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43391 Commits

Author SHA1 Message Date
Chris Lattner
21d272874b tidy up, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 23:32:42 +00:00
Chris Lattner
749ba48fab with the picbase nonsense starting to be figured out, implement 
lowering support for MovePCtoLR[8].  Down to 4 failures again.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119090 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:56:43 +00:00
Chris Lattner
142b531e02 move the pic base symbol stuff up to MachineFunction 
since it is trivial and will be shared between ppc and x86.
This substantially simplifies the X86 backend also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:48:15 +00:00
Chris Lattner
4fd0ea0166 simplify getPICBaseSymbol a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119088 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:37:11 +00:00
Chris Lattner
6135a96792 reimplement ppc asmprinter "toc" handling to use a VariantKind 
on the operand, required for .o file writing and fixing 
the PowerPC/mult-alt-generic-powerpc64.ll failure with the new
instprinter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119087 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:22:59 +00:00
Chris Lattner
2ead458ae8 lower PPC::MFCRpseud when transforming to MC, avoiding calling 
the aborting printSpecial() method.  This gets us to 8 failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119084 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:03:15 +00:00
Chris Lattner
959fb3dd5c make the stubbed-out printer methods abort instead of 
printing nothing.  This gets us back up to 24 failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:54:34 +00:00
Chris Lattner
b2e477f546 wire up a few more things, down to 4 test failures, all 
about handling $stub, lo/hi etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:51:37 +00:00
Chris Lattner
fd6688f59a properly wire up the instprinter to the ppc64 backend, down to 5 failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119081 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:42:53 +00:00
Chris Lattner
2e35248f14 implement pretty printing support for the various pseudo 
ops the asmprinter supported, fixing PowerPC/rlwimi2.ll
among others.  Down to 20 failures.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:39:51 +00:00
Chris Lattner
58d014f603 Wire up symbol hi/lo printing. We don't print hi()/lo(), but this gets 
us further along.  Only 28 failures now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119079 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:33:07 +00:00
Chris Lattner
1520fd6095 implement basic support for symbol operand lowering, 
and printing support for call operands.  Down to 77 failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119078 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:20:46 +00:00
Chris Lattner
77ec256be6 trim #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119075 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:16:04 +00:00
Chris Lattner
a7217c824d switch PPC to a simplified MCInstLowering model. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119074 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:12:33 +00:00
Rafael Espindola
55d02f3a13 Fix another case of a .comm directive without a corresponding .type 
directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:11:16 +00:00
Chris Lattner
8d63ba8260 fix PPC.h to not pull in TargetMachine.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:09:28 +00:00
Chris Lattner
30e2cc254b rename LowerToMCInst -> LowerARMMachineInstrToMCInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119071 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:00:02 +00:00
Chris Lattner
1612a619f1 even more simplifications. ARM MCInstLowering is now just 
a single function instead of a class.  It doesn't need the
complexity that X86 does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:58:38 +00:00
Chris Lattner
b16ddb1fb3 more shrinkification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119068 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:41:53 +00:00
Chris Lattner
de36af4c15 more simplifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:40:08 +00:00
Chris Lattner
112f2390e1 simplify and tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:31:06 +00:00
Chris Lattner
fdb2ded765 implement basic support for memory operands and crbit operands, 
this fixes 3 more ppc tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119065 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:22:56 +00:00
Chris Lattner
99889132f3 implement several trivial operand printers, reducing 
failures in CodeGen/PowerPC from 120 -> 117


