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Author SHA1 Message Date
Dan Gohman
d57099a9eb Actually insert inserted instructions into the InsertedValues map. 
llvm-svn: 70557
 2009-05-01 17:13:31 +00:00
Dan Gohman
daa3a9f38c Add an accessor method to allow clients to test if a given expression 
is associated with a SCEV expansion.

llvm-svn: 70556
 2009-05-01 17:08:34 +00:00
Dan Gohman
bdc33dc988 Make RequiresTypeConversion canonicalize the types before calling the 
target hooks canLosslesslyBitCastTo and isTruncateFree. This allows
targets to avoid worrying about handling all combinations of integer
and pointer types.

llvm-svn: 70555
 2009-05-01 17:07:43 +00:00
Dan Gohman
0dc2b769b0 When printing a SCEVUnknown with pointer type, don't print an 
artificial "ptrtoint", as it tends to clutter up complicated
expressions. The cast operators now print both source and
destination types, which is usually sufficient.

llvm-svn: 70554
 2009-05-01 17:02:22 +00:00
Dan Gohman
bc336eab6e Short-circuit inttoptr-ptrtoint constant expressions; these aren't 
always folded by the regular constant folder because it doesn't have
TargetData information.

llvm-svn: 70553
 2009-05-01 17:00:00 +00:00
Dan Gohman
ac4de6a92e Make SCEVExpander::addInsertedValue able to accept Values, not just 
Instructions.

llvm-svn: 70552
 2009-05-01 16:58:31 +00:00
Dan Gohman
9dd3e99217 Minor whitespace fix. 
llvm-svn: 70551
 2009-05-01 16:56:32 +00:00
Dan Gohman
7eab4d2fa2 Fix an 80-column violation. 
llvm-svn: 70550
 2009-05-01 16:44:56 +00:00
Dan Gohman
24b592972d When creating cast scevs, canonicalize the destination type. This 
avoids duplicate scevs that differ only in type.

llvm-svn: 70549
 2009-05-01 16:44:18 +00:00
Dan Gohman
908d546da3 Fix a compiler warning on hosts where uint64_t isn't unsigned long long. 
llvm-svn: 70548
 2009-05-01 16:33:33 +00:00
Dan Gohman
a55fce998e Fix some code to work if TargetLowering is not available. 
llvm-svn: 70546
 2009-05-01 16:29:14 +00:00
Bill Wendling
2da6a65b62 Simplify more code and add timer stuff. 
llvm-svn: 70539
 2009-05-01 08:40:06 +00:00
Bill Wendling
0bab670012 Simplify more code. 
llvm-svn: 70537
 2009-05-01 08:35:12 +00:00
Torok Edwin
63c28133ae hasSCEV() was declared in ScalarEvolution.h, but never defined. This must have 
gone lost during the pImpl conversion.

llvm-svn: 70536
 2009-05-01 08:33:47 +00:00
Bill Wendling
662dfea32e Simplify some code. 
llvm-svn: 70534
 2009-05-01 08:32:14 +00:00
Bill Wendling
2f01fd9bf1 Fix whitespace. It was confusing me. 
llvm-svn: 70533
 2009-05-01 08:25:13 +00:00
Mike Stump
9581b0eb4c Lets install the manual page with install-clang! Radar 6838692 
llvm-svn: 70529
 2009-05-01 01:47:55 +00:00
Evan Cheng
d6a780a181 Code clean up. Bye bye PhysRegTracker. 
llvm-svn: 70524
 2009-05-01 01:03:49 +00:00
Argyrios Kyrtzidis
123a0fb56f Fix compilation for some targets other than x86. 
llvm-svn: 70522
 2009-04-30 23:50:26 +00:00
Stefanus Du Toit
a1923eed8c Add a comment to refer to the section of the programmer's manual that explains what the pointer tagging in Use is for. 
llvm-svn: 70521
 2009-04-30 23:28:50 +00:00
Argyrios Kyrtzidis
9956976b76 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.)

llvm-svn: 70520
 2009-04-30 23:22:31 +00:00
Argyrios Kyrtzidis
ad07acf07a 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.

llvm-svn: 70517
 2009-04-30 23:01:58 +00:00
Jeffrey Yasskin
7263dc71e2 Add a mention of TypeBuilder to the programmer's manual, and clean up the class 
comment a bit.

