Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.73 -> 1.74
---
Log message:
Do not filter loop if candidate branch is in loop header.
---
Diffs of the changes: (+0 -2)
LoopUnswitch.cpp |2 --
1 files changed, 2 deletions(-)
Index: llvm/lib/Transforms/Scal
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.72 -> 1.73
---
Log message:
- Undo previous check and allow loop switch for condtion that is not inside
loop.
- Avoid loop unswich for loop header branch.
- While cloning dominators fix typo and handle self dominating
On Jun 27, 2007, at 5:52 PM, Chris Lattner wrote:
>> If a condition is not inside a loop then the condition is suitable
>> to loop unswitch candidate for the loop.
>
> I don't understand, why reject unswitching on these values?
>
> cases like this should be unswitched:
>
> int foo(int arg) {
>
> If a condition is not inside a loop then the condition is suitable
> to loop unswitch candidate for the loop.
I don't understand, why reject unswitching on these values?
cases like this should be unswitched:
int foo(int arg) {
for (..)
if (arg)
...
}
-Chris
>
> ---
> Diffs of
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.71 -> 1.72
---
Log message:
Update LoopUnswitch pass to preserve DomiantorTree.
---
Diffs of the changes: (+55 -32)
LoopUnswitch.cpp | 87 ++-
1 files changed,
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.70 -> 1.71
---
Log message:
If a condition is not inside a loop then the condition is suitable
to loop unswitch candidate for the loop.
---
Diffs of the changes: (+7 -0)
LoopUnswitch.cpp |7 +++
1 files ch
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.69 -> 1.70
---
Log message:
Avoid non-trivial loop unswitching while optimizing for size.
---
Diffs of the changes: (+12 -3)
LoopUnswitch.cpp | 15 ---
1 files changed, 12 insertions(+), 3 deletions(
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.68 -> 1.69
---
Log message:
Fix PR1333: http://llvm.org/PR1333
Testcases :
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049451.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-2
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.64 -> 1.65
---
Log message:
Now LoopUnswitch is a LoopPass.
---
Diffs of the changes: (+17 -86)
LoopUnswitch.cpp | 103 +--
1 files changed, 17 insertions(+), 8
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.62 -> 1.63
---
Log message:
Use efficient container SmallPtrSet
---
Diffs of the changes: (+4 -3)
LoopUnswitch.cpp |7 ---
1 files changed, 4 insertions(+), 3 deletions(-)
Index: llvm/lib/Transforms/Scal
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.61 -> 1.62
---
Log message:
Do not unswitch loop on same value again and again.
---
Diffs of the changes: (+7 -0)
LoopUnswitch.cpp |7 +++
1 files changed, 7 insertions(+)
Index: llvm/lib/Transforms/Sca
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.56 -> 1.57
---
Log message:
fix a bug in a recent patch
---
Diffs of the changes: (+1 -1)
LoopUnswitch.cpp |2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Index: llvm/lib/Transforms/Scalar/LoopUnswitch
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.46 -> 1.47
---
Log message:
Do not rely on std::sort and std::erase to get list of unique
exit blocks. The output is dependent on addresses of basic block.
Add and use Loop::getUniqueExitBlocks.
---
Diffs of the cha
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.44 -> 1.45
---
Log message:
Fix a error that hadn't yet cause any problems, but I'm sure it would have
somewhere down the road.
---
Diffs of the changes: (+1 -1)
LoopUnswitch.cpp |2 +-
1 files changed, 1 inse
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.43 -> 1.44
---
Log message:
Switch to a very conservative heuristic for determining when loop-unswitching
will be profitable. This is mainly to remove some cases where excessive
unswitching would result in long compil
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.42 -> 1.43
---
Log message:
Don't unswitch really large loops even if they are mostly filled with empty
blocks.
---
Diffs of the changes: (+6 -0)
LoopUnswitch.cpp |6 ++
1 files changed, 6 insertions(+)
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.41 -> 1.42
---
Log message:
Fix for 2006-06-27-DeadSwitchCase.ll
Be more careful when updating Phi nodes after eliminating dead switch cases.
Fix
proposed by Chris.
