take one operand. The other comes implicitly in through CL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22887
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 18 Aug 2005 23:53:15 +0000 (23:53 +0000)]
Remove the X86 and PowerPC Simple instruction selectors; their time has
passed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22886
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 23:38:41 +0000 (23:38 +0000)]
Figure out how many operands each instruction has, keep track of whether
or not it's variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22885
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 18 Aug 2005 23:38:00 +0000 (23:38 +0000)]
Add shifts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22884
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 23:25:33 +0000 (23:25 +0000)]
Fix operand numbers by marking variable arity nodes as such and by fixing
the operand lists of a few other nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22883
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 23:24:50 +0000 (23:24 +0000)]
MFLR doesn't take an operand, the LR register is implicit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22882
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 23:17:07 +0000 (23:17 +0000)]
Add a new flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22881
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 22:12:31 +0000 (22:12 +0000)]
revert this change, which causes breakage, temporarily
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22880
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 21:36:47 +0000 (21:36 +0000)]
When emitting implicit use/def lists, only emit each unique list once. Though
LLVM is able to merge identical static const globals, GCC isn't, and this caused
some bloat in the generated data. This has a marginal effect on PPC, shrinking
the implicit sets from 10->4, but shrinks X86 from 179 to 23, a much bigger
reduction.
This should speed up the register allocator as well by reducing the dcache
footprint for this static data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22879
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 20:11:49 +0000 (20:11 +0000)]
add a new -view-sched-dags option to view dags as they are sent to the scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22878
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 20:08:53 +0000 (20:08 +0000)]
Move this to the emitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22877
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 18 Aug 2005 20:07:59 +0000 (20:07 +0000)]
Implement the first chunk of a code emitter. This is sophisticated enough to
codegen:
_empty:
.LBB_empty_0: ;
blr
but can't do anything more (yet). :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22876
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 18 Aug 2005 20:06:09 +0000 (20:06 +0000)]
Unmangled names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22875
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Chris Lattner [Thu, 18 Aug 2005 19:52:06 +0000 (19:52 +0000)]
Add ScheduleDAG.cpp to the project
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22874
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Chris Lattner [Thu, 18 Aug 2005 19:45:37 +0000 (19:45 +0000)]
Fill in the numOperands field of the TargetInstrDescriptor struct from the
.td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22873
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Jim Laskey [Thu, 18 Aug 2005 19:38:57 +0000 (19:38 +0000)]
1. Fix comment.
2. Get an exact count of 'li ' instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22872
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 18 Aug 2005 19:32:46 +0000 (19:32 +0000)]
Add regression test to make sure that constants are generated optimally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22871
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 18 Aug 2005 18:58:23 +0000 (18:58 +0000)]
More optimal solution for loading constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22870
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Chris Lattner [Thu, 18 Aug 2005 18:46:06 +0000 (18:46 +0000)]
After selecting the instructions for a basic block, emit the instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22869
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Chris Lattner [Thu, 18 Aug 2005 18:45:24 +0000 (18:45 +0000)]
new file, obviously just a stub
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22868
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Chris Lattner [Thu, 18 Aug 2005 18:44:33 +0000 (18:44 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22867
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Chris Lattner [Thu, 18 Aug 2005 18:34:00 +0000 (18:34 +0000)]
remove some unused stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22866
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Nate Begeman [Thu, 18 Aug 2005 18:14:49 +0000 (18:14 +0000)]
Fix int foo() { return 65535; } by using the top 16 bits of the constant
as the argument to LIS rather than the result of HA16(constant).
The DAG->DAG ISel was already doing the right thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22865
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Nate Begeman [Thu, 18 Aug 2005 18:01:39 +0000 (18:01 +0000)]
Improve ISD::Constant codegen.
