e93762d36e
Allow legalizer to expand ISD::MUL using only MULHS in the rare case that is
...
possible and the target only supports MULHS.
llvm-svn: 30022
2006-09-01 18:17:58 +00:00
5352d0cc4d
Corrections.
...
llvm-svn: 30021
2006-09-01 12:55:05 +00:00
93c067dc2d
Pull some code out of a hot recursive function because the common case doesn't
...
need recursion.
llvm-svn: 30015
2006-09-01 07:00:23 +00:00
3eac2c87aa
Reserve space in the ValueNumberInfo vector. This speeds up live interval
...
analysis 16% on crafty.
Wrap long lines.
llvm-svn: 30012
2006-09-01 06:10:18 +00:00
f765351978
Iterative coallescing doesn't buy us anything (we get identical results on
...
crafty with and without it). Removing it speeds up live intervals 6%.
llvm-svn: 30010
2006-09-01 04:02:42 +00:00
31305c45da
DAG combiner fix for rotates. Previously the outer-most condition checks
...
for ROTL availability. This prevents it from forming ROTR for targets that
has ROTR only.
llvm-svn: 29997
2006-08-31 07:41:12 +00:00
a700a19d04
Add a special case that speeds up coallescing a bit, but not enough.
...
llvm-svn: 29996
2006-08-31 06:48:26 +00:00
78cca7243c
Delete copies as they are coallesced instead of waiting until the end.
...
llvm-svn: 29995
2006-08-31 05:58:59 +00:00
aa36808fd3
avoid calling the virtual isMoveInstr method endlessly by caching its results.
...
llvm-svn: 29994
2006-08-31 05:54:43 +00:00
cb74860cce
Fix a compiler crash bootstrapping llvm-gcc.
...
llvm-svn: 29989
2006-08-30 23:02:29 +00:00
34434e97c9
Teach the coallescer to coallesce live intervals joined by an arbitrary
...
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced. Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.
llvm-svn: 29968
2006-08-29 23:18:15 +00:00
2eebe8b05e
Handle callee saved registers in dwarf frame info (lead up to exception
...
handling.)
llvm-svn: 29954
2006-08-29 16:24:26 +00:00
e5570a4c3f
Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG.
...
llvm-svn: 29951
2006-08-29 06:42:35 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
...
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
3c9b2420df
Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.
...
llvm-svn: 29921
2006-08-27 22:30:17 +00:00
3d27be1333
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
...
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
2c3683a901
typo fix
...
llvm-svn: 29910
2006-08-27 12:47:48 +00:00
849f4bf8dd
Eliminate SelectNodeTo() and getTargetNode() variants which take more than
...
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.
llvm-svn: 29905
2006-08-27 08:08:54 +00:00
7851db75d9
Properly size the string table, and emit symbol table and string table
...
entries in the correct order, fixing several fixmes.
llvm-svn: 29902
2006-08-26 15:46:34 +00:00
34b70eea5c
SelectNodeTo now returns a SDNode*.
...
llvm-svn: 29901
2006-08-26 08:00:10 +00:00
122f2bcdc2
Simplifications to liveinterval analysis, no functionality change.
...
llvm-svn: 29896
2006-08-26 01:28:16 +00:00
f4f0b1995c
Completely change the way that joining with physregs is implemented. This
...
paves the way for future changes, increases coallescing opportunities (in
theory, not witnessed in practice), and eliminates the really expensive
LiveIntervals::overlapsAliases method.
llvm-svn: 29890
2006-08-25 23:41:24 +00:00
fb96c74874
Tidy up.
...
llvm-svn: 29888
2006-08-25 22:56:30 +00:00
92206f9404
Consolidate callee saved register information so that it can me used by debug
...
information and exception handling.
llvm-svn: 29881
2006-08-25 19:45:51 +00:00
f8bf1e6034
Allow for register numbers > 31.
...
llvm-svn: 29879
2006-08-25 19:39:52 +00:00
89fa9c7d65
Get closer to handling globals correctly. We now generally get them in the
...
right section.
llvm-svn: 29871
2006-08-25 06:36:58 +00:00
24d4208c97
When replacing value numbers, make sure to compactify the value # space.
...
llvm-svn: 29865
2006-08-24 23:22:59 +00:00
bdf121060c
Take advantage of the recent improvements to the liveintervals set (tracking
...
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:
1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
better solution.
3. Implements PR865, "coallescing" away the second copy in code like:
A = B
...
