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Author SHA1 Message Date
Duncan Sands
8c2c90c3f9 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
1ba4c9d2c2 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
9998480f92 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
a87efb5d0f 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
bd5bf58029 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
ebe1fbf676 Typo. 
llvm-svn: 101914
 2010-04-20 17:27:38 +00:00
Devang Patel
def402649b Add RUN: 
llvm-svn: 101913
 2010-04-20 17:20:10 +00:00
Dan Gohman
44ab9ed9b8 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
3915c2cc7c 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
f0490a0b8e Document that TargetRegisterInfo::contains does not cover virtual registers. 
llvm-svn: 101903
 2010-04-20 14:51:20 +00:00
Dan Gohman
0c1f92afe1 Sink this use_empty() check into isUsedOutsideOfDefiningBlock. 
llvm-svn: 101902
 2010-04-20 14:50:13 +00:00
Dan Gohman
c276def9e9 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
47859e6848 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
2eaf8afcff use abstract accessors to CallInst 
llvm-svn: 101899
 2010-04-20 13:13:04 +00:00
Benjamin Kramer
b61f85894f PR6880: Don't dereference CallsExternalNode if it's NULL. 
llvm-svn: 101897
 2010-04-20 12:16:50 +00:00
Benjamin Kramer
9127eadfce Fix -Wcast-qual warning. 
llvm-svn: 101894
 2010-04-20 11:50:37 +00:00
Chris Lattner
6a517dbbd6 stop computing InstImpInputs, it is dead 
llvm-svn: 101881
 2010-04-20 06:30:25 +00:00
Chris Lattner
8b5bae8c3c DAGInstruction::ImpOperands is dead after my recent tblgen work, zap it. 
llvm-svn: 101880
 2010-04-20 06:28:43 +00:00
Chris Lattner
b66b0c36cd 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
04fb51984f 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
5041463692 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
b6b95141ec 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
e5a995a834 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
7a2ce4afd8 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
5f8489396e Delete a redundant return statement. 
llvm-svn: 101860
 2010-04-20 01:58:20 +00:00
Bill Wendling
887dac2aa6 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
339a3cd59b 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
4f388a02d6 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
53e7e0fcfb 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
5d47f180a2 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
e8387b1250 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
2f4001f3a8 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
92df9f46f0 make the inliner do less work for leaf functions. 
llvm-svn: 101846
 2010-04-20 00:47:08 +00:00
Chris Lattner
994155dc91 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
c64745ba43 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
1d05054dc1 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
2e6cd50a50 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
1b36569ba8 More IT instruction error-handling improvements from fuzzing. 
llvm-svn: 101839
 2010-04-20 00:15:41 +00:00
Dan Gohman
744e2b34b0 Revert 101825, which is causing trouble. 
llvm-svn: 101832
 2010-04-19 23:34:15 +00:00
Dan Gohman
60e18d1d07 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
2d0dca9099 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
94383f9d34 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
45789ce594 Delete an unnecessary reference to SelectionDAGISel::BB. 
llvm-svn: 101824
 2010-04-19 22:48:45 +00:00
Dan Gohman
b02e2f6c92 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
e52396cb52 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
fe24cdbba8 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
2a21d92744 Fix typo. add a test case. 
llvm-svn: 101812
 2010-04-19 20:31:39 +00:00
Evan Cheng
8efe9e0351 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
6bcd9dabb7 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
d65a23c1e6 More 80 col violation. 
llvm-svn: 101806
 2010-04-19 19:17:44 +00:00