Now for int foo() { return -1; } we generate:
_foo:
li r3, -1
blr
instead of
_foo:
lis r2, -1
ori r3, r2, 65535
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22864
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Chris Lattner [Thu, 18 Aug 2005 17:35:14 +0000 (17:35 +0000)]
Enable critical edge splitting by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22863
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Chris Lattner [Thu, 18 Aug 2005 17:16:52 +0000 (17:16 +0000)]
replace switch stmt with an assert, generate li 0 instead of lis 0 for 0,
to make the code follow people's expectations better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22861
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Jim Laskey [Thu, 18 Aug 2005 15:52:30 +0000 (15:52 +0000)]
Handle loading of 0x????0000 constants with a single instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22858
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Nate Begeman [Thu, 18 Aug 2005 07:30:46 +0000 (07:30 +0000)]
Add support for ISD::AND, and its various optimized forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22857
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Nate Begeman [Thu, 18 Aug 2005 07:30:15 +0000 (07:30 +0000)]
Add support for target DAG nodes that take 4 operands, such as PowerPC's
rlwinm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22856
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Nate Begeman [Thu, 18 Aug 2005 05:44:50 +0000 (05:44 +0000)]
Maintain consistency in negating things
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22855
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Nate Begeman [Thu, 18 Aug 2005 05:00:13 +0000 (05:00 +0000)]
Implement XOR, remove a broken sign_extend_inreg case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22854
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Chris Lattner [Thu, 18 Aug 2005 03:31:02 +0000 (03:31 +0000)]
Fix printing of VTSDNodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22853
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 18 Aug 2005 03:11:44 +0000 (03:11 +0000)]
Add a testcase for load short -> uint, which is currently emitted as a
zextload + sign_extend_inreg rather than a sextload.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22852
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Nate Begeman [Thu, 18 Aug 2005 03:04:18 +0000 (03:04 +0000)]
Add a bunch more simple nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22851
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Nate Begeman [Thu, 18 Aug 2005 00:53:47 +0000 (00:53 +0000)]
Add a couple more nodes that are easy to handle
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22850
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Nate Begeman [Thu, 18 Aug 2005 00:21:41 +0000 (00:21 +0000)]
Be fruitful and multiply!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22849
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Jim Laskey [Thu, 18 Aug 2005 00:15:15 +0000 (00:15 +0000)]
Better version of isIntImmediate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22848
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Jim Laskey [Wed, 17 Aug 2005 23:57:24 +0000 (23:57 +0000)]
messed up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22847
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Jim Laskey [Wed, 17 Aug 2005 23:54:12 +0000 (23:54 +0000)]
include/llvm/Support/MathExtras.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22846
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Nate Begeman [Wed, 17 Aug 2005 23:46:35 +0000 (23:46 +0000)]
Teach the DAG->DAG ISel about FNEG, and how it can be used to invert
several of the PowerPC opcodes that come in both negated and non-negated
forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22845
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Nate Begeman [Wed, 17 Aug 2005 23:44:54 +0000 (23:44 +0000)]
Add two new methods isTargetOpcode() which returns true if the node type
is greater than the range of building selection dag node types, and
getTargetOpcode(), which returns the node opcode less the value of
isd::builtin_op_end, which specifies the end of the builtin types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22844
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Chris Lattner [Wed, 17 Aug 2005 21:22:41 +0000 (21:22 +0000)]
Fix Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll, a crash
on 177.mesa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22843
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Chris Lattner [Wed, 17 Aug 2005 21:21:47 +0000 (21:21 +0000)]
new testcase distilled from mesa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22842
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Jim Laskey [Wed, 17 Aug 2005 20:08:02 +0000 (20:08 +0000)]
Move the code dependency for MathExtras.h from SelectionDAGNodes.h.
Added some class dividers in SelectionDAG.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22841
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Jim Laskey [Wed, 17 Aug 2005 20:06:22 +0000 (20:06 +0000)]
Move code dependency for MathExtras.h out of Constants.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22840
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Jim Laskey [Wed, 17 Aug 2005 20:04:34 +0000 (20:04 +0000)]
Promote dependency for MathExtras.h out of Constants.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22839
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Jim Laskey [Wed, 17 Aug 2005 19:34:49 +0000 (19:34 +0000)]
Culling out use of unions for converting FP to bits and vice versa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22838
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Chris Lattner [Wed, 17 Aug 2005 19:33:30 +0000 (19:33 +0000)]
add a beta option for turning on dag->dag isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22837
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Chris Lattner [Wed, 17 Aug 2005 19:33:03 +0000 (19:33 +0000)]
initial hack at a dag->dag instruction selector. This is obviously woefully
incomplete, but it is a start. It handles basic argument/retval stuff, immediates,
add and sub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22836
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Chris Lattner [Wed, 17 Aug 2005 19:32:03 +0000 (19:32 +0000)]
add prototype, remove dead proto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22835
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 17 Aug 2005 19:00:20 +0000 (19:00 +0000)]
Fix a bug in RemoveDeadNodes where it would crash when its "optional"
argument is not specified.
