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Author SHA1 Message Date
Nick Lewycky
b6eabff169 Fold away one multiply in instcombine. This would normally be caught in 
reassociate anyways, but they could be generated during instcombine's run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:42:09 +00:00
Chris Lattner
9d3e5d476c Fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:30:27 +00:00
Nate Begeman
63ec90a6a8 SSE 4.1 Intrinsics and detection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46681 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:18:54 +00:00
Chris Lattner
fcd8e9e3a2 handle the case where a node can become ready to process 
multiple times due to a RAUW.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:13:32 +00:00
Chris Lattner
42bd25f8ec Use the new infrastructure for listening to node updates to 
keep the LegalizeTypes node flags up to date when doing a RAUW.
This fixes a nasty bug that Duncan ran into and makes the 
previous (nonbuggy case) more efficent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:08:51 +00:00
Chris Lattner
d8cd3be370 the world doesn't need my debugging code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:01:05 +00:00
Chris Lattner
f8dc0617ba Change the 'global modification' APIs in SelectionDAG to take a new 
DAGUpdateListener object pointer instead of just returning a vector 
of deleted nodes.  This makes the interfaces more efficient (no more
allocating a vector [at least a malloc], filling it in, then walking
it) and more clean.  This also allows the client to be notified of
nodes that are *changed* but not deleted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 06:49:24 +00:00
Chris Lattner
3d62d780ab explicitly include Compiler.h instead of getting it from tblgen in the middle of a class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 05:43:57 +00:00
Chris Lattner
11d049c87f Generalize the SDOperand->SDOperand form of 
SelectionDAG::ReplaceAllUsesWith to handle replacement of
an SDOperand with *any* sdoperand, not just one for a node with
a single result.  Note that this has a horrible FIXME'd hack in it
to work around PR1975.  This should be removed when PR1975 is fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 03:35:22 +00:00
Chris Lattner
a47b9bcbde don't do ReplaceUses on a result that doesn't exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46673 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 03:20:59 +00:00
Chris Lattner
a658baba78 add a -view-legalize-types-dags option, for viewing the dags going into legalize types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 02:05:04 +00:00
Evan Cheng
4eecdeb3fa Get rid of the annoying blank lines before labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46667 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 08:39:46 +00:00
Nick Lewycky
916a9f071f Don't use uninitialized values. Fixes vec_align.ll on X86 Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46666 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 08:29:58 +00:00
Evan Cheng
fcf5d4f456 Unbreak ppc debug support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46665 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 05:06:29 +00:00
Evan Cheng
a844bdeab3 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc. 
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 04:07:54 +00:00
Devang Patel
1cf47cb217 Add comment explaining what is lower level analysis pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46658 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 01:43:30 +00:00
Devang Patel
bc9ed593d7 Do not strip symbols when EH is ON. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 01:32:38 +00:00
Gordon Henriksen
e62a8a353c Fixing a bug creating floating point constants of type other 
than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46656 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 01:07:50 +00:00
Evan Cheng
b8033e821d Frame index can be negative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46655 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 00:17:00 +00:00
Lauro Ramos Venancio
859efca7f9 CBackend: Implement unaligned load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46646 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 21:25:59 +00:00
Duncan Sands
532d022794 Don't drop function/call return attributes like 'nounwind'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46645 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 20:37:16 +00:00
Evan Cheng
8e34250820 Update llvm.dbg.func.start. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46636 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 09:12:11 +00:00
Evan Cheng
1b08bbca55 Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46635 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 09:10:45 +00:00
Evan Cheng
a647c92ec2 Rename RecordLabel to RecordSourceLine because that's what it is doing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 02:05:57 +00:00
Anton Korobeynikov
ec3e5c8a39 Add convenient std::string helpers to StringMap. Patch by Mikhail Glushenkov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 23:02:33 +00:00
Evan Cheng
334dc1f58d Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 21:00:00 +00:00
Dale Johannesen
b63fa050b7 Chris' change to print an approximation to long doubles 
exposed a bug in APFloat's long double->double conversion of
NaNs.  Broke several things in the ieee part of gcc testsuite.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 18:34:01 +00:00
Anton Korobeynikov
713a13906a Reapply the patch with fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 17:43:25 +00:00
Chris Lattner
a91cfa9cd0 revert anton's recent stringmap patch, which breaks clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 17:24:51 +00:00
Anton Korobeynikov
f429a519c8 Make StringMap to be more STL'ish. Patch by Mikhail Glushenkov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 12:30:40 +00:00
Anton Korobeynikov
75fb496fc6 Whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 12:10:41 +00:00
Evan Cheng
7bdc5f734f Add a comment for a nasty short term hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 10:05:13 +00:00
Evan Cheng
bb81d97feb Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 09:59:15 +00:00
Christopher Lamb
8535624739 Allow ComplexExpressions in InstrInfo.td files to be slightly more... complex! ComplexExpressions can now have attributes which affect how TableGen interprets 
the pattern when generating matchin code. 

