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6478 Commits

Author SHA1 Message Date
Dan Gohman
9ca724cee0 Move the PMStack class out of Pass.h and into PassManagers.h. 
llvm-svn: 48367
 2008-03-14 18:14:29 +00:00
Evan Cheng
98eaed9fbc Add an MO_Undef MachineOperandType, intended for INSERT_SUBREG. Next up MO_Undead. 
llvm-svn: 48353
 2008-03-14 01:47:49 +00:00
Evan Cheng
d466e7a521 Forgot this. 
llvm-svn: 48349
 2008-03-14 00:17:29 +00:00
Dan Gohman
89e8681ac5 Fix a typo in a comment. 
llvm-svn: 48345
 2008-03-13 23:04:27 +00:00
Devang Patel
2c38efe128 Remove unused GetAddressOfSymbol() 
Thanks Daniel Dunbar!

llvm-svn: 48340
 2008-03-13 16:55:34 +00:00
Christopher Lamb
0f1c32eb63 Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects. 
Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.
llvm-svn: 48329
 2008-03-13 05:47:01 +00:00
Chris Lattner
a14cdebdd9 move a bunch of trivial methods to be inline. 
llvm-svn: 48326
 2008-03-13 05:00:21 +00:00
Chris Lattner
d4a9aafc3f Various improvements suggested by Duncan 
llvm-svn: 48325
 2008-03-13 04:33:03 +00:00
Evan Cheng
a3b56a661c Improve VarInfo::removeKill() by using std::find instead of linear search. 
llvm-svn: 48321
 2008-03-13 02:42:55 +00:00
Dan Gohman
abf6c9aa1d Change PMTopLevelManager's PassManagers vector element type from 
Pass* to PMDataManager*. PMDataManager is more specific than Pass,
so this more accurately describes the objects that are being stored.

This eliminates the need for several dynamic_casts to PMDataManager*.
It does introduce one dynamic_cast though, in dumpPasses(). Give
this one a comment describing why a dynamic_cast is being used.

llvm-svn: 48315
 2008-03-13 01:48:32 +00:00
Dan Gohman
70f4b55e3f Change PMStack::push to accept a PMDataManager* instead of 
a Pass*. PMDataManager* is what it actually holds, so this
makes it clearer.

llvm-svn: 48314
 2008-03-13 01:21:31 +00:00
Dan Gohman
6c18f26790 Fix a typo in a comment. 
llvm-svn: 48313
 2008-03-13 01:08:50 +00:00
Dan Gohman
339b887ff6 No need for typedefs with enums in C++. 
llvm-svn: 48312
 2008-03-13 01:07:53 +00:00
Evan Cheng
b9fc5d6d07 Refactor some code out of MachineSink into a MachineInstr query. 
llvm-svn: 48311
 2008-03-13 00:44:09 +00:00
Evan Cheng
620fd19798 Experimental scheduler change to schedule / coalesce the copies added for function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted: 
entry: 0x12049d0, LLVM BB @0x1201fd0, ID#0:
Live Ins: %EAX %EDX %ECX
        %reg1031<def> = MOVPC32r 0
        %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
        %reg1028<def> = MOV32rr %EAX
        %reg1029<def> = MOV32rr %EDX
        %reg1030<def> = MOV32rr %ECX
        %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x1201910 + 0]
        %reg1025<def> = MOV32rr %reg1029
        %reg1026<def> = MOV32rr %reg1030
        %reg1024<def> = MOV32rr %reg1028

The copies unnecessarily increase register pressure and it will end up requiring a physical register to be spilled.

With -schedule-livein-copies:
entry: 0x12049d0, LLVM BB @0x1201fa0, ID#0:
Live Ins: %EAX %EDX %ECX
        %reg1031<def> = MOVPC32r 0
        %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
        %reg1024<def> = MOV32rr %EAX
        %reg1025<def> = MOV32rr %EDX
        %reg1026<def> = MOV32rr %ECX
        %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x12018e0 + 0]

Much better!

llvm-svn: 48307
 2008-03-12 22:19:41 +00:00
Duncan Sands
05eb212b2d Don't try to extract an i32 from an f64. This 
getCopyToParts problem was noticed by the new
LegalizeTypes infrastructure.  In order to avoid
this kind of thing in the future I've added a
check that EXTRACT_ELEMENT is only used with
integers.  Once LegalizeTypes is up and running
most likely BUILD_PAIR and EXTRACT_ELEMENT can
be removed, in favour of using apints instead.

llvm-svn: 48294
 2008-03-12 20:30:08 +00:00
Chris Lattner
7925cc72c0 Reimplement the parameter attributes support, phase #1. hilights: 
1. There is now a "PAListPtr" class, which is a smart pointer around
   the underlying uniqued parameter attribute list object, and manages
   its refcount.  It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
   the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
   longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
   ParamAttrsWithIndex's, no need to make a SmallVector of a specific 
   size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
   dereferencing the pointer is simplified to just access the 
   PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
   bit simpler.