Implement ReplaceAllUsesWith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22834
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Chris Lattner [Wed, 17 Aug 2005 18:59:17 +0000 (18:59 +0000)]
add ReplaceAllUsesWith, and a helper to implemented it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22833
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Chris Lattner [Wed, 17 Aug 2005 18:58:38 +0000 (18:58 +0000)]
Make removeUser more efficient, add a matching addUser.
Fix the setOperands methods I added to update use/def information correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22832
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Jim Laskey [Wed, 17 Aug 2005 17:42:52 +0000 (17:42 +0000)]
Switched to using BitsToDouble for int_to_float to avoid aliasing problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22831
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Jim Laskey [Wed, 17 Aug 2005 17:27:47 +0000 (17:27 +0000)]
Added support for converting raw bits to FP, and FP to raw bits. The intent
is to avoid the distraction of the union declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22830
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Chris Lattner [Wed, 17 Aug 2005 17:08:24 +0000 (17:08 +0000)]
Fix some bugs in the alpha backend, some of which I introduced yesterday,
and some that were preexisting. All alpha regtests pass now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22829
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Jim Laskey [Wed, 17 Aug 2005 09:44:59 +0000 (09:44 +0000)]
Change hex float constants for the sake of VC++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22828
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Chris Lattner [Wed, 17 Aug 2005 06:46:50 +0000 (06:46 +0000)]
This was moved to the .cpp file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22827
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Chris Lattner [Wed, 17 Aug 2005 06:37:43 +0000 (06:37 +0000)]
Add a new beta option for critical edge splitting, to avoid a problem that
Nate noticed in yacr2 (and I know occurs in other places as well).
This is still rough, as the critical edge blocks are not intelligently placed
but is added to get some idea to see if this improves performance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22825
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Chris Lattner [Wed, 17 Aug 2005 06:35:16 +0000 (06:35 +0000)]
Use a new helper to split critical edges, making the code simpler.
Do not claim to not change the CFG. We do change the cfg to split critical
edges. This isn't causing us a problem now, but could likely do so in the
future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22824
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Chris Lattner [Wed, 17 Aug 2005 06:34:37 +0000 (06:34 +0000)]
add a helper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22823
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 17 Aug 2005 06:06:25 +0000 (06:06 +0000)]
Fix a regression on X86, where FP values can be promoted too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22822
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Misha Brukman [Wed, 17 Aug 2005 02:38:56 +0000 (02:38 +0000)]
Fix grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22821
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Chris Lattner [Wed, 17 Aug 2005 01:54:00 +0000 (01:54 +0000)]
make sure to remove a node from the use list of its operands when we replace
it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22820
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Chris Lattner [Wed, 17 Aug 2005 01:25:14 +0000 (01:25 +0000)]
Fix a few small typos I noticed when converting this over to the DAG->DAG
selector. Also, there is no difference between addSImm and addImm, so just
use addImm, folding some branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22819
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Jim Laskey [Wed, 17 Aug 2005 01:14:38 +0000 (01:14 +0000)]
Removed UINT_TO_FP and SINT_TO_FP from ISel outright.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22818
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Andrew Lenharth [Wed, 17 Aug 2005 00:47:24 +0000 (00:47 +0000)]
thinko. Should fix s4addl.ll regression
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22817
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Jim Laskey [Wed, 17 Aug 2005 00:41:40 +0000 (00:41 +0000)]
Remove ISel code generation for UINT_TO_FP and SINT_TO_FP. Now asserts if
marked as legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22816
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Jim Laskey [Wed, 17 Aug 2005 00:40:22 +0000 (00:40 +0000)]
Make UINT_TO_FP and SINT_TO_FP use generic expansion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22815
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Jim Laskey [Wed, 17 Aug 2005 00:39:29 +0000 (00:39 +0000)]
Added generic code expansion for [signed|unsigned] i32 to [f32|f64] casts in the
legalizer. PowerPC now uses this expansion instead of ISel version.