B = A
This also includes changes to symbolically print registers in intervals
when possible.
llvm-svn: 29862
2006-08-24 22:43:55 +00:00
3cb3921a60
Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
...
does emit linkable .o files in very simple cases.
llvm-svn: 29850
2006-08-23 21:08:52 +00:00
2e9f1bc056
Improve the LiveInterval class to keep track of which machine instruction
...
defines each value# tracked by the interval. This will be used to improve
coallescing.
llvm-svn: 29830
2006-08-22 18:19:46 +00:00
1d77a0ff88
Print physreg names symbolically in dumps
...
llvm-svn: 29805
2006-08-21 23:03:54 +00:00
213159a6ee
Print debug info as:
...
*** Register mapping ***
reg 1024 -> %reg1028
reg 1026 -> EAX
reg 1027 -> %reg1028
instead of:
*** Register mapping ***
reg 1024 -> reg 1028
reg 1026 -> reg 15
reg 1027 -> reg 1028
llvm-svn: 29803
2006-08-21 22:56:29 +00:00
b6ac11e120
Adding C++ member support.
...
llvm-svn: 29799
2006-08-21 21:20:18 +00:00
451b099113
Fix PR861
...
llvm-svn: 29796
2006-08-21 20:24:53 +00:00
04f2246400
Added a check so that if we have two machine instructions in this form
...
MOV R0, R1
MOV R1, R0
the second machine instruction is removed. Added a regression test.
llvm-svn: 29792
2006-08-21 07:33:33 +00:00
d86418ab20
switch the SUnit pred/succ sets from being std::sets to being smallvectors.
...
This reduces selectiondag time on kc++ from 5.43s to 4.98s (9%). More
significantly, this speeds up the default ppc scheduler from ~1571ms to 1063ms,
a 33% speedup.
llvm-svn: 29743
2006-08-17 00:09:56 +00:00
65879caf07
minor changes.
...
llvm-svn: 29740
2006-08-16 22:57:46 +00:00
a4f3625c23
Use the appropriate typedef
...
llvm-svn: 29730
2006-08-16 20:59:32 +00:00
a5a3eafbd0
Start using SDVTList more consistently
...
llvm-svn: 29711
2006-08-15 19:11:05 +00:00
f98411a220
add a new SDVTList type and new SelectionDAG::getVTList methods to streamline
...
the creation of canonical VTLists.
llvm-svn: 29709
2006-08-15 17:46:01 +00:00
bd8877744b
eliminate use of getNode that takes vector of valuetypes.
...
llvm-svn: 29687
2006-08-14 23:53:35 +00:00
3bf4be453f
Add a new getNode() method that takes a pointer to an already-intern'd list
...
of value-type nodes. This avoids having to do mallocs for std::vectors of
valuetypes when a node returns more than one type.
llvm-svn: 29685
2006-08-14 23:31:51 +00:00
e93a39f2d7
remove SelectionDAG::InsertISelMapEntry, it is dead
...
llvm-svn: 29677
2006-08-14 22:24:39 +00:00
63268f0672
Add code to resize the CSEMap hash table. This doesn't speedup codegen of
...
kimwitu, but seems like a good idea from a "avoid performance cliffs" standpoint :)
llvm-svn: 29675
2006-08-14 22:19:25 +00:00
8e37283d8b
Add the actual constant to the hash for ConstantPool nodes. Thanks to
...
Rafael Espindola for pointing this out.
llvm-svn: 29669
2006-08-14 20:12:44 +00:00
984c1a4a8f
Emit .set directives for jump table entries when possible, which reduces
...
the number of relocations in object files, shrinkifying them.
llvm-svn: 29650
2006-08-12 21:29:52 +00:00
167ea3eb5f
Fix an obvious bug, noticed by inspection. No current targets trigger this.
...
llvm-svn: 29648
2006-08-12 05:41:39 +00:00
0a60294fa0
Switch to using SuperFastHash instead of adding all elements together. This
...
doesn't significantly improve performance but it helps a small amount.
llvm-svn: 29642
2006-08-12 01:07:10 +00:00
04aa034f38
Switch NodeID to track 32-bit chunks instead of 8-bit chunks, for a 2.5%
...
speedup in isel time.
llvm-svn: 29640
2006-08-11 23:55:53 +00:00
0c2e5412bb
Remove 8 more std::map's.
...
llvm-svn: 29631
2006-08-11 21:55:30 +00:00
3f16b201e2
Move the BBNodes, GlobalValues, TargetGlobalValues, Constants, TargetConstants,
...
RegNodes, and ValueNodes maps into the CSEMap.
llvm-svn: 29626
2006-08-11 21:01:22 +00:00
fcb16470ec
eliminate the NullaryOps map, use CSEMap instead.