---
Diffs of the changes: (+6 -5)
LoopUnswitc
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.40 -> 1.41
---
Log message:
Make LoopUnswitch able to unswitch loops with live-out values by taking
advantage
of LCSSA. This results several times the number of unswitchings occurring on
tests such and timberwolfmc,
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.39 -> 1.40
---
Log message:
Fix Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll, a loop unswitch
bug exposed by the recent lcssa work.
---
Diffs of the changes: (+13 -1)
LoopUnswitch.cpp | 14 +-
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.38 -> 1.39
---
Log message:
Reapply my 6/9 changes. The bug Evan saw no longer occurs.
---
Diffs of the changes: (+7 -1)
LoopUnswitch.cpp |8 +++-
1 files changed, 7 insertions(+), 1 deletion(-)
Index:
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.37 -> 1.38
---
Log message:
Back out Owen's 6/9 changes. They broke MultiSource/Benchmarks/Prolangs-C/bison
(and perhaps others).
---
Diffs of the changes: (+0 -4)
LoopUnswitch.cpp |4
1 files changed, 4
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.36 -> 1.37
---
Log message:
Add LCSSA as a requirement for LoopUnswitch, and assert that LoopUnswitch
preserves
LCSSA.
---
Diffs of the changes: (+4 -0)
LoopUnswitch.cpp |4
1 files changed, 4 insertions
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.35 -> 1.36
---
Log message:
add the actual cost to the debug info
---
Diffs of the changes: (+4 -2)
LoopUnswitch.cpp |6 --
1 files changed, 4 insertions(+), 2 deletions(-)
Index: llvm/lib/Transforms/Sca
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.34 -> 1.35
---
Log message:
Fix Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll, which
caused SPASS to fail building last night.
We can't trivially unswitch a loop if the exit block has phi nodes in it,
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.33 -> 1.34
---
Log message:
Add some comments, simplify some code, and fix a bug that caused rewriting
to rewrite with the wrong value.
---
Diffs of the changes: (+26 -34)
LoopUnswitch.cpp | 60 +
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.32 -> 1.33
---
Log message:
improved support for branch folding, still not enabled.
---
Diffs of the changes: (+269 -143)
LoopUnswitch.cpp | 412 +++
1 files ch
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.31 -> 1.32
---
Log message:
Implement deletion of dead blocks, currently disabled.
---
Diffs of the changes: (+75 -28)
LoopUnswitch.cpp | 103 ---
1 files chang
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.30 -> 1.31
---
Log message:
a previous patch completely disabled trivial unswitching, this fixees it.
Thanks to nate for pointing this out :)
---
Diffs of the changes: (+0 -1)
LoopUnswitch.cpp |1 -
1 files ch
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.29 -> 1.30
---
Log message:
initial trivial support for folding branches that have now-constant
destinations.
---
Diffs of the changes: (+34 -3)
LoopUnswitch.cpp | 37 ++---
1 fi
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.28 -> 1.29
---
Log message:
When unswitching a loop, make sure to update loop info with exit blocks in
the right loop.
---
Diffs of the changes: (+4 -2)
LoopUnswitch.cpp |6 --
1 files changed, 4 insertio
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.27 -> 1.28
---
Log message:
Fix loops where the header has an exit, fixing a loop-unswitch crash on crafty
---
Diffs of the changes: (+15 -13)
LoopUnswitch.cpp | 28 +++-
1 files changed,
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.26 -> 1.27
---
Log message:
start of some new simplification code, not thoroughly tested, use at your own
risk :)
---
Diffs of the changes: (+161 -14)
LoopUnswitch.cpp | 175 ++
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.25 -> 1.26
---
Log message:
Change SplitBlock to increment a BasicBlock::iterator, not an Instruction*.
Apparently they do different things :)
This fixes a testcase that nate reduced from spass.
Also included are a
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.24 -> 1.25
---
Log message:
Fix VC++ warning.
