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Author SHA1 Message Date
Duncan Sands 4dd125e278 I plan to release a version of dragonegg based on llvm-2.7 shortly 
after the llvm-2.7 release.

llvm-svn: 101934
 2010-04-20 19:40:58 +00:00
Jakob Stoklund Olesen 011207a0ae When MachineLICM is hoisting a physical register after regalloc, make sure the 
register is not killed in the loop.

This fixes 188.ammp on ARM where the post-ra scheduler would grab a register
that looked available but wasn't.

A testcase would be huge and fragile, sorry.

llvm-svn: 101930
 2010-04-20 18:45:47 +00:00
Johnny Chen d7209d2d56 When doing Thumb disassembly, there's no need to consider t2ADDrSPi12/t2SUBrSPi12, 
as their generic counterparts t2ADDri12/t2SUBri12 should suffice.

llvm-svn: 101929
 2010-04-20 18:45:24 +00:00
Bill Wendling a8ae1783b4 Move CodeGen/X86/2010-04-19-DAGCombineCrash.ll into CodeGen/X86/crash.ll. Also 
reduce.

llvm-svn: 101925
 2010-04-20 18:14:47 +00:00
Johnny Chen 7be315c414 For t2LDRT, t2LDRBT, t2LDRHT, t2LDRSBT, and t2LDRSHT, if Rn(Inst{19-16})=='1111', 
transform the Opcode to the corresponding t2LDR*pci counterpart.

Ref: A8.6.86 LDRT, A8.6.65 LDRBT, A8.6.77 LDRHT, A8.6.81 LDRSBT, A8.6.85 LDRSHT
llvm-svn: 101915
 2010-04-20 17:28:50 +00:00
Evan Cheng 4019d571d9 Typo. 
llvm-svn: 101914
 2010-04-20 17:27:38 +00:00
Devang Patel db6f71b02f Add RUN: 
llvm-svn: 101913
 2010-04-20 17:20:10 +00:00
Dan Gohman 950fe784be Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel 
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.

llvm-svn: 101906
 2010-04-20 15:03:56 +00:00
Dan Gohman f41ad478ca Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since 
they end up doing nothing.

llvm-svn: 101904
 2010-04-20 15:00:41 +00:00
Dan Gohman 7a6b0dfbe7 Document that TargetRegisterInfo::contains does not cover virtual registers. 
llvm-svn: 101903
 2010-04-20 14:51:20 +00:00
Dan Gohman 7c845e4ea4 Sink this use_empty() check into isUsedOutsideOfDefiningBlock. 
llvm-svn: 101902
 2010-04-20 14:50:13 +00:00
Dan Gohman 7b7f0883fe If a PHI node somehow has debug info, propogate it to the MachineInstr PHI. 
llvm-svn: 101901
 2010-04-20 14:48:02 +00:00
Dan Gohman 0f055d3f56 Don't iterate through the whole block just to find the PHI nodes. 
llvm-svn: 101900
 2010-04-20 14:46:25 +00:00
Gabor Greif 27b3d55194 use abstract accessors to CallInst 
llvm-svn: 101899
 2010-04-20 13:13:04 +00:00
Benjamin Kramer 395857705f PR6880: Don't dereference CallsExternalNode if it's NULL. 
llvm-svn: 101897
 2010-04-20 12:16:50 +00:00
Benjamin Kramer 80178eea6a Fix -Wcast-qual warning. 
llvm-svn: 101894
 2010-04-20 11:50:37 +00:00
Chris Lattner 5debc33168 stop computing InstImpInputs, it is dead 
llvm-svn: 101881
 2010-04-20 06:30:25 +00:00
Chris Lattner 9dc68d31fd DAGInstruction::ImpOperands is dead after my recent tblgen work, zap it. 
llvm-svn: 101880
 2010-04-20 06:28:43 +00:00
Chris Lattner 5100367ff3 Bill's change in r95336 broke empty aggregates embedded 
in other types.  fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.

This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.

llvm-svn: 101879
 2010-04-20 06:20:21 +00:00
Chris Lattner 38c1a1a247 teach cellspu how to return i8 and i16 from calls, 
patch by Kalle Raiskila!

llvm-svn: 101875
 2010-04-20 05:36:09 +00:00
Chris Lattner 66e809acc0 remove a bunch of ad-hoc code to simplify instructions from 
loop unswitch, and use inst simplify instead.  It is more
powerful and less duplication.

llvm-svn: 101874
 2010-04-20 05:33:18 +00:00
Chris Lattner c707fa9651 move some select simplifications out out instcombine into 
inst simplify.  No functionality change.

llvm-svn: 101873
 2010-04-20 05:32:14 +00:00
Chris Lattner 5814d9d9da RewriteLoopBodyWithConditionConstant can end up rewriting the 
condition we're unswitching on.  In this case, don't try to
simplify the second copy of the loop which may be dead or not,
but is probably a constant now.  This fixes PR6879

llvm-svn: 101870
 2010-04-20 05:09:16 +00:00
Chris Lattner c239eb79bd reapply 'reject forward references to functions whose type don't match' 
now that the testsuite has been updated.

llvm-svn: 101866
 2010-04-20 04:49:11 +00:00
Dan Gohman 0c862a86fa Delete a redundant return statement. 
llvm-svn: 101860
 2010-04-20 01:58:20 +00:00
Bill Wendling 467e6c2deb The visitXOR method can return the same SDNode. If so, we don't want to delete 
it as it's not dead.

llvm-svn: 101855
 2010-04-20 01:25:01 +00:00
Chris Lattner 4025306a91 disable optimizations in this directory for MSVC9. This avoids 
an optimizer infinite loop on the file, PR6866.

llvm-svn: 101854
 2010-04-20 01:11:32 +00:00
Johnny Chen 2161e9f03b Better error-handling for DisassembleThumb2DPModImm() with 2-reg operands where 
d==15 is considered illegal.  Return false instead of assert().

llvm-svn: 101852
 2010-04-20 01:01:57 +00:00
Eric Christopher 64831c6a4c Remove the palignr intrinsics now that we lower them to vector shuffles, 
shifts and null vectors. Autoupgrade these to what we'd lower them to.