llvm-svn: 70515
 2009-04-30 22:33:41 +00:00
Jakob Stoklund Olesen
17d292db73 Join cross class copies using getCommonSubClass() 
llvm-svn: 70513
 2009-04-30 21:24:03 +00:00
Jakob Stoklund Olesen
bcb5d651a3 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.

llvm-svn: 70512
 2009-04-30 21:23:32 +00:00
Jakob Stoklund Olesen
fddd4c600b 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.

llvm-svn: 70511
 2009-04-30 21:22:44 +00:00
Dan Gohman
6d5f693ede Add some comments, and tidy up some whitespace. 
llvm-svn: 70510
 2009-04-30 20:48:53 +00:00
Dan Gohman
3c9f4f765c 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.

llvm-svn: 70509
 2009-04-30 20:47:05 +00:00
Evan Cheng
a4c868f1d4 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".

llvm-svn: 70503
 2009-04-30 18:39:57 +00:00
Bob Wilson
42101a805b 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.

llvm-svn: 70502
 2009-04-30 18:26:19 +00:00
Bob Wilson
e762abe486 Remove unnecessary "class" keywords. 
llvm-svn: 70499
 2009-04-30 17:46:20 +00:00
Bob Wilson
dd9b184c19 Change forward declaration of MultiClass to use the "struct" keyword instead 
of "class", so that it matches the subsequent definition.

llvm-svn: 70498
 2009-04-30 17:35:11 +00:00
Torok Edwin
1400b41bf1 Make dataflow iteration possible on Value*, not only on User*: df_ext_iterator<Value*, SmallPtrSet<const Value*, 16> > 
llvm-svn: 70496
 2009-04-30 17:09:22 +00:00
Dan Gohman
25d21786d3 Don't try to mix integers and pointers in an icmp instruction 
in getSCEVAtScope.

llvm-svn: 70495
 2009-04-30 16:40:30 +00:00
Nick Lewycky
9219a96e13 Oops! Missed a file in my last commit. 
llvm-svn: 70491
 2009-04-30 15:29:26 +00:00
Nick Lewycky
503cfd4ace 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.

llvm-svn: 70490
 2009-04-30 15:24:09 +00:00
Jay Foad
9768cabf4a Move helper functions for optimizing division by constant into the APInt 
class.

llvm-svn: 70488
 2009-04-30 10:15:35 +00:00
Dan Gohman
8a0e27efb2 Set mayLoad on MOVZX32_NOREXrm8 too. 
llvm-svn: 70466
 2009-04-30 03:11:48 +00:00
Dan Gohman
fac9c52fd8 Fix ScalarEvolution::print to print a value for any Instruction with 
a SCEVable type, not just integer types.

llvm-svn: 70463
 2009-04-30 01:30:18 +00:00
Evan Cheng
b7d41a6680 Mark MOV8mr_NOREX and MOV8rm_NOREX as mayStore / mayLoad respectively. 
llvm-svn: 70461
 2009-04-30 00:58:57 +00:00
Bill Wendling
9a6ed80b64 Remove unused flags. 
llvm-svn: 70459
 2009-04-30 00:57:51 +00:00
Chris Lattner
794fb5b4b3 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.

llvm-svn: 70455
 2009-04-30 00:48:50 +00:00
Bill Wendling
68ac27094d Fix the JIT bindings for ocaml. 
llvm-svn: 70454
 2009-04-30 00:43:39 +00:00
Chris Lattner
25991c4e7d remove progname which is never set. PR4085 
llvm-svn: 70453
 2009-04-30 00:24:33 +00:00
Bill Wendling
4df71cd268 Error out with bad optimization level specified. 
llvm-svn: 70449
 2009-04-29 23:46:43 +00:00
Bill Wendling
6e33661382 Remove LTO optimization level. 
llvm-svn: 70445
 2009-04-29 23:40:42 +00:00
Bill Wendling
40a162f75f 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.

llvm-svn: 70440
 2009-04-29 23:29:43 +00:00
Bill Wendling
3f4c6171d1 Add support for a character after a command line option. Like '-Os'. 
llvm-svn: 70437
 2009-04-29 23:26:16 +00:00
Dale Johannesen
be38eaf1d4 Print correct instruction in dump. 
llvm-svn: 70427
 2009-04-29 22:57:20 +00:00
Nate Begeman
b407809122 Fix infinite recursion in the C++ code which handles movddup by making it unnecessary. 
llvm-svn: 70425
 2009-04-29 22:47:44 +00:00