...
llvm-svn: 29621
2006-08-11 18:38:11 +00:00
6f22ebd8be
change internal impl of dag combiner so that calls to CombineTo never have to
...
make a temporary vector.
llvm-svn: 29618
2006-08-11 17:56:38 +00:00
a2f4086828
Change one ReplaceAllUsesWith method to take an array of operands to replace
...
instead of a vector of operands.
llvm-svn: 29616
2006-08-11 17:46:28 +00:00
c24a1d3093
Start eliminating temporary vectors used to create DAG nodes. Instead, pass
...
in the start of an array and a count of operands where applicable. In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap. In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.
I updated a lot of code calling getNode that takes a vector, but ran out of
time. The rest of the code should be updated, and these methods should be
removed.
We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.
It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.
llvm-svn: 29566
2006-08-08 02:23:42 +00:00
97af9d5d3a
Eliminate some malloc traffic by allocating vectors on the stack. Change some
...
method that took std::vector<SDOperand> to take a pointer to a first operand
and #operands.
This speeds up isel on kc++ by about 3%.
llvm-svn: 29561
2006-08-08 01:09:31 +00:00
1ee75ce65d
Revamp the "CSEMap" datastructure used in the SelectionDAG class. This
...
eliminates a bunch of std::map's in the SelectionDAG, replacing them with a
home-grown hashtable.
This is still a work in progress: not all the maps have been moved over and the
hashtable never resizes. That said, this still speeds up llc 20% on kimwitu++
with -fast -regalloc=local using a release build.
llvm-svn: 29550
2006-08-07 23:03:03 +00:00
445b91a041
Clear TopOrder before assigning topological order. Some clean ups.
...
llvm-svn: 29546
2006-08-07 22:13:29 +00:00
1640ae5a84
Reverse the FlaggedNodes after scanning up for flagged preds or else the order would be reversed.
...
llvm-svn: 29545
2006-08-07 22:12:12 +00:00
8927c875bb
Make SelectionDAG::RemoveDeadNodes iterative instead of recursive, which
...
also make it simpler.
llvm-svn: 29524
2006-08-04 17:45:20 +00:00
a5b707e3ad
Copy the liveins for the first block. PR859
...
llvm-svn: 29511
2006-08-03 20:51:06 +00:00
524c1a21f2
Work around a GCC 3.3.5 bug noticed by a user.
...
llvm-svn: 29490
2006-08-03 00:18:59 +00:00
6efe304ec8
Work around a bug in gcc 3.3.5, reported by a user
...
llvm-svn: 29489
2006-08-03 00:16:56 +00:00
bba1ebda32
- Change AssignTopologicalOrder to return vector of SDNode* by reference.
...
- Tweak implementation to avoid using std::map.
llvm-svn: 29479
2006-08-02 22:00:34 +00:00
29e635d3c9
Final polish on machine pass registries.
...
llvm-svn: 29471
2006-08-02 12:30:23 +00:00
17c67efe8a
Now that the ISel is available, it's possible to create a default instruction
...
scheduler creator.
llvm-svn: 29452
2006-08-01 19:14:14 +00:00
03593f72db
1. Change use of "Cache" to "Default".
...
2. Added argument to instruction scheduler creators so the creators can do
special things.
3. Repaired target hazard code.
4. Misc.
More to follow.
llvm-svn: 29450
2006-08-01 18:29:48 +00:00
0ec39ee28e
Forgot the added files for plugable machine passes.
...
llvm-svn: 29436
2006-08-01 16:31:08 +00:00
95eda5b1f3
Introducing plugable register allocators and instruction schedulers.
...
llvm-svn: 29434
2006-08-01 14:21:23 +00:00
9631a60020
Added AssignTopologicalOrder() to assign each node an unique id based on their topological order.
...
llvm-svn: 29431
2006-08-01 08:20:41 +00:00
6ae6ac1216
PIC jump table entries are always 32-bit even in 64-bit mode.
...
llvm-svn: 29422
2006-08-01 01:03:13 +00:00
85492427f2
Instead of blindly looking past constantexpr casts, actually constant
...
fold them. This correctly truncates constants that are too large for the
destination slot and makes the code easier to understand. This fixes PR853
and Regression/CodeGen/X86/2006-07-28-AsmPrint-Long-As-Pointer.ll
llvm-svn: 29408
2006-07-29 01:57:19 +00:00
b572401bea
Remove InFlightSet hack. No longer needed.
...
llvm-svn: 29373
2006-07-28 00:47:19 +00:00
3390cbed2c
Print empty inline asms as a blank line instead of:
...
# InlineAsm Start
# InlineAsm End
llvm-svn: 29372
2006-07-28 00:17:20 +00:00
d1a714e503
Working toward registration of register allocators.