Add a testcase to exercise this.

llvm-svn: 101851
 2010-04-20 00:59:54 +00:00
Dan Gohman eadc04badc Remove this debug output; it isn't that useful, and it's incomplete 
in the case where a basic block is split.

llvm-svn: 101850
 2010-04-20 00:56:44 +00:00
Dan Gohman e450d7444d Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.

llvm-svn: 101848
 2010-04-20 00:48:35 +00:00
Chris Lattner aedb8a3535 make CallGraphNode dtor abort if a node is deleted when there are still 
references to it.

llvm-svn: 101847
 2010-04-20 00:47:34 +00:00
Chris Lattner a5cdd5e6a2 make the inliner do less work for leaf functions. 
llvm-svn: 101846
 2010-04-20 00:47:08 +00:00
Chris Lattner e93846762a Fix rdar://7879828 - crash in CallGraph, a self host issue. 
Arg promotion was deleting call graph nodes that still had references
from the 'indirect' CGN.  Like the inliner, it should only delete the
function if all references are gone.

llvm-svn: 101845
 2010-04-20 00:46:50 +00:00
Dan Gohman 3df671a81c Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844
 2010-04-20 00:37:27 +00:00
Dan Gohman ca35aa1122 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.

llvm-svn: 101843
 2010-04-20 00:29:35 +00:00
Bob Wilson 92a4685dd2 Fix tests for Neon load/store intrinsics to match the i8* types expected by 
the intrinsics.  The reason for those i8* types is that the intrinsics are
overloaded on the vector type and we don't have a way to declare an intrinsic
where one argument is an overloaded vector type and another argument is a
pointer to the vector element type.  The bitcasts added here will match what
the frontend will typically generate when these intrinsics are used.

llvm-svn: 101840
 2010-04-20 00:17:16 +00:00
Johnny Chen f3dd8b9487 More IT instruction error-handling improvements from fuzzing. 
llvm-svn: 101839
 2010-04-20 00:15:41 +00:00
Dan Gohman be2e727a38 Revert 101825, which is causing trouble. 
llvm-svn: 101832
 2010-04-19 23:34:15 +00:00
Dan Gohman 35bc4d46cb Make BreakAntiDependencies' SUnits argument const, and make the Begin 
and End arguments by-value rather than by-reference.

llvm-svn: 101830
 2010-04-19 23:11:58 +00:00
Johnny Chen e62b680965 Better error handling of invalid IT mask '0000', instead of just asserting. 
llvm-svn: 101827
 2010-04-19 23:02:58 +00:00
Dan Gohman 8cccc542f6 Eliminate SelectionDAGISel's "current block" member. Just pass it as 
an argument to things that need it.

llvm-svn: 101825
 2010-04-19 22:51:14 +00:00
Dan Gohman 5ccd0b3686 Delete an unnecessary reference to SelectionDAGISel::BB. 
llvm-svn: 101824
 2010-04-19 22:48:45 +00:00
Dan Gohman 7c0303a059 Eliminate the CurMBB member from SelectionDAGBuilder. For places that 
need it, just pass around the parent block of the current instruction
explicitly.

llvm-svn: 101822
 2010-04-19 22:41:47 +00:00
Dan Gohman e637ff5e9a Remove the Expr member from IVUsers. Instead of remembering the expression, 
just ask ScalarEvolution for it on demand. This helps IVUsers be more robust
in the case of expressions changing underneath it. This fixes PR6862.

llvm-svn: 101819
 2010-04-19 21:48:58 +00:00
Johnny Chen 777346e749 According to A8.6.16 B (Encoding T3) and A8.3 Conditional execution -- A8.3.1 
Pseudocode details of conditional, Condition bits '111x' indicate the
instruction is always executed.  That is, '1111' is a leagl condition field
value, which is now mapped to ARMCC::AL.

Also add a test case for condition field '1111'.

llvm-svn: 101817
 2010-04-19 21:19:52 +00:00
Devang Patel 561fa8490e Fix typo. add a test case. 
llvm-svn: 101812
 2010-04-19 20:31:39 +00:00
Evan Cheng e19aa5cc52 More progress on promoting i16 operations to i32 for x86. Work in progress. 
llvm-svn: 101808
 2010-04-19 19:29:22 +00:00
Dan Gohman 1e95790fd4 Give SelectionDAG a TargetMachine too, rather than having it 
fetch one from the MachineFunction.

llvm-svn: 101807
 2010-04-19 19:22:07 +00:00
Evan Cheng e7c21a4242 More 80 col violation. 
llvm-svn: 101806
 2010-04-19 19:17:44 +00:00