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119063 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:11:21 +00:00
Chris Lattner
0d1b7d9e3d Implement support for printing register and immediate operands, 
add support for darwin vs aix syntax.  We now can print instructions
like this:

	add r3, r3, r4
	blr 

and (in aix mode):
	add 3, 3, 4
	blr 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 20:02:39 +00:00
Chris Lattner
293ef9ae0f stub out PPCMCInstLowering, add a new option that uses it and the new 
instprinter when -enable-ppc-inst-printer is passed to llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 19:53:02 +00:00
Rafael Espindola
765fb1a446 Fix the type of a symbol created with .comm and no corresponding .type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 19:40:55 +00:00
Chris Lattner
60d5b5fdee stub out a powerpc MCInstPrinter implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 19:40:38 +00:00
Chris Lattner
1139691e3a move all the target's asmprinters into the main target. The piece 
that should be split out is the InstPrinter (if a target is mc'ized).
This change makes all the targets be consistent.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119056 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:43:56 +00:00
Duncan Sands
eff0581583 If dom tree information is available, make it possible to pass 
it to get better phi node simplification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119055 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:36:10 +00:00
Chris Lattner
0094345184 move PPCAsmPrinter into the main PPC library, like ARM and X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119054 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:33:33 +00:00
Chris Lattner
02bc19438f fix cmake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:27:11 +00:00
Chris Lattner
c476ed93f1 remove JIT support from the Alpha backend. The JIT will be moving to MC, 
and the Alpha backend isn't MCized yet.  Approved by Andrew.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119051 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:24:41 +00:00
Chris Lattner
b0269cd2c8 random acts of tidiness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119049 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:09:50 +00:00
Duncan Sands
cd6636c737 Teach InstructionSimplify about phi nodes. I chose to have it simply 
offload the work to hasConstantValue rather than do something more
complicated (such handling mutually recursive phis) because (1) it is
not clear it is worth it; and (2) if it is worth it, maybe such logic
would be better placed in hasConstantValue.  Adjust some GVN tests
which are now cleaned up much further (eg: all phi nodes are removed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 13:30:18 +00:00
Duncan Sands
c0362d5c6e Boost the power of phi node constant folding slightly: if all 
operands are the phi node itself or undef, then return undef.
This logic already existed at a higher level so in practice it
shouldn't make the slightest difference.  Note that this code
could be replaced by a call to PN->hasConstantValue().  However
since we bail out the moment we see a non-constant operand, it
is more efficient to have a specialized version of that logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 12:53:18 +00:00
Duncan Sands
12a86f5b31 Strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 11:23:23 +00:00
Owen Anderson
83da6cd5e2 Second attempt at providing correct encodings for Thumb2 binary operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 05:37:38 +00:00
Rafael Espindola
1f4f9e3d35 Handle a peculiar comdat case: Creating a section with an undefined 
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 04:17:37 +00:00
Rafael Espindola
ab4a7afe98 Simplify getSymbolIndexInSymbolTable by setting the actual index of 
the symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119022 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 03:12:24 +00:00
Rafael Espindola
7e528a1724 Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 01:34:31 +00:00
Peter Collingbourne
948cf0289f Recognise 32-bit ror-based bswap implementation used by uclibc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 19:54:30 +00:00
Peter Collingbourne
983611836c Support ; as asm separator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 19:54:23 +00:00
Duncan Sands
096aa79276 Generalize the reassociation transform in SimplifyCommutative (now renamed to 
SimplifyAssociativeOrCommutative) "(A op C1) op C2" -> "A op (C1 op C2)",
which previously was only done if C1 and C2 were constants, to occur whenever
"C1 op C2" simplifies (a la InstructionSimplify).  Since the simplifying operand
combination can no longer be assumed to be the right-hand terms, consider all of
the possible permutations.  When compiling "gcc as one big file", transform 2
(i.e. using right-hand operands) fires about 4000 times but it has to be said
that most of the time the simplifying operands are both constants.  Transforms
3, 4 and 5 each fired once.  Transform 6, which is an existing transform that
I didn't change, never fired.  With this change, the testcase is now optimized
perfectly with one run of instcombine (previously it required instcombine +
reassociate + instcombine, and it may just have been luck that this worked).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119002 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 15:10:37 +00:00
Duncan Sands
768b87c085 Fix typo pointed out by Trevor Harmon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119001 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 12:16:27 +00:00
Bill Wendling
c93989a060 Comment out the defms until they're activated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119000 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 11:20:05 +00:00
Bill Wendling
ddc918b379 Add uses of the *_ldst_multi multiclasses. These aren't used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 10:57:02 +00:00
Bill Wendling
1f4abcfa5c Convert the modes to lower case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118998 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 10:43:34 +00:00
Bill Wendling
04863d06fb Minor cleanups: 
- Get the opcode once.
- Add a ParserMatchClass to reglist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 10:40:19 +00:00
Bill Wendling
6c470b806f Add *_ldst_mult multiclasses to the ARM back-end. These will be used in the 
future to separate out the ia, ib, da, db variants of the load/store multiple
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 09:09:38 +00:00
Daniel Dunbar
115a3dd066 MC: Simplify Mach-O and ELF object writer implementations. 
- What was I thinking?????

