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Author SHA1 Message Date
Stefanus Du Toit
c26672a2d2 Add a comment to refer to the section of the programmer's manual that explains what the pointer tagging in Use is for. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70521 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 23:28:50 +00:00
Argyrios Kyrtzidis
a26eae64dd Make DebugLoc independent of DwarfWriter. 
-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. 
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
Jeffrey Yasskin
714257f5de Add a mention of TypeBuilder to the programmer's manual, and clean up the class 
comment a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70515 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 22:33:41 +00:00
Jakob Stoklund Olesen
3a155f0e34 Join cross class copies using getCommonSubClass() 
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 
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
Jakob Stoklund Olesen
7afcc6aa27 Slightly change TableGen's definition of a register subclass. 
A subclass is allowed to have a larger spill size than the superclass, and the
spill alignment must be a multiple of the superclass alignment. This causes
the following new subclass relations:

=== Alpha ===
F4RC -> F8RC

=== PPC ===
F4RC -> F8RC

=== SPU ===
R8C -> R16C -> R32C/R32FP -> R64C/R64FP -> GPRC/VECREG

=== X86 ===
FR32  -> FR64  -> VR128
RFP32 -> RFP64 -> RFP80

These subclass relations are consistent with the behaviour of -join-cross-class-copies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70511 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 21:22:44 +00:00
Dan Gohman
3d739fe375 Add some comments, and tidy up some whitespace. 
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 
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. 
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
Bob Wilson
440548dd1f Rename the CurMultiClass formal parameter of TGParser::AddSubMultiClass 
so that it doesn't shadow the instance variable of the same name.
Make the parameter names in method declarations match the definitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70502 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 18:26:19 +00:00
Bob Wilson
1d512df4a9 Remove unnecessary "class" keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 17:46:20 +00:00
Bob Wilson
293b13350c Change forward declaration of MultiClass to use the "struct" keyword instead 
of "class", so that it matches the subsequent definition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70498 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 17:35:11 +00:00
Torok Edwin
7f09dd2f63 Make dataflow iteration possible on Value*, not only on User*: df_ext_iterator<Value*, SmallPtrSet<const Value*, 16> > 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70496 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 17:09:22 +00:00
Dan Gohman
4acd12a0cb Don't try to mix integers and pointers in an icmp instruction 
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
Nick Lewycky
1d621f71c8 Oops! Missed a file in my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70491 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 15:29:26 +00:00
Nick Lewycky
195bea3498 Allow a user of libLTO to specify the full pathname of the gcc executable to 
run when assembling.

Wire this up to the gold plugin. You can now pass --plugin-opt gcc=/foo/bar/gcc
and it will run that gcc instead of looking for it on the path.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70490 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 15:24:09 +00:00
Jay Foad
4e5ea553d0 Move helper functions for optimizing division by constant into the APInt 
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. 
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 
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. 
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
Bill Wendling
581b93415e Remove unused flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70459 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 00:57:51 +00:00
Chris Lattner
6c147293d6 fix a regression handling indirect results: these need to be considered 
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. 
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 
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
8dc85ddf80 Error out with bad optimization level specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70449 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 23:46:43 +00:00
Bill Wendling
b8cb0bb08c Remove LTO optimization level. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70445 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 23:40:42 +00:00
Bill Wendling
98a366d547 Instead of passing in an unsigned value for the optimization level, use an enum, 
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'. 
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. 
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. 
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. 
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 
(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. 
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
Bill Wendling
a7e326b0a9 Don't use 'false' for 'fast isel' here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 21:22:00 +00:00
Dan Gohman
3e0e31b261 Fix this test to match the new output from scalar-evolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70410 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 21:06:20 +00:00
Jakob Stoklund Olesen
ce9be2cf5d MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const. 
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 
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. 
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). 
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
Sanjiv Gupta
b27fa0afe2 Add directive to declare external globals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 08:23:18 +00:00
Evan Cheng
96f3fd9a7f spillPhysRegAroundRegDefsUses() may have invalidated iterators stored in fixed_ IntervalPtrs. Reset them. 
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
Chris Lattner
3a33f4903a testcase for PR4082 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 06:46:27 +00:00
Nate Begeman
5a5ca1519e Implement review feedback for vector shuffle work. 
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. 
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 
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. 
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
Dan Gohman
1e59aa1332 Add some more doxygen comments to SCEVAddRec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70354 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 00:59:03 +00:00
Evan Cheng
1c2f6da331 Determine allocation 'preference' with right register class. I haven't seen this changing codegen so no test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70351 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 00:42:27 +00:00
Bill Wendling
5e5cb7985d The second part of the change from -fast to -O#. This changes the JIT to accept 
an optimization level instead of a simple boolean telling it to generate code
"fast" or the other type of "fast".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 00:32:19 +00:00