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Commit Graph

52318 Commits

Author SHA1 Message Date
Dan Gohman
eb9dbb2bd2 Micro-optimize DerivedType::dropAllTypeUses.
llvm-svn: 82900
2009-09-27 15:32:21 +00:00
Dan Gohman
16398e3bc0 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.

llvm-svn: 82899
2009-09-27 15:30:00 +00:00
Dan Gohman
b84f5a3421 Add a properlyDominates member function to ScalarEvolution.
llvm-svn: 82898
2009-09-27 15:26:03 +00:00
Dan Gohman
9cc0852f45 Remove a redundant #include.
llvm-svn: 82897
2009-09-27 15:21:52 +00:00
Torok Edwin
dd5b0b7cda Avoid using mutex locks if not in multithreaded mode by using a SmartScopedMutex
in RegisterStatistic.

llvm-svn: 82896
2009-09-27 11:08:03 +00:00
Evan Cheng
ffe6da0734 Enable pre-regalloc load / store multiple pass for Thumb2.
llvm-svn: 82893
2009-09-27 09:46:04 +00:00
Chris Lattner
d66a99e60a rename REG -> REGISTER to make it explicit in the doc. <tt>ify some stuff.
llvm-svn: 82892
2009-09-27 08:01:44 +00:00
Chris Lattner
80d69b5973 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.

llvm-svn: 82891
2009-09-27 07:56:52 +00:00
Nick Lewycky
676778014b Remove dead code from this function and optimize. Update its corresponding
LangRef entry too.

llvm-svn: 82890
2009-09-27 07:55:32 +00:00
Nick Lewycky
d21c325f09 Instruction::clone does not need to take an LLVMContext&. Remove that and
update all the callers.

llvm-svn: 82889
2009-09-27 07:38:41 +00:00
Nick Lewycky
6ea218a96b Filecheckify this one test.
llvm-svn: 82888
2009-09-27 06:25:05 +00:00
Nick Lewycky
18d420fde7 Leave a pointer to the documentation so that people don't end up change one but
not the other in the future.

llvm-svn: 82887
2009-09-27 04:57:35 +00:00
Nick Lewycky
d77653667a Correct the version numbers to match those actually tested for by
autoconf/AutoRegen.sh.

llvm-svn: 82886
2009-09-27 04:56:27 +00:00
Nick Lewycky
c54e1a5528 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).

llvm-svn: 82884
2009-09-27 00:45:11 +00:00
Chris Lattner
b47463f436 remove support for "NoSub" from regex. It seems like a minor optimization
and makes the API more annoying.  Add a Regex::getNumMatches() method.

llvm-svn: 82877
2009-09-26 21:27:04 +00:00
Torok Edwin
9d7a492755 Speed up clang-only link, by really linking only clang, and not the unittests
too.

llvm-svn: 82873
2009-09-26 20:18:58 +00:00
Evan Cheng
eafd25a098 Remove this test.
llvm-svn: 82869
2009-09-26 18:51:37 +00:00
Dan Gohman
0a396aa546 Fix SimplifyLibCalls to transfer attributes from callees rather than
calls, since direct calls don't always reflect the attributes of their
callees.

llvm-svn: 82867
2009-09-26 18:10:13 +00:00
Dan Gohman
60964df13d Fix a case where ScalarEvolution was expanding pointer arithmetic
to inttoptr/ptrtoint unnecessarily.

llvm-svn: 82864
2009-09-26 16:11:57 +00:00
Duncan Sands
ec5d64fdd5 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.

llvm-svn: 82862
2009-09-26 15:35:35 +00:00
Dan Gohman
6899a1cd58 Convert comparisons like (x == infinity) to (x >= infinity) on targets
where FCMP_OEQ is not legal and FCMP_OGE is, such as x86. 

llvm-svn: 82861
2009-09-26 15:24:17 +00:00
Duncan Sands
64511993cb Add methods for creating NSW subtraction, as already exists
for addition.

llvm-svn: 82860
2009-09-26 15:21:48 +00:00
Dan Gohman
2351c2f8b7 Add a comment describing natural loops.
llvm-svn: 82859
2009-09-26 15:09:53 +00:00
Daniel Dunbar
923dc62615 "Update" tests for -disable-if-conversion removal. I think branch.ll should just
be removed, but I XFAIL'd it for now.

llvm-svn: 82847
2009-09-26 05:29:36 +00:00
Evan Cheng
48479d0c8f Really remove this option.
llvm-svn: 82838
2009-09-26 02:49:49 +00:00
Evan Cheng
1088c37212 Remove a couple of unused command line options.
llvm-svn: 82837
2009-09-26 02:45:45 +00:00
Evan Cheng
c4e3168b65 Add comment.
llvm-svn: 82836
2009-09-26 02:43:36 +00:00
Evan Cheng
0b55bde4b3 Convert test to filecheck.
llvm-svn: 82835
2009-09-26 02:41:17 +00:00
Dan Gohman
7f73a0c1e4 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.

