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Author SHA1 Message Date
Dan Gohman
52fddd3e36 Fix the the ceiling-division used in computing the MaxBECount so that it doesn't 
have trouble with an intermediate add overflowing. Also, be more conservative
about the case where the induction variable in an SLT loop exit can step past
the RHS of the SLT and overflow in a single step.

Make getSignedRange more aggressive, to recover for some common cases which
the above fixes pessimized.

This addresses rdar://7561161.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:40:18 +00:00
Chris Lattner
1e459c4467 don't bother setting the AsmPrinter::MF ivar, now that 
AsmPrinter::SetupMachineFunction sets it.  Note that systemz
and msp430 didn't.  Yay for reduced inconsistency! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:38:11 +00:00
Chris Lattner
b84822fb7b make MachineFunction keep track of its ID and make 
MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:35:26 +00:00
Chris Lattner
b8da4ac698 this hook should be const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:19:00 +00:00
Dan Gohman
153f1ebeb8 Add a comment about a missed opportunity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:13:15 +00:00
Dan Gohman
df6d5e0394 Print empty and full sets specially. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:12:55 +00:00
Chris Lattner
85fe07866a Add support for target-specific 32-bit custom-lowered 
jump table entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:05:28 +00:00
Daniel Dunbar
c690aab230 Unbreak MSVC/CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94502 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 03:56:22 +00:00
Chris Lattner
13af11acbf make jit jump table emission be based on the EntryKind instead of magic variables. 
JITInfo::getPICJumpTableEntry can probably be removed now, but I don't plan to do 
this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94501 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 03:47:15 +00:00
Chris Lattner
ff537cec2e switch jump table entry emission to be based on EntryKind 
instead of magic variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 03:43:22 +00:00
Victor Hernandez
b9768b0731 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:42:15 +00:00
Victor Hernandez
e685f230b6 Add MDNode::getIfExists(), an efficient way to determine if a value is used by metadata (since metadata does not appear in a value's use list) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:36:35 +00:00
Victor Hernandez
4cf292a86d Assert when debug intrinsic insert functions are passed empty arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94491 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:07:38 +00:00
Evan Cheng
8c7ecaf524 Implement cond ? -1 : 0 with sbb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:00:44 +00:00
Dale Johannesen
11609fa2e3 Accept immediate as value of a dbg_value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94489 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 01:54:26 +00:00
Jeffrey Yasskin
f5fe3beb3a Re-enable unit tests disabled in r94164 by telling GTest about the 
lack of RTTI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 01:26:46 +00:00
Sean Callanan
7dcef4c475 Added the implementation of the Intel-specific 
TargetAsmLexer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94482 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 01:00:10 +00:00
Dale Johannesen
5ed17ae92a Generate DEBUG_VALUE comments on x86. The (limited) 
dbg.declare's we currently generate go through both
register allocators without perturbing the results.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:09:58 +00:00
Sean Callanan
cf2e3d108d Added the TargetAsmLexer implementation for AT&T syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94479 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:08:25 +00:00
Dale Johannesen
6ec25f570f use findDebugLoc in more places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:03:12 +00:00
Jim Grosbach
1f9b48ad87 Minor jump table cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94475 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:50:13 +00:00
Chris Lattner
5e1df8d1f7 in 32-bit pic mode for targets with a GOT, x86 emits jump table 
entries with @GOTOFF whih is EK_GPRel32BlockAddress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:38:14 +00:00
Chris Lattner
281e7767df fix quoting problem jim noticed! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:28:03 +00:00
Chris Lattner
071c62fad0 Rearrange handling of jump tables. Highlights: 
1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:26:13 +00:00
Chris Lattner
b1e803985d prep work to support a future where getJumpTableInfo will return 
a null pointer for functions with no jump tables.  No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:22:00 +00:00
Chris Lattner
da63b3ad63 add a method to get the alignment of an integer type even 
when we don't have one laying around.  Useful if you don't
have an llvmcontext handy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:18:11 +00:00
Johnny Chen
aeb326aad7 Make it SP, LR, PC for GPR Register Class instead of LR, SP, PC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:54:29 +00:00
Chris Lattner
44e87255e9 eliminate redundant argument to EmitJumpTableInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94464 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:41:33 +00:00
Johnny Chen
541ba7dd92 Implemented ARMInstPrinter::printThumbS4ImmOperand(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:13:10 +00:00
Sean Callanan
436c48485c Implemented the dialect decision logic for the X86 
TargetAsmLexer.  Dialect-specific lexing code will
be placed in the functions LexTokenATT() and
LexTokenIntel().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:59:20 +00:00
Johnny Chen
e43b6c9695 Fixed the order of GPR RegisterClass regs to be: ..., R10, R11, R12, ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:56:35 +00:00
Dan Gohman
26793ed974 Fix the bitcode reader to deserialize nuw/nsw/etc. bits properly in the case 
of a forward-reference, which doesn't use an "abbrev" encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:55:39 +00:00
Chris Lattner
718fb59801 mcstreamerize gprel32 emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:28:50 +00:00
Bob Wilson
0988639963 Remove check for an impossible condition: the condition of the while loop has 
already checked that TmpBB->getSinglePredecessor() is non-null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:28:05 +00:00
Chris Lattner
1aca249252 mcize the non-gprel cases of AsmPrinter::printPICJumpTableEntry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:22:22 +00:00
Chris Lattner
798d125659 handle the _set_ symbol with an MCSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:17:10 +00:00
Chris Lattner
78f485afb7 rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to 
make it clear what it is, instead of how it is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:10:10 +00:00
Chris Lattner
a86106ed88 pull the non-pic jump table case out of printPICJumpTableEntry 
and MCize the non-pic case.  Now printPICJumpTableEntry really
is just about printing PIC entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:01:58 +00:00
Chris Lattner
cba386ccac remove JumpTableDirective, it is always null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 20:52:54 +00:00
Chris Lattner
18821e07a3 no need to implement these. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 20:37:36 +00:00
Chris Lattner
0890cf124f mcize jump table symbol manipulation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:51:38 +00:00
Chris Lattner
bfcb09688c sink an arm specific method out of asmprinter into the ARMAsmPrinter and 
rename it to avoid shadowing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:39:52 +00:00
Chris Lattner
3a39f8cec8 remove dead code: the x86 target never sets usesGlobalOffsetTable, 
even on x86-32/elf which uses a GOT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:23:04 +00:00
Chris Lattner
d32e803073 wirte up .file and .file to the mc asmparser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:02:58 +00:00
Chris Lattner
a6594fc715 mcstreamerize .file and .file. This also fixes an issue where the 
normal form of .file would fail if the filename had a weird character
in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:58:59 +00:00
Chris Lattner
a800f7c464 emit ELF .type directives through MCStreamer instead of doing it textually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:33:40 +00:00
Chris Lattner
ed0ab15170 add symbol attribute support for the ELF .type directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:30:45 +00:00
Bob Wilson
032742972f Change Value::getUnderlyingObject to have the MaxLookup value specified as a 
parameter with a default value, instead of just hardcoding it in the
implementation.  The limit of MaxLookup = 6 was introduced in r69151 to fix
a performance problem with O(n^2) behavior in instcombine, but the scalarrepl
pass is relying on getUnderlyingObject to go all the way back to an AllocaInst.
Making the limit part of the method signature makes it clear that by default
the result is limited and should help avoid similar problems in the future.
This fixes pr6126.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:26:54 +00:00
Victor Hernandez
aee6a656e8 Revert r94260 until findDbgDeclare() is made more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 17:52:13 +00:00
Rafael Espindola
0173b74c55 Update test for darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 15:32:10 +00:00