Chris Lattner
21e1a79a31
Allow tools with "consume after" options (like lli) to take more positional
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opts than they take directly. Thanks to John C for pointing this problem
out to me!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22717 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:57:27 +00:00
Chris Lattner
0045776d33
Remove getImmediateForOpcode, which is now dead.
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Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22716 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:34:13 +00:00
Chris Lattner
fd78454477
Add new immediate handling support for mul/div.
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Patch by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:33:23 +00:00
Chris Lattner
5b90917400
Add support for OR/XOR/SUB immediates that are handled with the new immediate
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way. This allows ORI/ORIS pairs, for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22714 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:30:29 +00:00
Chris Lattner
2f57c4da21
Modify the ISD::AND opcode case to use new immediate constant predicates.
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Includes wider support for rotate and mask cases.
Patch by Jim Laskey.
I've requested that Jim add new regression tests the newly handled cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22712 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:24:57 +00:00
Chris Lattner
39c6896d22
Modify the ISD::ADD opcode case to use new immediate constant predicates.
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Includes support for 32-bit constants using addi/addis.
Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22711 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:21:03 +00:00
Chris Lattner
8fd1980ce6
Modify existing support functions to use new immediate constant predicates.
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Patch by Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22710 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:12:35 +00:00
Chris Lattner
cf1cf1886e
Add support predicates for future immediate constant changes.
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Patch by Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22709 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:10:27 +00:00
Chris Lattner
02efa6c140
Move IsRunOfOnes to a more logical place and rename to a proper predicate form
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(lowercase isXXX).
Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22708 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:08:09 +00:00
Nate Begeman
394cd13ba3
Fix JIT encoding of ppc mfocrf instruction; the operands were reversed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22707 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 20:04:52 +00:00
Chris Lattner
4bc5f8071a
Use the new 'moveBefore' method to simplify some code. Really, which is
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easier to understand? :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 19:11:57 +00:00
Chris Lattner
de0132453e
Reject command lines that have too many positional arguments passed (e.g.,
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'opt x y'). This fixes PR493.
Patch contributed by Owen Anderson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22705 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 17:25:38 +00:00
Chris Lattner
3821e478a5
Not all constants are legal immediates in load/store instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22704 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 06:25:50 +00:00
Chris Lattner
ca60967eea
new testcase, not implemented yet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22703 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 06:23:47 +00:00
Chris Lattner
5272f3c669
Implement LoopStrengthReduce/share_code_in_preheader.ll by having one
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rewriter for all code inserted into the preheader, which is never flushed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22702 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:47:49 +00:00
Chris Lattner
8e2dbb6646
It is better to not depend on CSE to share multiplies due to IV insertion.
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This testcase checks that only one mul is present in the output code, as it
should be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22701 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:46:51 +00:00
Chris Lattner
8cb014fd01
These are both implemented by a recent LSR patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22700 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:29:51 +00:00
Chris Lattner
010de25f42
Implement a simple optimization for the termination condition of the loop.
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The termination condition actually wants to use the post-incremented value
of the loop, not a new indvar with an unusual base.
On PPC, for example, this allows us to compile
LoopStrengthReduce/exit_compare_live_range.ll to:
_foo:
li r2, 0
.LBB_foo_1: ; no_exit
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
cmpw cr0, r2, r4
bne .LBB_foo_1 ; no_exit
blr
instead of:
_foo:
li r2, 1 ;; IV starts at 1, not 0
.LBB_foo_1: ; no_exit
li r5, 0
stw r5, 0(r3)
addi r5, r2, 1
cmpw cr0, r2, r4
or r2, r5, r5 ;; Reg-reg copy, extra live range
bne .LBB_foo_1 ; no_exit
blr
This implements LoopStrengthReduce/exit_compare_live_range.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22699 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:28:22 +00:00
Chris Lattner
0fe34d8912
add new helper function
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22698 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:21:50 +00:00
Chris Lattner
287921d188
add a new helper method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22697 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 05:21:33 +00:00
Chris Lattner
660538c8a5
Handle 64-bit constant exprs on 64-bit targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22696 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 04:26:32 +00:00
Chris Lattner
bbf728edeb
All stats are "Number of ..."