---
Diffs of the changes: (+0 -1)
LoopUnswitch.cpp |1 -
1 files changed, 1 deletion(-)
Index: llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
diff -u llvm/lib/Transf
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.23 -> 1.24
---
Log message:
fix a bug where we unswitched the wrong way
---
Diffs of the changes: (+2 -2)
LoopUnswitch.cpp |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
Index: llvm/lib/Transforms
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.22 -> 1.23
---
Log message:
Implement trivial unswitching for switch stmts. This allows us to trivial
unswitch this loop on 2 before sweating to unswitch on 1/3.
void test4(int N, int i, int C, int*P, int*Q) {
int
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.21 -> 1.22
---
Log message:
make "trivial" unswitching significantly more general. It can now handle
this for example:
for (j = 0; j < N; ++j) { // trivial unswitch
if (C)
P[i+j] = 0;
}
turning it
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.20 -> 1.21
---
Log message:
Checking the wrong value. This caused us to emit silly code like
Y = seteq bool X, true
instead of just using X :)
---
Diffs of the changes: (+1 -1)
LoopUnswitch.cpp |2 +-
1 file
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.19 -> 1.20
---
Log message:
more refactoring, no functionality change.
---
Diffs of the changes: (+11 -12)
LoopUnswitch.cpp | 23 +++
1 files changed, 11 insertions(+), 12 deletions(-)
Inde
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.18 -> 1.19
---
Log message:
pull some code out into a function
---
Diffs of the changes: (+28 -18)
LoopUnswitch.cpp | 46 --
1 files changed, 28 insertions(+), 18 dele
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.17 -> 1.18
---
Log message:
Use statistics to keep track of what flavors of loops we are unswitching
---
Diffs of the changes: (+19 -7)
LoopUnswitch.cpp | 26 +++---
1 files changed, 19 inser
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.16 -> 1.17
---
Log message:
implement unswitching of loops with switch stmts and selects in them
---
Diffs of the changes: (+135 -94)
LoopUnswitch.cpp | 229 ---
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.15 -> 1.16
---
Log message:
Update PHI nodes in successors of exit blocks.
---
Diffs of the changes: (+34 -5)
LoopUnswitch.cpp | 39 ++-
1 files changed, 34 insertions(+), 5 d
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.14 -> 1.15
---
Log message:
Reform the unswitching code in terms of edge splitting, not block splitting.
---
Diffs of the changes: (+67 -49)
LoopUnswitch.cpp | 116 +++-
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.13 -> 1.14
---
Log message:
Fix a case where UnswitchTrivialCondition broke critical edges with
phi's in the successors
---
Diffs of the changes: (+24 -1)
LoopUnswitch.cpp | 25 -
1 file
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.12 -> 1.13
---
Log message:
add some notes, move some code around. Implement unswitching of loops
with branches on partially invariant computations.
---
Diffs of the changes: (+64 -19)
LoopUnswitch.cpp | 83 +++
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.11 -> 1.12
---
Log message:
Move code around to be more logical, no functionality change.
---
Diffs of the changes: (+32 -26)
LoopUnswitch.cpp | 58 ++-
1 file
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.10 -> 1.11
---
Log message:
When unswitching a trivial loop, do admit we are doing it! :)
---
Diffs of the changes: (+7 -0)
LoopUnswitch.cpp |7 +++
1 files changed, 7 insertions(+)
Index: llvm/lib/Trans
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.9 -> 1.10
---
Log message:
Implement unconditional unswitching of 'trivial' loops, those loops that contain
branches in their entry block that control whether or not the loop is a noop or
not.
---
Diffs of the chang
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.8 -> 1.9
---
Log message:
Simplify control flow a bit, note that unswitch preserves canonical loop form
---
Diffs of the changes: (+12 -10)
LoopUnswitch.cpp | 22 --
1 files changed, 12 inser
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.7 -> 1.8
---
Log message:
Make the threshold a parameter
---
Diffs of the changes: (+7 -3)
LoopUnswitch.cpp | 10 +++---
1 files changed, 7 insertions(+), 3 deletions(-)
Index: llvm/lib/Transforms/Scalar/L
Changes in directory llvm/lib/Transforms/Scalar:
LoopUnswitch.cpp updated: 1.6 -> 1.7
---
Log message:
Simplify the loop-unswitch pass, by not even trying to unswitch loops with
uses of loop values outside the loop. We need loop-closed SSA form to do
this right, or to use SSA rewriting if we r
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