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 07:33:40 +00:00
Wesley Peck
90eff7337d Fixed error and re-enabled MBlaze MC disassembler tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 05:48:21 +00:00
Evan Cheng
c47f7d643e Conditional moves are slightly more expensive than moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118985 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 05:14:20 +00:00
Rafael Espindola
e9c0ff2a76 Fix warning and add support for printing gnu_unique_object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 04:55:06 +00:00
Rafael Espindola
e13a0ff8ac Parse and record the gnu_unique_object type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 04:51:02 +00:00
Rafael Espindola
c50a0fd7cb Parse and remember discriminators in .loc line. I try to output them with 
another patch.
This lets us parse a bit more of the gcc 4.5 output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 03:18:27 +00:00
Daniel Dunbar
48dd875be1 JIT: More nitty style tweakage, aka territory marking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 02:48:57 +00:00
Daniel Dunbar
afd693cff3 report_fatal_error: Simplify a possible ambiguity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 02:48:51 +00:00
Wesley Peck
ec57d53342 1. Adding test cases for MBlaze MC disassembler. 
2. Fixing several errors in disassembler uncovered by test cases.
3. Fixing invalid encoding of PCMPEQ and PCMPNE uncovered by test cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 02:37:59 +00:00
Evan Cheng
63f3544a7f Add conditional move of large immediate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118968 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 02:25:14 +00:00
Jim Grosbach
df7e0f8d5d Swap multiclass operand order for consistency with other patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 01:28:30 +00:00
Jim Grosbach
0f6e33b0c8 Continue ARM indexed load refactoring. Multiclass for LDR{B} pre/post indexed 
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118963 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 01:07:20 +00:00
Rafael Espindola
64185cc609 Fix the encoding of negative line deltas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 01:06:27 +00:00
Daniel Dunbar
32c7a5e08c Fix some more 80-col violas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118959 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:55:45 +00:00
Daniel Dunbar
ab19da4bc0 Fix 80-col violation / non-sensicalness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:55:42 +00:00
Jim Grosbach
9e0bfb5829 More ARM load/store indexed refactoring. Also fix an incorrect IndexMode 
flag for the LDRT/STRT family instructions as a side effect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:35:48 +00:00
Dan Gohman
0e65eb2065 Revert r118917, which is implicated in the llvm-gcc-i386-linux-selfhost failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:31:40 +00:00
Evan Cheng
e5e0ef180e Fix an obvious typo which inverted an immediate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:27:47 +00:00
Wesley Peck
24d06f2be5 1. Adding missing immediate mode asm parser test cases. 
2. Fixing improper immediate mode reverse subtract.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 00:03:46 +00:00
Eric Christopher
84e86c0156 Temporarily revert this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 23:50:48 +00:00
Evan Cheng
11c11f8ab0 For pre-v6t2 targets, only select MOVi32imm if the immediate can be handled with movi + orr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118945 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 23:46:13 +00:00
Wesley Peck
8bfdd87714 Fixing improperly encoded reverse subtract instructions in MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 23:41:10 +00:00
Owen Anderson
b9a643e2cd Revert r118939 while I work out why it broke some buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 23:36:03 +00:00
Wesley Peck
41400da31e 1. Finishing MBlaze MC asm parser test cases 
2. Parsing .word directive in MBlaze asm parser
3. Fixing hack where memory instructions reversed order of last two parameters
4. Fixing many improperly encoded instructions
5. Support parsing special instructions (MFS,MTS,etc.)
6. Removing unused functions from inst printer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 23:30:17 +00:00
Devang Patel
522ad74e4b Remove DW_AT_start_scope support. It is incomplete and superseeded by location entries support. 
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 2010-11-12 23:20:42 +00:00
Owen Anderson
7a6b810dcb Attemt to provide correct encodings for Thumb2 binary operators. 
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 2010-11-12 23:18:11 +00:00
Evan Cheng
893d7fe209 Eliminate ARM::MOVi2pieces. Just use MOVi32imm and expand it to either movi+orr or movw+movt depending on the subtarget. 
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 2010-11-12 23:03:38 +00:00
Eric Christopher
c0394c0b8c Make this happen for ARM like x86. Don't entirely bail out when 
an address is in a different block, get it into a register and go
from there.


