Dan Gohman
1dcad96dc6
Don't split critical edges during the AddUsersIfInteresting phase
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of LSR. This makes the AddUsersIfInteresting phase of LSR a pure
analysis instead of a phase that potentially does CFG modifications.
The conditions where this code would actually perform a split are
rare, and in the cases where it actually would do a split the split
is usually undone by CodeGenPrepare, and in cases where splits
actually survive into codegen, they appear to hurt more often than
they help.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-02 05:36:01 +00:00
Chris Lattner
c650f1f141
'The attached patch fixes an issue where llc -march=cpp fails with
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"Invalid primitive type" on input containing the x86_fp80 type.'
Patch by Collin Winter!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 23:54:26 +00:00
Dan Gohman
7e5440404b
Change the description string of the LoopInfo pass.
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"Construction" makes it sound like a pass that might
modify the CFG to construct natural loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70580 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 21:58:05 +00:00
Bob Wilson
5ee24e54d7
Allow CONCAT_VECTORS nodes to be legal or have custom lowering for some targets.
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Changes to take advantage of this will come later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70560 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 17:55:32 +00:00
Dan Gohman
cf5ab82022
Actually insert inserted instructions into the InsertedValues map.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70557 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 17:13:31 +00:00
Dan Gohman
9f2d671b15
Make RequiresTypeConversion canonicalize the types before calling the
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target hooks canLosslesslyBitCastTo and isTruncateFree. This allows
targets to avoid worrying about handling all combinations of integer
and pointer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 17:07:43 +00:00
Dan Gohman
9032b78c98
When printing a SCEVUnknown with pointer type, don't print an
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artificial "ptrtoint", as it tends to clutter up complicated
expressions. The cast operators now print both source and
destination types, which is usually sufficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70554 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 17:02:22 +00:00
Dan Gohman
80dcdee0f4
Short-circuit inttoptr-ptrtoint constant expressions; these aren't
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always folded by the regular constant folder because it doesn't have
TargetData information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 17:00:00 +00:00
Dan Gohman
3d81e31724
Minor whitespace fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70551 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 16:56:32 +00:00
Dan Gohman
99243b3830
Fix an 80-column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70550 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 16:44:56 +00:00
Dan Gohman
10b9479f55
When creating cast scevs, canonicalize the destination type. This
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avoids duplicate scevs that differ only in type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70549 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 16:44:18 +00:00
Dan Gohman
cc2ad058b3
Fix some code to work if TargetLowering is not available.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70546 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 16:29:14 +00:00
Bill Wendling
d5a6381195
Simplify more code and add timer stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 08:40:06 +00:00
Bill Wendling
ff86ef33e2
Simplify more code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 08:35:12 +00:00
Torok Edwin
e3d12854b8
hasSCEV() was declared in ScalarEvolution.h, but never defined. This must have
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gone lost during the pImpl conversion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70536 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 08:33:47 +00:00
Bill Wendling
ef956fc784
Simplify some code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70534 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 08:32:14 +00:00
Bill Wendling
7fa8162f08
Fix whitespace. It was confusing me.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 08:25:13 +00:00
Evan Cheng
5b16cd2cdd
Code clean up. Bye bye PhysRegTracker.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 01:03:49 +00:00
Argyrios Kyrtzidis
9eddfd3687
Fix compilation for some targets other than x86.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70522 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 23:50:26 +00:00
Argyrios Kyrtzidis
a26eae64dd
Make DebugLoc independent of DwarfWriter.
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-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 23:22:31 +00:00
Argyrios Kyrtzidis
19fee415f6
Set FnEnd in JITEmitter::finishFunction to point strictly to the end of function's machine code.
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Don't include memory allocated for global variables during relocations resolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70517 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 23:01:58 +00:00
Jakob Stoklund Olesen
3a155f0e34
Join cross class copies using getCommonSubClass()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70513 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 21:24:03 +00:00
Jakob Stoklund Olesen
ba67d87fe4
getCommonSubClass() - Calculate the largest common sub-class of two register
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classes.
This is implemented as a function rather than a method on TargetRegisterClass
because it is symmetric in its arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 21:23:32 +00:00
Dan Gohman
3d739fe375
Add some comments, and tidy up some whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 20:48:53 +00:00
Dan Gohman
a1af757e0a
Extend ScalarEvolution's getBackedgeTakenCount to be able to
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compute an upper-bound value for the trip count, in addition to
the actual trip count. Use this to allow getZeroExtendExpr and
getSignExtendExpr to fold casts in more cases.
