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c0bf114984
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38196 Commits

Author SHA1 Message Date
Dale Johannesen
c0bf114984 Fix a bug where debug info affected stack slot coloring. 
Seen in SingleSrc/Benchmarks/Misc/flops with TEST=optllcdbg.
7929951.

llvm-svn: 102819
 2010-05-01 00:41:15 +00:00
Dan Gohman
1a6c7dfb3e Fix whitespace. 
llvm-svn: 102817
 2010-05-01 00:33:28 +00:00
Dan Gohman
37fe41a8c0 Don't pass SDValues by non-const reference unless they may be 
modified.

llvm-svn: 102816
 2010-05-01 00:33:16 +00:00
Dan Gohman
0561bd78d0 Reorgnaize more switch code lowering to clean up some tricky 
code, and to eliminate the need for the SelectionDAGBuilder
state to be live during CodeGenAndEmitDAG calls.

Call SDB->clear() before CodeGenAndEmitDAG calls instead of
before it, and move the CurDAG->clear() out of SelectionDAGBuilder,
which doesn't own the DAG, and into CodeGenAndEmitDAG.

llvm-svn: 102814
 2010-05-01 00:25:44 +00:00
Dan Gohman
d59de31ce2 Delete the EdgeMapping variable itself. 
llvm-svn: 102810
 2010-05-01 00:02:20 +00:00
Dan Gohman
68f04d06c8 Get rid of the EdgeMapping map. Instead, just check for BasicBlock 
changes before doing phi lowering for switches.

llvm-svn: 102809
 2010-05-01 00:01:06 +00:00
Dan Gohman
9281e7be3e Fix a typo. 
llvm-svn: 102799
 2010-04-30 22:38:11 +00:00
Chris Lattner
3eb6a9f076 Dan recently disabled recursive inlining within a function, but we 
were still inlining self-recursive functions into other functions.

Inlining a recursive function into itself has the potential to
reduce recursion depth by a factor of 2, inlining a recursive
function into something else reduces recursion depth by exactly 
1.  Since inlining a recursive function into something else is a
weird form of loop peeling, turn this off.

The deleted testcase was added by Dale in r62107, since then
we're leaning towards not inlining recursive stuff ever.  In any
case, if we like inlining recursive stuff, it should be done 
within the recursive function itself to get the algorithm 
recursion depth win.

llvm-svn: 102798
 2010-04-30 22:37:22 +00:00
Bill Wendling
95a4929ac7 EXTRACT_VECTOR_ELT of an INSERT_VECTOR_ELT may have the same index, but the 
indexes could be of a different value type. Or not even using the same SDNode
for the constant (weird, I know). Compare the actual values instead of the
pointers.

llvm-svn: 102791
 2010-04-30 22:19:17 +00:00
Dan Gohman
e980525516 Remove this debug output. The MachineFunction will be printed once all of 
instruction selection is done; it's confusing to see parts of it printed,
while other parts are omitted, along the way.

llvm-svn: 102771
 2010-04-30 21:21:21 +00:00
Jakob Stoklund Olesen
fac584ed9e The local register allocator has to spill dirty callee saved registers before a 
call that might throw. The landing pad assumes that all registers are in stack
slots.

We used to spill those dirty CSRs after the call, and the stack slots would be
wrong when arriving at the landing pad.

llvm-svn: 102770
 2010-04-30 21:19:29 +00:00
Devang Patel
8146cb492f Preserve debug info attached with call instruction while eliminating dead argument. 
Radar 7927803

llvm-svn: 102760
 2010-04-30 20:23:54 +00:00
Dan Gohman
a78e35e7d9 Make this code less confusing. Instead of reassigning BB, just operate 
on the original variables, so it's easier to see what is being done
to which blocks.

llvm-svn: 102759
 2010-04-30 20:14:26 +00:00
Devang Patel
52c2d4d378 Attach AT_APPLE_optimized attribute to optimized function's debug info. 
llvm-svn: 102743
 2010-04-30 19:38:23 +00:00
Dan Gohman
066b8d3640 EmitDbgValue doesn't need its EdgeMapping argument. 
llvm-svn: 102742
 2010-04-30 19:35:33 +00:00
Dan Gohman
116829ede7 Set isSigned to true when creating an all-ones integer constant, even 
for unsigned purposes, so >64-bit integer values get a full all-ones
value.

llvm-svn: 102739
 2010-04-30 19:22:39 +00:00
Dan Gohman
3c454a3df0 Silence compiler warnings. 
llvm-svn: 102734
 2010-04-30 19:21:13 +00:00
Dan Gohman
6944fae2f6 Add lint checks for invalid uses of memory. 
llvm-svn: 102733
 2010-04-30 19:05:00 +00:00
Dan Gohman
c283eda8ab Remove the -disable-16bit command-line option, which is now obsolete. 
llvm-svn: 102730
 2010-04-30 18:30:26 +00:00
Jakob Stoklund Olesen
1fb8dbce5a Don't use floating point in SimpleRegisterCoalescing. 
Rounding differences causes tests to fail on Linux.

llvm-svn: 102729
 2010-04-30 18:28:11 +00:00
Dan Gohman
e9ff394082 Apply a patch from Jan Sjodin to fix a compiler abort on vector 
comparisons sign-extended to a different bitwidth than the
comparison operands.

llvm-svn: 102721
 2010-04-30 17:19:19 +00:00
Evan Cheng
9303b11e47 Another sibcall bug. If caller and callee calling conventions differ, then it's only safe to do a tail call if the results are returned in the same way. 
llvm-svn: 102683
 2010-04-30 01:12:32 +00:00
Dan Gohman
140e0899ad Temporarily disable SelectionDAG kill flags, which are causing trouble. 
llvm-svn: 102680
 2010-04-30 00:32:51 +00:00
Jeffrey Yasskin
db377e2f86 Fix the OProfileJITEventListener build after r101844 removed 
MachineFunction::DefaultDebugLoc.  We now use the same technique as
DwarfDebug::beginFunction to find the starting line number for a
function.

llvm-svn: 102679
 2010-04-30 00:16:10 +00:00
Dan Gohman
1534ad2d28 Set register kill flags on the SelectionDAG path, at least in the 
easy cases.

llvm-svn: 102678
 2010-04-30 00:08:21 +00:00
Jakob Stoklund Olesen
01254ea96d Reject really weird coalescer case when trying to merge identical subregisters 
of different register classes. e.g.

