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Author SHA1 Message Date
Devang Patel
cad20dbdb0 Add comment explaining what is lower level analysis pass. 
llvm-svn: 46658
 2008-02-02 01:43:30 +00:00
Devang Patel
7410c70845 Do not strip symbols when EH is ON. 
llvm-svn: 46657
 2008-02-02 01:32:38 +00:00
Gordon Henriksen
b75d9e974d Fixing a bug creating floating point constants of type other 
than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.

llvm-svn: 46656
 2008-02-02 01:07:50 +00:00
Evan Cheng
9ff6b89bd9 Frame index can be negative. 
llvm-svn: 46655
 2008-02-02 00:17:00 +00:00
Lauro Ramos Venancio
563e0a3ea3 CBackend: Implement unaligned load/store. 
llvm-svn: 46646
 2008-02-01 21:25:59 +00:00
Duncan Sands
454a8eaee9 Don't drop function/call return attributes like 'nounwind'. 
llvm-svn: 46645
 2008-02-01 20:37:16 +00:00
Evan Cheng
567500c8be Update llvm.dbg.func.start. 
llvm-svn: 46636
 2008-02-01 09:12:11 +00:00
Evan Cheng
d6222fc11d 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. 
llvm-svn: 46635
 2008-02-01 09:10:45 +00:00
Evan Cheng
abe3a9ad27 Rename RecordLabel to RecordSourceLine because that's what it is doing. 
llvm-svn: 46628
 2008-02-01 02:05:57 +00:00
Anton Korobeynikov
1cc154d068 Add convenient std::string helpers to StringMap. Patch by Mikhail Glushenkov! 
llvm-svn: 46625
 2008-01-31 23:02:33 +00:00
Evan Cheng
2a533e6894 Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit. 
llvm-svn: 46623
 2008-01-31 21:00:00 +00:00
Dale Johannesen
c19b8c41c6 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.

llvm-svn: 46617
 2008-01-31 18:34:01 +00:00
Anton Korobeynikov
91b7d99e8a Reapply the patch with fix. 
llvm-svn: 46615
 2008-01-31 17:43:25 +00:00
Chris Lattner
87c2925656 revert anton's recent stringmap patch, which breaks clang. 
llvm-svn: 46614
 2008-01-31 17:24:51 +00:00
Anton Korobeynikov
55998b56a0 Make StringMap to be more STL'ish. Patch by Mikhail Glushenkov! 
llvm-svn: 46612
 2008-01-31 12:30:40 +00:00
Anton Korobeynikov
45e5afd820 Whitespace cleanup 
llvm-svn: 46611
 2008-01-31 12:10:41 +00:00
Evan Cheng
569eb20aac Add a comment for a nasty short term hack. 
llvm-svn: 46610
 2008-01-31 10:05:13 +00:00
Evan Cheng
705212577d 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. 
llvm-svn: 46609
 2008-01-31 09:59:15 +00:00
Christopher Lamb
1a102eecb0 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.

llvm-svn: 46606
 2008-01-31 07:27:46 +00:00
Christopher Lamb
c924dea069 Add more thorough error checking for NULL register classes. 
llvm-svn: 46605
 2008-01-31 07:09:08 +00:00
Evan Cheng
d1bed85965 Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info. 
llvm-svn: 46598
 2008-01-31 04:06:00 +00:00
Evan Cheng
a63f6736f3 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.

llvm-svn: 46597
 2008-01-31 03:37:28 +00:00
Evan Cheng
f9d2cf4cae Makes the same change in ppc backend: avoid inserting prologue before debug labels. 
llvm-svn: 46596
 2008-01-31 03:33:38 +00:00
Dan Gohman
562ed58408 Avoid unnecessarily casting away const, fixing a FIXME. 
llvm-svn: 46591
 2008-01-31 01:05:10 +00:00
Dan Gohman
018ea14d87 Avoid unnecessarily casting away const. 
llvm-svn: 46590
 2008-01-31 01:01:48 +00:00
Dan Gohman
703a070e12 Fix a typo in a comment. 
llvm-svn: 46588
 2008-01-31 00:44:33 +00:00
Dan Gohman
3993809a0c Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting 
with the real FLT_ROUNDS (defined in <float.h>).

llvm-svn: 46587
 2008-01-31 00:41:03 +00:00
Evan Cheng
3d7eda3f35 Also avoid adding callee save code before debug labels. 
llvm-svn: 46586
 2008-01-31 00:27:49 +00:00
Dan Gohman
4326d513ab 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.