Example:
// signed integer to double conversion
double f1(signed x) {
return (double)x;
}
// unsigned integer to double conversion
double f2(unsigned x) {
return (double)x;
}
// signed integer to float conversion
float f3(signed x) {
return (float)x;
}
// unsigned integer to float conversion
float f4(unsigned x) {
return (float)x;
}
Byte Code:
internal fastcc double %_Z2f1i(int %x) {
entry:
%tmp.1 = cast int %x to double ; <double> [#uses=1]
ret double %tmp.1
}
internal fastcc double %_Z2f2j(uint %x) {
entry:
%tmp.1 = cast uint %x to double ; <double> [#uses=1]
ret double %tmp.1
}
internal fastcc float %_Z2f3i(int %x) {
entry:
%tmp.1 = cast int %x to float ; <float> [#uses=1]
ret float %tmp.1
}
internal fastcc float %_Z2f4j(uint %x) {
entry:
%tmp.1 = cast uint %x to float ; <float> [#uses=1]
ret float %tmp.1
}
internal fastcc double %_Z2g1i(int %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint
1127219200, uint* %tmp.0
%tmp.2 = cast int %x to uint ; <uint> [#uses=1]
%tmp.3 = xor uint %tmp.2,
2147483648 ; <uint> [#uses=1]
%tmp.5 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %tmp.3, uint* %tmp.5
%tmp.9 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.10 = load double* %tmp.9 ; <double> [#uses=1]
%tmp.13 = load double* cast (long* %signed_bias to double*) ; <double> [#uses=1]
%tmp.14 = sub double %tmp.10, %tmp.13 ; <double> [#uses=1]
ret double %tmp.14
}
internal fastcc double %_Z2g2j(uint %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint
1127219200, uint* %tmp.0
%tmp.1 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %x, uint* %tmp.1
%tmp.4 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.5 = load double* %tmp.4 ; <double> [#uses=1]
%tmp.8 = load double* cast (long* %unsigned_bias to double*) ; <double> [#uses=1]
%tmp.9 = sub double %tmp.5, %tmp.8 ; <double> [#uses=1]
ret double %tmp.9
}
internal fastcc float %_Z2g3i(int %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint
1127219200, uint* %tmp.0
%tmp.2 = cast int %x to uint ; <uint> [#uses=1]
%tmp.3 = xor uint %tmp.2,
2147483648 ; <uint> [#uses=1]
%tmp.5 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %tmp.3, uint* %tmp.5
%tmp.9 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.10 = load double* %tmp.9 ; <double> [#uses=1]
%tmp.13 = load double* cast (long* %signed_bias to double*) ; <double> [#uses=1]
%tmp.14 = sub double %tmp.10, %tmp.13 ; <double> [#uses=1]
%tmp.16 = cast double %tmp.14 to float ; <float> [#uses=1]
ret float %tmp.16
}
internal fastcc float %_Z2g4j(uint %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint
1127219200, uint* %tmp.0
%tmp.1 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %x, uint* %tmp.1
%tmp.4 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.5 = load double* %tmp.4 ; <double> [#uses=1]
%tmp.8 = load double* cast (long* %unsigned_bias to double*) ; <double> [#uses=1]
%tmp.9 = sub double %tmp.5, %tmp.8 ; <double> [#uses=1]
%tmp.11 = cast double %tmp.9 to float ; <float> [#uses=1]
ret float %tmp.11
}
PowerPC Code:
.machine ppc970
.const
.align 2
.CPIl1__Z2f1i_0: ; float 0x4330000080000000
.long
1501560836 ; float 4.5036e+15
.text
.align 2
.globl l1__Z2f1i
l1__Z2f1i:
.LBBl1__Z2f1i_0: ; entry
xoris r2, r3, 32768
stw r2, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl1__Z2f1i_0)
lfs f1, lo16(.CPIl1__Z2f1i_0)(r2)
fsub f1, f0, f1
blr
.const
.align 2
.CPIl2__Z2f2j_0: ; float 0x4330000000000000
.long
1501560832 ; float 4.5036e+15
.text
.align 2
.globl l2__Z2f2j
l2__Z2f2j:
.LBBl2__Z2f2j_0: ; entry
stw r3, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl2__Z2f2j_0)
lfs f1, lo16(.CPIl2__Z2f2j_0)(r2)
fsub f1, f0, f1
blr
.const
.align 2
.CPIl3__Z2f3i_0: ; float 0x4330000080000000
.long
1501560836 ; float 4.5036e+15
.text
.align 2
.globl l3__Z2f3i
l3__Z2f3i:
.LBBl3__Z2f3i_0: ; entry
xoris r2, r3, 32768
stw r2, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl3__Z2f3i_0)
lfs f1, lo16(.CPIl3__Z2f3i_0)(r2)
fsub f0, f0, f1
frsp f1, f0
blr
.const
.align 2
.CPIl4__Z2f4j_0: ; float 0x4330000000000000
.long
1501560832 ; float 4.5036e+15
.text
.align 2
.globl l4__Z2f4j
l4__Z2f4j:
.LBBl4__Z2f4j_0: ; entry
stw r3, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl4__Z2f4j_0)
lfs f1, lo16(.CPIl4__Z2f4j_0)(r2)
fsub f0, f0, f1
frsp f1, f0
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22814
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 17 Aug 2005 00:34:06 +0000 (00:34 +0000)]
add a new TargetConstant node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22813