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 2010-11-12 22:52:32 +00:00
Evan Cheng
875a6ac09a Add conditional mvn instructions. 
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 2010-11-12 22:42:47 +00:00
Jim Grosbach
e1634e9351 Zap a copy/paste-o bit of dead code. 
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 2010-11-12 21:29:10 +00:00
Jim Grosbach
2716e25c2c Refactor to parameterize some ARM load/store encoding patterns. Preparatory 
to splitting the load/store pre/post indexed instructions into [r, r] and
[r, imm] forms.



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 2010-11-12 21:28:15 +00:00
Owen Anderson
5de6d841a5 First stab at providing correct Thumb2 encodings, start with adc. 
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 2010-11-12 21:12:40 +00:00
Duncan Sands
88c3df7afb Have GVN simplify instructions as it goes. For example, consider 
"%z = %x and %y".  If GVN can prove that %y equals %x, then it turns
this into "%z = %x and %x".  With the new code, %z will be replaced
with %x everywhere (and then deleted).  Previously %z would be value
numbered too, which is a waste of time.  Also, while a clever value
numbering algorithm would give %z the same value number as %x, our
current one doesn't do so (at least I don't think it does).  The new
logic has an essentially equivalent effect to what you would get if
%z was given the same value number as %x, i.e. it should make value
numbering smarter.  While there, get hold of target data once at the
start rather than a gazillion times all over the place.


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 2010-11-12 21:10:24 +00:00
Evan Cheng
529916ca4a Add some missing isel predicates on def : pat patterns to avoid generating VFP vmla / vmls (they cause stalls). Disabling them in isel is properly not a right solution, I'll look into a proper solution next. 
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 2010-11-12 20:32:20 +00:00
Jim Grosbach
b39e6488ee Kill more unused stuff. 
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 2010-11-12 19:27:45 +00:00
Benjamin Kramer
1261a2ff99 MCELF: Copy the symbol name only if we're going to modify it. 
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 2010-11-12 19:26:04 +00:00
Jim Grosbach
a0a6a47c02 Remove unused class. 
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 2010-11-12 19:24:53 +00:00
Dan Gohman
52668c9a30 When the definition of an address value is in a different block 
from the user of the address, fall back to just using the
address in a register instead of bailing out of fast-isel
altogether.


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 2010-11-12 19:14:00 +00:00
Chris Lattner
269f10b316 accept lret as an alias for lretl, fixing the reopened part of PR8592 
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 2010-11-12 18:54:56 +00:00
Rafael Espindola
bac0ad9eda Remove what looks like dead code in the production of debug lines. 
We only produce debug line information if we have seen a line directive, so
this code is dead. Also, if we want to be bug by bug compatible with
gas and sometimes produce "empty" .debug_line sections, this will
match the content produced by gas.