This may eventually morph into a more general value-range
analysis capability; there are certainly plenty of places where
more complete value-range information would allow more folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 20:47:05 +00:00
Evan Cheng
0490dcb1b7
Add a smarter heuristic to determine when to coalesce a virtual register with a physical one. More specifically, it avoid tying a virtual register in the loop with a physical register defined / used outside the loop. When it determines it's not profitable, it will use the physical register as the allocation preference instead.
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This is *not* turned on by default. Testing indicates this is just as likely to pessimize code. The main issue seems to be allocation preference doesn't work effectively. That will change once I've taught register allocator "swapping".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 18:39:57 +00:00
Dan Gohman
4acd12a0cb
Don't try to mix integers and pointers in an icmp instruction
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in getSCEVAtScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 16:40:30 +00:00
Jay Foad
4e5ea553d0
Move helper functions for optimizing division by constant into the APInt
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class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 10:15:35 +00:00
Dan Gohman
78e04d4aa0
Set mayLoad on MOVZX32_NOREXrm8 too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70466 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 03:11:48 +00:00
Dan Gohman
d9c1c85c2a
Fix ScalarEvolution::print to print a value for any Instruction with
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a SCEVable type, not just integer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 01:30:18 +00:00
Evan Cheng
8c1474050d
Mark MOV8mr_NOREX and MOV8rm_NOREX as mayStore / mayLoad respectively.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70461 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 00:58:57 +00:00
Chris Lattner
6c147293d6
fix a regression handling indirect results: these need to be considered
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memory operands otherwise the writebacks get lost when the inline asm
doesn't otherwise have side effects. This fixes rdar://6839427, though
clang really shouldn't generate these anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70455 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 00:48:50 +00:00
Bill Wendling
610079287e
Fix the JIT bindings for ocaml.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 00:43:39 +00:00
Chris Lattner
cf189964d7
remove progname which is never set. PR4085
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70453 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 00:24:33 +00:00
Bill Wendling
98a366d547
Instead of passing in an unsigned value for the optimization level, use an enum,
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which better identifies what the optimization is doing. And is more flexible for
future uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 23:29:43 +00:00
Bill Wendling
b587f9662a
Add support for a character after a command line option. Like '-Os'.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 23:26:16 +00:00
Dale Johannesen
22523ad737
Print correct instruction in dump.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:57:20 +00:00
Nate Begeman
ec8eee2d3a
Fix infinite recursion in the C++ code which handles movddup by making it unnecessary.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70425 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:47:44 +00:00
Dan Gohman
eb3948be16
Implement getSCEVAtScope for SCEV cast expressions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70422 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:29:01 +00:00
Dan Gohman
ac70ceafbc
Generalize the cast-of-addrec folding to handle folding of SCEVs like
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(sext i8 {-128,+,1} to i64) to i64 {-128,+,1}, where the iteration
crosses from negative to positive, but is still safe if the trip
count is within range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70421 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:28:28 +00:00
Dan Gohman
f159ccd1cd
Reword and tidy up some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:01:05 +00:00
Jakob Stoklund Olesen
ce9be2cf5d
MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 20:57:16 +00:00
Dan Gohman
36b8e53fe0
Include the source type in SCEV cast expression debug output, and
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print sext, zext, and trunc, instead of signextend, zeroextend,
and truncate, respectively, for consistency with the main IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70405 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 20:27:52 +00:00
Nate Begeman
a641575828
Update comment, replace theoretically impossible check with an assert.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 18:13:31 +00:00
Dale Johannesen
c9cf35055f
Fix recent regression in gcc.dg/pr26719.c (6835035).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70386 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 16:38:47 +00:00
Evan Cheng
96f3fd9a7f
spillPhysRegAroundRegDefsUses() may have invalidated iterators stored in fixed_ IntervalPtrs. Reset them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70378 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 07:16:34 +00:00
Nate Begeman
5a5ca1519e
Implement review feedback for vector shuffle work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 05:20:52 +00:00
Sanjiv Gupta
a3518a1d6a
Add a public method called getAddressSpace() to the GlobalAddressSDNode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 04:43:24 +00:00
Chris Lattner
672452d5a0
Disable the load-shrinking optimization from looking at
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anything larger than 64-bits, avoiding a crash. This should
really be fixed to use APInts, though type legalization happens
to help us out and we get good code on the attached testcase at
least.
This fixes rdar://6836460
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 03:45:07 +00:00
Dan Gohman
f0aa4850ce
Update comments to reflect the current code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 01:54:20 +00:00