The first (and currently, only) attribute causes the immediate parent node of the ComplexPattern operand to be passed into the matching code rather than the node at the root of the entire DAG containing the pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 07:27:46 +00:00
Christopher Lamb
175e81598a Add more thorough error checking for NULL register classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 07:09:08 +00:00
Evan Cheng
c67aa7cbd5 Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46598 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 04:06:00 +00:00
Evan Cheng
72bebb9205 MRegisterInfo::getLocation() is a really bad idea. Its function is to calculate the offset from frame pointer to a stack slot and then storing the delta in a MachineLocation object. The name is bad (it implies a getter), and MRegisterInfo doesn't need to know about MachineLocation. 
Replace getLocation() with getFrameIndexOffset() which returns the delta from frame pointer to stack slot. Dwarf writer can then use the information for whatever it wants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46597 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 03:37:28 +00:00
Evan Cheng
0a75538a68 Makes the same change in ppc backend: avoid inserting prologue before debug labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46596 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 03:33:38 +00:00
Dan Gohman
fa9b80eb64 Avoid unnecessarily casting away const, fixing a FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 01:05:10 +00:00
Dan Gohman
bbfb9c57c7 Avoid unnecessarily casting away const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46590 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 01:01:48 +00:00
Dan Gohman
35e9f7d711 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:44:33 +00:00
Dan Gohman
1a0248690a Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting 
with the real FLT_ROUNDS (defined in <float.h>).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:41:03 +00:00
Evan Cheng
00dff8dda2 Also avoid adding callee save code before debug labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46586 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:27:49 +00:00
Dan Gohman
c6c391dadd Create a new class, MemOperand, for describing memory references 
in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.

Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.

Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:25:39 +00:00
Evan Cheng
294e652491 Fixed a bug in MergeValueInAsValue() pointed out by David Greene. Replace val# with previous liverange's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46579 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 22:44:55 +00:00
Evan Cheng
965d1b4bba Treat the label for the first @llvm.dbg.stoppoint the same way as the dbg_func_start label. Make sure nothing else is inserted before them. 
Note this solution might be somewhat fragile since ISD::LABEL may be used for other
purposes. If that ends up to be an issue, we may need to introduce a different node
for debug labels.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 20:08:35 +00:00
Dale Johannesen
43b8f3b7d3 Adjust loop per review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:44:39 +00:00
Evan Cheng
6b2cf285bd A semi-gross fix for a debug info issue. When inserting the "function start" label (i.e. first label in the entry block) take care to insert it at the beginning of the block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:35:32 +00:00
Devang Patel
59c8d8ae89 Supply appropriate arch info to darwin assembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46567 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:19:31 +00:00
Dale Johannesen
7757fff6ae Accept getelementptr starting at GV with all 0 indices as a 
legitimate way of representing global variable GV in debug info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46565 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:00:21 +00:00