Ulrich Weigand
558cec9d9b
[SystemZ] Add back end
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This adds the actual lib/Target/SystemZ target files necessary to
implement the SystemZ target. Note that at this point, the target
cannot yet be built since the configure bits are missing. Those
will be provided shortly by a follow-on patch.
This version of the patch incorporates feedback from reviews by
Chris Lattner and Anton Korobeynikov. Thanks to all reviewers!
Patch by Richard Sandiford.
llvm-svn: 181203
2013-05-06 16:15:19 +00:00
Dan Gohman
b54d296fd4
Remove the SystemZ backend.
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llvm-svn: 142878
2011-10-24 23:48:32 +00:00
Eric Christopher
318243d2c6
Remove isTwoAddress from SystemZ.
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llvm-svn: 106467
2010-06-21 20:25:57 +00:00
Chris Lattner
4a35b78926
Improve systemz to model cmp and ucmp nodes as returning
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their flags correctly.
llvm-svn: 99738
2010-03-28 05:21:52 +00:00
Dan Gohman
99c6bcbc13
The mayHaveSideEffects flag is no longer used.
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llvm-svn: 97348
2010-02-27 23:47:46 +00:00
Dan Gohman
3393a4c997
Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a
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bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.
llvm-svn: 85517
2009-10-29 18:10:34 +00:00
Dan Gohman
b20fae567f
Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides
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eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
llvm-svn: 85357
2009-10-28 00:55:57 +00:00
Anton Korobeynikov
9458a8c84d
Add fcopysign instructions
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llvm-svn: 79664
2009-08-21 20:02:37 +00:00
Anton Korobeynikov
d9c48cfd00
All FP instructions have 12 bit memory displacement field
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llvm-svn: 76058
2009-07-16 14:33:27 +00:00
Anton Korobeynikov
c84e2bb30e
Fix instruction mnemonics for some fp_to_sint operations
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llvm-svn: 76048
2009-07-16 14:29:26 +00:00
Anton Korobeynikov
4181716247
Handle bitconverts
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llvm-svn: 76042
2009-07-16 14:27:01 +00:00
Anton Korobeynikov
117e7a7179
Emit proper rounding mode for fp_to_sint
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llvm-svn: 76037
2009-07-16 14:25:12 +00:00
Anton Korobeynikov
886e977c69
Make FP zero to be legal FP immediate via LOAD ZERO
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llvm-svn: 76034
2009-07-16 14:24:16 +00:00
Anton Korobeynikov
2474b40557
Loads are not two-address in any way
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llvm-svn: 76033
2009-07-16 14:24:01 +00:00
Anton Korobeynikov
e45c7cb554
Add LOAD NEGATIVE instruction
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llvm-svn: 76032
2009-07-16 14:23:44 +00:00
Anton Korobeynikov
d12e7875c9
LOAD COMPLEMENT instruction is not really two-addr
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llvm-svn: 76031
2009-07-16 14:23:30 +00:00
Anton Korobeynikov
f8ac41d531
Add multiple add/sub instructions
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llvm-svn: 76030
2009-07-16 14:23:16 +00:00
Anton Korobeynikov
b90a38d00d
Proper FP extloads
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llvm-svn: 76028
2009-07-16 14:22:46 +00:00
Anton Korobeynikov
940ec5955b
Add proper PWS impdef's
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llvm-svn: 76027
2009-07-16 14:22:30 +00:00
Anton Korobeynikov
3f37f337be
Propagate FP select_cc to dag inserters
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llvm-svn: 76026
2009-07-16 14:22:15 +00:00
Anton Korobeynikov
dc167c2eec
Implement fp_to_sint
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llvm-svn: 76025
2009-07-16 14:21:57 +00:00
Anton Korobeynikov
0c3534b070
Add fabs
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llvm-svn: 76023
2009-07-16 14:21:27 +00:00
Anton Korobeynikov
fc1f449073
Add fneg
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llvm-svn: 76022
2009-07-16 14:21:12 +00:00
Anton Korobeynikov
d2feb0d2e4
More sint_to_fp stuff
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llvm-svn: 76020
2009-07-16 14:20:39 +00:00
Anton Korobeynikov
23615e0340
Add bunch of FP instructions
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llvm-svn: 76019
2009-07-16 14:20:24 +00:00
