Dan Gohman
3069b3193d
Extract the code for inserting a loop into the loop queue into
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a separate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82946 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:49:43 +00:00
Dan Gohman
9702901a1e
When a loop is deleted, immediately release all of the active
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LoopPasses for that loop. This avoids trouble with the PassManager
trying to call verifyAnalysis on them, and frees up some memory
sooner rather than later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82945 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:43:07 +00:00
Dan Gohman
27a8fb8a54
Extract the code for releasing a pass into a separate function, and
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tidy it up a little.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82944 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:38:27 +00:00
Nick Lewycky
c261df9fab
Remove the "metadata*" type and simplify the code it complicated. This was only
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used to support GlobalVariables storing MDNodes, back when they were derived
from Constant before the introduction of NamedMDNode, but never removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82943 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:27:42 +00:00
Dan Gohman
ae03af2663
LBRX no longer has an explicit SrcValueSDNode operand, so the type
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operand is now at index 2, rather than 3. This fixes the
"Invalid child # of SDNode!" failures on PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82942 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:17:47 +00:00
Chris Lattner
9b1de95593
simplify some code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:46:50 +00:00
Chris Lattner
42ebefae8e
The bitcast case is not needed here: instcombine turns icmp(bitcast(x), null) -> icmp(x, null) already.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:42:46 +00:00
Chris Lattner
06e4052699
calls are already unmovable, malloc doesn't need a special case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82933 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:36:19 +00:00
Chris Lattner
32c0d2255f
calls to external functions are already marked overdefined, special casing
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malloc isn't needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:35:11 +00:00
Chris Lattner
4412d04876
calls are already handled, malloc doesn't need a special case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82931 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:33:46 +00:00
Nick Lewycky
ae05e7d945
Round out the API for the new optimization flags.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:33:04 +00:00
Chris Lattner
68b1bbbc55
calls are rejected above, no need to special case malloc here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82929 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:31:39 +00:00
Chris Lattner
439044f4f9
remove special handling of bitcast(malloc), it will be handled
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when the loop inspects the bitcast operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82928 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:29:28 +00:00
Chris Lattner
2a9325ff2f
unlike the malloc instruction, "malloc" calls do not claim to be readonly, just nounwind.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82927 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 21:23:38 +00:00
Chris Lattner
213cd61fa7
allow pushing icmps through phis with multiple uses and across critical edges.
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These are important to push up to encourage jump threading. This shrinks 176.gcc a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 20:46:36 +00:00
Chris Lattner
c6df8f4d5f
Enhance the previous fix for PR4895 to allow more values than just
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simple constants for the true/false value of the select. We now
do phi translation etc. This really fixes PR4895 :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82917 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 20:18:49 +00:00
Chris Lattner
5d1704ddbf
implement PR4895, by making FoldOpIntoPhi handle select conditions
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that are phi nodes. Also tighten up FoldOpIntoPhi to treat constantexpr
operands to phis just like other variables, avoiding moving constantexpr
computations around.