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 2010-11-12 18:41:26 +00:00
Andrew Trick
f06202f8e8 typo (4th checkin for one fix) 
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 2010-11-12 18:36:03 +00:00
Jim Grosbach
d75c3f136b Fill in the default predication bits for ARM unconditional branch. 
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 2010-11-12 18:13:26 +00:00
Jim Grosbach
80f9e6724f Encoding for ARM LDRSB instructions. 
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 2010-11-12 17:52:59 +00:00
Andrew Trick
de91f3c5eb Fixes PR8287: SD scheduling time. The fix is a failsafe that prevents 
catastrophic compilation time in the event of unreasonable LLVM
IR. Code quality is a separate issue--someone upstream needs to do a
better job of reducing to llvm.memcpy. If the situation can be reproduced with
any supported frontend, then it will be a separate bug.


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 2010-11-12 17:50:46 +00:00
Chris Lattner
6b5e3978e3 implement PR8592: empirically "lretq" is a "lret" with a rex.w prefix. 
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 2010-11-12 17:41:20 +00:00
Chris Lattner
a29aae7aca tidy up. 
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 2010-11-12 17:24:29 +00:00
Rafael Espindola
d4a352609f gnu as support both % and @ before types, do the same. 
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 2010-11-12 15:47:08 +00:00
Dan Gohman
c9d8a75e44 Re-disable TBAA for now; it broke MultiSource/Applications/JM/lencod, 
at least.


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 2010-11-12 11:21:08 +00:00
Kalle Raiskila
7ea1ab5f41 Fix memory access lowering on SPU, adding 
support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.


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 2010-11-12 10:14:03 +00:00
Eric Christopher
d0c82a683e Fix up a few more spots of addrmode2 (or not) changes that were 
missed. Update some comments accordingly.

Fixes rdar://8652289


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 2010-11-12 09:48:30 +00:00
Dan Gohman
b238536ada Enable TBAA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 06:20:01 +00:00
Lang Hames
5e77f4b1d2 Fix some style issues in PBQP. Patch by David Blaikie. 
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 2010-11-12 05:47:21 +00:00
Dan Gohman
720a2ed6d9 Enhance DSE to handle the case where a free call makes more than 
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.


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 2010-11-12 02:19:17 +00:00
Dale Johannesen
0e03456a65 Remove possibly useful info from comment, per Chris. 
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 2010-11-12 00:43:18 +00:00
Bruno Cardoso Lopes
7d5652dcd5 Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118864 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 00:38:32 +00:00
Jim Grosbach
e50e6bcd90 Start of support for binary emit of 16-it Thumb instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 23:41:09 +00:00
Owen Anderson
8f14391314 Fill out support for Thumb2 encodings of NEON instructions. 
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 2010-11-11 23:12:55 +00:00
Wesley Peck
48bcda4dd6 The BRK instruction in the MicroBlaze is a branch-and-link. 
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 2010-11-11 22:21:08 +00:00
Nick Lewycky
67b6464377 Doxygenify 
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 2010-11-11 21:51:44 +00:00
Dan Gohman
6d8eb156e6 Add helper functions for computing the Location of load, store, 
and vaarg instructions.


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 2010-11-11 21:50:19 +00:00
Wesley Peck
ef5b390263 Fix tblgen instruction errors exposed by MC asm parser tests 
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend


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 2010-11-11 21:40:53 +00:00
Owen Anderson
57dac88f77 Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:36:43 +00:00
Dan Gohman
888cbda188 Don't forget the TBAA info, if available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118842 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:27:26 +00:00
Dan Gohman
4d70a29490 Factor out Instruction::isSafeToSpeculativelyExecute's code for 
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer.  Teach it how to reason about GEPs
with simple non-zero indices.

Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.


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 2010-11-11 21:23:25 +00:00
Eric Christopher
79ab2fe01a Revert the accidental commit I made reverting the previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118835 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:50:14 +00:00
Jim Grosbach
3c3849297b Trailing whitespace. 
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 2010-11-11 20:16:23 +00:00
Jim Grosbach
d1d5a39cad ARM fixup encoding for direct call instructions (BL). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:05:40 +00:00
Eric Christopher
6c50119ba3 Revert this temporarily. 
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 2010-11-11 19:47:02 +00:00
Eric Christopher
391f228e7e Change the prologue and epilogue to use push/pop for the low ARM registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:26:03 +00:00
Dan Gohman
f3b8c76599 Avoid calling alias on non-pointer values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:23:51 +00:00
Owen Anderson
c7139a6f0d Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure. 
More tests to come.