  %reg1048:3<def> = EXTRACT_SUBREG %RAX<kill>, 3

Where %reg1048 is a GR32 register. This is not impossible to handle, but it is
pretty hard and very rare.

This should unbreak the dragonegg builder.

llvm-svn: 102672
 2010-04-29 23:47:46 +00:00
Dan Gohman
0a6811070b Don't leave Base.FrameIndex uninitialized, so that it doesn't 
print randomly in debug output.

llvm-svn: 102668
 2010-04-29 23:30:41 +00:00
Dan Gohman
b8cdd4037b Fix typos in assertion strings. 
llvm-svn: 102666
 2010-04-29 23:25:34 +00:00
Jakob Stoklund Olesen
1fea22bc70 Slightly verboser debug spew from coalescer 
llvm-svn: 102663
 2010-04-29 22:21:48 +00:00
Devang Patel
bdfc01f418 Refactor. 
llvm-svn: 102661
 2010-04-29 20:40:36 +00:00
Dale Johannesen
a4fd142987 Make naked functions work on PPC. 
llvm-svn: 102657
 2010-04-29 19:32:19 +00:00
Devang Patel
c34efcfee7 Print variable scope name in DEBUG_VALUE comment. Useful in some cases. e.g. 
##DEBUG_VALUE: runOnMachineFunction:this <- RDI+0
	##DEBUG_VALUE: runOnMachineFunction:fn <- RSI+0
	##DEBUG_VALUE: DeadDefs <- undef ## SimpleRegisterCoalescing.cpp:2706
	##DEBUG_VALUE: getRegInfo:this <- [%rsp+$56]+$0
	##DEBUG_VALUE: getTarget:this <- [%rsp+$56]+$0

llvm-svn: 102655
 2010-04-29 18:52:10 +00:00
Evan Cheng
8ea213f823 Remove DBG_VALUE which reference dead stack slots. 
llvm-svn: 102654
 2010-04-29 18:51:00 +00:00
Devang Patel
1e28f36308 DO not push DBG_VALUE machine instructions for inlined fuction arguments in entry block. 
llvm-svn: 102653
 2010-04-29 18:50:36 +00:00
Duncan Sands
36cfc45cf3 Verify metadata harder. In particular, check that module 
level metadata does not have any function local operands.
This would have caught the problem found in PR6112.

llvm-svn: 102620
 2010-04-29 16:10:30 +00:00
Evan Cheng
b9fe4fd40c Add comment. 
llvm-svn: 102606
 2010-04-29 06:58:53 +00:00
Evan Cheng
ba7dcad569 Re-enable 102565 with fixes. 
llvm-svn: 102602
 2010-04-29 06:33:38 +00:00
Evan Cheng
da89f22f3d Load folding tail call should not use ebp / rbp after it's popped. PEI 
should use esp / rsp to reference frame instead.

llvm-svn: 102596
 2010-04-29 05:08:22 +00:00
Mon P Wang
bfebbd889a Add support for assemblers that don't support periods in a name 
llvm-svn: 102594
 2010-04-29 04:00:56 +00:00
Evan Cheng
3e9545cfb4 Temporarily disable my changes to unbreak the build. 
llvm-svn: 102590
 2010-04-29 03:34:19 +00:00
Evan Cheng
053000f3f5 Do not generate duplicate dbg_value instructions for function arguments. 
llvm-svn: 102585
 2010-04-29 01:40:30 +00:00
Dan Gohman
ec9e1d8a88 Fix missing #include. 
llvm-svn: 102584
 2010-04-29 01:39:13 +00:00
Evan Cheng
801b8e5530 Avoid emitting a dbg_value machineinstr that's not going to be inserted into entry block. 
llvm-svn: 102581
 2010-04-29 01:23:55 +00:00
Evan Cheng
6764226f8c Frame index can be negative. 
llvm-svn: 102577
 2010-04-29 01:13:30 +00:00
Evan Cheng
d08e8f2b24 Check Reg against zero. 
llvm-svn: 102573
 2010-04-29 00:59:34 +00:00
Evan Cheng
4137a14e18 - Really preserve dbg_value instructions when the register is spilled. 
- Also, update dbg_value is the value is being re-matted from a frame slot, e.g. fixed slots for arguments.

llvm-svn: 102565
 2010-04-28 23:52:26 +00:00
Devang Patel
84e3ddd87c tidy up. 
llvm-svn: 102558
 2010-04-28 23:24:13 +00:00
Kevin Enderby
58bed5a913 Fixed the word sized Bit Scan Forward/Reverse instructions, they needed the 
Operand size override prefix to be part of their records.

llvm-svn: 102556
 2010-04-28 23:20:40 +00:00
Evan Cheng
a02c9072fc Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done. 
llvm-svn: 102554
 2010-04-28 23:08:54 +00:00
Jim Grosbach
c9b8d992e1 Add sizes non-floating point versions for the eh sjlj intrinsic expansions. 
rdar://7895451

llvm-svn: 102526
 2010-04-28 20:33:09 +00:00