llvm-svn: 82834
2009-09-26 02:34:00 +00:00
Dan Gohman
8e056e8b9b I put the wrong rdar number in this test.
llvm-svn: 82829
2009-09-26 01:11:57 +00:00
Dan Gohman
487152872b Unbreak MachineLICM for instructions that reference RIP on x86-64 too.
llvm-svn: 82825
2009-09-25 23:58:45 +00:00
Dan Gohman
d585364b0b Rename ConstantFP's getInf to getInfinity.
llvm-svn: 82823
2009-09-25 23:40:21 +00:00
Dan Gohman
ba2b2eb3fe Move MachineMemOperand::getAlignment out of line, to avoid needing
MathExtras.h in MachineMemOperand.h.

llvm-svn: 82822
2009-09-25 23:33:20 +00:00
Daniel Dunbar
99d02b7818 Remove unused variable.
llvm-svn: 82821
2009-09-25 23:26:56 +00:00
Dan Gohman
d564cd42d9 Transform pow(x, 0.5) to (x == -inf ? inf : fabs(sqrt(x))), which is
typically faster then doing a general pow.

llvm-svn: 82819
2009-09-25 23:10:17 +00:00
Dan Gohman
01b2c857ed Add a ConstantFP::getInf utility function for creating infinity ConstantFPs.
llvm-svn: 82818
2009-09-25 23:00:48 +00:00
Dan Gohman
7c98ffa2b6 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.

llvm-svn: 82815
2009-09-25 22:53:29 +00:00
Anton Korobeynikov
35078c311e Regenerate
llvm-svn: 82814
2009-09-25 22:53:17 +00:00
Anton Korobeynikov
4e921137da Provide proper masks for neon perfect shuffle table.
I definitely need to read documentation better :(

llvm-svn: 82813
2009-09-25 22:52:29 +00:00
Dan Gohman
090f23c54c Simplify a few more uses of reg_iterator.
llvm-svn: 82812
2009-09-25 22:26:13 +00:00
Dan Gohman
7b662b75a7 Simplify this code by using use_iterator instead of reg_iterator
and skipping the defs.

llvm-svn: 82811
2009-09-25 22:24:52 +00:00
Evan Cheng
c0edc5ee28 Code clean up and prepare for Thumb2 support. No functionality changes.
llvm-svn: 82805
2009-09-25 21:44:53 +00:00
Evan Cheng
ac17fbc5fe Flip -disable-post-RA-scheduler to -post-RA-scheduler.
llvm-svn: 82803
2009-09-25 21:38:11 +00:00
Jeffrey Yasskin
ae5a12200c 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.

llvm-svn: 82797
2009-09-25 21:07:20 +00:00
Dale Johannesen
53c365d807 Handle sqrt in CannotBeNegativeZero. absf and absl
appear to be misspellings, removed in favor of fabs*.

llvm-svn: 82796
2009-09-25 20:54:50 +00:00
Dan Gohman
0ac693a89e Improve MachineMemOperand handling.
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
   This eliminates MachineInstr's std::list member and allows the data to be
   created by isel and live for the remainder of codegen, avoiding a lot of
   copying and unnecessary translation. This also shrinks MemSDNode.
 - Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated
   fields for MachineMemOperands.
 - Change MemSDNode to have a MachineMemOperand member instead of its own
   fields with the same information. This introduces some redundancy, but
   it's more consistent with what MachineInstr will eventually want.
 - Ignore alignment when searching for redundant loads for CSE, but remember
   the greatest alignment.

Target-specific code which previously used MemOperandSDNodes with generic
SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range
so that the SelectionDAG framework knows that MachineMemOperand information
is available.

llvm-svn: 82794
2009-09-25 20:36:54 +00:00
Dan Gohman
0c4e55a2f8 Rename getTargetNode to getMachineNode, for consistency with the
naming scheme used in SelectionDAG, where there are multiple kinds
of "target" nodes, but "machine" nodes are nodes which represent
a MachineInstr.

llvm-svn: 82790
2009-09-25 18:54:59 +00:00
David Goodwin
89f5854ddd Finish scheduling itineraries for NEON.
llvm-svn: 82788
2009-09-25 18:38:29 +00:00
Dale Johannesen
228874127f Add readonly to some sin and cos calls; transformations
being checked aren't valid without it.

llvm-svn: 82786
2009-09-25 18:15:29 +00:00
Victor Hernandez
f772c0b8b2 Revert 82694 "Auto-upgrade malloc instructions to malloc calls." because it causes regressions in the nightly tests.
llvm-svn: 82784
2009-09-25 18:11:52 +00:00