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22694 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 20:02:04 +00:00
Chris Lattner
2b83af2d0f
Add some simple folds that occur in bitfield cases. Fix a minor bug in
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isHighOnes, where it would consider 0 to have high ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22693 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 07:03:10 +00:00
Chris Lattner
4c0e4cdc40
Fix typoCVS: ----------------------------------------------------------------------
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22692 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 07:00:52 +00:00
Chris Lattner
bf3fa976ee
add a small simplification that can be exposed after promotion/expansion
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 05:00:44 +00:00
Chris Lattner
ce869ee05b
* Use the new PHINode::hasConstantValue method to simplify some code
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* Teach this code to move allocas out of the loop when tail call eliminating
a call marked 'tail'. This implements TailCallElim/move_alloca_for_tail_call.ll
* Do not perform this transformation if a call is marked 'tail' and if there
are allocas that we cannot move out of the loop in #2 . Doing so would increase
the stack usage of the function. This implements fixes
PR615 and TailCallElim/dont-tce-tail-marked-call.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22690 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 04:27:41 +00:00
Chris Lattner
8cc70cbea4
New testcases for PR615
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22689 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07 04:25:39 +00:00
Chris Lattner
3c304a3ba1
Consolidate the GPOpt stuff to all use the Subtarget, instead of still
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depending on the command line option. Now the command line option just
sets the subtarget as appropriate. G5 opts will now default to on on
G5-enabled nightly testers among other machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22688 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 22:05:03 +00:00
Chris Lattner
8c4a8735ec
adjust to change in getSubtarget() api
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:54:27 +00:00
Chris Lattner
5ab8363206
Since getSubtarget() always provides a const Subtarget, dont' require the user
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to pass it in. Also, since it always returns a non-null pointer, make it
return a reference instead for easier use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22686 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:53:21 +00:00
Chris Lattner
ba25365140
Enable gp optimizations by default when available, even when a target triple
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is available, since the target triple doesn't specify whether to use gpopts
or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22685 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:25:13 +00:00
Chris Lattner
7f9b4e9044
teach TestRunner about prcontext
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22683 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 19:48:29 +00:00
Chris Lattner
0ef10c935a
two simple testcases loopreduce should handle but does not yet currently
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22682 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 19:47:39 +00:00
Chris Lattner
6281ae4bf0
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22681 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 19:18:32 +00:00
Chris Lattner
82299e7097
Change FindEarliestCallSeqEnd (used by libcall insertion) to use a set to
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avoid revisiting nodes more than once. This eliminates a source of
potentially exponential behavior. For a small function in 191.fma3d
(hexah_stress_divergence_), this speeds up isel from taking > 20mins to
taking 0.07s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22680 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 18:10:27 +00:00
Chris Lattner
c534395cb2
Fix a use-of-dangling-pointer bug, from the introduction of SrcValue's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 16:55:31 +00:00
Chris Lattner
2f4eca30d1
Fix a latent bug in the libcall inserter that was exposed by Nate's patch
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yesterday. This fixes whetstone and a bunch of programs in the External tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 16:23:57 +00:00
Chris Lattner
4e624ecd07
don't crash when running the PPC backend on non-ppc hosts without specifying
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a subtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 16:17:22 +00:00
Chris Lattner
d7231ac523
PHINode::hasConstantValue should never return the PHI itself, even if the
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PHI is its only operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 15:37:31 +00:00
Chris Lattner
80f4d88a97
Fix an iterator invalidation problem when we decide a phi has a constant value
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22675 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 15:34:10 +00:00
Chris Lattner
9a59fbb896
Make sure to clean CastedPointers after casts are potentially deleted.
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This fixes LSR crashes on 301.apsi, 191.fma3d, and 189.lucas
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22673 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:30:11 +00:00
Chris Lattner
68ee736694
now that hasConstantValue defaults to only returning values that dominate
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the PHI node, this ugly code can vanish.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22672 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:04:30 +00:00
Chris Lattner
8313a25d27
Invoke instructions do not dominate all successors
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22671 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:03:27 +00:00
Chris Lattner
1325b42a7d
Now that hasConstantValue is more careful w.r.t. returning values that only
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dominate the PHI node, this code can go away. This also makes passes more
aggressive, e.g. implementing Transforms/CondProp/phisimplify2.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:02:04 +00:00
Chris Lattner
b3b48e11da
Use the bool argument to hasConstantValue to decide whether the client is
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prepared to deal with return values that do not dominate the PHI. If we
cannot prove that the result dominates the PHI node, do not return it if
the client can't cope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22669 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:00:58 +00:00
Chris Lattner
2733b30195
new testcase that condprop should handle. The PHI node becomes useless
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after threading the branch, because both operands are the same value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22668 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 00:59:55 +00:00
Chris Lattner
5e1b231921
This code can handle non-dominating instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22667 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 00:57:45 +00:00
Chris Lattner
9acbd611ec
Mark hasConstantValue as a const method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22666 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 00:49:06 +00:00
Nate Begeman
c523f4c096
Add an extra parameter that Chris requested
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22665 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 23:50:43 +00:00
Nate Begeman
a83ba0f5c9
Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
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BasicBlock's removePredecessor routine. This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22664 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 23:24:19 +00:00