Patch by Daniel Dunbar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82913 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 19:57:57 +00:00
Tilmann Scheller
8ff95de83c
Use explicit structs instead of std::pair to map callee saved regs to spill slots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 17:58:47 +00:00
Dan Gohman
630c84a685
Delete a bogus comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82908 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 17:50:44 +00:00
Dan Gohman
83d577490b
Fix SCEVExpander's canonical addrec expansion code to work on loops that
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aren't in canonical loop-simplify form, since it doesn't itself depend
on LoopSimplify. This means handling loops without preheaders and loops
with multiple backedges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 17:46:40 +00:00
Dan Gohman
f37cfed791
Grab an LLVM Context from an instruction that exists rather than one
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that is deleted in some situations. This fixes a use-after-free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82903 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 16:10:30 +00:00
Dan Gohman
e6fe67b2fb
Tell ScalarEvolution to forget everything it knows about a loop before
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rotating the loop, since loop rotation is a very significant change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82901 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:37:03 +00:00
Dan Gohman
6afea253e0
Micro-optimize DerivedType::dropAllTypeUses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82900 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:32:21 +00:00
Dan Gohman
00cb67359f
Instead of testing whether an instruction dominates the loop preheader,
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test whether it properly dominates the loop header. This is equivalent
when the loop has a preheader, and has the advantage of working when
the loop doesn't have a preheader. Since IVUsers doesn't Require
LoopSimplify, the loop isn't guaranteed to have a preheader.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:30:00 +00:00
Dan Gohman
6e70e31810
Add a properlyDominates member function to ScalarEvolution.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82898 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:26:03 +00:00
Dan Gohman
59faf04a5d
Remove a redundant #include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:21:52 +00:00
Torok Edwin
d7830d595d
Avoid using mutex locks if not in multithreaded mode by using a SmartScopedMutex
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in RegisterStatistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82896 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 11:08:03 +00:00
Evan Cheng
e298ab26b1
Enable pre-regalloc load / store multiple pass for Thumb2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82893 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 09:46:04 +00:00
Nick Lewycky
513869453b
Remove dead code from this function and optimize. Update its corresponding
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LangRef entry too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82890 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 07:55:32 +00:00
Nick Lewycky
6776064d19
Instruction::clone does not need to take an LLVMContext&. Remove that and
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update all the callers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 07:38:41 +00:00
Chris Lattner
81f46d9ce1
remove support for "NoSub" from regex. It seems like a minor optimization
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and makes the API more annoying. Add a Regex::getNumMatches() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 21:27:04 +00:00
Dan Gohman
76926b6789
Fix SimplifyLibCalls to transfer attributes from callees rather than
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calls, since direct calls don't always reflect the attributes of their
callees.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 18:10:13 +00:00
Dan Gohman
c70c37794f
Fix a case where ScalarEvolution was expanding pointer arithmetic
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to inttoptr/ptrtoint unnecessarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 16:11:57 +00:00
Duncan Sands
3548ea8e90
For the NSWSub support in the builder to actually be useable,
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there need to be corresponding changes to the constant folders,
done in this patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 15:35:35 +00:00
Dan Gohman
11eab02b77
Convert comparisons like (x == infinity) to (x >= infinity) on targets
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where FCMP_OEQ is not legal and FCMP_OGE is, such as x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82861 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 15:24:17 +00:00
Evan Cheng
72c158f908
Really remove this option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82838 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 02:49:49 +00:00
Evan Cheng
8981572662
Remove a couple of unused command line options.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82837 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 02:45:45 +00:00
Evan Cheng
8f05c1004a
Add comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 02:43:36 +00:00
Dan Gohman
45094e34bc
Don't hoist or sink instructions with physreg uses if the physreg is
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allocatable. Even if it doesn't appear to have any defs, it may latter
on after register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 02:34:00 +00:00
Dan Gohman
a8fb336c2e
Unbreak MachineLICM for instructions that reference RIP on x86-64 too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:58:45 +00:00
Dan Gohman
a23643d5b7
Rename ConstantFP's getInf to getInfinity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:40:21 +00:00
Dan Gohman
4b2ebc1928
Move MachineMemOperand::getAlignment out of line, to avoid needing
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MathExtras.h in MachineMemOperand.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82822 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:33:20 +00:00
Daniel Dunbar
295a8089cd
Remove unused variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:26:56 +00:00
Dan Gohman
79cb840136
Transform pow(x, 0.5) to (x == -inf ? inf : fabs(sqrt(x))), which is
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typically faster then doing a general pow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:10:17 +00:00
Dan Gohman
f344f7f008
Add a ConstantFP::getInf utility function for creating infinity ConstantFPs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82818 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:00:48 +00:00
Dan Gohman
19778e7558
Fix MachineSink to be able to sink instructions that use physical registers
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which have no defs anywhere in the function. In particular, this fixes sinking
of instructions that reference RIP on x86-64, which is currently being modeled
as a register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82815 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 22:53:29 +00:00
Anton Korobeynikov
d1c37f5b20
Regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82814 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 22:53:17 +00:00
Dan Gohman
2bf0649e05
Simplify a few more uses of reg_iterator.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82812 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 22:26:13 +00:00
Dan Gohman
29438d13e0
Simplify this code by using use_iterator instead of reg_iterator
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and skipping the defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 22:24:52 +00:00
Evan Cheng
eef490f459
Code clean up and prepare for Thumb2 support. No functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82805 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 21:44:53 +00:00