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 2010-11-11 19:07:48 +00:00
Rafael Espindola
e1a2587ee2 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

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 2010-11-11 19:04:55 +00:00
Wesley Peck
60f923c5e2 Fixed some bugs in MBlaze asm parser that were introduced when removing OwningPtrs from the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:41:33 +00:00
Chris Lattner
af510f16ec add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:23:57 +00:00
Rafael Espindola
2ff9e83a82 Initial comdat implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:13:52 +00:00
Dan Gohman
56653f0df8 TBAA-enable ArgumentPromotion. 
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 2010-11-11 18:09:32 +00:00
Dan Gohman
fca0b106f7 Add a FIXME comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118803 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:08:43 +00:00
Jim Grosbach
c466b937db Encoding of destination fixup for ARM branch and conditional branch 
instructions.

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 2010-11-11 18:04:49 +00:00
Andrew Trick
8a83d54528 Check TRI->getReservedRegs because other allocators do it. Even though 
it makes no sense for allocation_order iterators to visit reserved regs.
The inline spiller depends on AliasAnalysis.
Manage the Query state to avoid uninitialized or stale results.


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 2010-11-11 17:46:29 +00:00
Rafael Espindola
9302bd664d Make AliasedSymbol able to handle MCTargetExpr. They can get here if 
a weakref is used with a VariantKind.

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 2010-11-11 17:24:43 +00:00
Chris Lattner
1e68fdb946 add pr# 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:17:56 +00:00
Jim Grosbach
7eab97f260 Encoding for ARM LDRSH_POST. 
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 2010-11-11 16:55:29 +00:00
Rafael Espindola
03f1b74aed Fix the symbol index of weak references. Also make RecordRelocation a bit 
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:48:11 +00:00
Dan Gohman
67a84f1ee6 Include ImmutablePass passes in -debug-pass=Arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:32:17 +00:00
Dan Gohman
efb8a9d0c2 Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this. 
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 2010-11-11 16:24:49 +00:00
Dan Gohman
5aae3dcb53 Make Sink tbaa-aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:21:47 +00:00
Dan Gohman
2c71f18ff7 It's safe to sink some instructions which are not safe to speculatively 
execute. Make Sink's predicate more precise.


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 2010-11-11 16:20:28 +00:00
Rafael Espindola
3f2d13c98e Remove some explicit arguments to getELFSection. This is 
a leftover from the removal of isExplicit.

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 2010-11-11 03:40:25 +00:00
Jim Grosbach
928f3325a7 Encoding for ARM LDRSH and LDRSH_PRE. Cannonicalize operand names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:55:59 +00:00
Jim Grosbach
d507d1f616 Fix encoding of Ra register for ARM smla* instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:27:41 +00:00
Jim Grosbach
570a922691 ARM STRH encoding information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:09:40 +00:00
Jakob Stoklund Olesen
a05f60b241 Delete SplittingSpiller. It was not being used by anyone, and it is being 
superceded by SplitKit.

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 2010-11-11 00:52:44 +00:00
Dan Gohman
8a66a202f6 It's not necessary to clear out the Size and TBAATag at each of 
these points.


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 2010-11-11 00:42:22 +00:00
Dan Gohman
ec9b4ac914 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.


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 2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
1e8e72d72a Insert two blank SlotIndexes between basic blocks instead of just one. 
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.

We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.

That requires two separate indexes between blocks. One for live-outs and one for
live-ins.

With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.