Phase #2 will rename some stuff (e.g. PAListPtr) and do other less 
invasive changes.

llvm-svn: 48289
 2008-03-12 17:45:29 +00:00
Evan Cheng
59831b0358 Document an implementation detail about EXTRACT_SUBREG and INSERT_SUBREG sub-register operand. 
llvm-svn: 48283
 2008-03-12 07:52:15 +00:00
Dan Gohman
8e3c88c4e9 Use PassManagerBase instead of FunctionPassManager for functions 
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.

llvm-svn: 48256
 2008-03-11 22:29:46 +00:00
Anton Korobeynikov
38bc6e43f7 Add helper for ultimate aliasee resoltion 
llvm-svn: 48255
 2008-03-11 22:28:56 +00:00
Devang Patel
5f5912ba27 Fix getOperand() for ReturnInst. 
llvm-svn: 48229
 2008-03-11 17:35:03 +00:00
Dan Gohman
2b0112a65a Give PassManager and FunctionPassManager a common base class, with 
add(Pass *) as a pure virtual member function. This will allow all
the various addPassesTo* functions in LLVM to avoid hard-coding what
type of PassManager is used. 

llvm-svn: 48226
 2008-03-11 16:41:42 +00:00
Evan Cheng
af1c76846d When the register allocator runs out of registers, spill a physical register around the def's and use's of the interval being allocated to make it possible for the interval to target a register and spill it right away and restore a register for uses. This likely generates terrible code but is before than aborting. 
llvm-svn: 48218
 2008-03-11 07:19:34 +00:00
Dan Gohman
67aed9bbb0 Implement more support for fp-to-i128 and i128-to-fp conversions. 
llvm-svn: 48189
 2008-03-10 23:03:31 +00:00
Evan Cheng
067ecbc341 Revert 48125, 48126, and 48130 for now to unbreak some x86-64 tests. 
llvm-svn: 48167
 2008-03-10 19:31:26 +00:00
Dale Johannesen
2bbe0d95cf Use uint64_t not unsigned long long. 
llvm-svn: 48154
 2008-03-10 17:05:01 +00:00
Scott Michel
bb8e8fca47 Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's 
return ValueType can depend its operands' ValueType.

This is a cosmetic change, no functionality impacted.

llvm-svn: 48145
 2008-03-10 15:42:14 +00:00
Christopher Lamb
32e5ce3d96 Allow insert_subreg into implicit, target-specific values. 
Change insert/extract subreg instructions to be able to be used in TableGen patterns.
Use the above features to reimplement an x86-64 pseudo instruction as a pattern.

llvm-svn: 48130
 2008-03-10 06:12:08 +00:00
Dale Johannesen
e6b0009792 Increase ISD::ParamFlags to 64 bits. Increase the ByValSize 
field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff.  Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and 
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)

llvm-svn: 48122
 2008-03-10 02:17:22 +00:00
Nick Lewycky
50c8d20ca2 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.

llvm-svn: 48088
 2008-03-09 05:24:34 +00:00
Nick Lewycky
c64eb33c52 Two things. Preserve the unwind_to when splitting a BB. 
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.

llvm-svn: 48085
 2008-03-09 05:04:48 +00:00
Nick Lewycky
e13db2c263 Not all users of a BB are Instructions any more. 
llvm-svn: 48047
 2008-03-08 07:48:41 +00:00
Dan Gohman
8ff072e188 Remove unused runPass methods. 
llvm-svn: 48044
 2008-03-08 01:43:56 +00:00
Evan Cheng
dba1dfe962 Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions. 
llvm-svn: 48042
 2008-03-08 00:58:38 +00:00
Dan Gohman
e2d3f86306 There is no killUse. 
llvm-svn: 48034
 2008-03-07 22:24:41 +00:00
Devang Patel
494c61fd20 Add new sretpromotion pass. 
llvm-svn: 48032
 2008-03-07 21:07:34 +00:00
Devang Patel
a96cf89c33 RetVal is not used when there are more then one return operands. 
llvm-svn: 48022
 2008-03-07 20:08:07 +00:00
Andrew Lenharth
6c788376e9 add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too 
llvm-svn: 48015
 2008-03-07 19:51:57 +00:00
Gordon Henriksen
5da39fa644 Cleanup some comments in the OCaml bindings. 
Patch by Erick Tryzelaar.

llvm-svn: 48014
 2008-03-07 19:13:06 +00:00
Bill Wendling
b33eee09d2 When setting the "unused" info, take into account something like this: 
%r3<def> = OR %x3<kill>, %x3

We don't want to mark the %r3 as unused even though it's a sub-register of %x3.

llvm-svn: 48003
 2008-03-06 23:22:43 +00:00
Gabor Greif
d746841e93 fix typos 
llvm-svn: 47994
 2008-03-06 10:36:00 +00:00
Nick Lewycky
5f274047bd Treat BBs that use BBs as proper predecessors and successors in the CFG. 
llvm-svn: 47989
 2008-03-06 06:54:53 +00:00
Dale Johannesen
8322b6fb70 Clarify that CALLSEQ_START..END may not be nested, 
and add some protection against creating such.

llvm-svn: 47957
 2008-03-05 19:14:03 +00:00
Evan Cheng
e0b3c221ab Add a target lowering hook to control whether it's worthwhile to compress fp constant. 
For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive.

llvm-svn: 47931
 2008-03-05 01:30:59 +00:00
Dan Gohman
b987fe16e4 Codegen support for i128 SINT_TO_FP. 
llvm-svn: 47928
 2008-03-05 01:08:17 +00:00
Evan Cheng
18064ddb5b Refactor code. Remove duplicated functions that basically do the same thing as 
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.

llvm-svn: 47927
 2008-03-05 00:59:57 +00:00
Devang Patel
26d0fac377 Revert SmallVector ctor variants. 
llvm-svn: 47908
 2008-03-04 21:54:56 +00:00
Devang Patel
27426dedc0 Add FunctionType ctor variant that takes SmallVector params. 
llvm-svn: 47895
 2008-03-04 18:57:05 +00:00
Evan Cheng
acb7d77409 Fix 80 column violations. 
llvm-svn: 47877
 2008-03-04 03:19:19 +00:00
Evan Cheng
b5b16810ac Rename isOperand() to isOperandOf() (and other similar methods). It always confuses me. 
llvm-svn: 47872
 2008-03-04 00:41:45 +00:00