llvm-svn: 46585
 2008-01-31 00:25:39 +00:00
Evan Cheng
66a9ea3aa8 Fixed a bug in MergeValueInAsValue() pointed out by David Greene. Replace val# with previous liverange's. 
llvm-svn: 46579
 2008-01-30 22:44:55 +00:00
Evan Cheng
b2b94f7a81 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.

llvm-svn: 46571
 2008-01-30 20:08:35 +00:00
Dale Johannesen
dce1b3cb2f Adjust loop per review feedback. 
llvm-svn: 46569
 2008-01-30 19:44:39 +00:00
Evan Cheng
07f3cd3242 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. 
llvm-svn: 46568
 2008-01-30 19:35:32 +00:00
Devang Patel
3467628b95 Supply appropriate arch info to darwin assembler. 
llvm-svn: 46567
 2008-01-30 19:19:31 +00:00
Dale Johannesen
916037c01a Accept getelementptr starting at GV with all 0 indices as a 
legitimate way of representing global variable GV in debug info.

llvm-svn: 46565
 2008-01-30 19:00:21 +00:00
Devang Patel
bfc534c67f Always put version numbers at the end because they are optional. 
llvm-svn: 46563
 2008-01-30 18:30:11 +00:00
Evan Cheng
918b9c9335 Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert 
instruction at the end.

llvm-svn: 46562
 2008-01-30 18:18:23 +00:00
Devang Patel
1d270b0e12 Enable exception handling if it is supported. 
llvm-svn: 46560
 2008-01-30 17:43:03 +00:00
Dan Gohman
dd9be7d05e Add a new PseudoSourceValue class, which will be used to help track 
memory reference information in the backend. Most of this was written by
Florian Brander, cleanup and updating to TOT by me.

llvm-svn: 46556
 2008-01-30 16:35:31 +00:00
Nick Lewycky
ccd60a90c5 Remove a couple more cases of "getNumUses() == 0". No need to walk the linked 
list just to see if whether the list is empty.

llvm-svn: 46555
 2008-01-30 08:01:28 +00:00
Nick Lewycky
e3818dcc4e Use empty() instead of comparing size() with zero. 
llvm-svn: 46554
 2008-01-30 07:54:16 +00:00
Nick Lewycky
719599d263 Don't DCE FreeInst's. We were using those! Patch from Owen Anderson. 
llvm-svn: 46553
 2008-01-30 07:45:37 +00:00
Tanya Lattner
bfeb583bfb Pointers change size depending upon the target. Remove them to make the test more stable. 
llvm-svn: 46548
 2008-01-30 05:15:15 +00:00
Evan Cheng
84adda6b67 Skip over the label which marks the beginning of the function before inserting prologue code. 
llvm-svn: 46546
 2008-01-30 03:57:33 +00:00
Scott Michel
4a4f50da13 Back out mods to llvmAsmParser, incorrectly committed 
llvm-svn: 46545
 2008-01-30 03:10:00 +00:00
Scott Michel
ab3702fba9 More cleanups for CellSPU: 
- Expand tabs... (poss 80-col violations, will get them later...)
- Consolidate logic for SelectDFormAddr and SelectDForm2Addr into a single
  function, simplifying maintenance. Also reduced custom instruction
  generation for SPUvecinsert/INSERT_MASK.

llvm-svn: 46544
 2008-01-30 02:55:46 +00:00
Owen Anderson
ad9a347656 Make DSE much more aggressive by performing DCE earlier. Update a testcase to reflect this increased aggressiveness. 
llvm-svn: 46542
 2008-01-30 01:24:47 +00:00
Owen Anderson
7d21431939 Fix an issue where, under very specific circumstances, memdep could end up dereferencing the end 
of one of its internal maps.

llvm-svn: 46541
 2008-01-30 01:24:05 +00:00
Chris Lattner
83227e350d Fix a bug where scalarrepl would discard offset if type would match. 
In practice this can only happen on code with already undefined behavior, 
but this is still a good thing to handle correctly.

llvm-svn: 46539
 2008-01-30 00:39:15 +00:00
Dan Gohman
13d1327796 Factor the addressing mode and the load/store VT out of LoadSDNode 
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.

llvm-svn: 46538
 2008-01-30 00:15:11 +00:00