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 2010-11-11 00:19:20 +00:00
Jakob Stoklund Olesen
b5f327b30f No need to add liveness that's already there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:56:00 +00:00
Jakob Stoklund Olesen
e93198af07 Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing 
constant loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:55:56 +00:00
Jim Grosbach
954ffff79b Move LDM predicate operand encoding into base clase. Add STM missing STM 
encoding bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:44:32 +00:00
Jim Grosbach
5d5eb9e381 ARM LDM encoding for the mode (ia, ib, da, db) operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:38:36 +00:00
Rafael Espindola
c87a94a942 Factor some code into WriteSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:36:59 +00:00
Jim Grosbach
c1235e2a4e Fix ARM encoding of non-return LDM instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:18:49 +00:00
Jim Grosbach
866aa394ca Fix ARM encoding of LDM+Return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:12:48 +00:00
Dan Gohman
2365f08c7d When clearing a non-local pointer dependency cache entry, clear 
the reverse map too. This fixes seflhost build errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:35:02 +00:00
Rafael Espindola
1d739a010d Update the section index map after we add the medatada sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:34:07 +00:00
Devang Patel
62367045a4 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:19:21 +00:00
Rafael Espindola
4beee3d06b Use SectionIndexMap in WriteSymbolTable to make it a little less brittle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:16:43 +00:00
Dan Gohman
533c2ad360 Factor out the code for computing an AliasAnalysis::Location 
for a given instruction into a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:35 +00:00
Rafael Espindola
bab2a80525 Factor some code into ComputeIndexMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:05 +00:00
Dan Gohman
733c54da1e Fully invalidate cached results when a prior query's size or 
type is insufficient for, or incompatible with, the current query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:45:11 +00:00
Nate Begeman
bf5be2654e Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build vector with 2 elts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:35:41 +00:00
Duncan Sands
bc68d71d2a Reduce the maximum recursion depth, 5 seems pointlessly too much. 
Probably it should just be 1, but compromise with 3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:53:24 +00:00
Dan Gohman
075fb5d68f Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:37:15 +00:00
Rafael Espindola
af3d38f70e Change the String<size> methods to take a fragment instead of a buffer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:02:59 +00:00
Jakob Stoklund Olesen
cfa7134a9c Basic rematerialization during splitting. 
Whenever splitting wants to insert a copy, it checks if the value can be
rematerialized cheaply instead.

Missing features:
- Delete instructions when all uses have been rematerialized.
- Truncate live ranges to the remaining uses after rematerialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:31:50 +00:00
Andrew Trick
f4baeaf848 RABasic is nearly functionally complete. There are a few remaining 
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:18:47 +00:00
Rafael Espindola
4283f4b81e Use MCSectionELF in places we know we have an ELF section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:05:07 +00:00
Dan Gohman
3355c4e598 Use getValueOperand() and getPointerOperand() on load and store 
instructions instead of hard-coding operand numbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:03:33 +00:00
Duncan Sands
a74a58c83b Teach InstructionSimplify how to look through PHI nodes. Since PHI 
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit.  It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:23:01 +00:00
Dan Gohman
68a6056daf Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:17:28 +00:00
Jim Grosbach
7c7ddb21c3 Simplify and clean up MC symbol lookup for ARM constant pool values. This fixes 
double quoting of ObjC symbol names in constant pool entries.