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 17 Aug 2005 00:33:30 +0000 (00:33 +0000)]
add some helper methods, and a new TargetConstant node, which is not
subjected to folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22812
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Wed, 17 Aug 2005 00:20:08 +0000 (00:20 +0000)]
Implement a couple improvements:
Remove dead code in ISD::Constant handling
Add support for add long, imm16
We now codegen 'long long foo(long long a) { return ++a; }'
as:
addic r4, r4, 1
addze r3, r3
blr
instead of:
li r2, 1
li r5, 0
addc r2, r4, r2
adde r3, r3, r5
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22811
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 22:04:58 +0000 (22:04 +0000)]
remove a dead enum value, making a comment above correct again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22810
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 21:59:52 +0000 (21:59 +0000)]
This is a dummy, it doesn't matter what the ValueType is
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22809
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 21:58:15 +0000 (21:58 +0000)]
updates for changes in nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22808
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 21:56:37 +0000 (21:56 +0000)]
update the backends to work with the new CopyFromReg/CopyToReg/ImplicitDef nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22807
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 21:55:35 +0000 (21:55 +0000)]
Eliminate the RegSDNode class, which 3 nodes (CopyFromReg/CopyToReg/ImplicitDef)
used to tack a register number onto the node.
Instead of doing this, make a new node, RegisterSDNode, which is a leaf
containing a register number. These three operations just become normal
DAG nodes now, instead of requiring special handling.
Note that with this change, it is no longer correct to make illegal
CopyFromReg/CopyToReg nodes. The legalizer will not touch them, and this
is bad, so don't do it. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22806
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Tue, 16 Aug 2005 19:49:35 +0000 (19:49 +0000)]
Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty
fixme from the PowerPC backend. Emit slightly better code for legalizing
select_cc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 18:33:07 +0000 (18:33 +0000)]
Allow passing a dag into dump and getOperationName. If one is available
when printing a node, use it to render target operations with their
target instruction name instead of "<<unknown>>".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22804
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 18:32:18 +0000 (18:32 +0000)]
allow passing a dag into getOperationName and dump
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22803
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 18:31:23 +0000 (18:31 +0000)]
Use a extant helper to do this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22802
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 18:17:10 +0000 (18:17 +0000)]
Add some methods for dag->dag isel.
Split RemoveNodeFromCSEMaps out of DeleteNodesIfDead to do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22801
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 18:16:24 +0000 (18:16 +0000)]
add some methods for dag->dag isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22800
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 17:14:42 +0000 (17:14 +0000)]
Pull the LLVM -> DAG lowering code out of the pattern selector so that it
can be shared with the DAG->DAG selector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22799
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 00:38:11 +0000 (00:38 +0000)]
Fix a bad case in gzip where we put lots of things in registers across the
loop, because a IV-dependent value was used outside of the loop and didn't
have immediate-folding capability
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22798
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 00:37:01 +0000 (00:37 +0000)]
Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22797
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 16 Aug 2005 00:36:12 +0000 (00:36 +0000)]
testcase that crashes lsr, distilled from 175.vpr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22796
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 15 Aug 2005 23:47:04 +0000 (23:47 +0000)]
Turn loop strength reduction on by default.