...
llvm-svn: 29360
2006-07-27 20:05:00 +00:00
efc312a5c7
Code cleanups, per review
...
llvm-svn: 29347
2006-07-27 16:46:58 +00:00
acb606ff33
AssignNodeIds should return unsigned.
...
llvm-svn: 29343
2006-07-27 07:36:47 +00:00
29eefc164c
AssignNodeIds assign each node in the DAG an unique id.
...
llvm-svn: 29337
2006-07-27 06:39:06 +00:00
85ea83e821
Add some advice
...
llvm-svn: 29324
2006-07-27 04:24:14 +00:00
787565024a
Support jump tables when in PIC relocation model
...
llvm-svn: 29318
2006-07-27 01:13:04 +00:00
4488f0c303
Fix a case where LegalizeAllNodesNotLeadingTo could take exponential time.
...
This manifested itself as really long time to compile
Regression/CodeGen/Generic/2003-05-28-ManyArgs.ll on ppc.
This is PR847.
llvm-svn: 29313
2006-07-26 23:55:56 +00:00
421475cd3b
For PR780:
...
1. Move IncludeFile.h to System library
2. Move IncludeFile.cpp to System library
3. #1 and #2 required to prevent cyclic library dependencies for libSystem
4. Convert all existing uses of Support/IncludeFile.h to System/IncludeFile.h
5. Add IncludeFile support to various lib/System classes.
6. Add new lib/System classes to LinkAllVMCore.h
All this in an attempt to pull in lib/System to what's required for VMCore
llvm-svn: 29287
2006-07-26 16:18:00 +00:00
658b9476f0
Initialize some variables the compiler warns about.
...
llvm-svn: 29277
2006-07-25 20:44:41 +00:00
4b49c23571
Eliminate data relocations by using NULL instead of global empty list.
...
llvm-svn: 29250
2006-07-21 21:15:20 +00:00
4e153f1b91
Use an enumeration to eliminate data relocations.
...
llvm-svn: 29249
2006-07-21 20:57:35 +00:00
7c970b98d0
If a shuffle is a splat, check if the argument is a build_vector with all elements being the same. If so, return the argument.
...
llvm-svn: 29242
2006-07-21 08:25:53 +00:00
55782c6c41
Build more debugger/selectiondag libraries as archives instead of .o files.
...
This works around bugs in some versions of the cygwin linker.
Patch contributed by Anton Korobeynikov.
llvm-svn: 29239
2006-07-21 00:10:47 +00:00
8472e0c4af
If a shuffle is unary, i.e. one of the vector argument is not needed, turn the
...
operand into a undef and adjust mask accordingly.
llvm-svn: 29232
2006-07-20 22:44:41 +00:00
b030532910
Mems can be in the output list also. This is the second half of a fix for
...
PR833
llvm-svn: 29224
2006-07-20 19:02:21 +00:00
ec104a2b41
80 cols
...
llvm-svn: 29221
2006-07-20 17:43:27 +00:00
c496b418b5
Reduce number of exported symbols
...
llvm-svn: 29220
2006-07-20 17:28:38 +00:00
2b0baddc33
Fix linking on Alpha
...
llvm-svn: 29219
2006-07-20 17:27:58 +00:00
4238ca55ef
Move MVT::getVectorType out of line, it is large and shouldn't be inlined.
...
llvm-svn: 29195
2006-07-19 00:40:45 +00:00
c0973edc69
Add an out-of-line virtual method for the sdnode class to give it a home.
...
llvm-svn: 29192
2006-07-19 00:00:37 +00:00
fd5a8ebb74
On 64-bit targets like ppc64, we should use .quad to output pointer directives,
...
not .long.
llvm-svn: 29157
2006-07-15 01:34:12 +00:00
436c2dd927
Add an out-of-line virtual function to home class.
...
llvm-svn: 29154
2006-07-14 23:08:47 +00:00
194bef7ff4
Fixed a bug handling void function types.
...
Requires rebuild of llvm-gcc4 (touch llvm-debug.cpp.)
llvm-svn: 29131
2006-07-13 15:27:42 +00:00
f7300b2706
It was pointed out that DEBUG() is only available with -debug.
...
llvm-svn: 29106
2006-07-11 18:25:13 +00:00
c3d341ea98
Ensure that dump calls that are associated with asserts are removed from
...
non-debug build.
llvm-svn: 29105
2006-07-11 17:58:07 +00:00
6c72aa7411
1. Support for c++ mangled names.
...
2. Support for private/protected class members.
llvm-svn: 29104
2006-07-11 15:58:09 +00:00
Evan Cheng