rdar://8652107

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:59:10 +00:00
Dan Gohman
432d08cbdb Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:34:04 +00:00
Michael J. Spencer
6c43de46ff Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118683 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:06:00 +00:00
Michael J. Spencer
339b9121bd System/Win32/Path: Implement isSymLink. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:05:39 +00:00
Duncan Sands
b2cbdc35ba Simplify binary operations where one operand is a select instruction. 
The simplifications performed here never create new instructions, they
only return existing instructions (or a constant), and so are always a
win.  In theory they should transform (for example)
  %z = and i32 %x, %y
  %s = select i1 %cond, i32 %y, i32 %z
  %r = and i32 %x, %s
into
  %r = and i32 %x, y
but in practice they get into a fight with instcombine, and lose.
Unfortunately instcombine does a poor job in this case.  Nonetheless
I'm committing this transform to make it easier to discuss what to
do to make peace with instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 13:00:08 +00:00
NAKAMURA Takumi
46cf7c5fd6 Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API. 
The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118678 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 08:37:47 +00:00
Jim Grosbach
2c4d5125c7 Update ARMConstantPoolValue to not use a modifier string. Use an explicit 
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 03:26:07 +00:00
Bruno Cardoso Lopes
c4bb67c8d9 Add clo instruction. Patch by Akira Hatanaka (ahatanaka@mips.com) with some minor tweaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 02:13:22 +00:00
Dale Johannesen
201ab3acff When checking that the necessary bits are zero in 
order to reduce ((x<<30)>>24) to x<<6, check the
correct bits.  PR 8547.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:30:56 +00:00
Bill Wendling
8ea974039a Emit a '!' if this is a "writeback" register or memory address. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:07:54 +00:00
Jakob Stoklund Olesen
b80e973c95 Simplify the LiveRangeEdit::canRematerializeAt() interface a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:05:12 +00:00
Dan Gohman
42c31a7073 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:02:18 +00:00
Matt Beaumont-Gay
cc8d10e1a8 Rename a parameter to avoid confusion with a local variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 00:08:58 +00:00
Bill Wendling
8e8b18bcfa Emit the warning about the register list not being in ascending order only once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:45:59 +00:00
Rafael Espindola
34be396a12 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:42:07 +00:00
Bill Wendling
5fa22a1975 s/std::vector/SmallVector/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:28:44 +00:00
Rafael Espindola
037b5be15a Revert previous patch. Missed a case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:54:38 +00:00
Bill Wendling
c3236753d6 Delete the allocated vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118644 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:51:42 +00:00
Bob Wilson
66f6c79450 Define the subtarget feature for the architecture version, 
as derived from the target triple.  This is important for enabling
features that are implied based on the architecture version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:50:47 +00:00
Bob Wilson
54f9256380 Do not use MEMBARRIER_MCR for any Thumb code. 
It is only supported for ARM code.  Normally Thumb2 code would use DMB instead,
but depending on how the compiler is invoked (e.g., -mattr=-db) that might be
disabled.  This prevents a "cannot select MEMBARRIER_MCR" error in that
situation.  Radar 8644195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:50:44 +00:00
Bill Wendling
7729e06c12 Two types of instructions have register lists: 
* LDM, et al, uses a bit mask to indicate the register list.
* VLDM, et al, uses a base register plus number.

The LDM instructions may be non-contiguous, but the VLDM ones must be
contiguous. Those are semantic checks that should be done later in the
compiler. Also postpone the creation of the bit mask until it's needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118640 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:44:22 +00:00
Rafael Espindola
e61a1ac595 Remove IsExplicit. It was always false. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:37:44 +00:00
Jim Grosbach
3a2429a86c Change the ARMConstantPoolValue modifier string to an enumeration. This will 
help in MC'izing the references that use them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118633 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 21:36:17 +00:00
Andrew Trick
071d1c063f Adds RABasic verification and tracing. 
(retry now that the windows build is green)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 21:04:34 +00:00
Dan Gohman
4cf0dcfb44 Teach FunctionAttrs about the VAArg instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:17:38 +00:00
Dan Gohman
6d44d64f61 Use the AliasAnalysis interface to determine how a Function accesses 
memory. This isn't a real improvement with present day AliasAnalysis
implementations; it's mainly for consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:13:27 +00:00
Dan Gohman
1cdaa3e5b1 VAArg doesn't capture its operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:09:35 +00:00
Dan Gohman
c07661c1fa Teach AliasAnalysis about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:06:55 +00:00
Dan Gohman
cd93f3bbb9 Teach LICM and AliasSetTracker about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118618 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:58:21 +00:00
Dan Gohman
40b6a19daa Teach FunctionAttrs about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118617 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:56:27 +00:00
Matt Beaumont-Gay
e33daaaaf9 Add a trivial virtual dtor to AbstractRegisterDescription to appease 
-Wnon-virtual-dtor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:56:25 +00:00
Andrew Trick
32d9aeb1df Reverting r118604. Windows build broke. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:47:51 +00:00