Only run createLowerConstantExpressionsPass for the simple isel. The DAG
isel has no need for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22794
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 15 Aug 2005 23:33:51 +0000 (23:33 +0000)]
Teach LLVM to know how many times a loop executes when constructed with
a < expression, e.g.: for (i = m; i < n; ++i)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22793
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Laskey [Mon, 15 Aug 2005 17:35:26 +0000 (17:35 +0000)]
Broke 80 column rule.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22792
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Laskey [Mon, 15 Aug 2005 17:14:19 +0000 (17:14 +0000)]
Changed code gen for int to f32 to use rounding. This makes FP results
consistent with gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22791
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 15 Aug 2005 14:31:37 +0000 (14:31 +0000)]
isIntImmediate is a good Idea. Add a flavor that checks bounds while it is at it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22790
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sun, 14 Aug 2005 18:38:32 +0000 (18:38 +0000)]
Fix last night's PPC32 regressions by
1. Not selecting the false value of a select_cc in the false arm, which
isn't legal for nested selects.
2. Actually returning the node we created and Legalized in the FP_TO_UINT
Expander.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22789
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sun, 14 Aug 2005 18:37:02 +0000 (18:37 +0000)]
Fix last night's X86 regressions by putting code for SSE in the if(SSE)
block. nur.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22788
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Sun, 14 Aug 2005 15:14:34 +0000 (15:14 +0000)]
only build .a on alpha
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22787
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sun, 14 Aug 2005 04:36:51 +0000 (04:36 +0000)]
Fix FP_TO_UINT with Scalar SSE2 now that the legalizer can handle it. We
now generate the relatively good code sequences:
unsigned short foo(float a) { return a; }
_foo:
movss 4(%esp), %xmm0
cvttss2si %xmm0, %eax
movzwl %ax, %eax
ret
and
unsigned bar(float a) { return a; }
_bar:
movss .CPI_bar_0, %xmm0
movss 4(%esp), %xmm1
movapd %xmm1, %xmm2
subss %xmm0, %xmm2
cvttss2si %xmm2, %eax
xorl $-
2147483648, %eax
cvttss2si %xmm1, %ecx
ucomiss %xmm0, %xmm1
cmovb %ecx, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22786
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sun, 14 Aug 2005 01:20:53 +0000 (01:20 +0000)]
Teach the legalizer how to legalize FP_TO_UINT.
Teach the legalizer to promote FP_TO_UINT to FP_TO_SINT if the wider
FP_TO_UINT is also illegal. This allows us on PPC to codegen
unsigned short foo(float a) { return a; }
as:
_foo:
.LBB_foo_0: ; entry
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
rlwinm r3, r2, 0, 16, 31
blr
instead of:
_foo:
.LBB_foo_0: ; entry
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
lis r3, ha16(.CPI_foo_0)
lfs f0, lo16(.CPI_foo_0)(r3)
fcmpu cr0, f1, f0
blt .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
fsubs f0, f1, f0
fctiwz f0, f0
stfd f0, -16(r1)
lwz r2, -12(r1)
xoris r2, r2, 32768
.LBB_foo_2: ; entry
rlwinm r3, r2, 0, 16, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22785
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sun, 14 Aug 2005 01:17:16 +0000 (01:17 +0000)]
Make FP_TO_UINT Illegal. This allows us to generate significantly better
codegen for FP_TO_UINT by using the legalizer's SELECT variant.
Implement a codegen improvement for SELECT_CC, selecting the false node in
the MBB that feeds the phi node. This allows us to codegen:
void foo(int *a, int b, int c) { int d = (a < b) ? 5 : 9; *a = d; }
as:
_foo:
li r2, 5
cmpw cr0, r4, r3
bgt .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
li r2, 9
.LBB_foo_2: ; entry
stw r2, 0(r3)
blr
insted of:
_foo:
li r2, 5
li r5, 9
cmpw cr0, r4, r3
bgt .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
or r2, r5, r5
.LBB_foo_2: ; entry
stw r2, 0(r3)
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22784
91177308-0d34-0410-b5e6-
96231b3b80d8