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Author SHA1 Message Date
Dan Gohman
83d577490b Fix SCEVExpander's canonical addrec expansion code to work on loops that 
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
22bf8f21b4 Add dominates and releaseMemory member functions to PostDominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82904 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:39:12 +00:00
Dan Gohman
f37cfed791 Grab an LLVM Context from an instruction that exists rather than one 
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
3479d18b98 Clarify a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82902 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:41:19 +00:00
Dan Gohman
e6fe67b2fb Tell ScalarEvolution to forget everything it knows about a loop before 
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. 
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, 
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. 
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. 
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 
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. 
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
Chris Lattner
9217f6b2e4 rename REG -> REGISTER to make it explicit in the doc. <tt>ify some stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82892 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 08:01:44 +00:00
Chris Lattner
eec96958cd implement and document support for filecheck variables. This 
allows matching and remembering a string and then matching and
verifying that the string occurs later in the file.

Change X86/xor.ll to use this in some cases where the test was
checking for an arbitrary register allocation decision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82891 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 07:56:52 +00:00
Nick Lewycky
513869453b Remove dead code from this function and optimize. Update its corresponding 
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 
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
Nick Lewycky
975f5917a2 Filecheckify this one test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82888 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 06:25:05 +00:00
Nick Lewycky
68cecbde18 Leave a pointer to the documentation so that people don't end up change one but 
not the other in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82887 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 04:57:35 +00:00
Nick Lewycky
2a0ed090f1 Correct the version numbers to match those actually tested for by 
autoconf/AutoRegen.sh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82886 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 04:56:27 +00:00
Nick Lewycky
ec38da42c8 Move the integer type out of 'derived' and into 'primitive'. This permits us 
to explain that derived types are all composed of other types, which primitive
types aren't. Without moving integer out of derived, this wouldn't be true.

Perform a few trivial cleanups; 'i1' went from a link to #t_primitive to
#t_integer (a holdover from when it was a bool type I suppose).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 00:45:11 +00:00
Chris Lattner
81f46d9ce1 remove support for "NoSub" from regex. It seems like a minor optimization 
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
Torok Edwin
282098be84 Speed up clang-only link, by really linking only clang, and not the unittests 
too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 20:18:58 +00:00
Evan Cheng
2fcf85efe7 Remove this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 18:51:37 +00:00
Dan Gohman
76926b6789 Fix SimplifyLibCalls to transfer attributes from callees rather than 
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 
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, 
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 
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
Duncan Sands
b9c129d553 Add methods for creating NSW subtraction, as already exists 
for addition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82860 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 15:21:48 +00:00
Dan Gohman
b7532e2548 Add a comment describing natural loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82859 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 15:09:53 +00:00
Daniel Dunbar
c8e9314a41 "Update" tests for -disable-if-conversion removal. I think branch.ll should just 
be removed, but I XFAIL'd it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82847 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 05:29:36 +00:00
Evan Cheng
72c158f908 Really remove this option. 
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. 
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. 
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
Evan Cheng
9fde6ca2c7 Convert test to filecheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82835 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 02:41:17 +00:00
Dan Gohman
45094e34bc Don't hoist or sink instructions with physreg uses if the physreg is 
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
22cb6579b3 I put the wrong rdar number in this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 01:11:57 +00:00
Dan Gohman
a8fb336c2e Unbreak MachineLICM for instructions that reference RIP on x86-64 too. 
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. 
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 
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. 
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 
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. 
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 
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 
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
Anton Korobeynikov
58cd84dc77 Provide proper masks for neon perfect shuffle table. 
I definitely need to read documentation better :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 22:52:29 +00:00
Dan Gohman
2bf0649e05 Simplify a few more uses of reg_iterator. 
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 
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. 
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
Evan Cheng
483011018e Flip -disable-post-RA-scheduler to -post-RA-scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82803 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 21:38:11 +00:00
Jeffrey Yasskin
b7a8d400be Fix a compile failure introduced by r82675 on MinGW which doesn't have 
setenv().  This patch just disables the test rather than getting putenv() to
work.  Thanks to Sandeep Patel for reporting the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82797 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 21:07:20 +00:00
Dale Johannesen
9d06175a15 Handle sqrt in CannotBeNegativeZero. absf and absl 
appear to be misspellings, removed in favor of fabs*.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82796 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 20:54:50 +00:00